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Message-Id: <1441086598-24995-1-git-send-email-ykk@rock-chips.com>
Date: Tue, 1 Sep 2015 13:49:58 +0800
From: Yakir Yang <ykk@...k-chips.com>
To: Heiko Stuebner <heiko@...ech.de>,
Thierry Reding <treding@...dia.com>,
Jingoo Han <jingoohan1@...il.com>,
Inki Dae <inki.dae@...sung.com>, joe@...ches.com,
Kukjin Kim <kgene@...nel.org>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Mark Yao <mark.yao@...k-chips.com>
Cc: Russell King <rmk+kernel@....linux.org.uk>, djkurtz@...omium.com,
dianders@...omium.com, seanpaul@...omium.com, ajaynumb@...il.com,
Andrzej Hajda <a.hajda@...sung.com>,
Kyungmin Park <kyungmin.park@...sung.com>,
David Airlie <airlied@...ux.ie>,
Gustavo Padovan <gustavo.padovan@...labora.co.uk>,
Andy Yan <andy.yan@...k-chips.com>,
Kumar Gala <galak@...eaurora.org>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Rob Herring <robh+dt@...nel.org>,
Pawel Moll <pawel.moll@....com>,
Kishon Vijay Abraham I <kishon@...com>,
architt@...eaurora.org, robherring2@...il.com,
Yakir Yang <ykk@...k-chips.com>,
dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir
Split the dp core driver from exynos directory to bridge
directory, and rename the core driver to analogix_dp_*,
leave the platform code to analogix_dp-exynos.
Signed-off-by: Yakir Yang <ykk@...k-chips.com>
---
Changes in v4:
- Take Rob suggest, update "analogix,hpd-gpios" to "hpd-gpios" DT propery.
- Take Jingoo suggest, rename "analogix_dp-exynos.c" file name to "exynos_dp.c"
- Take Archit suggest, create a separate folder for analogix code in bridge/
Changes in v3:
- Take Thierry Reding suggest, move exynos's video_timing code
to analogix_dp-exynos platform driver, add get_modes method
to struct analogix_dp_plat_data.
- Take Heiko suggest, rename some "samsung*" dts propery to "analogix*".
Changes in v2:
- Take Jingoo Han suggest, remove new copyright
- Fix compiled failed dut to analogix_dp_device misspell
drivers/gpu/drm/bridge/Kconfig | 2 +
drivers/gpu/drm/bridge/Makefile | 1 +
drivers/gpu/drm/bridge/analogix/Kconfig | 4 +
drivers/gpu/drm/bridge/analogix/Makefile | 1 +
.../analogix/analogix_dp_core.c} | 817 ++++++-------
drivers/gpu/drm/bridge/analogix/analogix_dp_core.h | 283 +++++
drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 1265 ++++++++++++++++++++
.../analogix/analogix_dp_reg.h} | 258 ++--
drivers/gpu/drm/exynos/Kconfig | 3 +-
drivers/gpu/drm/exynos/Makefile | 2 +-
drivers/gpu/drm/exynos/exynos_dp.c | 306 +++++
drivers/gpu/drm/exynos/exynos_dp_core.h | 282 -----
drivers/gpu/drm/exynos/exynos_dp_reg.c | 1259 -------------------
include/drm/bridge/analogix_dp.h | 24 +
14 files changed, 2357 insertions(+), 2150 deletions(-)
create mode 100644 drivers/gpu/drm/bridge/analogix/Kconfig
create mode 100644 drivers/gpu/drm/bridge/analogix/Makefile
rename drivers/gpu/drm/{exynos/exynos_dp_core.c => bridge/analogix/analogix_dp_core.c} (50%)
create mode 100644 drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
create mode 100644 drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
rename drivers/gpu/drm/{exynos/exynos_dp_reg.h => bridge/analogix/analogix_dp_reg.h} (64%)
create mode 100644 drivers/gpu/drm/exynos/exynos_dp.c
delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_core.h
delete mode 100644 drivers/gpu/drm/exynos/exynos_dp_reg.c
create mode 100644 include/drm/bridge/analogix_dp.h
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 2de52a5..7b5b77a 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -29,4 +29,6 @@ config DRM_PARADE_PS8622
---help---
Parade eDP-LVDS bridge chip driver.
+source "drivers/gpu/drm/bridge/analogix/Kconfig"
+
endmenu
diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makefile
index e2eef1c..5366c6b 100644
--- a/drivers/gpu/drm/bridge/Makefile
+++ b/drivers/gpu/drm/bridge/Makefile
@@ -3,3 +3,4 @@ ccflags-y := -Iinclude/drm
obj-$(CONFIG_DRM_DW_HDMI) += dw_hdmi.o
obj-$(CONFIG_DRM_NXP_PTN3460) += nxp-ptn3460.o
obj-$(CONFIG_DRM_PARADE_PS8622) += parade-ps8622.o
+obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix/
diff --git a/drivers/gpu/drm/bridge/analogix/Kconfig b/drivers/gpu/drm/bridge/analogix/Kconfig
new file mode 100644
index 0000000..5ff6551
--- /dev/null
+++ b/drivers/gpu/drm/bridge/analogix/Kconfig
@@ -0,0 +1,4 @@
+config DRM_ANALOGIX_DP
+ tristate
+ depends on DRM
+ select DRM_KMS_HELPER
diff --git a/drivers/gpu/drm/bridge/analogix/Makefile b/drivers/gpu/drm/bridge/analogix/Makefile
new file mode 100644
index 0000000..9107b86
--- /dev/null
+++ b/drivers/gpu/drm/bridge/analogix/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_DRM_ANALOGIX_DP) += analogix_dp_core.o analogix_dp_reg.o
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
similarity index 50%
rename from drivers/gpu/drm/exynos/exynos_dp_core.c
rename to drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
index bed0252..7d62f22 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_core.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c
@@ -1,14 +1,14 @@
/*
- * Samsung SoC DP (Display Port) interface driver.
- *
- * Copyright (C) 2012 Samsung Electronics Co., Ltd.
- * Author: Jingoo Han <jg1.han@...sung.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
+* Analogix DP (Display Port) core interface driver.
+*
+* Copyright (C) 2012 Samsung Electronics Co., Ltd.
+* Author: Jingoo Han <jg1.han@...sung.com>
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms of the GNU General Public License as published by the
+* Free Software Foundation; either version 2 of the License, or (at your
+* option) any later version.
+*/
#include <linux/module.h>
#include <linux/platform_device.h>
@@ -18,12 +18,9 @@
#include <linux/interrupt.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
-#include <linux/of_graph.h>
#include <linux/gpio.h>
#include <linux/component.h>
#include <linux/phy/phy.h>
-#include <video/of_display_timing.h>
-#include <video/of_videomode.h>
#include <drm/drmP.h>
#include <drm/drm_crtc.h>
@@ -31,52 +28,42 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_panel.h>
-#include "exynos_dp_core.h"
-#include "exynos_drm_crtc.h"
+#include <drm/bridge/analogix_dp.h>
-#define ctx_from_connector(c) container_of(c, struct exynos_dp_device, \
- connector)
+#include "analogix_dp_core.h"
-static inline struct exynos_drm_crtc *dp_to_crtc(struct exynos_dp_device *dp)
-{
- return to_exynos_crtc(dp->encoder.crtc);
-}
-
-static inline struct exynos_dp_device *encoder_to_dp(
- struct drm_encoder *e)
-{
- return container_of(e, struct exynos_dp_device, encoder);
-}
+#define connector_to_dp(c) \
+ container_of(c, struct analogix_dp_device, connector)
struct bridge_init {
struct i2c_client *client;
struct device_node *node;
};
-static void exynos_dp_init_dp(struct exynos_dp_device *dp)
+static void analogix_dp_init_dp(struct analogix_dp_device *dp)
{
- exynos_dp_reset(dp);
+ analogix_dp_reset(dp);
- exynos_dp_swreset(dp);
+ analogix_dp_swreset(dp);
- exynos_dp_init_analog_param(dp);
- exynos_dp_init_interrupt(dp);
+ analogix_dp_init_analog_param(dp);
+ analogix_dp_init_interrupt(dp);
/* SW defined function Normal operation */
- exynos_dp_enable_sw_function(dp);
+ analogix_dp_enable_sw_function(dp);
- exynos_dp_config_interrupt(dp);
- exynos_dp_init_analog_func(dp);
+ analogix_dp_config_interrupt(dp);
+ analogix_dp_init_analog_func(dp);
- exynos_dp_init_hpd(dp);
- exynos_dp_init_aux(dp);
+ analogix_dp_init_hpd(dp);
+ analogix_dp_init_aux(dp);
}
-static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
+static int analogix_dp_detect_hpd(struct analogix_dp_device *dp)
{
int timeout_loop = 0;
- while (exynos_dp_get_plug_in_status(dp) != 0) {
+ while (analogix_dp_get_plug_in_status(dp) != 0) {
timeout_loop++;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
dev_err(dp->dev, "failed to get hpd plug status\n");
@@ -88,7 +75,7 @@ static int exynos_dp_detect_hpd(struct exynos_dp_device *dp)
return 0;
}
-static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
+static unsigned char analogix_dp_calc_edid_check_sum(unsigned char *edid_data)
{
int i;
unsigned char sum = 0;
@@ -99,7 +86,7 @@ static unsigned char exynos_dp_calc_edid_check_sum(unsigned char *edid_data)
return sum;
}
-static int exynos_dp_read_edid(struct exynos_dp_device *dp)
+static int analogix_dp_read_edid(struct analogix_dp_device *dp)
{
unsigned char edid[EDID_BLOCK_LENGTH * 2];
unsigned int extend_block = 0;
@@ -114,9 +101,9 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
*/
/* Read Extension Flag, Number of 128-byte EDID extension blocks */
- retval = exynos_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
- EDID_EXTENSION_FLAG,
- &extend_block);
+ retval = analogix_dp_read_byte_from_i2c(dp, I2C_EDID_DEVICE_ADDR,
+ EDID_EXTENSION_FLAG,
+ &extend_block);
if (retval)
return retval;
@@ -124,7 +111,7 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
dev_dbg(dp->dev, "EDID data includes a single extension!\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(
+ retval = analogix_dp_read_bytes_from_i2c(
dp, I2C_EDID_DEVICE_ADDR,
EDID_HEADER_PATTERN,
EDID_BLOCK_LENGTH,
@@ -133,14 +120,14 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
}
- sum = exynos_dp_calc_edid_check_sum(edid);
+ sum = analogix_dp_calc_edid_check_sum(edid);
if (sum != 0) {
dev_err(dp->dev, "EDID bad checksum!\n");
return -EIO;
}
/* Read additional EDID data */
- retval = exynos_dp_read_bytes_from_i2c(
+ retval = analogix_dp_read_bytes_from_i2c(
dp, I2C_EDID_DEVICE_ADDR,
EDID_BLOCK_LENGTH,
EDID_BLOCK_LENGTH,
@@ -149,19 +136,19 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
}
- sum = exynos_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
+ sum = analogix_dp_calc_edid_check_sum(&edid[EDID_BLOCK_LENGTH]);
if (sum != 0) {
dev_err(dp->dev, "EDID bad checksum!\n");
return -EIO;
}
- exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
- &test_vector);
+ analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_EDID_CHECKSUM,
edid[EDID_BLOCK_LENGTH + EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
}
@@ -169,26 +156,26 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
dev_info(dp->dev, "EDID data does not include any extensions.\n");
/* Read EDID data */
- retval = exynos_dp_read_bytes_from_i2c(
+ retval = analogix_dp_read_bytes_from_i2c(
dp, I2C_EDID_DEVICE_ADDR, EDID_HEADER_PATTERN,
EDID_BLOCK_LENGTH, &edid[EDID_HEADER_PATTERN]);
if (retval != 0) {
dev_err(dp->dev, "EDID Read failed!\n");
return -EIO;
}
- sum = exynos_dp_calc_edid_check_sum(edid);
+ sum = analogix_dp_calc_edid_check_sum(edid);
if (sum != 0) {
dev_err(dp->dev, "EDID bad checksum!\n");
return -EIO;
}
- exynos_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
- &test_vector);
+ analogix_dp_read_byte_from_dpcd(dp, DP_TEST_REQUEST,
+ &test_vector);
if (test_vector & DP_TEST_LINK_EDID_READ) {
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_EDID_CHECKSUM,
edid[EDID_CHECKSUM]);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TEST_RESPONSE,
DP_TEST_EDID_CHECKSUM_WRITE);
}
@@ -198,20 +185,20 @@ static int exynos_dp_read_edid(struct exynos_dp_device *dp)
return 0;
}
-static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
+static int analogix_dp_handle_edid(struct analogix_dp_device *dp)
{
u8 buf[12];
int i;
int retval;
/* Read DPCD DP_DPCD_REV~RECEIVE_PORT1_CAP_1 */
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_DPCD_REV, 12, buf);
if (retval)
return retval;
/* Read EDID */
for (i = 0; i < 3; i++) {
- retval = exynos_dp_read_edid(dp);
+ retval = analogix_dp_read_edid(dp);
if (!retval)
break;
}
@@ -219,72 +206,74 @@ static int exynos_dp_handle_edid(struct exynos_dp_device *dp)
return retval;
}
-static void exynos_dp_enable_rx_to_enhanced_mode(struct exynos_dp_device *dp,
- bool enable)
+static void
+analogix_dp_enable_rx_to_enhanced_mode(struct analogix_dp_device *dp,
+ bool enable)
{
u8 data;
- exynos_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_LANE_COUNT_SET, &data);
if (enable)
- exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DP_LANE_COUNT_ENHANCED_FRAME_EN |
- DPCD_LANE_COUNT_SET(data));
+ analogix_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
+ DP_LANE_COUNT_ENHANCED_FRAME_EN |
+ DPCD_LANE_COUNT_SET(data));
else
- exynos_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
- DPCD_LANE_COUNT_SET(data));
+ analogix_dp_write_byte_to_dpcd(dp, DP_LANE_COUNT_SET,
+ DPCD_LANE_COUNT_SET(data));
}
-static int exynos_dp_is_enhanced_mode_available(struct exynos_dp_device *dp)
+static int analogix_dp_is_enhanced_mode_available(struct analogix_dp_device *dp)
{
u8 data;
int retval;
- exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
retval = DPCD_ENHANCED_FRAME_CAP(data);
return retval;
}
-static void exynos_dp_set_enhanced_mode(struct exynos_dp_device *dp)
+static void analogix_dp_set_enhanced_mode(struct analogix_dp_device *dp)
{
u8 data;
- data = exynos_dp_is_enhanced_mode_available(dp);
- exynos_dp_enable_rx_to_enhanced_mode(dp, data);
- exynos_dp_enable_enhanced_mode(dp, data);
+ data = analogix_dp_is_enhanced_mode_available(dp);
+ analogix_dp_enable_rx_to_enhanced_mode(dp, data);
+ analogix_dp_enable_enhanced_mode(dp, data);
}
-static void exynos_dp_training_pattern_dis(struct exynos_dp_device *dp)
+static void analogix_dp_training_pattern_dis(struct analogix_dp_device *dp)
{
- exynos_dp_set_training_pattern(dp, DP_NONE);
+ analogix_dp_set_training_pattern(dp, DP_NONE);
- exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
- DP_TRAINING_PATTERN_DISABLE);
+ analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_TRAINING_PATTERN_DISABLE);
}
-static void exynos_dp_set_lane_lane_pre_emphasis(struct exynos_dp_device *dp,
- int pre_emphasis, int lane)
+static void
+analogix_dp_set_lane_lane_pre_emphasis(struct analogix_dp_device *dp,
+ int pre_emphasis, int lane)
{
switch (lane) {
case 0:
- exynos_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane0_pre_emphasis(dp, pre_emphasis);
break;
case 1:
- exynos_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane1_pre_emphasis(dp, pre_emphasis);
break;
case 2:
- exynos_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane2_pre_emphasis(dp, pre_emphasis);
break;
case 3:
- exynos_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
+ analogix_dp_set_lane3_pre_emphasis(dp, pre_emphasis);
break;
}
}
-static int exynos_dp_link_start(struct exynos_dp_device *dp)
+static int analogix_dp_link_start(struct analogix_dp_device *dp)
{
u8 buf[4];
int lane, lane_count, pll_tries, retval;
@@ -298,24 +287,24 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
dp->link_train.cr_loop[lane] = 0;
/* Set link rate and count as you want to establish*/
- exynos_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
- exynos_dp_set_lane_count(dp, dp->link_train.lane_count);
+ analogix_dp_set_link_bandwidth(dp, dp->link_train.link_rate);
+ analogix_dp_set_lane_count(dp, dp->link_train.lane_count);
/* Setup RX configuration */
buf[0] = dp->link_train.link_rate;
buf[1] = dp->link_train.lane_count;
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
+ retval = analogix_dp_write_bytes_to_dpcd(dp, DP_LINK_BW_SET, 2, buf);
if (retval)
return retval;
/* Set TX pre-emphasis to minimum */
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
- lane);
+ analogix_dp_set_lane_lane_pre_emphasis(dp, PRE_EMPHASIS_LEVEL_0,
+ lane);
/* Wait for PLL lock */
pll_tries = 0;
- while (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ while (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
if (pll_tries == DP_TIMEOUT_LOOP_COUNT) {
dev_err(dp->dev, "Wait for PLL lock timed out\n");
return -ETIMEDOUT;
@@ -326,12 +315,12 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
}
/* Set training pattern 1 */
- exynos_dp_set_training_pattern(dp, TRAINING_PTN1);
+ analogix_dp_set_training_pattern(dp, TRAINING_PTN1);
/* Set RX training pattern */
- retval = exynos_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
- DP_LINK_SCRAMBLING_DISABLE |
- DP_TRAINING_PATTERN_1);
+ retval = analogix_dp_write_byte_to_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ DP_LINK_SCRAMBLING_DISABLE |
+ DP_TRAINING_PATTERN_1);
if (retval)
return retval;
@@ -339,13 +328,13 @@ static int exynos_dp_link_start(struct exynos_dp_device *dp)
buf[lane] = DP_TRAIN_PRE_EMPH_LEVEL_0 |
DP_TRAIN_VOLTAGE_SWING_LEVEL_0;
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count, buf);
+ retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
+ lane_count, buf);
return retval;
}
-static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
+static unsigned char analogix_dp_get_lane_status(u8 link_status[2], int lane)
{
int shift = (lane & 1) * 4;
u8 link_value = link_status[lane >> 1];
@@ -353,21 +342,21 @@ static unsigned char exynos_dp_get_lane_status(u8 link_status[2], int lane)
return (link_value >> shift) & 0xf;
}
-static int exynos_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
+static int analogix_dp_clock_recovery_ok(u8 link_status[2], int lane_count)
{
int lane;
u8 lane_status;
for (lane = 0; lane < lane_count; lane++) {
- lane_status = exynos_dp_get_lane_status(link_status, lane);
+ lane_status = analogix_dp_get_lane_status(link_status, lane);
if ((lane_status & DP_LANE_CR_DONE) == 0)
return -EINVAL;
}
return 0;
}
-static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
- int lane_count)
+static int analogix_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
+ int lane_count)
{
int lane;
u8 lane_status;
@@ -376,7 +365,7 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
return -EINVAL;
for (lane = 0; lane < lane_count; lane++) {
- lane_status = exynos_dp_get_lane_status(link_status, lane);
+ lane_status = analogix_dp_get_lane_status(link_status, lane);
lane_status &= DP_CHANNEL_EQ_BITS;
if (lane_status != DP_CHANNEL_EQ_BITS)
return -EINVAL;
@@ -385,8 +374,8 @@ static int exynos_dp_channel_eq_ok(u8 link_status[2], u8 link_align,
return 0;
}
-static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
- int lane)
+static unsigned char
+analogix_dp_get_adjust_request_voltage(u8 adjust_request[2], int lane)
{
int shift = (lane & 1) * 4;
u8 link_value = adjust_request[lane >> 1];
@@ -394,7 +383,7 @@ static unsigned char exynos_dp_get_adjust_request_voltage(u8 adjust_request[2],
return (link_value >> shift) & 0x3;
}
-static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
+static unsigned char analogix_dp_get_adjust_request_pre_emphasis(
u8 adjust_request[2],
int lane)
{
@@ -404,44 +393,44 @@ static unsigned char exynos_dp_get_adjust_request_pre_emphasis(
return ((link_value >> shift) & 0xc) >> 2;
}
-static void exynos_dp_set_lane_link_training(struct exynos_dp_device *dp,
- u8 training_lane_set, int lane)
+static void analogix_dp_set_lane_link_training(struct analogix_dp_device *dp,
+ u8 training_lane_set, int lane)
{
switch (lane) {
case 0:
- exynos_dp_set_lane0_link_training(dp, training_lane_set);
+ analogix_dp_set_lane0_link_training(dp, training_lane_set);
break;
case 1:
- exynos_dp_set_lane1_link_training(dp, training_lane_set);
+ analogix_dp_set_lane1_link_training(dp, training_lane_set);
break;
case 2:
- exynos_dp_set_lane2_link_training(dp, training_lane_set);
+ analogix_dp_set_lane2_link_training(dp, training_lane_set);
break;
case 3:
- exynos_dp_set_lane3_link_training(dp, training_lane_set);
+ analogix_dp_set_lane3_link_training(dp, training_lane_set);
break;
}
}
static unsigned int
-exynos_dp_get_lane_link_training(struct exynos_dp_device *dp, int lane)
+analogix_dp_get_lane_link_training(struct analogix_dp_device *dp, int lane)
{
u32 reg;
switch (lane) {
case 0:
- reg = exynos_dp_get_lane0_link_training(dp);
+ reg = analogix_dp_get_lane0_link_training(dp);
break;
case 1:
- reg = exynos_dp_get_lane1_link_training(dp);
+ reg = analogix_dp_get_lane1_link_training(dp);
break;
case 2:
- reg = exynos_dp_get_lane2_link_training(dp);
+ reg = analogix_dp_get_lane2_link_training(dp);
break;
case 3:
- reg = exynos_dp_get_lane3_link_training(dp);
+ reg = analogix_dp_get_lane3_link_training(dp);
break;
default:
WARN_ON(1);
@@ -451,25 +440,25 @@ exynos_dp_get_lane_link_training(struct exynos_dp_device *dp, int lane)
return reg;
}
-static void exynos_dp_reduce_link_rate(struct exynos_dp_device *dp)
+static void analogix_dp_reduce_link_rate(struct analogix_dp_device *dp)
{
- exynos_dp_training_pattern_dis(dp);
- exynos_dp_set_enhanced_mode(dp);
+ analogix_dp_training_pattern_dis(dp);
+ analogix_dp_set_enhanced_mode(dp);
dp->link_train.lt_state = FAILED;
}
-static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
- u8 adjust_request[2])
+static void analogix_dp_get_adjust_training_lane(struct analogix_dp_device *dp,
+ u8 adjust_request[2])
{
int lane, lane_count;
u8 voltage_swing, pre_emphasis, training_lane;
lane_count = dp->link_train.lane_count;
for (lane = 0; lane < lane_count; lane++) {
- voltage_swing = exynos_dp_get_adjust_request_voltage(
+ voltage_swing = analogix_dp_get_adjust_request_voltage(
adjust_request, lane);
- pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
+ pre_emphasis = analogix_dp_get_adjust_request_pre_emphasis(
adjust_request, lane);
training_lane = DPCD_VOLTAGE_SWING_SET(voltage_swing) |
DPCD_PRE_EMPHASIS_SET(pre_emphasis);
@@ -483,7 +472,7 @@ static void exynos_dp_get_adjust_training_lane(struct exynos_dp_device *dp,
}
}
-static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
+static int analogix_dp_process_clock_recovery(struct analogix_dp_device *dp)
{
int lane, lane_count, retval;
u8 voltage_swing, pre_emphasis, training_lane;
@@ -493,21 +482,22 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
- 2, link_status);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
- 2, adjust_request);
+ retval = analogix_dp_read_bytes_from_dpcd(
+ dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
- if (exynos_dp_clock_recovery_ok(link_status, lane_count) == 0) {
+ if (analogix_dp_clock_recovery_ok(link_status, lane_count) == 0) {
/* set training pattern 2 for EQ */
- exynos_dp_set_training_pattern(dp, TRAINING_PTN2);
+ analogix_dp_set_training_pattern(dp, TRAINING_PTN2);
- retval = exynos_dp_write_byte_to_dpcd(
+ retval = analogix_dp_write_byte_to_dpcd(
dp, DP_TRAINING_PATTERN_SET,
DP_LINK_SCRAMBLING_DISABLE |
DP_TRAINING_PATTERN_2);
@@ -518,11 +508,11 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
dp->link_train.lt_state = EQUALIZER_TRAINING;
} else {
for (lane = 0; lane < lane_count; lane++) {
- training_lane = exynos_dp_get_lane_link_training(
+ training_lane = analogix_dp_get_lane_link_training(
dp, lane);
- voltage_swing = exynos_dp_get_adjust_request_voltage(
+ voltage_swing = analogix_dp_get_adjust_request_voltage(
adjust_request, lane);
- pre_emphasis = exynos_dp_get_adjust_request_pre_emphasis(
+ pre_emphasis = analogix_dp_get_adjust_request_pre_emphasis(
adjust_request, lane);
if (DPCD_VOLTAGE_SWING_GET(training_lane) ==
@@ -537,19 +527,19 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
dev_err(dp->dev, "CR Max reached (%d,%d,%d)\n",
dp->link_train.cr_loop[lane],
voltage_swing, pre_emphasis);
- exynos_dp_reduce_link_rate(dp);
+ analogix_dp_reduce_link_rate(dp);
return -EIO;
}
}
}
- exynos_dp_get_adjust_training_lane(dp, adjust_request);
+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(
+ analogix_dp_set_lane_link_training(
dp, dp->link_train.training_lane[lane], lane);
- retval = exynos_dp_write_bytes_to_dpcd(
+ retval = analogix_dp_write_bytes_to_dpcd(
dp, DP_TRAINING_LANE0_SET, lane_count,
dp->link_train.training_lane);
if (retval)
@@ -558,7 +548,7 @@ static int exynos_dp_process_clock_recovery(struct exynos_dp_device *dp)
return retval;
}
-static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
+static int analogix_dp_process_equalizer_training(struct analogix_dp_device *dp)
{
int lane, lane_count, retval;
u32 reg;
@@ -568,46 +558,46 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
lane_count = dp->link_train.lane_count;
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
- 2, link_status);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_LANE0_1_STATUS,
+ 2, link_status);
if (retval)
return retval;
- if (exynos_dp_clock_recovery_ok(link_status, lane_count)) {
- exynos_dp_reduce_link_rate(dp);
+ if (analogix_dp_clock_recovery_ok(link_status, lane_count)) {
+ analogix_dp_reduce_link_rate(dp);
return -EIO;
}
- retval = exynos_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
- 2, adjust_request);
+ retval = analogix_dp_read_bytes_from_dpcd(dp, DP_ADJUST_REQUEST_LANE0_1,
+ 2, adjust_request);
if (retval)
return retval;
- retval = exynos_dp_read_byte_from_dpcd(dp, DP_LANE_ALIGN_STATUS_UPDATED,
- &link_align);
+ retval = analogix_dp_read_byte_from_dpcd(
+ dp, DP_LANE_ALIGN_STATUS_UPDATED, &link_align);
if (retval)
return retval;
- exynos_dp_get_adjust_training_lane(dp, adjust_request);
+ analogix_dp_get_adjust_training_lane(dp, adjust_request);
- if (!exynos_dp_channel_eq_ok(link_status, link_align, lane_count)) {
+ if (!analogix_dp_channel_eq_ok(link_status, link_align, lane_count)) {
/* traing pattern Set to Normal */
- exynos_dp_training_pattern_dis(dp);
+ analogix_dp_training_pattern_dis(dp);
dev_info(dp->dev, "Link Training success!\n");
- exynos_dp_get_link_bandwidth(dp, ®);
+ analogix_dp_get_link_bandwidth(dp, ®);
dp->link_train.link_rate = reg;
dev_dbg(dp->dev, "final bandwidth = %.2x\n",
dp->link_train.link_rate);
- exynos_dp_get_lane_count(dp, ®);
+ analogix_dp_get_lane_count(dp, ®);
dp->link_train.lane_count = reg;
dev_dbg(dp->dev, "final lane count = %.2x\n",
dp->link_train.lane_count);
/* set enhanced mode if available */
- exynos_dp_set_enhanced_mode(dp);
+ analogix_dp_set_enhanced_mode(dp);
dp->link_train.lt_state = FINISHED;
return 0;
@@ -618,23 +608,23 @@ static int exynos_dp_process_equalizer_training(struct exynos_dp_device *dp)
if (dp->link_train.eq_loop > MAX_EQ_LOOP) {
dev_err(dp->dev, "EQ Max loop\n");
- exynos_dp_reduce_link_rate(dp);
+ analogix_dp_reduce_link_rate(dp);
return -EIO;
}
for (lane = 0; lane < lane_count; lane++)
- exynos_dp_set_lane_link_training(
+ analogix_dp_set_lane_link_training(
dp, dp->link_train.training_lane[lane], lane);
- retval = exynos_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
- lane_count,
- dp->link_train.training_lane);
+ retval = analogix_dp_write_bytes_to_dpcd(dp, DP_TRAINING_LANE0_SET,
+ lane_count,
+ dp->link_train.training_lane);
return retval;
}
-static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
- u8 *bandwidth)
+static void analogix_dp_get_max_rx_bandwidth(struct analogix_dp_device *dp,
+ u8 *bandwidth)
{
u8 data;
@@ -642,12 +632,12 @@ static void exynos_dp_get_max_rx_bandwidth(struct exynos_dp_device *dp,
* For DP rev.1.1, Maximum link rate of Main Link lanes
* 0x06 = 1.62 Gbps, 0x0a = 2.7 Gbps
*/
- exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LINK_RATE, &data);
*bandwidth = data;
}
-static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
- u8 *lane_count)
+static void analogix_dp_get_max_rx_lane_count(struct analogix_dp_device *dp,
+ u8 *lane_count)
{
u8 data;
@@ -655,23 +645,23 @@ static void exynos_dp_get_max_rx_lane_count(struct exynos_dp_device *dp,
* For DP rev.1.1, Maximum number of Main Link lanes
* 0x01 = 1 lane, 0x02 = 2 lanes, 0x04 = 4 lanes
*/
- exynos_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
+ analogix_dp_read_byte_from_dpcd(dp, DP_MAX_LANE_COUNT, &data);
*lane_count = DPCD_MAX_LANE_COUNT(data);
}
-static void exynos_dp_init_training(struct exynos_dp_device *dp,
- enum link_lane_count_type max_lane,
- enum link_rate_type max_rate)
+static void analogix_dp_init_training(struct analogix_dp_device *dp,
+ enum link_lane_count_type max_lane,
+ enum link_rate_type max_rate)
{
/*
* MACRO_RST must be applied after the PLL_LOCK to avoid
* the DP inter pair skew issue for at least 10 us
*/
- exynos_dp_reset_macro(dp);
+ analogix_dp_reset_macro(dp);
/* Initialize by reading RX's DPCD */
- exynos_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
- exynos_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
+ analogix_dp_get_max_rx_bandwidth(dp, &dp->link_train.link_rate);
+ analogix_dp_get_max_rx_lane_count(dp, &dp->link_train.lane_count);
if ((dp->link_train.link_rate != LINK_RATE_1_62GBPS) &&
(dp->link_train.link_rate != LINK_RATE_2_70GBPS)) {
@@ -693,10 +683,10 @@ static void exynos_dp_init_training(struct exynos_dp_device *dp,
dp->link_train.link_rate = max_rate;
/* All DP analog module power up */
- exynos_dp_set_analog_power_down(dp, POWER_ALL, 0);
+ analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
}
-static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
+static int analogix_dp_sw_link_training(struct analogix_dp_device *dp)
{
int retval = 0, training_finished = 0;
@@ -706,17 +696,17 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
while (!retval && !training_finished) {
switch (dp->link_train.lt_state) {
case START:
- retval = exynos_dp_link_start(dp);
+ retval = analogix_dp_link_start(dp);
if (retval)
dev_err(dp->dev, "LT link start failed!\n");
break;
case CLOCK_RECOVERY:
- retval = exynos_dp_process_clock_recovery(dp);
+ retval = analogix_dp_process_clock_recovery(dp);
if (retval)
dev_err(dp->dev, "LT CR failed!\n");
break;
case EQUALIZER_TRAINING:
- retval = exynos_dp_process_equalizer_training(dp);
+ retval = analogix_dp_process_equalizer_training(dp);
if (retval)
dev_err(dp->dev, "LT EQ failed!\n");
break;
@@ -733,15 +723,15 @@ static int exynos_dp_sw_link_training(struct exynos_dp_device *dp)
return retval;
}
-static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
- u32 count, u32 bwtype)
+static int analogix_dp_set_link_train(struct analogix_dp_device *dp,
+ u32 count, u32 bwtype)
{
int i;
int retval;
for (i = 0; i < DP_TIMEOUT_LOOP_COUNT; i++) {
- exynos_dp_init_training(dp, count, bwtype);
- retval = exynos_dp_sw_link_training(dp);
+ analogix_dp_init_training(dp, count, bwtype);
+ retval = analogix_dp_sw_link_training(dp);
if (retval == 0)
break;
@@ -751,24 +741,24 @@ static int exynos_dp_set_link_train(struct exynos_dp_device *dp,
return retval;
}
-static int exynos_dp_config_video(struct exynos_dp_device *dp)
+static int analogix_dp_config_video(struct analogix_dp_device *dp)
{
int retval = 0;
int timeout_loop = 0;
int done_count = 0;
- exynos_dp_config_video_slave_mode(dp);
+ analogix_dp_config_video_slave_mode(dp);
- exynos_dp_set_video_color_format(dp);
+ analogix_dp_set_video_color_format(dp);
- if (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ if (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
dev_err(dp->dev, "PLL is not locked yet.\n");
return -EINVAL;
}
for (;;) {
timeout_loop++;
- if (exynos_dp_is_slave_video_stream_clock_on(dp) == 0)
+ if (analogix_dp_is_slave_video_stream_clock_on(dp) == 0)
break;
if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
dev_err(dp->dev, "Timeout of video streamclk ok\n");
@@ -779,22 +769,22 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp)
}
/* Set to use the register calculated M/N video */
- exynos_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
+ analogix_dp_set_video_cr_mn(dp, CALCULATED_M, 0, 0);
/* For video bist, Video timing must be generated by register */
- exynos_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
+ analogix_dp_set_video_timing_mode(dp, VIDEO_TIMING_FROM_CAPTURE);
/* Disable video mute */
- exynos_dp_enable_video_mute(dp, 0);
+ analogix_dp_enable_video_mute(dp, 0);
/* Configure video slave mode */
- exynos_dp_enable_video_master(dp, 0);
+ analogix_dp_enable_video_master(dp, 0);
timeout_loop = 0;
for (;;) {
timeout_loop++;
- if (exynos_dp_is_video_stream_on(dp) == 0) {
+ if (analogix_dp_is_video_stream_on(dp) == 0) {
done_count++;
if (done_count > 10)
break;
@@ -815,45 +805,46 @@ static int exynos_dp_config_video(struct exynos_dp_device *dp)
return retval;
}
-static void exynos_dp_enable_scramble(struct exynos_dp_device *dp, bool enable)
+static void analogix_dp_enable_scramble(struct analogix_dp_device *dp,
+ bool enable)
{
u8 data;
if (enable) {
- exynos_dp_enable_scrambling(dp);
+ analogix_dp_enable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TRAINING_PATTERN_SET,
(u8)(data & ~DP_LINK_SCRAMBLING_DISABLE));
} else {
- exynos_dp_disable_scrambling(dp);
+ analogix_dp_disable_scrambling(dp);
- exynos_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
- &data);
- exynos_dp_write_byte_to_dpcd(
+ analogix_dp_read_byte_from_dpcd(dp, DP_TRAINING_PATTERN_SET,
+ &data);
+ analogix_dp_write_byte_to_dpcd(
dp, DP_TRAINING_PATTERN_SET,
(u8)(data | DP_LINK_SCRAMBLING_DISABLE));
}
}
-static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
+static irqreturn_t analogix_dp_irq_handler(int irq, void *arg)
{
- struct exynos_dp_device *dp = arg;
+ struct analogix_dp_device *dp = arg;
enum dp_irq_type irq_type;
- irq_type = exynos_dp_get_irq_type(dp);
+ irq_type = analogix_dp_get_irq_type(dp);
switch (irq_type) {
case DP_IRQ_TYPE_HP_CABLE_IN:
dev_dbg(dp->dev, "Received irq - cable in\n");
schedule_work(&dp->hotplug_work);
- exynos_dp_clear_hotplug_interrupts(dp);
+ analogix_dp_clear_hotplug_interrupts(dp);
break;
case DP_IRQ_TYPE_HP_CABLE_OUT:
dev_dbg(dp->dev, "Received irq - cable out\n");
- exynos_dp_clear_hotplug_interrupts(dp);
+ analogix_dp_clear_hotplug_interrupts(dp);
break;
case DP_IRQ_TYPE_HP_CHANGE:
/*
@@ -862,7 +853,7 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
* only handle cable changes.
*/
dev_dbg(dp->dev, "Received irq - hotplug change; ignoring.\n");
- exynos_dp_clear_hotplug_interrupts(dp);
+ analogix_dp_clear_hotplug_interrupts(dp);
break;
default:
dev_err(dp->dev, "Received irq - unknown type!\n");
@@ -871,218 +862,204 @@ static irqreturn_t exynos_dp_irq_handler(int irq, void *arg)
return IRQ_HANDLED;
}
-static void exynos_dp_hotplug(struct work_struct *work)
+static void analogix_dp_hotplug(struct work_struct *work)
{
- struct exynos_dp_device *dp;
+ struct analogix_dp_device *dp;
- dp = container_of(work, struct exynos_dp_device, hotplug_work);
+ dp = container_of(work, struct analogix_dp_device, hotplug_work);
if (dp->drm_dev)
drm_helper_hpd_irq_event(dp->drm_dev);
}
-static void exynos_dp_commit(struct drm_encoder *encoder)
+static void analogix_dp_commit(struct analogix_dp_device *dp)
{
- struct exynos_dp_device *dp = encoder_to_dp(encoder);
int ret;
/* Keep the panel disabled while we configure video */
- if (dp->panel) {
- if (drm_panel_disable(dp->panel))
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_disable(dp->plat_data->panel))
DRM_ERROR("failed to disable the panel\n");
}
- ret = exynos_dp_detect_hpd(dp);
+ ret = analogix_dp_detect_hpd(dp);
if (ret) {
/* Cable has been disconnected, we're done */
return;
}
- ret = exynos_dp_handle_edid(dp);
+ ret = analogix_dp_handle_edid(dp);
if (ret) {
dev_err(dp->dev, "unable to handle edid\n");
return;
}
- ret = exynos_dp_set_link_train(dp, dp->video_info->lane_count,
- dp->video_info->link_rate);
+ ret = analogix_dp_set_link_train(dp, dp->video_info->lane_count,
+ dp->video_info->link_rate);
if (ret) {
dev_err(dp->dev, "unable to do link train\n");
return;
}
- exynos_dp_enable_scramble(dp, 1);
- exynos_dp_enable_rx_to_enhanced_mode(dp, 1);
- exynos_dp_enable_enhanced_mode(dp, 1);
+ analogix_dp_enable_scramble(dp, 1);
+ analogix_dp_enable_rx_to_enhanced_mode(dp, 1);
+ analogix_dp_enable_enhanced_mode(dp, 1);
- exynos_dp_set_lane_count(dp, dp->video_info->lane_count);
- exynos_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
+ analogix_dp_set_lane_count(dp, dp->video_info->lane_count);
+ analogix_dp_set_link_bandwidth(dp, dp->video_info->link_rate);
- exynos_dp_init_video(dp);
- ret = exynos_dp_config_video(dp);
+ analogix_dp_init_video(dp);
+ ret = analogix_dp_config_video(dp);
if (ret)
dev_err(dp->dev, "unable to config video\n");
/* Safe to enable the panel now */
- if (dp->panel) {
- if (drm_panel_enable(dp->panel))
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_enable(dp->plat_data->panel))
DRM_ERROR("failed to enable the panel\n");
}
/* Enable video */
- exynos_dp_start_video(dp);
+ analogix_dp_start_video(dp);
}
static enum drm_connector_status
-exynos_dp_detect(struct drm_connector *connector, bool force)
+analogix_dp_detect(struct drm_connector *connector, bool force)
{
return connector_status_connected;
}
-static void exynos_dp_connector_destroy(struct drm_connector *connector)
+static void analogix_dp_connector_destroy(struct drm_connector *connector)
{
drm_connector_unregister(connector);
drm_connector_cleanup(connector);
}
-static struct drm_connector_funcs exynos_dp_connector_funcs = {
+static struct drm_connector_funcs analogix_dp_connector_funcs = {
.dpms = drm_atomic_helper_connector_dpms,
.fill_modes = drm_helper_probe_single_connector_modes,
- .detect = exynos_dp_detect,
- .destroy = exynos_dp_connector_destroy,
+ .detect = analogix_dp_detect,
+ .destroy = analogix_dp_connector_destroy,
.reset = drm_atomic_helper_connector_reset,
.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};
-static int exynos_dp_get_modes(struct drm_connector *connector)
+static int analogix_dp_get_modes(struct drm_connector *connector)
{
- struct exynos_dp_device *dp = ctx_from_connector(connector);
- struct drm_display_mode *mode;
-
- if (dp->panel)
- return drm_panel_get_modes(dp->panel);
+ struct analogix_dp_device *dp = connector_to_dp(connector);
+ struct analogix_dp_plat_data *plat_data = dp->plat_data;
+ int num_modes = 0;
- mode = drm_mode_create(connector->dev);
- if (!mode) {
- DRM_ERROR("failed to create a new display mode.\n");
- return 0;
- }
-
- drm_display_mode_from_videomode(&dp->priv.vm, mode);
- mode->width_mm = dp->priv.width_mm;
- mode->height_mm = dp->priv.height_mm;
- connector->display_info.width_mm = mode->width_mm;
- connector->display_info.height_mm = mode->height_mm;
+ if (plat_data && plat_data->panel)
+ num_modes += drm_panel_get_modes(plat_data->panel);
- mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
- drm_mode_set_name(mode);
- drm_mode_probed_add(connector, mode);
+ if (plat_data && plat_data->get_modes)
+ num_modes += plat_data->get_modes(plat_data, connector);
- return 1;
+ return num_modes;
}
static struct drm_encoder *
-exynos_dp_best_encoder(struct drm_connector *connector)
+analogix_dp_best_encoder(struct drm_connector *connector)
{
- struct exynos_dp_device *dp = ctx_from_connector(connector);
+ struct analogix_dp_device *dp = connector_to_dp(connector);
- return &dp->encoder;
+ return dp->encoder;
}
-static struct drm_connector_helper_funcs exynos_dp_connector_helper_funcs = {
- .get_modes = exynos_dp_get_modes,
- .best_encoder = exynos_dp_best_encoder,
+static struct drm_connector_helper_funcs analogix_dp_connector_helper_funcs = {
+ .get_modes = analogix_dp_get_modes,
+ .best_encoder = analogix_dp_best_encoder,
};
-/* returns the number of bridges attached */
-static int exynos_drm_attach_lcd_bridge(struct exynos_dp_device *dp,
- struct drm_encoder *encoder)
-{
- int ret;
-
- encoder->bridge->next = dp->ptn_bridge;
- dp->ptn_bridge->encoder = encoder;
- ret = drm_bridge_attach(encoder->dev, dp->ptn_bridge);
- if (ret) {
- DRM_ERROR("Failed to attach bridge to drm\n");
- return ret;
- }
-
- return 0;
-}
-
-static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
+static int analogix_dp_bridge_attach(struct drm_bridge *bridge)
{
- struct exynos_dp_device *dp = bridge->driver_private;
- struct drm_encoder *encoder = &dp->encoder;
+ struct analogix_dp_device *dp = bridge->driver_private;
+ struct drm_encoder *encoder = dp->encoder;
struct drm_connector *connector = &dp->connector;
int ret;
- /* Pre-empt DP connector creation if there's a bridge */
- if (dp->ptn_bridge) {
- ret = exynos_drm_attach_lcd_bridge(dp, encoder);
- if (!ret)
- return 0;
+ if (!bridge->encoder) {
+ DRM_ERROR("Parent encoder object not found");
+ return -ENODEV;
}
+ encoder->bridge = bridge;
+
connector->polled = DRM_CONNECTOR_POLL_HPD;
ret = drm_connector_init(dp->drm_dev, connector,
- &exynos_dp_connector_funcs,
+ &analogix_dp_connector_funcs,
DRM_MODE_CONNECTOR_eDP);
if (ret) {
DRM_ERROR("Failed to initialize connector with drm\n");
return ret;
}
- drm_connector_helper_add(connector, &exynos_dp_connector_helper_funcs);
+ drm_connector_helper_add(connector,
+ &analogix_dp_connector_helper_funcs);
drm_connector_register(connector);
drm_mode_connector_attach_encoder(connector, encoder);
- if (dp->panel)
- ret = drm_panel_attach(dp->panel, &dp->connector);
+ if (dp->plat_data && dp->plat_data->panel) {
+ ret = drm_panel_attach(dp->plat_data->panel, &dp->connector);
+ if (ret) {
+ DRM_ERROR("Failed to attach panel\n");
+ return ret;
+ }
+ }
+
+ /*
+ * This should be the end of attach function, caused
+ * we should ensure dp bridge could attach first.
+ */
+ if (dp->plat_data && dp->plat_data->attach) {
+ ret = dp->plat_data->attach(dp->plat_data, bridge);
+ if (ret) {
+ DRM_ERROR("Failed at platform attch func\n");
+ return ret;
+ }
+ }
- return ret;
+ return 0;
}
-static void exynos_dp_bridge_enable(struct drm_bridge *bridge)
+static void analogix_dp_bridge_enable(struct drm_bridge *bridge)
{
- struct exynos_dp_device *dp = bridge->driver_private;
- struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
+ struct analogix_dp_device *dp = bridge->driver_private;
if (dp->dpms_mode == DRM_MODE_DPMS_ON)
return;
- if (dp->panel) {
- if (drm_panel_prepare(dp->panel)) {
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_prepare(dp->plat_data->panel)) {
DRM_ERROR("failed to setup the panel\n");
return;
}
}
- if (crtc->ops->clock_enable)
- crtc->ops->clock_enable(dp_to_crtc(dp), true);
+ if (dp->plat_data && dp->plat_data->power_on)
+ dp->plat_data->power_on(dp->plat_data);
clk_prepare_enable(dp->clock);
phy_power_on(dp->phy);
- exynos_dp_init_dp(dp);
+ analogix_dp_init_dp(dp);
enable_irq(dp->irq);
- exynos_dp_commit(&dp->encoder);
+ analogix_dp_commit(dp);
dp->dpms_mode = DRM_MODE_DPMS_ON;
}
-static void exynos_dp_bridge_disable(struct drm_bridge *bridge)
+static void analogix_dp_bridge_disable(struct drm_bridge *bridge)
{
- struct exynos_dp_device *dp = bridge->driver_private;
- struct exynos_drm_crtc *crtc = dp_to_crtc(dp);
+ struct analogix_dp_device *dp = bridge->driver_private;
if (dp->dpms_mode != DRM_MODE_DPMS_ON)
return;
- if (dp->panel) {
- if (drm_panel_disable(dp->panel)) {
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_disable(dp->plat_data->panel)) {
DRM_ERROR("failed to disable the panel\n");
return;
}
@@ -1093,34 +1070,33 @@ static void exynos_dp_bridge_disable(struct drm_bridge *bridge)
phy_power_off(dp->phy);
clk_disable_unprepare(dp->clock);
- if (crtc->ops->clock_enable)
- crtc->ops->clock_enable(dp_to_crtc(dp), false);
+ if (dp->plat_data && dp->plat_data->power_off)
+ dp->plat_data->power_off(dp->plat_data);
- if (dp->panel) {
- if (drm_panel_unprepare(dp->panel))
+ if (dp->plat_data && dp->plat_data->panel) {
+ if (drm_panel_unprepare(dp->plat_data->panel))
DRM_ERROR("failed to turnoff the panel\n");
}
dp->dpms_mode = DRM_MODE_DPMS_OFF;
}
-static void exynos_dp_bridge_nop(struct drm_bridge *bridge)
+static void analogix_dp_bridge_nop(struct drm_bridge *bridge)
{
/* do nothing */
}
-static const struct drm_bridge_funcs exynos_dp_bridge_funcs = {
- .enable = exynos_dp_bridge_enable,
- .disable = exynos_dp_bridge_disable,
- .pre_enable = exynos_dp_bridge_nop,
- .post_disable = exynos_dp_bridge_nop,
- .attach = exynos_dp_bridge_attach,
+static const struct drm_bridge_funcs analogix_dp_bridge_funcs = {
+ .enable = analogix_dp_bridge_enable,
+ .disable = analogix_dp_bridge_disable,
+ .pre_enable = analogix_dp_bridge_nop,
+ .post_disable = analogix_dp_bridge_nop,
+ .attach = analogix_dp_bridge_attach,
};
-static int exynos_dp_create_connector(struct drm_encoder *encoder)
+static int analogix_dp_create_bridge(struct drm_device *drm_dev,
+ struct analogix_dp_device *dp)
{
- struct exynos_dp_device *dp = encoder_to_dp(encoder);
- struct drm_device *drm_dev = dp->drm_dev;
struct drm_bridge *bridge;
int ret;
@@ -1133,8 +1109,8 @@ static int exynos_dp_create_connector(struct drm_encoder *encoder)
dp->bridge = bridge;
bridge->driver_private = dp;
- bridge->encoder = encoder;
- bridge->funcs = &exynos_dp_bridge_funcs;
+ bridge->encoder = dp->encoder;
+ bridge->funcs = &analogix_dp_bridge_funcs;
ret = drm_bridge_attach(drm_dev, bridge);
if (ret) {
@@ -1145,39 +1121,7 @@ static int exynos_dp_create_connector(struct drm_encoder *encoder)
return 0;
}
-static bool exynos_dp_mode_fixup(struct drm_encoder *encoder,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- return true;
-}
-
-static void exynos_dp_mode_set(struct drm_encoder *encoder,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
-}
-
-static void exynos_dp_enable(struct drm_encoder *encoder)
-{
-}
-
-static void exynos_dp_disable(struct drm_encoder *encoder)
-{
-}
-
-static struct drm_encoder_helper_funcs exynos_dp_encoder_helper_funcs = {
- .mode_fixup = exynos_dp_mode_fixup,
- .mode_set = exynos_dp_mode_set,
- .enable = exynos_dp_enable,
- .disable = exynos_dp_disable,
-};
-
-static struct drm_encoder_funcs exynos_dp_encoder_funcs = {
- .destroy = drm_encoder_cleanup,
-};
-
-static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
+static struct video_info *analogix_dp_dt_parse_pdata(struct device *dev)
{
struct device_node *dp_node = dev->of_node;
struct video_info *dp_video_config;
@@ -1235,33 +1179,33 @@ static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
return dp_video_config;
}
-static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
+int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
+ struct drm_encoder *encoder,
+ struct analogix_dp_plat_data *plat_data)
{
- int ret;
-
- ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
- OF_USE_NATIVE_MODE);
- if (ret) {
- DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
- return ret;
- }
- return 0;
-}
-
-static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
-{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
struct platform_device *pdev = to_platform_device(dev);
- struct drm_device *drm_dev = data;
- struct drm_encoder *encoder = &dp->encoder;
+ struct analogix_dp_device *dp;
struct resource *res;
unsigned int irq_flags;
- int pipe, ret = 0;
+ int ret;
+
+ dp = devm_kzalloc(dev, sizeof(struct analogix_dp_device), GFP_KERNEL);
+ if (!dp)
+ return -ENOMEM;
+
+ dev_set_drvdata(dev, dp);
dp->dev = &pdev->dev;
dp->dpms_mode = DRM_MODE_DPMS_OFF;
- dp->video_info = exynos_dp_dt_parse_pdata(&pdev->dev);
+ /*
+ * platform dp driver need containor_of the plat_data to get
+ * the driver private data, so we need to store the point of
+ * plat_data, not the context of plat_data.
+ */
+ dp->plat_data = plat_data;
+
+ dp->video_info = analogix_dp_dt_parse_pdata(&pdev->dev);
if (IS_ERR(dp->video_info))
return PTR_ERR(dp->video_info);
@@ -1281,12 +1225,6 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
}
}
- if (!dp->panel && !dp->bridge) {
- ret = exynos_dp_dt_parse_panel(dp);
- if (ret)
- return ret;
- }
-
dp->clock = devm_clk_get(&pdev->dev, "dp");
if (IS_ERR(dp->clock)) {
dev_err(&pdev->dev, "failed to get clock\n");
@@ -1301,7 +1239,10 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
if (IS_ERR(dp->reg_base))
return PTR_ERR(dp->reg_base);
- dp->hpd_gpio = of_get_named_gpio(dev->of_node, "samsung,hpd-gpio", 0);
+ dp->hpd_gpio = of_get_named_gpio(dev->of_node, "hpd-gpios", 0);
+ if (gpio_is_valid(dp->hpd_gpio))
+ dp->hpd_gpio = of_get_named_gpio(dev->of_node,
+ "samsung,hpd-gpio", 0);
if (gpio_is_valid(dp->hpd_gpio)) {
/*
@@ -1330,14 +1271,14 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
return -ENODEV;
}
- INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug);
+ INIT_WORK(&dp->hotplug_work, analogix_dp_hotplug);
phy_power_on(dp->phy);
- exynos_dp_init_dp(dp);
+ analogix_dp_init_dp(dp);
- ret = devm_request_irq(&pdev->dev, dp->irq, exynos_dp_irq_handler,
- irq_flags, "exynos-dp", dp);
+ ret = devm_request_irq(&pdev->dev, dp->irq, analogix_dp_irq_handler,
+ irq_flags, "analogix-dp", dp);
if (ret) {
dev_err(&pdev->dev, "failed to request irq\n");
return ret;
@@ -1345,22 +1286,9 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
disable_irq(dp->irq);
dp->drm_dev = drm_dev;
+ dp->encoder = encoder;
- pipe = exynos_drm_crtc_get_pipe_from_type(drm_dev,
- EXYNOS_DISPLAY_TYPE_LCD);
- if (pipe < 0)
- return pipe;
-
- encoder->possible_crtcs = 1 << pipe;
-
- DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
-
- drm_encoder_init(drm_dev, encoder, &exynos_dp_encoder_funcs,
- DRM_MODE_ENCODER_TMDS);
-
- drm_encoder_helper_add(encoder, &exynos_dp_encoder_helper_funcs);
-
- ret = exynos_dp_create_connector(encoder);
+ ret = analogix_dp_create_bridge(drm_dev, dp);
if (ret) {
DRM_ERROR("failed to create connector ret = %d\n", ret);
drm_encoder_cleanup(encoder);
@@ -1369,103 +1297,36 @@ static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
return 0;
}
+EXPORT_SYMBOL_GPL(analogix_dp_bind);
-static void exynos_dp_unbind(struct device *dev, struct device *master,
- void *data)
+void analogix_dp_unbind(struct device *dev, struct device *master, void *data)
{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_disable(&dp->encoder);
-}
-
-static const struct component_ops exynos_dp_ops = {
- .bind = exynos_dp_bind,
- .unbind = exynos_dp_unbind,
-};
-
-static int exynos_dp_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *panel_node, *bridge_node, *endpoint;
- struct exynos_dp_device *dp;
-
- dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
- GFP_KERNEL);
- if (!dp)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, dp);
-
- panel_node = of_parse_phandle(dev->of_node, "panel", 0);
- if (panel_node) {
- dp->panel = of_drm_find_panel(panel_node);
- of_node_put(panel_node);
- if (!dp->panel)
- return -EPROBE_DEFER;
- }
-
- endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
- if (endpoint) {
- bridge_node = of_graph_get_remote_port_parent(endpoint);
- if (bridge_node) {
- dp->ptn_bridge = of_drm_find_bridge(bridge_node);
- of_node_put(bridge_node);
- if (!dp->ptn_bridge)
- return -EPROBE_DEFER;
- } else {
- return -EPROBE_DEFER;
- }
- }
-
- return component_add(&pdev->dev, &exynos_dp_ops);
-}
-
-static int exynos_dp_remove(struct platform_device *pdev)
-{
- component_del(&pdev->dev, &exynos_dp_ops);
-
- return 0;
+ analogix_dp_bridge_disable(dp->bridge);
}
+EXPORT_SYMBOL_GPL(analogix_dp_unbind);
#ifdef CONFIG_PM_SLEEP
-static int exynos_dp_suspend(struct device *dev)
+int analogix_dp_suspend(struct device *dev)
{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_bridge_disable(dp->bridge);
+ analogix_dp_bridge_disable(dp->bridge);
return 0;
}
+EXPORT_SYMBOL_GPL(analogix_dp_suspend);
-static int exynos_dp_resume(struct device *dev)
+int analogix_dp_resume(struct device *dev)
{
- struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct analogix_dp_device *dp = dev_get_drvdata(dev);
- exynos_dp_bridge_enable(dp->bridge);
+ analogix_dp_bridge_enable(dp->bridge);
return 0;
}
+EXPORT_SYMBOL_GPL(analogix_dp_resume);
#endif
-static const struct dev_pm_ops exynos_dp_pm_ops = {
- SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
-};
-
-static const struct of_device_id exynos_dp_match[] = {
- { .compatible = "samsung,exynos5-dp" },
- {},
-};
-MODULE_DEVICE_TABLE(of, exynos_dp_match);
-
-struct platform_driver dp_driver = {
- .probe = exynos_dp_probe,
- .remove = exynos_dp_remove,
- .driver = {
- .name = "exynos-dp",
- .owner = THIS_MODULE,
- .pm = &exynos_dp_pm_ops,
- .of_match_table = exynos_dp_match,
- },
-};
-
MODULE_AUTHOR("Jingoo Han <jg1.han@...sung.com>");
-MODULE_DESCRIPTION("Samsung SoC DP Driver");
+MODULE_DESCRIPTION("Analogix Core DP Driver");
MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
new file mode 100644
index 0000000..d7e47e0
--- /dev/null
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.h
@@ -0,0 +1,283 @@
+/*
+ * Header file for Analogix DP (Display Port) core interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@...sung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#ifndef _ANALOGIX_DP_CORE_H
+#define _ANALOGIX_DP_CORE_H
+
+#include <drm/drm_crtc.h>
+#include <drm/drm_dp_helper.h>
+
+#define DP_TIMEOUT_LOOP_COUNT 100
+#define MAX_CR_LOOP 5
+#define MAX_EQ_LOOP 5
+
+enum link_rate_type {
+ LINK_RATE_1_62GBPS = 0x06,
+ LINK_RATE_2_70GBPS = 0x0a
+};
+
+enum link_lane_count_type {
+ LANE_COUNT1 = 1,
+ LANE_COUNT2 = 2,
+ LANE_COUNT4 = 4
+};
+
+enum link_training_state {
+ START,
+ CLOCK_RECOVERY,
+ EQUALIZER_TRAINING,
+ FINISHED,
+ FAILED
+};
+
+enum voltage_swing_level {
+ VOLTAGE_LEVEL_0,
+ VOLTAGE_LEVEL_1,
+ VOLTAGE_LEVEL_2,
+ VOLTAGE_LEVEL_3,
+};
+
+enum pre_emphasis_level {
+ PRE_EMPHASIS_LEVEL_0,
+ PRE_EMPHASIS_LEVEL_1,
+ PRE_EMPHASIS_LEVEL_2,
+ PRE_EMPHASIS_LEVEL_3,
+};
+
+enum pattern_set {
+ PRBS7,
+ D10_2,
+ TRAINING_PTN1,
+ TRAINING_PTN2,
+ DP_NONE
+};
+
+enum color_space {
+ COLOR_RGB,
+ COLOR_YCBCR422,
+ COLOR_YCBCR444
+};
+
+enum color_depth {
+ COLOR_6,
+ COLOR_8,
+ COLOR_10,
+ COLOR_12
+};
+
+enum color_coefficient {
+ COLOR_YCBCR601,
+ COLOR_YCBCR709
+};
+
+enum dynamic_range {
+ VESA,
+ CEA
+};
+
+enum pll_status {
+ PLL_UNLOCKED,
+ PLL_LOCKED
+};
+
+enum clock_recovery_m_value_type {
+ CALCULATED_M,
+ REGISTER_M
+};
+
+enum video_timing_recognition_type {
+ VIDEO_TIMING_FROM_CAPTURE,
+ VIDEO_TIMING_FROM_REGISTER
+};
+
+enum analog_power_block {
+ AUX_BLOCK,
+ CH0_BLOCK,
+ CH1_BLOCK,
+ CH2_BLOCK,
+ CH3_BLOCK,
+ ANALOG_TOTAL,
+ POWER_ALL
+};
+
+enum dp_irq_type {
+ DP_IRQ_TYPE_HP_CABLE_IN,
+ DP_IRQ_TYPE_HP_CABLE_OUT,
+ DP_IRQ_TYPE_HP_CHANGE,
+ DP_IRQ_TYPE_UNKNOWN,
+};
+
+struct video_info {
+ char *name;
+
+ bool h_sync_polarity;
+ bool v_sync_polarity;
+ bool interlaced;
+
+ enum color_space color_space;
+ enum dynamic_range dynamic_range;
+ enum color_coefficient ycbcr_coeff;
+ enum color_depth color_depth;
+
+ enum link_rate_type link_rate;
+ enum link_lane_count_type lane_count;
+};
+
+struct link_train {
+ int eq_loop;
+ int cr_loop[4];
+
+ u8 link_rate;
+ u8 lane_count;
+ u8 training_lane[4];
+
+ enum link_training_state lt_state;
+};
+
+struct analogix_dp_device {
+ struct device *dev;
+ struct drm_device *drm_dev;
+ struct drm_connector connector;
+ struct drm_encoder *encoder;
+ struct drm_bridge *bridge;
+ struct clk *clock;
+ unsigned int irq;
+ void __iomem *reg_base;
+
+ struct video_info *video_info;
+ struct link_train link_train;
+ struct work_struct hotplug_work;
+ struct phy *phy;
+ int dpms_mode;
+ int hpd_gpio;
+
+ struct analogix_dp_plat_data *plat_data;
+};
+
+/* analogix_dp_reg.c */
+void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable);
+void analogix_dp_stop_video(struct analogix_dp_device *dp);
+void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable);
+void analogix_dp_init_analog_param(struct analogix_dp_device *dp);
+void analogix_dp_init_interrupt(struct analogix_dp_device *dp);
+void analogix_dp_reset(struct analogix_dp_device *dp);
+void analogix_dp_swreset(struct analogix_dp_device *dp);
+void analogix_dp_config_interrupt(struct analogix_dp_device *dp);
+enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp);
+void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable);
+void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
+ enum analog_power_block block,
+ bool enable);
+void analogix_dp_init_analog_func(struct analogix_dp_device *dp);
+void analogix_dp_init_hpd(struct analogix_dp_device *dp);
+enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp);
+void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp);
+void analogix_dp_reset_aux(struct analogix_dp_device *dp);
+void analogix_dp_init_aux(struct analogix_dp_device *dp);
+int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);
+void analogix_dp_enable_sw_function(struct analogix_dp_device *dp);
+int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp);
+int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char data);
+int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char *data);
+int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
+int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[]);
+int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr);
+int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data);
+int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[]);
+void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype);
+void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype);
+void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count);
+void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count);
+void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
+ bool enable);
+void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
+ enum pattern_set pattern);
+void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level);
+void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
+ u32 training_lane);
+u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp);
+u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp);
+u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp);
+u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp);
+void analogix_dp_reset_macro(struct analogix_dp_device *dp);
+void analogix_dp_init_video(struct analogix_dp_device *dp);
+
+void analogix_dp_set_video_color_format(struct analogix_dp_device *dp);
+int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp);
+void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
+ enum clock_recovery_m_value_type type,
+ u32 m_value,
+ u32 n_value);
+void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type);
+void analogix_dp_enable_video_master(struct analogix_dp_device *dp,
+ bool enable);
+void analogix_dp_start_video(struct analogix_dp_device *dp);
+int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp);
+void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp);
+void analogix_dp_enable_scrambling(struct analogix_dp_device *dp);
+void analogix_dp_disable_scrambling(struct analogix_dp_device *dp);
+
+/* I2C EDID Chip ID, Slave Address */
+#define I2C_EDID_DEVICE_ADDR 0x50
+#define I2C_E_EDID_DEVICE_ADDR 0x30
+
+#define EDID_BLOCK_LENGTH 0x80
+#define EDID_HEADER_PATTERN 0x00
+#define EDID_EXTENSION_FLAG 0x7e
+#define EDID_CHECKSUM 0x7f
+
+/* DP_MAX_LANE_COUNT */
+#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
+#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
+
+/* DP_LANE_COUNT_SET */
+#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
+
+/* DP_TRAINING_LANE0_SET */
+#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
+#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
+#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
+#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
+
+#endif /* _ANALOGIX_DP_CORE_H */
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
new file mode 100644
index 0000000..b879d8c
--- /dev/null
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
@@ -0,0 +1,1265 @@
+/*
+ * Analogix DP (Display port) core register interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@...sung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+
+#include "analogix_dp_core.h"
+#include "analogix_dp_reg.h"
+
+#define COMMON_INT_MASK_1 0
+#define COMMON_INT_MASK_2 0
+#define COMMON_INT_MASK_3 0
+#define COMMON_INT_MASK_4 (HOTPLUG_CHG | HPD_LOST | PLUG)
+#define INT_STA_MASK INT_HPD
+
+void analogix_dp_enable_video_mute(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg |= HDCP_VIDEO_MUTE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg &= ~HDCP_VIDEO_MUTE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ }
+}
+
+void analogix_dp_stop_video(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg &= ~VIDEO_EN;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+}
+
+void analogix_dp_lane_swap(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable)
+ reg = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
+ LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
+ else
+ reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
+ LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
+
+ writel(reg, dp->reg_base + ANALOGIX_DP_LANE_MAP);
+}
+
+void analogix_dp_init_analog_param(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = TX_TERMINAL_CTRL_50_OHM;
+ writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_1);
+
+ reg = SEL_24M | TX_DVDD_BIT_1_0625V;
+ writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_2);
+
+ reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
+ writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_3);
+
+ reg = PD_RING_OSC | AUX_TERMINAL_CTRL_50_OHM |
+ TX_CUR1_2X | TX_CUR_16_MA;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PLL_FILTER_CTL_1);
+
+ reg = CH3_AMP_400_MV | CH2_AMP_400_MV |
+ CH1_AMP_400_MV | CH0_AMP_400_MV;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TX_AMP_TUNING_CTL);
+}
+
+void analogix_dp_init_interrupt(struct analogix_dp_device *dp)
+{
+ /* Set interrupt pin assertion polarity as high */
+ writel(INT_POL1 | INT_POL0, dp->reg_base + ANALOGIX_DP_INT_CTL);
+
+ /* Clear pending regisers */
+ writel(0xff, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
+ writel(0x4f, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_2);
+ writel(0xe0, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_3);
+ writel(0xe7, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
+ writel(0x63, dp->reg_base + ANALOGIX_DP_INT_STA);
+
+ /* 0:mask,1: unmask */
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_1);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_INT_STA_MASK);
+}
+
+void analogix_dp_reset(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ analogix_dp_stop_video(dp);
+ analogix_dp_enable_video_mute(dp, 0);
+
+ reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N |
+ AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N |
+ HDCP_FUNC_EN_N | SW_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+
+ reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
+ SERDES_FIFO_FUNC_EN_N |
+ LS_CLK_DOMAIN_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+
+ usleep_range(20, 30);
+
+ analogix_dp_lane_swap(dp, 0);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+ writel(0x40, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_PKT_SEND_CTL);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_HDCP_CTL);
+
+ writel(0x5e, dp->reg_base + ANALOGIX_DP_HPD_DEGLITCH_L);
+ writel(0x1a, dp->reg_base + ANALOGIX_DP_HPD_DEGLITCH_H);
+
+ writel(0x10, dp->reg_base + ANALOGIX_DP_LINK_DEBUG_CTL);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_PHY_TEST);
+
+ writel(0x0, dp->reg_base + ANALOGIX_DP_VIDEO_FIFO_THRD);
+ writel(0x20, dp->reg_base + ANALOGIX_DP_AUDIO_MARGIN);
+
+ writel(0x4, dp->reg_base + ANALOGIX_DP_M_VID_GEN_FILTER_TH);
+ writel(0x2, dp->reg_base + ANALOGIX_DP_M_AUD_GEN_FILTER_TH);
+
+ writel(0x00000101, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+}
+
+void analogix_dp_swreset(struct analogix_dp_device *dp)
+{
+ writel(RESET_DP_TX, dp->reg_base + ANALOGIX_DP_TX_SW_RESET);
+}
+
+void analogix_dp_config_interrupt(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* 0: mask, 1: unmask */
+ reg = COMMON_INT_MASK_1;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_1);
+
+ reg = COMMON_INT_MASK_2;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_2);
+
+ reg = COMMON_INT_MASK_3;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_3);
+
+ reg = COMMON_INT_MASK_4;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_MASK_4);
+
+ reg = INT_STA_MASK;
+ writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA_MASK);
+}
+
+enum pll_status analogix_dp_get_pll_lock_status(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
+ if (reg & PLL_LOCK)
+ return PLL_LOCKED;
+ else
+ return PLL_UNLOCKED;
+}
+
+void analogix_dp_set_pll_power_down(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ reg |= DP_PLL_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ reg &= ~DP_PLL_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PLL_CTL);
+ }
+}
+
+void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
+ enum analog_power_block block,
+ bool enable)
+{
+ u32 reg;
+
+ switch (block) {
+ case AUX_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= AUX_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~AUX_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH0_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH0_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH0_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH1_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH1_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH1_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH2_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH2_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH2_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case CH3_BLOCK:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= CH3_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~CH3_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case ANALOG_TOTAL:
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg |= DP_PHY_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+ reg &= ~DP_PHY_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ case POWER_ALL:
+ if (enable) {
+ reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
+ CH1_PD | CH0_PD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ } else {
+ writel(0x00, dp->reg_base + ANALOGIX_DP_PHY_PD);
+ }
+ break;
+ default:
+ break;
+ }
+}
+
+void analogix_dp_init_analog_func(struct analogix_dp_device *dp)
+{
+ u32 reg;
+ int timeout_loop = 0;
+
+ analogix_dp_set_analog_power_down(dp, POWER_ALL, 0);
+
+ reg = PLL_LOCK_CHG;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
+ reg &= ~(F_PLL_LOCK | PLL_LOCK_CTRL);
+ writel(reg, dp->reg_base + ANALOGIX_DP_DEBUG_CTL);
+
+ /* Power up PLL */
+ if (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ analogix_dp_set_pll_power_down(dp, 0);
+
+ while (analogix_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
+ timeout_loop++;
+ if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+ dev_err(dp->dev, "failed to get pll lock status\n");
+ return;
+ }
+ usleep_range(10, 20);
+ }
+ }
+
+ /* Enable Serdes FIFO function and Link symbol clock domain module */
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+ reg &= ~(SERDES_FIFO_FUNC_EN_N | LS_CLK_DOMAIN_FUNC_EN_N
+ | AUX_FUNC_EN_N);
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+}
+
+void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio))
+ return;
+
+ reg = HOTPLUG_CHG | HPD_LOST | PLUG;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
+
+ reg = INT_HPD;
+ writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA);
+}
+
+void analogix_dp_init_hpd(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio))
+ return;
+
+ analogix_dp_clear_hotplug_interrupts(dp);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ reg &= ~(F_HPD | HPD_CTRL);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+}
+
+enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio)) {
+ reg = gpio_get_value(dp->hpd_gpio);
+ if (reg)
+ return DP_IRQ_TYPE_HP_CABLE_IN;
+ else
+ return DP_IRQ_TYPE_HP_CABLE_OUT;
+ } else {
+ /* Parse hotplug interrupt status register */
+ reg = readl(dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_4);
+
+ if (reg & PLUG)
+ return DP_IRQ_TYPE_HP_CABLE_IN;
+
+ if (reg & HPD_LOST)
+ return DP_IRQ_TYPE_HP_CABLE_OUT;
+
+ if (reg & HOTPLUG_CHG)
+ return DP_IRQ_TYPE_HP_CHANGE;
+
+ return DP_IRQ_TYPE_UNKNOWN;
+ }
+}
+
+void analogix_dp_reset_aux(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* Disable AUX channel module */
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+ reg |= AUX_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+}
+
+void analogix_dp_init_aux(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* Clear inerrupts related to AUX channel */
+ reg = RPLY_RECEIV | AUX_ERR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_INT_STA);
+
+ analogix_dp_reset_aux(dp);
+
+ /* Disable AUX transaction H/W retry */
+ reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
+ AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_HW_RETRY_CTL);
+
+ /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
+ reg = DEFER_CTRL_EN | DEFER_COUNT(1);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_DEFER_CTL);
+
+ /* Enable AUX channel module */
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+ reg &= ~AUX_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_2);
+}
+
+int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ if (gpio_is_valid(dp->hpd_gpio)) {
+ if (gpio_get_value(dp->hpd_gpio))
+ return 0;
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ if (reg & HPD_STATUS)
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+void analogix_dp_enable_sw_function(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+ reg &= ~SW_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+}
+
+int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp)
+{
+ int reg;
+ int retval = 0;
+ int timeout_loop = 0;
+
+ /* Enable AUX CH operation */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+ reg |= AUX_EN;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+
+ /* Is AUX CH command reply received? */
+ reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
+ while (!(reg & RPLY_RECEIV)) {
+ timeout_loop++;
+ if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
+ dev_err(dp->dev, "AUX CH command reply failed!\n");
+ return -ETIMEDOUT;
+ }
+ reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
+ usleep_range(10, 11);
+ }
+
+ /* Clear interrupt source for AUX CH command reply */
+ writel(RPLY_RECEIV, dp->reg_base + ANALOGIX_DP_INT_STA);
+
+ /* Clear interrupt source for AUX CH access error */
+ reg = readl(dp->reg_base + ANALOGIX_DP_INT_STA);
+ if (reg & AUX_ERR) {
+ writel(AUX_ERR, dp->reg_base + ANALOGIX_DP_INT_STA);
+ return -EREMOTEIO;
+ }
+
+ /* Check AUX CH error access status */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_STA);
+ if ((reg & AUX_STATUS_MASK) != 0) {
+ dev_err(dp->dev, "AUX CH error happens: %d\n\n",
+ reg & AUX_STATUS_MASK);
+ return -EREMOTEIO;
+ }
+
+ return retval;
+}
+
+int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char data)
+{
+ u32 reg;
+ int i;
+ int retval;
+
+ for (i = 0; i < 3; i++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /* Write data buffer */
+ reg = (unsigned int)data;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+
+ /*
+ * Set DisplayPort transaction and write 1 byte
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+ }
+
+ return retval;
+}
+
+int analogix_dp_read_byte_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned char *data)
+{
+ u32 reg;
+ int i;
+ int retval;
+
+ for (i = 0; i < 3; i++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /*
+ * Set DisplayPort transaction and read 1 byte
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+ }
+
+ /* Read data buffer */
+ reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+ *data = (unsigned char)(reg & 0xff);
+
+ return retval;
+}
+
+int analogix_dp_write_bytes_to_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
+{
+ u32 reg;
+ unsigned int start_offset;
+ unsigned int cur_data_count;
+ unsigned int cur_data_idx;
+ int i;
+ int retval = 0;
+
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ start_offset = 0;
+ while (start_offset < count) {
+ /* Buffer size of AUX CH is 16 * 4bytes */
+ if ((count - start_offset) > 16)
+ cur_data_count = 16;
+ else
+ cur_data_count = count - start_offset;
+
+ for (i = 0; i < 3; i++) {
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+ cur_data_idx++) {
+ reg = data[start_offset + cur_data_idx];
+ writel(reg, dp->reg_base +
+ ANALOGIX_DP_BUF_DATA_0 +
+ 4 * cur_data_idx);
+ }
+
+ /*
+ * Set DisplayPort transaction and write
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_LENGTH(cur_data_count) |
+ AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
+ }
+
+ start_offset += cur_data_count;
+ }
+
+ return retval;
+}
+
+int analogix_dp_read_bytes_from_dpcd(struct analogix_dp_device *dp,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char data[])
+{
+ u32 reg;
+ unsigned int start_offset;
+ unsigned int cur_data_count;
+ unsigned int cur_data_idx;
+ int i;
+ int retval = 0;
+
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ start_offset = 0;
+ while (start_offset < count) {
+ /* Buffer size of AUX CH is 16 * 4bytes */
+ if ((count - start_offset) > 16)
+ cur_data_count = 16;
+ else
+ cur_data_count = count - start_offset;
+
+ /* AUX CH Request Transaction process */
+ for (i = 0; i < 3; i++) {
+ /* Select DPCD device address */
+ reg = AUX_ADDR_7_0(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ reg = AUX_ADDR_15_8(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ reg = AUX_ADDR_19_16(reg_addr + start_offset);
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /*
+ * Set DisplayPort transaction and read
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_LENGTH(cur_data_count) |
+ AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
+ }
+
+ for (cur_data_idx = 0; cur_data_idx < cur_data_count;
+ cur_data_idx++) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0
+ + 4 * cur_data_idx);
+ data[start_offset + cur_data_idx] =
+ (unsigned char)reg;
+ }
+
+ start_offset += cur_data_count;
+ }
+
+ return retval;
+}
+
+int analogix_dp_select_i2c_device(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr)
+{
+ u32 reg;
+ int retval;
+
+ /* Set EDID device address */
+ reg = device_addr;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_ADDR_7_0);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_AUX_ADDR_15_8);
+ writel(0x0, dp->reg_base + ANALOGIX_DP_AUX_ADDR_19_16);
+
+ /* Set offset from base address of EDID device */
+ writel(reg_addr, dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+
+ /*
+ * Set I2C transaction and write address
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_MOT |
+ AUX_TX_COMM_WRITE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval != 0)
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+
+ return retval;
+}
+
+int analogix_dp_read_byte_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int *data)
+{
+ u32 reg;
+ int i;
+ int retval;
+
+ for (i = 0; i < 3; i++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Select EDID device */
+ retval = analogix_dp_select_i2c_device(dp, device_addr,
+ reg_addr);
+ if (retval != 0)
+ continue;
+
+ /*
+ * Set I2C transaction and read data
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_TX_COMM_I2C_TRANSACTION |
+ AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
+ }
+
+ /* Read data */
+ if (retval == 0)
+ *data = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0);
+
+ return retval;
+}
+
+int analogix_dp_read_bytes_from_i2c(struct analogix_dp_device *dp,
+ unsigned int device_addr,
+ unsigned int reg_addr,
+ unsigned int count,
+ unsigned char edid[])
+{
+ u32 reg;
+ unsigned int i, j;
+ unsigned int cur_data_idx;
+ unsigned int defer = 0;
+ int retval = 0;
+
+ for (i = 0; i < count; i += 16) {
+ for (j = 0; j < 3; j++) {
+ /* Clear AUX CH data buffer */
+ reg = BUF_CLR;
+ writel(reg, dp->reg_base + ANALOGIX_DP_BUFFER_DATA_CTL);
+
+ /* Set normal AUX CH command */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+ reg &= ~ADDR_ONLY;
+ writel(reg, dp->reg_base + ANALOGIX_DP_AUX_CH_CTL_2);
+
+ /*
+ * If Rx sends defer, Tx sends only reads
+ * request without sending address
+ */
+ if (!defer)
+ retval = analogix_dp_select_i2c_device(
+ dp, device_addr, reg_addr + i);
+ else
+ defer = 0;
+
+ if (retval == 0) {
+ /*
+ * Set I2C transaction and write data
+ * If bit 3 is 1, DisplayPort transaction.
+ * If Bit 3 is 0, I2C transaction.
+ */
+ reg = AUX_LENGTH(16) |
+ AUX_TX_COMM_I2C_TRANSACTION |
+ AUX_TX_COMM_READ;
+ writel(reg, dp->reg_base +
+ ANALOGIX_DP_AUX_CH_CTL_1);
+
+ /* Start AUX transaction */
+ retval = analogix_dp_start_aux_transaction(dp);
+ if (retval == 0)
+ break;
+
+ dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
+ __func__);
+ }
+ /* Check if Rx sends defer */
+ reg = readl(dp->reg_base + ANALOGIX_DP_AUX_RX_COMM);
+ if (reg == AUX_RX_COMM_AUX_DEFER ||
+ reg == AUX_RX_COMM_I2C_DEFER) {
+ dev_err(dp->dev, "Defer: %d\n\n", reg);
+ defer = 1;
+ }
+ }
+
+ for (cur_data_idx = 0; cur_data_idx < 16; cur_data_idx++) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_BUF_DATA_0
+ + 4 * cur_data_idx);
+ edid[i + cur_data_idx] = (unsigned char)reg;
+ }
+ }
+
+ return retval;
+}
+
+void analogix_dp_set_link_bandwidth(struct analogix_dp_device *dp, u32 bwtype)
+{
+ u32 reg;
+
+ reg = bwtype;
+ if ((bwtype == LINK_RATE_2_70GBPS) || (bwtype == LINK_RATE_1_62GBPS))
+ writel(reg, dp->reg_base + ANALOGIX_DP_LINK_BW_SET);
+}
+
+void analogix_dp_get_link_bandwidth(struct analogix_dp_device *dp, u32 *bwtype)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LINK_BW_SET);
+ *bwtype = reg;
+}
+
+void analogix_dp_set_lane_count(struct analogix_dp_device *dp, u32 count)
+{
+ u32 reg;
+
+ reg = count;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LANE_COUNT_SET);
+}
+
+void analogix_dp_get_lane_count(struct analogix_dp_device *dp, u32 *count)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LANE_COUNT_SET);
+ *count = reg;
+}
+
+void analogix_dp_enable_enhanced_mode(struct analogix_dp_device *dp,
+ bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg |= ENHANCED;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg &= ~ENHANCED;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ }
+}
+
+void analogix_dp_set_training_pattern(struct analogix_dp_device *dp,
+ enum pattern_set pattern)
+{
+ u32 reg;
+
+ switch (pattern) {
+ case PRBS7:
+ reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_PRBS7;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case D10_2:
+ reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_D10_2;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case TRAINING_PTN1:
+ reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN1;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case TRAINING_PTN2:
+ reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN2;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ case DP_NONE:
+ reg = SCRAMBLING_ENABLE |
+ LINK_QUAL_PATTERN_SET_DISABLE |
+ SW_TRAINING_PATTERN_SET_NORMAL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ break;
+ default:
+ break;
+ }
+}
+
+void analogix_dp_set_lane0_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane1_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane2_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane3_pre_emphasis(struct analogix_dp_device *dp,
+ u32 level)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+ reg &= ~PRE_EMPHASIS_SET_MASK;
+ reg |= level << PRE_EMPHASIS_SET_SHIFT;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane0_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane1_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane2_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+}
+
+void analogix_dp_set_lane3_link_training(struct analogix_dp_device *dp,
+ u32 training_lane)
+{
+ u32 reg;
+
+ reg = training_lane;
+ writel(reg, dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+}
+
+u32 analogix_dp_get_lane0_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN0_LINK_TRAINING_CTL);
+ return reg;
+}
+
+u32 analogix_dp_get_lane1_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN1_LINK_TRAINING_CTL);
+ return reg;
+}
+
+u32 analogix_dp_get_lane2_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN2_LINK_TRAINING_CTL);
+ return reg;
+}
+
+u32 analogix_dp_get_lane3_link_training(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_LN3_LINK_TRAINING_CTL);
+ return reg;
+}
+
+void analogix_dp_reset_macro(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_PHY_TEST);
+ reg |= MACRO_RST;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
+
+ /* 10 us is the minimum reset time. */
+ usleep_range(10, 20);
+
+ reg &= ~MACRO_RST;
+ writel(reg, dp->reg_base + ANALOGIX_DP_PHY_TEST);
+}
+
+void analogix_dp_init_video(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
+ writel(reg, dp->reg_base + ANALOGIX_DP_COMMON_INT_STA_1);
+
+ reg = 0x0;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+
+ reg = CHA_CRI(4) | CHA_CTRL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+
+ reg = 0x0;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+
+ reg = VID_HRES_TH(2) | VID_VRES_TH(0);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_8);
+}
+
+void analogix_dp_set_video_color_format(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ /* Configure the input color depth, color space, dynamic range */
+ reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) |
+ (dp->video_info->color_depth << IN_BPC_SHIFT) |
+ (dp->video_info->color_space << IN_COLOR_F_SHIFT);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_2);
+
+ /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
+ reg &= ~IN_YC_COEFFI_MASK;
+ if (dp->video_info->ycbcr_coeff)
+ reg |= IN_YC_COEFFI_ITU709;
+ else
+ reg |= IN_YC_COEFFI_ITU601;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_3);
+}
+
+int analogix_dp_is_slave_video_stream_clock_on(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_1);
+
+ if (!(reg & DET_STA)) {
+ dev_dbg(dp->dev, "Input stream clock not detected.\n");
+ return -EINVAL;
+ }
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_2);
+ dev_dbg(dp->dev, "wait SYS_CTL_2.\n");
+
+ if (reg & CHA_STA) {
+ dev_dbg(dp->dev, "Input stream clk is changing\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void analogix_dp_set_video_cr_mn(struct analogix_dp_device *dp,
+ enum clock_recovery_m_value_type type,
+ u32 m_value, u32 n_value)
+{
+ u32 reg;
+
+ if (type == REGISTER_M) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg |= FIX_M_VID;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg = m_value & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_0);
+ reg = (m_value >> 8) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_1);
+ reg = (m_value >> 16) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_M_VID_2);
+
+ reg = n_value & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_0);
+ reg = (n_value >> 8) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_1);
+ reg = (n_value >> 16) & 0xff;
+ writel(reg, dp->reg_base + ANALOGIX_DP_N_VID_2);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+ reg &= ~FIX_M_VID;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_4);
+
+ writel(0x00, dp->reg_base + ANALOGIX_DP_N_VID_0);
+ writel(0x80, dp->reg_base + ANALOGIX_DP_N_VID_1);
+ writel(0x00, dp->reg_base + ANALOGIX_DP_N_VID_2);
+ }
+}
+
+void analogix_dp_set_video_timing_mode(struct analogix_dp_device *dp, u32 type)
+{
+ u32 reg;
+
+ if (type == VIDEO_TIMING_FROM_CAPTURE) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~FORMAT_SEL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg |= FORMAT_SEL;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ }
+}
+
+void analogix_dp_enable_video_master(struct analogix_dp_device *dp, bool enable)
+{
+ u32 reg;
+
+ if (enable) {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ reg &= ~VIDEO_MODE_MASK;
+ reg |= VIDEO_MASTER_MODE_EN | VIDEO_MODE_MASTER_MODE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ } else {
+ reg = readl(dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ reg &= ~VIDEO_MODE_MASK;
+ reg |= VIDEO_MODE_SLAVE_MODE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+ }
+}
+
+void analogix_dp_start_video(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+ reg |= VIDEO_EN;
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_1);
+}
+
+int analogix_dp_is_video_stream_on(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ writel(reg, dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3);
+ if (!(reg & STRM_VALID)) {
+ dev_dbg(dp->dev, "Input video stream is not detected.\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void analogix_dp_config_video_slave_mode(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+ reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
+ reg |= MASTER_VID_FUNC_EN_N;
+ writel(reg, dp->reg_base + ANALOGIX_DP_FUNC_EN_1);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~INTERACE_SCAN_CFG;
+ reg |= (dp->video_info->interlaced << 2);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~VSYNC_POLARITY_CFG;
+ reg |= (dp->video_info->v_sync_polarity << 1);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+ reg &= ~HSYNC_POLARITY_CFG;
+ reg |= (dp->video_info->h_sync_polarity << 0);
+ writel(reg, dp->reg_base + ANALOGIX_DP_VIDEO_CTL_10);
+
+ reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_SOC_GENERAL_CTL);
+}
+
+void analogix_dp_enable_scrambling(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ reg &= ~SCRAMBLING_DISABLE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+}
+
+void analogix_dp_disable_scrambling(struct analogix_dp_device *dp)
+{
+ u32 reg;
+
+ reg = readl(dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+ reg |= SCRAMBLING_DISABLE;
+ writel(reg, dp->reg_base + ANALOGIX_DP_TRAINING_PTN_SET);
+}
diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
similarity index 64%
rename from drivers/gpu/drm/exynos/exynos_dp_reg.h
rename to drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
index 2e9bd0e..2d878fd 100644
--- a/drivers/gpu/drm/exynos/exynos_dp_reg.h
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
@@ -1,5 +1,5 @@
/*
- * Register definition file for Samsung DP driver
+ * Register definition file for Analogix DP core driver
*
* Copyright (C) 2012 Samsung Electronics Co., Ltd.
* Author: Jingoo Han <jg1.han@...sung.com>
@@ -9,96 +9,96 @@
* published by the Free Software Foundation.
*/
-#ifndef _EXYNOS_DP_REG_H
-#define _EXYNOS_DP_REG_H
-
-#define EXYNOS_DP_TX_SW_RESET 0x14
-#define EXYNOS_DP_FUNC_EN_1 0x18
-#define EXYNOS_DP_FUNC_EN_2 0x1C
-#define EXYNOS_DP_VIDEO_CTL_1 0x20
-#define EXYNOS_DP_VIDEO_CTL_2 0x24
-#define EXYNOS_DP_VIDEO_CTL_3 0x28
-
-#define EXYNOS_DP_VIDEO_CTL_8 0x3C
-#define EXYNOS_DP_VIDEO_CTL_10 0x44
-
-#define EXYNOS_DP_LANE_MAP 0x35C
-
-#define EXYNOS_DP_ANALOG_CTL_1 0x370
-#define EXYNOS_DP_ANALOG_CTL_2 0x374
-#define EXYNOS_DP_ANALOG_CTL_3 0x378
-#define EXYNOS_DP_PLL_FILTER_CTL_1 0x37C
-#define EXYNOS_DP_TX_AMP_TUNING_CTL 0x380
-
-#define EXYNOS_DP_AUX_HW_RETRY_CTL 0x390
-
-#define EXYNOS_DP_COMMON_INT_STA_1 0x3C4
-#define EXYNOS_DP_COMMON_INT_STA_2 0x3C8
-#define EXYNOS_DP_COMMON_INT_STA_3 0x3CC
-#define EXYNOS_DP_COMMON_INT_STA_4 0x3D0
-#define EXYNOS_DP_INT_STA 0x3DC
-#define EXYNOS_DP_COMMON_INT_MASK_1 0x3E0
-#define EXYNOS_DP_COMMON_INT_MASK_2 0x3E4
-#define EXYNOS_DP_COMMON_INT_MASK_3 0x3E8
-#define EXYNOS_DP_COMMON_INT_MASK_4 0x3EC
-#define EXYNOS_DP_INT_STA_MASK 0x3F8
-#define EXYNOS_DP_INT_CTL 0x3FC
-
-#define EXYNOS_DP_SYS_CTL_1 0x600
-#define EXYNOS_DP_SYS_CTL_2 0x604
-#define EXYNOS_DP_SYS_CTL_3 0x608
-#define EXYNOS_DP_SYS_CTL_4 0x60C
-
-#define EXYNOS_DP_PKT_SEND_CTL 0x640
-#define EXYNOS_DP_HDCP_CTL 0x648
-
-#define EXYNOS_DP_LINK_BW_SET 0x680
-#define EXYNOS_DP_LANE_COUNT_SET 0x684
-#define EXYNOS_DP_TRAINING_PTN_SET 0x688
-#define EXYNOS_DP_LN0_LINK_TRAINING_CTL 0x68C
-#define EXYNOS_DP_LN1_LINK_TRAINING_CTL 0x690
-#define EXYNOS_DP_LN2_LINK_TRAINING_CTL 0x694
-#define EXYNOS_DP_LN3_LINK_TRAINING_CTL 0x698
-
-#define EXYNOS_DP_DEBUG_CTL 0x6C0
-#define EXYNOS_DP_HPD_DEGLITCH_L 0x6C4
-#define EXYNOS_DP_HPD_DEGLITCH_H 0x6C8
-#define EXYNOS_DP_LINK_DEBUG_CTL 0x6E0
-
-#define EXYNOS_DP_M_VID_0 0x700
-#define EXYNOS_DP_M_VID_1 0x704
-#define EXYNOS_DP_M_VID_2 0x708
-#define EXYNOS_DP_N_VID_0 0x70C
-#define EXYNOS_DP_N_VID_1 0x710
-#define EXYNOS_DP_N_VID_2 0x714
-
-#define EXYNOS_DP_PLL_CTL 0x71C
-#define EXYNOS_DP_PHY_PD 0x720
-#define EXYNOS_DP_PHY_TEST 0x724
-
-#define EXYNOS_DP_VIDEO_FIFO_THRD 0x730
-#define EXYNOS_DP_AUDIO_MARGIN 0x73C
-
-#define EXYNOS_DP_M_VID_GEN_FILTER_TH 0x764
-#define EXYNOS_DP_M_AUD_GEN_FILTER_TH 0x778
-#define EXYNOS_DP_AUX_CH_STA 0x780
-#define EXYNOS_DP_AUX_CH_DEFER_CTL 0x788
-#define EXYNOS_DP_AUX_RX_COMM 0x78C
-#define EXYNOS_DP_BUFFER_DATA_CTL 0x790
-#define EXYNOS_DP_AUX_CH_CTL_1 0x794
-#define EXYNOS_DP_AUX_ADDR_7_0 0x798
-#define EXYNOS_DP_AUX_ADDR_15_8 0x79C
-#define EXYNOS_DP_AUX_ADDR_19_16 0x7A0
-#define EXYNOS_DP_AUX_CH_CTL_2 0x7A4
-
-#define EXYNOS_DP_BUF_DATA_0 0x7C0
-
-#define EXYNOS_DP_SOC_GENERAL_CTL 0x800
-
-/* EXYNOS_DP_TX_SW_RESET */
+#ifndef _ANALOGIX_DP_REG_H
+#define _ANALOGIX_DP_REG_H
+
+#define ANALOGIX_DP_TX_SW_RESET 0x14
+#define ANALOGIX_DP_FUNC_EN_1 0x18
+#define ANALOGIX_DP_FUNC_EN_2 0x1C
+#define ANALOGIX_DP_VIDEO_CTL_1 0x20
+#define ANALOGIX_DP_VIDEO_CTL_2 0x24
+#define ANALOGIX_DP_VIDEO_CTL_3 0x28
+
+#define ANALOGIX_DP_VIDEO_CTL_8 0x3C
+#define ANALOGIX_DP_VIDEO_CTL_10 0x44
+
+#define ANALOGIX_DP_LANE_MAP 0x35C
+
+#define ANALOGIX_DP_ANALOG_CTL_1 0x370
+#define ANALOGIX_DP_ANALOG_CTL_2 0x374
+#define ANALOGIX_DP_ANALOG_CTL_3 0x378
+#define ANALOGIX_DP_PLL_FILTER_CTL_1 0x37C
+#define ANALOGIX_DP_TX_AMP_TUNING_CTL 0x380
+
+#define ANALOGIX_DP_AUX_HW_RETRY_CTL 0x390
+
+#define ANALOGIX_DP_COMMON_INT_STA_1 0x3C4
+#define ANALOGIX_DP_COMMON_INT_STA_2 0x3C8
+#define ANALOGIX_DP_COMMON_INT_STA_3 0x3CC
+#define ANALOGIX_DP_COMMON_INT_STA_4 0x3D0
+#define ANALOGIX_DP_INT_STA 0x3DC
+#define ANALOGIX_DP_COMMON_INT_MASK_1 0x3E0
+#define ANALOGIX_DP_COMMON_INT_MASK_2 0x3E4
+#define ANALOGIX_DP_COMMON_INT_MASK_3 0x3E8
+#define ANALOGIX_DP_COMMON_INT_MASK_4 0x3EC
+#define ANALOGIX_DP_INT_STA_MASK 0x3F8
+#define ANALOGIX_DP_INT_CTL 0x3FC
+
+#define ANALOGIX_DP_SYS_CTL_1 0x600
+#define ANALOGIX_DP_SYS_CTL_2 0x604
+#define ANALOGIX_DP_SYS_CTL_3 0x608
+#define ANALOGIX_DP_SYS_CTL_4 0x60C
+
+#define ANALOGIX_DP_PKT_SEND_CTL 0x640
+#define ANALOGIX_DP_HDCP_CTL 0x648
+
+#define ANALOGIX_DP_LINK_BW_SET 0x680
+#define ANALOGIX_DP_LANE_COUNT_SET 0x684
+#define ANALOGIX_DP_TRAINING_PTN_SET 0x688
+#define ANALOGIX_DP_LN0_LINK_TRAINING_CTL 0x68C
+#define ANALOGIX_DP_LN1_LINK_TRAINING_CTL 0x690
+#define ANALOGIX_DP_LN2_LINK_TRAINING_CTL 0x694
+#define ANALOGIX_DP_LN3_LINK_TRAINING_CTL 0x698
+
+#define ANALOGIX_DP_DEBUG_CTL 0x6C0
+#define ANALOGIX_DP_HPD_DEGLITCH_L 0x6C4
+#define ANALOGIX_DP_HPD_DEGLITCH_H 0x6C8
+#define ANALOGIX_DP_LINK_DEBUG_CTL 0x6E0
+
+#define ANALOGIX_DP_M_VID_0 0x700
+#define ANALOGIX_DP_M_VID_1 0x704
+#define ANALOGIX_DP_M_VID_2 0x708
+#define ANALOGIX_DP_N_VID_0 0x70C
+#define ANALOGIX_DP_N_VID_1 0x710
+#define ANALOGIX_DP_N_VID_2 0x714
+
+#define ANALOGIX_DP_PLL_CTL 0x71C
+#define ANALOGIX_DP_PHY_PD 0x720
+#define ANALOGIX_DP_PHY_TEST 0x724
+
+#define ANALOGIX_DP_VIDEO_FIFO_THRD 0x730
+#define ANALOGIX_DP_AUDIO_MARGIN 0x73C
+
+#define ANALOGIX_DP_M_VID_GEN_FILTER_TH 0x764
+#define ANALOGIX_DP_M_AUD_GEN_FILTER_TH 0x778
+#define ANALOGIX_DP_AUX_CH_STA 0x780
+#define ANALOGIX_DP_AUX_CH_DEFER_CTL 0x788
+#define ANALOGIX_DP_AUX_RX_COMM 0x78C
+#define ANALOGIX_DP_BUFFER_DATA_CTL 0x790
+#define ANALOGIX_DP_AUX_CH_CTL_1 0x794
+#define ANALOGIX_DP_AUX_ADDR_7_0 0x798
+#define ANALOGIX_DP_AUX_ADDR_15_8 0x79C
+#define ANALOGIX_DP_AUX_ADDR_19_16 0x7A0
+#define ANALOGIX_DP_AUX_CH_CTL_2 0x7A4
+
+#define ANALOGIX_DP_BUF_DATA_0 0x7C0
+
+#define ANALOGIX_DP_SOC_GENERAL_CTL 0x800
+
+/* ANALOGIX_DP_TX_SW_RESET */
#define RESET_DP_TX (0x1 << 0)
-/* EXYNOS_DP_FUNC_EN_1 */
+/* ANALOGIX_DP_FUNC_EN_1 */
#define MASTER_VID_FUNC_EN_N (0x1 << 7)
#define SLAVE_VID_FUNC_EN_N (0x1 << 5)
#define AUD_FIFO_FUNC_EN_N (0x1 << 4)
@@ -107,17 +107,17 @@
#define CRC_FUNC_EN_N (0x1 << 1)
#define SW_FUNC_EN_N (0x1 << 0)
-/* EXYNOS_DP_FUNC_EN_2 */
+/* ANALOGIX_DP_FUNC_EN_2 */
#define SSC_FUNC_EN_N (0x1 << 7)
#define AUX_FUNC_EN_N (0x1 << 2)
#define SERDES_FIFO_FUNC_EN_N (0x1 << 1)
#define LS_CLK_DOMAIN_FUNC_EN_N (0x1 << 0)
-/* EXYNOS_DP_VIDEO_CTL_1 */
+/* ANALOGIX_DP_VIDEO_CTL_1 */
#define VIDEO_EN (0x1 << 7)
#define HDCP_VIDEO_MUTE (0x1 << 6)
-/* EXYNOS_DP_VIDEO_CTL_1 */
+/* ANALOGIX_DP_VIDEO_CTL_1 */
#define IN_D_RANGE_MASK (0x1 << 7)
#define IN_D_RANGE_SHIFT (7)
#define IN_D_RANGE_CEA (0x1 << 7)
@@ -134,7 +134,7 @@
#define IN_COLOR_F_YCBCR422 (0x1 << 0)
#define IN_COLOR_F_RGB (0x0 << 0)
-/* EXYNOS_DP_VIDEO_CTL_3 */
+/* ANALOGIX_DP_VIDEO_CTL_3 */
#define IN_YC_COEFFI_MASK (0x1 << 7)
#define IN_YC_COEFFI_SHIFT (7)
#define IN_YC_COEFFI_ITU709 (0x1 << 7)
@@ -144,17 +144,17 @@
#define VID_CHK_UPDATE_TYPE_1 (0x1 << 4)
#define VID_CHK_UPDATE_TYPE_0 (0x0 << 4)
-/* EXYNOS_DP_VIDEO_CTL_8 */
+/* ANALOGIX_DP_VIDEO_CTL_8 */
#define VID_HRES_TH(x) (((x) & 0xf) << 4)
#define VID_VRES_TH(x) (((x) & 0xf) << 0)
-/* EXYNOS_DP_VIDEO_CTL_10 */
+/* ANALOGIX_DP_VIDEO_CTL_10 */
#define FORMAT_SEL (0x1 << 4)
#define INTERACE_SCAN_CFG (0x1 << 2)
#define VSYNC_POLARITY_CFG (0x1 << 1)
#define HSYNC_POLARITY_CFG (0x1 << 0)
-/* EXYNOS_DP_LANE_MAP */
+/* ANALOGIX_DP_LANE_MAP */
#define LANE3_MAP_LOGIC_LANE_0 (0x0 << 6)
#define LANE3_MAP_LOGIC_LANE_1 (0x1 << 6)
#define LANE3_MAP_LOGIC_LANE_2 (0x2 << 6)
@@ -172,30 +172,30 @@
#define LANE0_MAP_LOGIC_LANE_2 (0x2 << 0)
#define LANE0_MAP_LOGIC_LANE_3 (0x3 << 0)
-/* EXYNOS_DP_ANALOG_CTL_1 */
+/* ANALOGIX_DP_ANALOG_CTL_1 */
#define TX_TERMINAL_CTRL_50_OHM (0x1 << 4)
-/* EXYNOS_DP_ANALOG_CTL_2 */
+/* ANALOGIX_DP_ANALOG_CTL_2 */
#define SEL_24M (0x1 << 3)
#define TX_DVDD_BIT_1_0625V (0x4 << 0)
-/* EXYNOS_DP_ANALOG_CTL_3 */
+/* ANALOGIX_DP_ANALOG_CTL_3 */
#define DRIVE_DVDD_BIT_1_0625V (0x4 << 5)
#define VCO_BIT_600_MICRO (0x5 << 0)
-/* EXYNOS_DP_PLL_FILTER_CTL_1 */
+/* ANALOGIX_DP_PLL_FILTER_CTL_1 */
#define PD_RING_OSC (0x1 << 6)
#define AUX_TERMINAL_CTRL_50_OHM (0x2 << 4)
#define TX_CUR1_2X (0x1 << 2)
#define TX_CUR_16_MA (0x3 << 0)
-/* EXYNOS_DP_TX_AMP_TUNING_CTL */
+/* ANALOGIX_DP_TX_AMP_TUNING_CTL */
#define CH3_AMP_400_MV (0x0 << 24)
#define CH2_AMP_400_MV (0x0 << 16)
#define CH1_AMP_400_MV (0x0 << 8)
#define CH0_AMP_400_MV (0x0 << 0)
-/* EXYNOS_DP_AUX_HW_RETRY_CTL */
+/* ANALOGIX_DP_AUX_HW_RETRY_CTL */
#define AUX_BIT_PERIOD_EXPECTED_DELAY(x) (((x) & 0x7) << 8)
#define AUX_HW_RETRY_INTERVAL_MASK (0x3 << 3)
#define AUX_HW_RETRY_INTERVAL_600_MICROSECONDS (0x0 << 3)
@@ -204,7 +204,7 @@
#define AUX_HW_RETRY_INTERVAL_1800_MICROSECONDS (0x3 << 3)
#define AUX_HW_RETRY_COUNT_SEL(x) (((x) & 0x7) << 0)
-/* EXYNOS_DP_COMMON_INT_STA_1 */
+/* ANALOGIX_DP_COMMON_INT_STA_1 */
#define VSYNC_DET (0x1 << 7)
#define PLL_LOCK_CHG (0x1 << 6)
#define SPDIF_ERR (0x1 << 5)
@@ -214,19 +214,19 @@
#define VID_CLK_CHG (0x1 << 1)
#define SW_INT (0x1 << 0)
-/* EXYNOS_DP_COMMON_INT_STA_2 */
+/* ANALOGIX_DP_COMMON_INT_STA_2 */
#define ENC_EN_CHG (0x1 << 6)
#define HW_BKSV_RDY (0x1 << 3)
#define HW_SHA_DONE (0x1 << 2)
#define HW_AUTH_STATE_CHG (0x1 << 1)
#define HW_AUTH_DONE (0x1 << 0)
-/* EXYNOS_DP_COMMON_INT_STA_3 */
+/* ANALOGIX_DP_COMMON_INT_STA_3 */
#define AFIFO_UNDER (0x1 << 7)
#define AFIFO_OVER (0x1 << 6)
#define R0_CHK_FLAG (0x1 << 5)
-/* EXYNOS_DP_COMMON_INT_STA_4 */
+/* ANALOGIX_DP_COMMON_INT_STA_4 */
#define PSR_ACTIVE (0x1 << 7)
#define PSR_INACTIVE (0x1 << 6)
#define SPDIF_BI_PHASE_ERR (0x1 << 5)
@@ -234,29 +234,29 @@
#define HPD_LOST (0x1 << 1)
#define PLUG (0x1 << 0)
-/* EXYNOS_DP_INT_STA */
+/* ANALOGIX_DP_INT_STA */
#define INT_HPD (0x1 << 6)
#define HW_TRAINING_FINISH (0x1 << 5)
#define RPLY_RECEIV (0x1 << 1)
#define AUX_ERR (0x1 << 0)
-/* EXYNOS_DP_INT_CTL */
+/* ANALOGIX_DP_INT_CTL */
#define SOFT_INT_CTRL (0x1 << 2)
#define INT_POL1 (0x1 << 1)
#define INT_POL0 (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_1 */
+/* ANALOGIX_DP_SYS_CTL_1 */
#define DET_STA (0x1 << 2)
#define FORCE_DET (0x1 << 1)
#define DET_CTRL (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_2 */
+/* ANALOGIX_DP_SYS_CTL_2 */
#define CHA_CRI(x) (((x) & 0xf) << 4)
#define CHA_STA (0x1 << 2)
#define FORCE_CHA (0x1 << 1)
#define CHA_CTRL (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_3 */
+/* ANALOGIX_DP_SYS_CTL_3 */
#define HPD_STATUS (0x1 << 6)
#define F_HPD (0x1 << 5)
#define HPD_CTRL (0x1 << 4)
@@ -265,13 +265,13 @@
#define F_VALID (0x1 << 1)
#define VALID_CTRL (0x1 << 0)
-/* EXYNOS_DP_SYS_CTL_4 */
+/* ANALOGIX_DP_SYS_CTL_4 */
#define FIX_M_AUD (0x1 << 4)
#define ENHANCED (0x1 << 3)
#define FIX_M_VID (0x1 << 2)
#define M_VID_UPDATE_CTRL (0x3 << 0)
-/* EXYNOS_DP_TRAINING_PTN_SET */
+/* ANALOGIX_DP_TRAINING_PTN_SET */
#define SCRAMBLER_TYPE (0x1 << 9)
#define HW_LINK_TRAINING_PATTERN (0x1 << 8)
#define SCRAMBLING_DISABLE (0x1 << 5)
@@ -285,24 +285,24 @@
#define SW_TRAINING_PATTERN_SET_PTN1 (0x1 << 0)
#define SW_TRAINING_PATTERN_SET_NORMAL (0x0 << 0)
-/* EXYNOS_DP_LN0_LINK_TRAINING_CTL */
+/* ANALOGIX_DP_LN0_LINK_TRAINING_CTL */
#define PRE_EMPHASIS_SET_MASK (0x3 << 3)
#define PRE_EMPHASIS_SET_SHIFT (3)
-/* EXYNOS_DP_DEBUG_CTL */
+/* ANALOGIX_DP_DEBUG_CTL */
#define PLL_LOCK (0x1 << 4)
#define F_PLL_LOCK (0x1 << 3)
#define PLL_LOCK_CTRL (0x1 << 2)
#define PN_INV (0x1 << 0)
-/* EXYNOS_DP_PLL_CTL */
+/* ANALOGIX_DP_PLL_CTL */
#define DP_PLL_PD (0x1 << 7)
#define DP_PLL_RESET (0x1 << 6)
#define DP_PLL_LOOP_BIT_DEFAULT (0x1 << 4)
#define DP_PLL_REF_BIT_1_1250V (0x5 << 0)
#define DP_PLL_REF_BIT_1_2500V (0x7 << 0)
-/* EXYNOS_DP_PHY_PD */
+/* ANALOGIX_DP_PHY_PD */
#define DP_PHY_PD (0x1 << 5)
#define AUX_PD (0x1 << 4)
#define CH3_PD (0x1 << 3)
@@ -310,28 +310,28 @@
#define CH1_PD (0x1 << 1)
#define CH0_PD (0x1 << 0)
-/* EXYNOS_DP_PHY_TEST */
+/* ANALOGIX_DP_PHY_TEST */
#define MACRO_RST (0x1 << 5)
#define CH1_TEST (0x1 << 1)
#define CH0_TEST (0x1 << 0)
-/* EXYNOS_DP_AUX_CH_STA */
+/* ANALOGIX_DP_AUX_CH_STA */
#define AUX_BUSY (0x1 << 4)
#define AUX_STATUS_MASK (0xf << 0)
-/* EXYNOS_DP_AUX_CH_DEFER_CTL */
+/* ANALOGIX_DP_AUX_CH_DEFER_CTL */
#define DEFER_CTRL_EN (0x1 << 7)
#define DEFER_COUNT(x) (((x) & 0x7f) << 0)
-/* EXYNOS_DP_AUX_RX_COMM */
+/* ANALOGIX_DP_AUX_RX_COMM */
#define AUX_RX_COMM_I2C_DEFER (0x2 << 2)
#define AUX_RX_COMM_AUX_DEFER (0x2 << 0)
-/* EXYNOS_DP_BUFFER_DATA_CTL */
+/* ANALOGIX_DP_BUFFER_DATA_CTL */
#define BUF_CLR (0x1 << 7)
#define BUF_DATA_COUNT(x) (((x) & 0x1f) << 0)
-/* EXYNOS_DP_AUX_CH_CTL_1 */
+/* ANALOGIX_DP_AUX_CH_CTL_1 */
#define AUX_LENGTH(x) (((x - 1) & 0xf) << 4)
#define AUX_TX_COMM_MASK (0xf << 0)
#define AUX_TX_COMM_DP_TRANSACTION (0x1 << 3)
@@ -340,20 +340,20 @@
#define AUX_TX_COMM_WRITE (0x0 << 0)
#define AUX_TX_COMM_READ (0x1 << 0)
-/* EXYNOS_DP_AUX_ADDR_7_0 */
+/* ANALOGIX_DP_AUX_ADDR_7_0 */
#define AUX_ADDR_7_0(x) (((x) >> 0) & 0xff)
-/* EXYNOS_DP_AUX_ADDR_15_8 */
+/* ANALOGIX_DP_AUX_ADDR_15_8 */
#define AUX_ADDR_15_8(x) (((x) >> 8) & 0xff)
-/* EXYNOS_DP_AUX_ADDR_19_16 */
+/* ANALOGIX_DP_AUX_ADDR_19_16 */
#define AUX_ADDR_19_16(x) (((x) >> 16) & 0x0f)
-/* EXYNOS_DP_AUX_CH_CTL_2 */
+/* ANALOGIX_DP_AUX_CH_CTL_2 */
#define ADDR_ONLY (0x1 << 1)
#define AUX_EN (0x1 << 0)
-/* EXYNOS_DP_SOC_GENERAL_CTL */
+/* ANALOGIX_DP_SOC_GENERAL_CTL */
#define AUDIO_MODE_SPDIF_MODE (0x1 << 8)
#define AUDIO_MODE_MASTER_MODE (0x0 << 8)
#define MASTER_VIDEO_INTERLACE_EN (0x1 << 4)
@@ -363,4 +363,4 @@
#define VIDEO_MODE_SLAVE_MODE (0x1 << 0)
#define VIDEO_MODE_MASTER_MODE (0x0 << 0)
-#endif /* _EXYNOS_DP_REG_H */
+#endif /* _ANALOGIX_DP_REG_H */
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index bd1a415..5f74f80 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -55,8 +55,9 @@ config DRM_EXYNOS_DSI
This enables support for Exynos MIPI-DSI device.
config DRM_EXYNOS_DP
- bool "EXYNOS DRM DP driver support"
+ bool "EXYNOS specific extensions for Analogix DP driver"
depends on DRM_EXYNOS && (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON)
+ select DRM_ANALOGIX_DP
default DRM_EXYNOS
select DRM_PANEL
help
diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
index 02aecfe..4453798 100644
--- a/drivers/gpu/drm/exynos/Makefile
+++ b/drivers/gpu/drm/exynos/Makefile
@@ -13,7 +13,7 @@ exynosdrm-$(CONFIG_DRM_EXYNOS5433_DECON) += exynos5433_drm_decon.o
exynosdrm-$(CONFIG_DRM_EXYNOS7_DECON) += exynos7_drm_decon.o
exynosdrm-$(CONFIG_DRM_EXYNOS_DPI) += exynos_drm_dpi.o
exynosdrm-$(CONFIG_DRM_EXYNOS_DSI) += exynos_drm_dsi.o
-exynosdrm-$(CONFIG_DRM_EXYNOS_DP) += exynos_dp_core.o exynos_dp_reg.o
+exynosdrm-$(CONFIG_DRM_EXYNOS_DP) += exynos_dp.o
exynosdrm-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o
exynosdrm-$(CONFIG_DRM_EXYNOS_VIDI) += exynos_drm_vidi.o
exynosdrm-$(CONFIG_DRM_EXYNOS_G2D) += exynos_drm_g2d.o
diff --git a/drivers/gpu/drm/exynos/exynos_dp.c b/drivers/gpu/drm/exynos/exynos_dp.c
new file mode 100644
index 0000000..7e1be72
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_dp.c
@@ -0,0 +1,306 @@
+/*
+ * Samsung SoC DP (Display Port) interface driver.
+ *
+ * Copyright (C) 2012 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@...sung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/component.h>
+#include <linux/of_graph.h>
+#include <video/of_display_timing.h>
+#include <video/of_videomode.h>
+
+#include <drm/drmP.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_crtc_helper.h>
+
+#include <drm/bridge/analogix_dp.h>
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_crtc.h"
+
+#define plat_data_to_dp(pd) \
+ container_of(pd, struct exynos_dp_device, plat_data)
+
+struct exynos_dp_device {
+ struct drm_encoder encoder;
+ struct drm_bridge *ptn_bridge;
+ struct drm_device *drm_dev;
+ struct device *dev;
+
+ struct exynos_drm_panel_info priv;
+ struct analogix_dp_plat_data plat_data;
+};
+
+int exynos_dp_crtc_clock_enable(struct analogix_dp_plat_data *plat_data,
+ bool enable)
+{
+ struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
+ struct drm_encoder *encoder = &dp->encoder;
+ struct exynos_drm_crtc *crtc;
+
+ if (!encoder)
+ return -1;
+
+ crtc = to_exynos_crtc(encoder->crtc);
+ if (crtc && crtc->ops && crtc->ops->clock_enable)
+ crtc->ops->clock_enable(crtc, enable);
+
+ return 0;
+}
+
+static int exynos_dp_poweron(struct analogix_dp_plat_data *plat_data)
+{
+ return exynos_dp_crtc_clock_enable(plat_data, true);
+}
+
+static int exynos_dp_poweroff(struct analogix_dp_plat_data *plat_data)
+{
+ return exynos_dp_crtc_clock_enable(plat_data, false);
+}
+
+static int exynos_dp_get_modes(struct analogix_dp_plat_data *plat_data,
+ struct drm_connector *connector)
+{
+ struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
+ struct drm_display_mode *mode;
+
+ if (dp->plat_data.panel)
+ return 0;
+
+ mode = drm_mode_create(connector->dev);
+ if (!mode) {
+ DRM_ERROR("failed to create a new display mode.\n");
+ return 0;
+ }
+
+ drm_display_mode_from_videomode(&dp->priv.vm, mode);
+ mode->width_mm = dp->priv.width_mm;
+ mode->height_mm = dp->priv.height_mm;
+ connector->display_info.width_mm = mode->width_mm;
+ connector->display_info.height_mm = mode->height_mm;
+
+ mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+ drm_mode_set_name(mode);
+ drm_mode_probed_add(connector, mode);
+
+ return 1;
+}
+
+static int exynos_dp_bridge_attach(struct analogix_dp_plat_data *plat_data,
+ struct drm_bridge *bridge)
+{
+ struct exynos_dp_device *dp = plat_data_to_dp(plat_data);
+ struct drm_encoder *encoder = &dp->encoder;
+ int ret;
+
+ /* Pre-empt DP connector creation if there's a bridge */
+ if (dp->ptn_bridge) {
+ bridge->next = dp->ptn_bridge;
+ dp->ptn_bridge->encoder = encoder;
+ ret = drm_bridge_attach(encoder->dev, dp->ptn_bridge);
+ if (ret) {
+ DRM_ERROR("Failed to attach bridge to drm\n");
+ bridge->next = NULL;
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static bool exynos_dp_mode_fixup(struct drm_encoder *encoder,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+static void exynos_dp_mode_set(struct drm_encoder *encoder,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+}
+
+static void exynos_dp_enable(struct drm_encoder *encoder)
+{
+}
+
+static void exynos_dp_disable(struct drm_encoder *encoder)
+{
+}
+
+static struct drm_encoder_helper_funcs exynos_dp_encoder_helper_funcs = {
+ .mode_fixup = exynos_dp_mode_fixup,
+ .mode_set = exynos_dp_mode_set,
+ .enable = exynos_dp_enable,
+ .disable = exynos_dp_disable,
+};
+
+static struct drm_encoder_funcs exynos_dp_encoder_funcs = {
+ .destroy = drm_encoder_cleanup,
+};
+
+static int exynos_dp_dt_parse_panel(struct exynos_dp_device *dp)
+{
+ int ret;
+
+ ret = of_get_videomode(dp->dev->of_node, &dp->priv.vm,
+ OF_USE_NATIVE_MODE);
+ if (ret) {
+ DRM_ERROR("failed: of_get_videomode() : %d\n", ret);
+ return ret;
+ }
+ return 0;
+}
+
+static int exynos_dp_bind(struct device *dev, struct device *master, void *data)
+{
+ struct exynos_dp_device *dp = dev_get_drvdata(dev);
+ struct drm_encoder *encoder = &dp->encoder;
+ struct drm_device *drm_dev = data;
+ int pipe, ret;
+
+ /*
+ * Just like the probe function said, we don't need the
+ * device drvrate anymore, we should leave the charge to
+ * analogix dp driver, set the device drvdata to NULL.
+ */
+ dev_set_drvdata(dev, NULL);
+
+ dp->dev = dev;
+ dp->drm_dev = drm_dev;
+
+ dp->plat_data.power_on = exynos_dp_poweron;
+ dp->plat_data.power_off = exynos_dp_poweroff;
+ dp->plat_data.get_modes = exynos_dp_get_modes;
+ dp->plat_data.attach = exynos_dp_bridge_attach;
+
+ if (!dp->plat_data.panel || !dp->ptn_bridge) {
+ ret = exynos_dp_dt_parse_panel(dp);
+ if (ret)
+ return ret;
+ }
+
+ pipe = exynos_drm_crtc_get_pipe_from_type(drm_dev,
+ EXYNOS_DISPLAY_TYPE_LCD);
+ if (pipe < 0)
+ return pipe;
+
+ encoder->possible_crtcs = 1 << pipe;
+
+ DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs);
+
+ drm_encoder_init(drm_dev, encoder, &exynos_dp_encoder_funcs,
+ DRM_MODE_ENCODER_TMDS);
+
+ drm_encoder_helper_add(encoder, &exynos_dp_encoder_helper_funcs);
+
+ return analogix_dp_bind(dev, dp->drm_dev, encoder, &dp->plat_data);
+}
+
+static void exynos_dp_unbind(struct device *dev, struct device *master,
+ void *data)
+{
+ return analogix_dp_unbind(dev, master, data);
+}
+
+static const struct component_ops exynos_dp_ops = {
+ .bind = exynos_dp_bind,
+ .unbind = exynos_dp_unbind,
+};
+
+static int exynos_dp_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *panel_node, *bridge_node, *endpoint;
+ struct exynos_dp_device *dp;
+
+ dp = devm_kzalloc(&pdev->dev, sizeof(struct exynos_dp_device),
+ GFP_KERNEL);
+ if (!dp)
+ return -ENOMEM;
+
+ /*
+ * We just use the drvdata until driver run into component
+ * add function, and then we would set drvdata to null, so
+ * that analogix dp driver would take charge of the drvdata.
+ */
+ platform_set_drvdata(pdev, dp);
+
+ panel_node = of_parse_phandle(dev->of_node, "panel", 0);
+ if (panel_node) {
+ dp->plat_data.panel = of_drm_find_panel(panel_node);
+ of_node_put(panel_node);
+ if (!dp->plat_data.panel)
+ return -EPROBE_DEFER;
+ }
+
+ endpoint = of_graph_get_next_endpoint(dev->of_node, NULL);
+ if (endpoint) {
+ bridge_node = of_graph_get_remote_port_parent(endpoint);
+ if (bridge_node) {
+ dp->ptn_bridge = of_drm_find_bridge(bridge_node);
+ of_node_put(bridge_node);
+ if (!dp->ptn_bridge)
+ return -EPROBE_DEFER;
+ } else {
+ return -EPROBE_DEFER;
+ }
+ }
+
+ return component_add(&pdev->dev, &exynos_dp_ops);
+}
+
+static int exynos_dp_remove(struct platform_device *pdev)
+{
+ component_del(&pdev->dev, &exynos_dp_ops);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int exynos_dp_suspend(struct device *dev)
+{
+ return analogix_dp_suspend(dev);
+}
+
+static int exynos_dp_resume(struct device *dev)
+{
+ return analogix_dp_resume(dev);
+}
+#endif
+
+static const struct dev_pm_ops exynos_dp_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(exynos_dp_suspend, exynos_dp_resume)
+};
+
+static const struct of_device_id exynos_dp_match[] = {
+ { .compatible = "samsung,exynos5-dp" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_dp_match);
+
+struct platform_driver dp_driver = {
+ .probe = exynos_dp_probe,
+ .remove = exynos_dp_remove,
+ .driver = {
+ .name = "exynos-dp",
+ .owner = THIS_MODULE,
+ .pm = &exynos_dp_pm_ops,
+ .of_match_table = exynos_dp_match,
+ },
+};
+
+MODULE_AUTHOR("Jingoo Han <jg1.han@...sung.com>");
+MODULE_DESCRIPTION("Samsung Specific Analogix-DP Driver Extension");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/exynos/exynos_dp_core.h b/drivers/gpu/drm/exynos/exynos_dp_core.h
deleted file mode 100644
index 7ff754f..0000000
--- a/drivers/gpu/drm/exynos/exynos_dp_core.h
+++ /dev/null
@@ -1,282 +0,0 @@
-/*
- * Header file for Samsung DP (Display Port) interface driver.
- *
- * Copyright (C) 2012 Samsung Electronics Co., Ltd.
- * Author: Jingoo Han <jg1.han@...sung.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#ifndef _EXYNOS_DP_CORE_H
-#define _EXYNOS_DP_CORE_H
-
-#include <drm/drm_crtc.h>
-#include <drm/drm_dp_helper.h>
-#include <drm/exynos_drm.h>
-
-#include "exynos_drm_drv.h"
-
-#define DP_TIMEOUT_LOOP_COUNT 100
-#define MAX_CR_LOOP 5
-#define MAX_EQ_LOOP 5
-
-enum link_rate_type {
- LINK_RATE_1_62GBPS = 0x06,
- LINK_RATE_2_70GBPS = 0x0a
-};
-
-enum link_lane_count_type {
- LANE_COUNT1 = 1,
- LANE_COUNT2 = 2,
- LANE_COUNT4 = 4
-};
-
-enum link_training_state {
- START,
- CLOCK_RECOVERY,
- EQUALIZER_TRAINING,
- FINISHED,
- FAILED
-};
-
-enum voltage_swing_level {
- VOLTAGE_LEVEL_0,
- VOLTAGE_LEVEL_1,
- VOLTAGE_LEVEL_2,
- VOLTAGE_LEVEL_3,
-};
-
-enum pre_emphasis_level {
- PRE_EMPHASIS_LEVEL_0,
- PRE_EMPHASIS_LEVEL_1,
- PRE_EMPHASIS_LEVEL_2,
- PRE_EMPHASIS_LEVEL_3,
-};
-
-enum pattern_set {
- PRBS7,
- D10_2,
- TRAINING_PTN1,
- TRAINING_PTN2,
- DP_NONE
-};
-
-enum color_space {
- COLOR_RGB,
- COLOR_YCBCR422,
- COLOR_YCBCR444
-};
-
-enum color_depth {
- COLOR_6,
- COLOR_8,
- COLOR_10,
- COLOR_12
-};
-
-enum color_coefficient {
- COLOR_YCBCR601,
- COLOR_YCBCR709
-};
-
-enum dynamic_range {
- VESA,
- CEA
-};
-
-enum pll_status {
- PLL_UNLOCKED,
- PLL_LOCKED
-};
-
-enum clock_recovery_m_value_type {
- CALCULATED_M,
- REGISTER_M
-};
-
-enum video_timing_recognition_type {
- VIDEO_TIMING_FROM_CAPTURE,
- VIDEO_TIMING_FROM_REGISTER
-};
-
-enum analog_power_block {
- AUX_BLOCK,
- CH0_BLOCK,
- CH1_BLOCK,
- CH2_BLOCK,
- CH3_BLOCK,
- ANALOG_TOTAL,
- POWER_ALL
-};
-
-enum dp_irq_type {
- DP_IRQ_TYPE_HP_CABLE_IN,
- DP_IRQ_TYPE_HP_CABLE_OUT,
- DP_IRQ_TYPE_HP_CHANGE,
- DP_IRQ_TYPE_UNKNOWN,
-};
-
-struct video_info {
- char *name;
-
- bool h_sync_polarity;
- bool v_sync_polarity;
- bool interlaced;
-
- enum color_space color_space;
- enum dynamic_range dynamic_range;
- enum color_coefficient ycbcr_coeff;
- enum color_depth color_depth;
-
- enum link_rate_type link_rate;
- enum link_lane_count_type lane_count;
-};
-
-struct link_train {
- int eq_loop;
- int cr_loop[4];
-
- u8 link_rate;
- u8 lane_count;
- u8 training_lane[4];
-
- enum link_training_state lt_state;
-};
-
-struct exynos_dp_device {
- struct drm_encoder encoder;
- struct device *dev;
- struct drm_device *drm_dev;
- struct drm_connector connector;
- struct drm_panel *panel;
- struct drm_bridge *bridge;
- struct drm_bridge *ptn_bridge;
- struct clk *clock;
- unsigned int irq;
- void __iomem *reg_base;
-
- struct video_info *video_info;
- struct link_train link_train;
- struct work_struct hotplug_work;
- struct phy *phy;
- int dpms_mode;
- int hpd_gpio;
-
- struct exynos_drm_panel_info priv;
-};
-
-/* exynos_dp_reg.c */
-void exynos_dp_enable_video_mute(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_stop_video(struct exynos_dp_device *dp);
-void exynos_dp_lane_swap(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_init_analog_param(struct exynos_dp_device *dp);
-void exynos_dp_init_interrupt(struct exynos_dp_device *dp);
-void exynos_dp_reset(struct exynos_dp_device *dp);
-void exynos_dp_swreset(struct exynos_dp_device *dp);
-void exynos_dp_config_interrupt(struct exynos_dp_device *dp);
-enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp);
-void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable);
-void exynos_dp_init_analog_func(struct exynos_dp_device *dp);
-void exynos_dp_init_hpd(struct exynos_dp_device *dp);
-enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp);
-void exynos_dp_clear_hotplug_interrupts(struct exynos_dp_device *dp);
-void exynos_dp_reset_aux(struct exynos_dp_device *dp);
-void exynos_dp_init_aux(struct exynos_dp_device *dp);
-int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp);
-void exynos_dp_enable_sw_function(struct exynos_dp_device *dp);
-int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp);
-int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data);
-int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data);
-int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
-int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[]);
-int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr);
-int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data);
-int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[]);
-void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype);
-void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype);
-void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count);
-void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count);
-void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern);
-void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level);
-void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane);
-u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp);
-u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp);
-u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp);
-u32 exynos_dp_get_lane3_link_training(struct exynos_dp_device *dp);
-void exynos_dp_reset_macro(struct exynos_dp_device *dp);
-void exynos_dp_init_video(struct exynos_dp_device *dp);
-
-void exynos_dp_set_video_color_format(struct exynos_dp_device *dp);
-int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp);
-void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value,
- u32 n_value);
-void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type);
-void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable);
-void exynos_dp_start_video(struct exynos_dp_device *dp);
-int exynos_dp_is_video_stream_on(struct exynos_dp_device *dp);
-void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp);
-void exynos_dp_enable_scrambling(struct exynos_dp_device *dp);
-void exynos_dp_disable_scrambling(struct exynos_dp_device *dp);
-
-/* I2C EDID Chip ID, Slave Address */
-#define I2C_EDID_DEVICE_ADDR 0x50
-#define I2C_E_EDID_DEVICE_ADDR 0x30
-
-#define EDID_BLOCK_LENGTH 0x80
-#define EDID_HEADER_PATTERN 0x00
-#define EDID_EXTENSION_FLAG 0x7e
-#define EDID_CHECKSUM 0x7f
-
-/* DP_MAX_LANE_COUNT */
-#define DPCD_ENHANCED_FRAME_CAP(x) (((x) >> 7) & 0x1)
-#define DPCD_MAX_LANE_COUNT(x) ((x) & 0x1f)
-
-/* DP_LANE_COUNT_SET */
-#define DPCD_LANE_COUNT_SET(x) ((x) & 0x1f)
-
-/* DP_TRAINING_LANE0_SET */
-#define DPCD_PRE_EMPHASIS_SET(x) (((x) & 0x3) << 3)
-#define DPCD_PRE_EMPHASIS_GET(x) (((x) >> 3) & 0x3)
-#define DPCD_VOLTAGE_SWING_SET(x) (((x) & 0x3) << 0)
-#define DPCD_VOLTAGE_SWING_GET(x) (((x) >> 0) & 0x3)
-
-#endif /* _EXYNOS_DP_CORE_H */
diff --git a/drivers/gpu/drm/exynos/exynos_dp_reg.c b/drivers/gpu/drm/exynos/exynos_dp_reg.c
deleted file mode 100644
index 5aff19a..0000000
--- a/drivers/gpu/drm/exynos/exynos_dp_reg.c
+++ /dev/null
@@ -1,1259 +0,0 @@
-/*
- * Samsung DP (Display port) register interface driver.
- *
- * Copyright (C) 2012 Samsung Electronics Co., Ltd.
- * Author: Jingoo Han <jg1.han@...sung.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-
-#include <linux/device.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/gpio.h>
-
-#include "exynos_dp_core.h"
-#include "exynos_dp_reg.h"
-
-#define COMMON_INT_MASK_1 0
-#define COMMON_INT_MASK_2 0
-#define COMMON_INT_MASK_3 0
-#define COMMON_INT_MASK_4 (HOTPLUG_CHG | HPD_LOST | PLUG)
-#define INT_STA_MASK INT_HPD
-
-void exynos_dp_enable_video_mute(struct exynos_dp_device *dp, bool enable)
-{
- u32 reg;
-
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
- reg |= HDCP_VIDEO_MUTE;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
- reg &= ~HDCP_VIDEO_MUTE;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
- }
-}
-
-void exynos_dp_stop_video(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
- reg &= ~VIDEO_EN;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
-}
-
-void exynos_dp_lane_swap(struct exynos_dp_device *dp, bool enable)
-{
- u32 reg;
-
- if (enable)
- reg = LANE3_MAP_LOGIC_LANE_0 | LANE2_MAP_LOGIC_LANE_1 |
- LANE1_MAP_LOGIC_LANE_2 | LANE0_MAP_LOGIC_LANE_3;
- else
- reg = LANE3_MAP_LOGIC_LANE_3 | LANE2_MAP_LOGIC_LANE_2 |
- LANE1_MAP_LOGIC_LANE_1 | LANE0_MAP_LOGIC_LANE_0;
-
- writel(reg, dp->reg_base + EXYNOS_DP_LANE_MAP);
-}
-
-void exynos_dp_init_analog_param(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = TX_TERMINAL_CTRL_50_OHM;
- writel(reg, dp->reg_base + EXYNOS_DP_ANALOG_CTL_1);
-
- reg = SEL_24M | TX_DVDD_BIT_1_0625V;
- writel(reg, dp->reg_base + EXYNOS_DP_ANALOG_CTL_2);
-
- reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
- writel(reg, dp->reg_base + EXYNOS_DP_ANALOG_CTL_3);
-
- reg = PD_RING_OSC | AUX_TERMINAL_CTRL_50_OHM |
- TX_CUR1_2X | TX_CUR_16_MA;
- writel(reg, dp->reg_base + EXYNOS_DP_PLL_FILTER_CTL_1);
-
- reg = CH3_AMP_400_MV | CH2_AMP_400_MV |
- CH1_AMP_400_MV | CH0_AMP_400_MV;
- writel(reg, dp->reg_base + EXYNOS_DP_TX_AMP_TUNING_CTL);
-}
-
-void exynos_dp_init_interrupt(struct exynos_dp_device *dp)
-{
- /* Set interrupt pin assertion polarity as high */
- writel(INT_POL1 | INT_POL0, dp->reg_base + EXYNOS_DP_INT_CTL);
-
- /* Clear pending regisers */
- writel(0xff, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_1);
- writel(0x4f, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_2);
- writel(0xe0, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_3);
- writel(0xe7, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_4);
- writel(0x63, dp->reg_base + EXYNOS_DP_INT_STA);
-
- /* 0:mask,1: unmask */
- writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_1);
- writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_2);
- writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_3);
- writel(0x00, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_4);
- writel(0x00, dp->reg_base + EXYNOS_DP_INT_STA_MASK);
-}
-
-void exynos_dp_reset(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- exynos_dp_stop_video(dp);
- exynos_dp_enable_video_mute(dp, 0);
-
- reg = MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N |
- AUD_FIFO_FUNC_EN_N | AUD_FUNC_EN_N |
- HDCP_FUNC_EN_N | SW_FUNC_EN_N;
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
-
- reg = SSC_FUNC_EN_N | AUX_FUNC_EN_N |
- SERDES_FIFO_FUNC_EN_N |
- LS_CLK_DOMAIN_FUNC_EN_N;
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
-
- usleep_range(20, 30);
-
- exynos_dp_lane_swap(dp, 0);
-
- writel(0x0, dp->reg_base + EXYNOS_DP_SYS_CTL_1);
- writel(0x40, dp->reg_base + EXYNOS_DP_SYS_CTL_2);
- writel(0x0, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
- writel(0x0, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
-
- writel(0x0, dp->reg_base + EXYNOS_DP_PKT_SEND_CTL);
- writel(0x0, dp->reg_base + EXYNOS_DP_HDCP_CTL);
-
- writel(0x5e, dp->reg_base + EXYNOS_DP_HPD_DEGLITCH_L);
- writel(0x1a, dp->reg_base + EXYNOS_DP_HPD_DEGLITCH_H);
-
- writel(0x10, dp->reg_base + EXYNOS_DP_LINK_DEBUG_CTL);
-
- writel(0x0, dp->reg_base + EXYNOS_DP_PHY_TEST);
-
- writel(0x0, dp->reg_base + EXYNOS_DP_VIDEO_FIFO_THRD);
- writel(0x20, dp->reg_base + EXYNOS_DP_AUDIO_MARGIN);
-
- writel(0x4, dp->reg_base + EXYNOS_DP_M_VID_GEN_FILTER_TH);
- writel(0x2, dp->reg_base + EXYNOS_DP_M_AUD_GEN_FILTER_TH);
-
- writel(0x00000101, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
-}
-
-void exynos_dp_swreset(struct exynos_dp_device *dp)
-{
- writel(RESET_DP_TX, dp->reg_base + EXYNOS_DP_TX_SW_RESET);
-}
-
-void exynos_dp_config_interrupt(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- /* 0: mask, 1: unmask */
- reg = COMMON_INT_MASK_1;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_1);
-
- reg = COMMON_INT_MASK_2;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_2);
-
- reg = COMMON_INT_MASK_3;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_3);
-
- reg = COMMON_INT_MASK_4;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_MASK_4);
-
- reg = INT_STA_MASK;
- writel(reg, dp->reg_base + EXYNOS_DP_INT_STA_MASK);
-}
-
-enum pll_status exynos_dp_get_pll_lock_status(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_DEBUG_CTL);
- if (reg & PLL_LOCK)
- return PLL_LOCKED;
- else
- return PLL_UNLOCKED;
-}
-
-void exynos_dp_set_pll_power_down(struct exynos_dp_device *dp, bool enable)
-{
- u32 reg;
-
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PLL_CTL);
- reg |= DP_PLL_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PLL_CTL);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PLL_CTL);
- reg &= ~DP_PLL_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PLL_CTL);
- }
-}
-
-void exynos_dp_set_analog_power_down(struct exynos_dp_device *dp,
- enum analog_power_block block,
- bool enable)
-{
- u32 reg;
-
- switch (block) {
- case AUX_BLOCK:
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg |= AUX_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg &= ~AUX_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- case CH0_BLOCK:
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg |= CH0_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg &= ~CH0_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- case CH1_BLOCK:
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg |= CH1_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg &= ~CH1_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- case CH2_BLOCK:
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg |= CH2_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg &= ~CH2_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- case CH3_BLOCK:
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg |= CH3_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg &= ~CH3_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- case ANALOG_TOTAL:
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg |= DP_PHY_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_PD);
- reg &= ~DP_PHY_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- case POWER_ALL:
- if (enable) {
- reg = DP_PHY_PD | AUX_PD | CH3_PD | CH2_PD |
- CH1_PD | CH0_PD;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_PD);
- } else {
- writel(0x00, dp->reg_base + EXYNOS_DP_PHY_PD);
- }
- break;
- default:
- break;
- }
-}
-
-void exynos_dp_init_analog_func(struct exynos_dp_device *dp)
-{
- u32 reg;
- int timeout_loop = 0;
-
- exynos_dp_set_analog_power_down(dp, POWER_ALL, 0);
-
- reg = PLL_LOCK_CHG;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_1);
-
- reg = readl(dp->reg_base + EXYNOS_DP_DEBUG_CTL);
- reg &= ~(F_PLL_LOCK | PLL_LOCK_CTRL);
- writel(reg, dp->reg_base + EXYNOS_DP_DEBUG_CTL);
-
- /* Power up PLL */
- if (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
- exynos_dp_set_pll_power_down(dp, 0);
-
- while (exynos_dp_get_pll_lock_status(dp) == PLL_UNLOCKED) {
- timeout_loop++;
- if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
- dev_err(dp->dev, "failed to get pll lock status\n");
- return;
- }
- usleep_range(10, 20);
- }
- }
-
- /* Enable Serdes FIFO function and Link symbol clock domain module */
- reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_2);
- reg &= ~(SERDES_FIFO_FUNC_EN_N | LS_CLK_DOMAIN_FUNC_EN_N
- | AUX_FUNC_EN_N);
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
-}
-
-void exynos_dp_clear_hotplug_interrupts(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- if (gpio_is_valid(dp->hpd_gpio))
- return;
-
- reg = HOTPLUG_CHG | HPD_LOST | PLUG;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_4);
-
- reg = INT_HPD;
- writel(reg, dp->reg_base + EXYNOS_DP_INT_STA);
-}
-
-void exynos_dp_init_hpd(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- if (gpio_is_valid(dp->hpd_gpio))
- return;
-
- exynos_dp_clear_hotplug_interrupts(dp);
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
- reg &= ~(F_HPD | HPD_CTRL);
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
-}
-
-enum dp_irq_type exynos_dp_get_irq_type(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- if (gpio_is_valid(dp->hpd_gpio)) {
- reg = gpio_get_value(dp->hpd_gpio);
- if (reg)
- return DP_IRQ_TYPE_HP_CABLE_IN;
- else
- return DP_IRQ_TYPE_HP_CABLE_OUT;
- } else {
- /* Parse hotplug interrupt status register */
- reg = readl(dp->reg_base + EXYNOS_DP_COMMON_INT_STA_4);
-
- if (reg & PLUG)
- return DP_IRQ_TYPE_HP_CABLE_IN;
-
- if (reg & HPD_LOST)
- return DP_IRQ_TYPE_HP_CABLE_OUT;
-
- if (reg & HOTPLUG_CHG)
- return DP_IRQ_TYPE_HP_CHANGE;
-
- return DP_IRQ_TYPE_UNKNOWN;
- }
-}
-
-void exynos_dp_reset_aux(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- /* Disable AUX channel module */
- reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_2);
- reg |= AUX_FUNC_EN_N;
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
-}
-
-void exynos_dp_init_aux(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- /* Clear inerrupts related to AUX channel */
- reg = RPLY_RECEIV | AUX_ERR;
- writel(reg, dp->reg_base + EXYNOS_DP_INT_STA);
-
- exynos_dp_reset_aux(dp);
-
- /* Disable AUX transaction H/W retry */
- reg = AUX_BIT_PERIOD_EXPECTED_DELAY(3) | AUX_HW_RETRY_COUNT_SEL(0) |
- AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_HW_RETRY_CTL);
-
- /* Receive AUX Channel DEFER commands equal to DEFFER_COUNT*64 */
- reg = DEFER_CTRL_EN | DEFER_COUNT(1);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_DEFER_CTL);
-
- /* Enable AUX channel module */
- reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_2);
- reg &= ~AUX_FUNC_EN_N;
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_2);
-}
-
-int exynos_dp_get_plug_in_status(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- if (gpio_is_valid(dp->hpd_gpio)) {
- if (gpio_get_value(dp->hpd_gpio))
- return 0;
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
- if (reg & HPD_STATUS)
- return 0;
- }
-
- return -EINVAL;
-}
-
-void exynos_dp_enable_sw_function(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
- reg &= ~SW_FUNC_EN_N;
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
-}
-
-int exynos_dp_start_aux_transaction(struct exynos_dp_device *dp)
-{
- int reg;
- int retval = 0;
- int timeout_loop = 0;
-
- /* Enable AUX CH operation */
- reg = readl(dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
- reg |= AUX_EN;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
-
- /* Is AUX CH command reply received? */
- reg = readl(dp->reg_base + EXYNOS_DP_INT_STA);
- while (!(reg & RPLY_RECEIV)) {
- timeout_loop++;
- if (DP_TIMEOUT_LOOP_COUNT < timeout_loop) {
- dev_err(dp->dev, "AUX CH command reply failed!\n");
- return -ETIMEDOUT;
- }
- reg = readl(dp->reg_base + EXYNOS_DP_INT_STA);
- usleep_range(10, 11);
- }
-
- /* Clear interrupt source for AUX CH command reply */
- writel(RPLY_RECEIV, dp->reg_base + EXYNOS_DP_INT_STA);
-
- /* Clear interrupt source for AUX CH access error */
- reg = readl(dp->reg_base + EXYNOS_DP_INT_STA);
- if (reg & AUX_ERR) {
- writel(AUX_ERR, dp->reg_base + EXYNOS_DP_INT_STA);
- return -EREMOTEIO;
- }
-
- /* Check AUX CH error access status */
- reg = readl(dp->reg_base + EXYNOS_DP_AUX_CH_STA);
- if ((reg & AUX_STATUS_MASK) != 0) {
- dev_err(dp->dev, "AUX CH error happens: %d\n\n",
- reg & AUX_STATUS_MASK);
- return -EREMOTEIO;
- }
-
- return retval;
-}
-
-int exynos_dp_write_byte_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char data)
-{
- u32 reg;
- int i;
- int retval;
-
- for (i = 0; i < 3; i++) {
- /* Clear AUX CH data buffer */
- reg = BUF_CLR;
- writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
-
- /* Select DPCD device address */
- reg = AUX_ADDR_7_0(reg_addr);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
- reg = AUX_ADDR_15_8(reg_addr);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
- reg = AUX_ADDR_19_16(reg_addr);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
-
- /* Write data buffer */
- reg = (unsigned int)data;
- writel(reg, dp->reg_base + EXYNOS_DP_BUF_DATA_0);
-
- /*
- * Set DisplayPort transaction and write 1 byte
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval == 0)
- break;
-
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
- }
-
- return retval;
-}
-
-int exynos_dp_read_byte_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned char *data)
-{
- u32 reg;
- int i;
- int retval;
-
- for (i = 0; i < 3; i++) {
- /* Clear AUX CH data buffer */
- reg = BUF_CLR;
- writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
-
- /* Select DPCD device address */
- reg = AUX_ADDR_7_0(reg_addr);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
- reg = AUX_ADDR_15_8(reg_addr);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
- reg = AUX_ADDR_19_16(reg_addr);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
-
- /*
- * Set DisplayPort transaction and read 1 byte
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval == 0)
- break;
-
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
- }
-
- /* Read data buffer */
- reg = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0);
- *data = (unsigned char)(reg & 0xff);
-
- return retval;
-}
-
-int exynos_dp_write_bytes_to_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[])
-{
- u32 reg;
- unsigned int start_offset;
- unsigned int cur_data_count;
- unsigned int cur_data_idx;
- int i;
- int retval = 0;
-
- /* Clear AUX CH data buffer */
- reg = BUF_CLR;
- writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
-
- start_offset = 0;
- while (start_offset < count) {
- /* Buffer size of AUX CH is 16 * 4bytes */
- if ((count - start_offset) > 16)
- cur_data_count = 16;
- else
- cur_data_count = count - start_offset;
-
- for (i = 0; i < 3; i++) {
- /* Select DPCD device address */
- reg = AUX_ADDR_7_0(reg_addr + start_offset);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
- reg = AUX_ADDR_15_8(reg_addr + start_offset);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
- reg = AUX_ADDR_19_16(reg_addr + start_offset);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
-
- for (cur_data_idx = 0; cur_data_idx < cur_data_count;
- cur_data_idx++) {
- reg = data[start_offset + cur_data_idx];
- writel(reg, dp->reg_base + EXYNOS_DP_BUF_DATA_0
- + 4 * cur_data_idx);
- }
-
- /*
- * Set DisplayPort transaction and write
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_LENGTH(cur_data_count) |
- AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_WRITE;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval == 0)
- break;
-
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
- }
-
- start_offset += cur_data_count;
- }
-
- return retval;
-}
-
-int exynos_dp_read_bytes_from_dpcd(struct exynos_dp_device *dp,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char data[])
-{
- u32 reg;
- unsigned int start_offset;
- unsigned int cur_data_count;
- unsigned int cur_data_idx;
- int i;
- int retval = 0;
-
- /* Clear AUX CH data buffer */
- reg = BUF_CLR;
- writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
-
- start_offset = 0;
- while (start_offset < count) {
- /* Buffer size of AUX CH is 16 * 4bytes */
- if ((count - start_offset) > 16)
- cur_data_count = 16;
- else
- cur_data_count = count - start_offset;
-
- /* AUX CH Request Transaction process */
- for (i = 0; i < 3; i++) {
- /* Select DPCD device address */
- reg = AUX_ADDR_7_0(reg_addr + start_offset);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
- reg = AUX_ADDR_15_8(reg_addr + start_offset);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
- reg = AUX_ADDR_19_16(reg_addr + start_offset);
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
-
- /*
- * Set DisplayPort transaction and read
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_LENGTH(cur_data_count) |
- AUX_TX_COMM_DP_TRANSACTION | AUX_TX_COMM_READ;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval == 0)
- break;
-
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
- }
-
- for (cur_data_idx = 0; cur_data_idx < cur_data_count;
- cur_data_idx++) {
- reg = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0
- + 4 * cur_data_idx);
- data[start_offset + cur_data_idx] =
- (unsigned char)reg;
- }
-
- start_offset += cur_data_count;
- }
-
- return retval;
-}
-
-int exynos_dp_select_i2c_device(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr)
-{
- u32 reg;
- int retval;
-
- /* Set EDID device address */
- reg = device_addr;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_ADDR_7_0);
- writel(0x0, dp->reg_base + EXYNOS_DP_AUX_ADDR_15_8);
- writel(0x0, dp->reg_base + EXYNOS_DP_AUX_ADDR_19_16);
-
- /* Set offset from base address of EDID device */
- writel(reg_addr, dp->reg_base + EXYNOS_DP_BUF_DATA_0);
-
- /*
- * Set I2C transaction and write address
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_TX_COMM_I2C_TRANSACTION | AUX_TX_COMM_MOT |
- AUX_TX_COMM_WRITE;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval != 0)
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
-
- return retval;
-}
-
-int exynos_dp_read_byte_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int *data)
-{
- u32 reg;
- int i;
- int retval;
-
- for (i = 0; i < 3; i++) {
- /* Clear AUX CH data buffer */
- reg = BUF_CLR;
- writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
-
- /* Select EDID device */
- retval = exynos_dp_select_i2c_device(dp, device_addr, reg_addr);
- if (retval != 0)
- continue;
-
- /*
- * Set I2C transaction and read data
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_TX_COMM_I2C_TRANSACTION |
- AUX_TX_COMM_READ;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval == 0)
- break;
-
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n", __func__);
- }
-
- /* Read data */
- if (retval == 0)
- *data = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0);
-
- return retval;
-}
-
-int exynos_dp_read_bytes_from_i2c(struct exynos_dp_device *dp,
- unsigned int device_addr,
- unsigned int reg_addr,
- unsigned int count,
- unsigned char edid[])
-{
- u32 reg;
- unsigned int i, j;
- unsigned int cur_data_idx;
- unsigned int defer = 0;
- int retval = 0;
-
- for (i = 0; i < count; i += 16) {
- for (j = 0; j < 3; j++) {
- /* Clear AUX CH data buffer */
- reg = BUF_CLR;
- writel(reg, dp->reg_base + EXYNOS_DP_BUFFER_DATA_CTL);
-
- /* Set normal AUX CH command */
- reg = readl(dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
- reg &= ~ADDR_ONLY;
- writel(reg, dp->reg_base + EXYNOS_DP_AUX_CH_CTL_2);
-
- /*
- * If Rx sends defer, Tx sends only reads
- * request without sending address
- */
- if (!defer)
- retval = exynos_dp_select_i2c_device(
- dp, device_addr, reg_addr + i);
- else
- defer = 0;
-
- if (retval == 0) {
- /*
- * Set I2C transaction and write data
- * If bit 3 is 1, DisplayPort transaction.
- * If Bit 3 is 0, I2C transaction.
- */
- reg = AUX_LENGTH(16) |
- AUX_TX_COMM_I2C_TRANSACTION |
- AUX_TX_COMM_READ;
- writel(reg, dp->reg_base +
- EXYNOS_DP_AUX_CH_CTL_1);
-
- /* Start AUX transaction */
- retval = exynos_dp_start_aux_transaction(dp);
- if (retval == 0)
- break;
-
- dev_dbg(dp->dev, "%s: Aux Transaction fail!\n",
- __func__);
- }
- /* Check if Rx sends defer */
- reg = readl(dp->reg_base + EXYNOS_DP_AUX_RX_COMM);
- if (reg == AUX_RX_COMM_AUX_DEFER ||
- reg == AUX_RX_COMM_I2C_DEFER) {
- dev_err(dp->dev, "Defer: %d\n\n", reg);
- defer = 1;
- }
- }
-
- for (cur_data_idx = 0; cur_data_idx < 16; cur_data_idx++) {
- reg = readl(dp->reg_base + EXYNOS_DP_BUF_DATA_0
- + 4 * cur_data_idx);
- edid[i + cur_data_idx] = (unsigned char)reg;
- }
- }
-
- return retval;
-}
-
-void exynos_dp_set_link_bandwidth(struct exynos_dp_device *dp, u32 bwtype)
-{
- u32 reg;
-
- reg = bwtype;
- if ((bwtype == LINK_RATE_2_70GBPS) || (bwtype == LINK_RATE_1_62GBPS))
- writel(reg, dp->reg_base + EXYNOS_DP_LINK_BW_SET);
-}
-
-void exynos_dp_get_link_bandwidth(struct exynos_dp_device *dp, u32 *bwtype)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LINK_BW_SET);
- *bwtype = reg;
-}
-
-void exynos_dp_set_lane_count(struct exynos_dp_device *dp, u32 count)
-{
- u32 reg;
-
- reg = count;
- writel(reg, dp->reg_base + EXYNOS_DP_LANE_COUNT_SET);
-}
-
-void exynos_dp_get_lane_count(struct exynos_dp_device *dp, u32 *count)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LANE_COUNT_SET);
- *count = reg;
-}
-
-void exynos_dp_enable_enhanced_mode(struct exynos_dp_device *dp, bool enable)
-{
- u32 reg;
-
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- reg |= ENHANCED;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- reg &= ~ENHANCED;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- }
-}
-
-void exynos_dp_set_training_pattern(struct exynos_dp_device *dp,
- enum pattern_set pattern)
-{
- u32 reg;
-
- switch (pattern) {
- case PRBS7:
- reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_PRBS7;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- break;
- case D10_2:
- reg = SCRAMBLING_ENABLE | LINK_QUAL_PATTERN_SET_D10_2;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- break;
- case TRAINING_PTN1:
- reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN1;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- break;
- case TRAINING_PTN2:
- reg = SCRAMBLING_DISABLE | SW_TRAINING_PATTERN_SET_PTN2;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- break;
- case DP_NONE:
- reg = SCRAMBLING_ENABLE |
- LINK_QUAL_PATTERN_SET_DISABLE |
- SW_TRAINING_PATTERN_SET_NORMAL;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- break;
- default:
- break;
- }
-}
-
-void exynos_dp_set_lane0_pre_emphasis(struct exynos_dp_device *dp, u32 level)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
- reg &= ~PRE_EMPHASIS_SET_MASK;
- reg |= level << PRE_EMPHASIS_SET_SHIFT;
- writel(reg, dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane1_pre_emphasis(struct exynos_dp_device *dp, u32 level)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
- reg &= ~PRE_EMPHASIS_SET_MASK;
- reg |= level << PRE_EMPHASIS_SET_SHIFT;
- writel(reg, dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane2_pre_emphasis(struct exynos_dp_device *dp, u32 level)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
- reg &= ~PRE_EMPHASIS_SET_MASK;
- reg |= level << PRE_EMPHASIS_SET_SHIFT;
- writel(reg, dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane3_pre_emphasis(struct exynos_dp_device *dp, u32 level)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
- reg &= ~PRE_EMPHASIS_SET_MASK;
- reg |= level << PRE_EMPHASIS_SET_SHIFT;
- writel(reg, dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane0_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
-{
- u32 reg;
-
- reg = training_lane;
- writel(reg, dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane1_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
-{
- u32 reg;
-
- reg = training_lane;
- writel(reg, dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane2_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
-{
- u32 reg;
-
- reg = training_lane;
- writel(reg, dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
-}
-
-void exynos_dp_set_lane3_link_training(struct exynos_dp_device *dp,
- u32 training_lane)
-{
- u32 reg;
-
- reg = training_lane;
- writel(reg, dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
-}
-
-u32 exynos_dp_get_lane0_link_training(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN0_LINK_TRAINING_CTL);
- return reg;
-}
-
-u32 exynos_dp_get_lane1_link_training(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN1_LINK_TRAINING_CTL);
- return reg;
-}
-
-u32 exynos_dp_get_lane2_link_training(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN2_LINK_TRAINING_CTL);
- return reg;
-}
-
-u32 exynos_dp_get_lane3_link_training(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_LN3_LINK_TRAINING_CTL);
- return reg;
-}
-
-void exynos_dp_reset_macro(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_PHY_TEST);
- reg |= MACRO_RST;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_TEST);
-
- /* 10 us is the minimum reset time. */
- usleep_range(10, 20);
-
- reg &= ~MACRO_RST;
- writel(reg, dp->reg_base + EXYNOS_DP_PHY_TEST);
-}
-
-void exynos_dp_init_video(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = VSYNC_DET | VID_FORMAT_CHG | VID_CLK_CHG;
- writel(reg, dp->reg_base + EXYNOS_DP_COMMON_INT_STA_1);
-
- reg = 0x0;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_1);
-
- reg = CHA_CRI(4) | CHA_CTRL;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_2);
-
- reg = 0x0;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
-
- reg = VID_HRES_TH(2) | VID_VRES_TH(0);
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_8);
-}
-
-void exynos_dp_set_video_color_format(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- /* Configure the input color depth, color space, dynamic range */
- reg = (dp->video_info->dynamic_range << IN_D_RANGE_SHIFT) |
- (dp->video_info->color_depth << IN_BPC_SHIFT) |
- (dp->video_info->color_space << IN_COLOR_F_SHIFT);
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_2);
-
- /* Set Input Color YCbCr Coefficients to ITU601 or ITU709 */
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_3);
- reg &= ~IN_YC_COEFFI_MASK;
- if (dp->video_info->ycbcr_coeff)
- reg |= IN_YC_COEFFI_ITU709;
- else
- reg |= IN_YC_COEFFI_ITU601;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_3);
-}
-
-int exynos_dp_is_slave_video_stream_clock_on(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_1);
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_1);
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_1);
-
- if (!(reg & DET_STA)) {
- dev_dbg(dp->dev, "Input stream clock not detected.\n");
- return -EINVAL;
- }
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_2);
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_2);
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_2);
- dev_dbg(dp->dev, "wait SYS_CTL_2.\n");
-
- if (reg & CHA_STA) {
- dev_dbg(dp->dev, "Input stream clk is changing\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-void exynos_dp_set_video_cr_mn(struct exynos_dp_device *dp,
- enum clock_recovery_m_value_type type,
- u32 m_value,
- u32 n_value)
-{
- u32 reg;
-
- if (type == REGISTER_M) {
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- reg |= FIX_M_VID;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- reg = m_value & 0xff;
- writel(reg, dp->reg_base + EXYNOS_DP_M_VID_0);
- reg = (m_value >> 8) & 0xff;
- writel(reg, dp->reg_base + EXYNOS_DP_M_VID_1);
- reg = (m_value >> 16) & 0xff;
- writel(reg, dp->reg_base + EXYNOS_DP_M_VID_2);
-
- reg = n_value & 0xff;
- writel(reg, dp->reg_base + EXYNOS_DP_N_VID_0);
- reg = (n_value >> 8) & 0xff;
- writel(reg, dp->reg_base + EXYNOS_DP_N_VID_1);
- reg = (n_value >> 16) & 0xff;
- writel(reg, dp->reg_base + EXYNOS_DP_N_VID_2);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_4);
- reg &= ~FIX_M_VID;
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_4);
-
- writel(0x00, dp->reg_base + EXYNOS_DP_N_VID_0);
- writel(0x80, dp->reg_base + EXYNOS_DP_N_VID_1);
- writel(0x00, dp->reg_base + EXYNOS_DP_N_VID_2);
- }
-}
-
-void exynos_dp_set_video_timing_mode(struct exynos_dp_device *dp, u32 type)
-{
- u32 reg;
-
- if (type == VIDEO_TIMING_FROM_CAPTURE) {
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- reg &= ~FORMAT_SEL;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- reg |= FORMAT_SEL;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- }
-}
-
-void exynos_dp_enable_video_master(struct exynos_dp_device *dp, bool enable)
-{
- u32 reg;
-
- if (enable) {
- reg = readl(dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
- reg &= ~VIDEO_MODE_MASK;
- reg |= VIDEO_MASTER_MODE_EN | VIDEO_MODE_MASTER_MODE;
- writel(reg, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
- } else {
- reg = readl(dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
- reg &= ~VIDEO_MODE_MASK;
- reg |= VIDEO_MODE_SLAVE_MODE;
- writel(reg, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
- }
-}
-
-void exynos_dp_start_video(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
- reg |= VIDEO_EN;
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_1);
-}
-
-int exynos_dp_is_video_stream_on(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
- writel(reg, dp->reg_base + EXYNOS_DP_SYS_CTL_3);
-
- reg = readl(dp->reg_base + EXYNOS_DP_SYS_CTL_3);
- if (!(reg & STRM_VALID)) {
- dev_dbg(dp->dev, "Input video stream is not detected.\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-void exynos_dp_config_video_slave_mode(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_FUNC_EN_1);
- reg &= ~(MASTER_VID_FUNC_EN_N | SLAVE_VID_FUNC_EN_N);
- reg |= MASTER_VID_FUNC_EN_N;
- writel(reg, dp->reg_base + EXYNOS_DP_FUNC_EN_1);
-
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- reg &= ~INTERACE_SCAN_CFG;
- reg |= (dp->video_info->interlaced << 2);
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
-
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- reg &= ~VSYNC_POLARITY_CFG;
- reg |= (dp->video_info->v_sync_polarity << 1);
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
-
- reg = readl(dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
- reg &= ~HSYNC_POLARITY_CFG;
- reg |= (dp->video_info->h_sync_polarity << 0);
- writel(reg, dp->reg_base + EXYNOS_DP_VIDEO_CTL_10);
-
- reg = AUDIO_MODE_SPDIF_MODE | VIDEO_MODE_SLAVE_MODE;
- writel(reg, dp->reg_base + EXYNOS_DP_SOC_GENERAL_CTL);
-}
-
-void exynos_dp_enable_scrambling(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- reg &= ~SCRAMBLING_DISABLE;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
-}
-
-void exynos_dp_disable_scrambling(struct exynos_dp_device *dp)
-{
- u32 reg;
-
- reg = readl(dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
- reg |= SCRAMBLING_DISABLE;
- writel(reg, dp->reg_base + EXYNOS_DP_TRAINING_PTN_SET);
-}
diff --git a/include/drm/bridge/analogix_dp.h b/include/drm/bridge/analogix_dp.h
new file mode 100644
index 0000000..8b4ffad
--- /dev/null
+++ b/include/drm/bridge/analogix_dp.h
@@ -0,0 +1,24 @@
+#ifndef _ANALOGIX_DP_H_
+#define _ANALOGIX_DP_H_
+
+#include <drm/drm_crtc.h>
+
+struct analogix_dp_plat_data {
+ struct drm_panel *panel;
+
+ int (*power_on)(struct analogix_dp_plat_data *);
+ int (*power_off)(struct analogix_dp_plat_data *);
+ int (*attach)(struct analogix_dp_plat_data *, struct drm_bridge *);
+ int (*get_modes)(struct analogix_dp_plat_data *,
+ struct drm_connector *);
+};
+
+int analogix_dp_resume(struct device *dev);
+int analogix_dp_suspend(struct device *dev);
+
+int analogix_dp_bind(struct device *dev, struct drm_device *drm_dev,
+ struct drm_encoder *encoder,
+ struct analogix_dp_plat_data *plat_data);
+void analogix_dp_unbind(struct device *dev, struct device *master, void *data);
+
+#endif /* _ANALOGIX_DP_H_ */
--
2.1.2
--
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