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Message-Id: <1441087757-25642-1-git-send-email-ykk@rock-chips.com>
Date:	Tue,  1 Sep 2015 14:09:17 +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 12/16] drm: bridge: analogix/dp: add some rk3288 special registers setting

RK3288 need some special registers setting, we can separate
them out by the dev_type of plat_data.

Signed-off-by: Yakir Yang <ykk@...k-chips.com>
---
Changes in v4: None
Changes in v3: None
Changes in v2:
- Fix compile failed dut to phy_pd_addr variable misspell error

 drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c | 76 ++++++++++++++---------
 drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h | 12 ++++
 2 files changed, 60 insertions(+), 28 deletions(-)

diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
index 6a643be..15346fe 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c
@@ -15,6 +15,8 @@
 #include <linux/delay.h>
 #include <linux/gpio.h>
 
+#include <drm/bridge/analogix_dp.h>
+
 #include "analogix_dp_core.h"
 #include "analogix_dp_reg.h"
 
@@ -72,6 +74,14 @@ void analogix_dp_init_analog_param(struct analogix_dp_device *dp)
 	reg = SEL_24M | TX_DVDD_BIT_1_0625V;
 	writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_2);
 
+	if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP)) {
+		writel(REF_CLK_24M, dp->reg_base + ANALOGIX_DP_PLL_REG_1);
+		writel(0x95, dp->reg_base + ANALOGIX_DP_PLL_REG_2);
+		writel(0x40, dp->reg_base + ANALOGIX_DP_PLL_REG_3);
+		writel(0x58, dp->reg_base + ANALOGIX_DP_PLL_REG_4);
+		writel(0x22, dp->reg_base + ANALOGIX_DP_PLL_REG_5);
+	}
+
 	reg = DRIVE_DVDD_BIT_1_0625V | VCO_BIT_600_MICRO;
 	writel(reg, dp->reg_base + ANALOGIX_DP_ANALOG_CTL_3);
 
@@ -206,81 +216,85 @@ void analogix_dp_set_analog_power_down(struct analogix_dp_device *dp,
 				       bool enable)
 {
 	u32 reg;
+	u32 phy_pd_addr = ANALOGIX_DP_PHY_PD;
+
+	if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP))
+		phy_pd_addr = ANALOGIX_DP_PD;
 
 	switch (block) {
 	case AUX_BLOCK:
 		if (enable) {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg |= AUX_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg &= ~AUX_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		}
 		break;
 	case CH0_BLOCK:
 		if (enable) {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg |= CH0_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg &= ~CH0_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		}
 		break;
 	case CH1_BLOCK:
 		if (enable) {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg |= CH1_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg &= ~CH1_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		}
 		break;
 	case CH2_BLOCK:
 		if (enable) {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg |= CH2_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg &= ~CH2_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		}
 		break;
 	case CH3_BLOCK:
 		if (enable) {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg |= CH3_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg &= ~CH3_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		}
 		break;
 	case ANALOG_TOTAL:
 		if (enable) {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg |= DP_PHY_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			reg = readl(dp->reg_base + ANALOGIX_DP_PHY_PD);
+			reg = readl(dp->reg_base + phy_pd_addr);
 			reg &= ~DP_PHY_PD;
-			writel(reg, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		}
 		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);
+			writel(reg, dp->reg_base + phy_pd_addr);
 		} else {
-			writel(0x00, dp->reg_base + ANALOGIX_DP_PHY_PD);
+			writel(0x00, dp->reg_base + phy_pd_addr);
 		}
 		break;
 	default:
@@ -399,8 +413,14 @@ void analogix_dp_init_aux(struct analogix_dp_device *dp)
 	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;
+	if (dp->plat_data && (dp->plat_data->dev_type == RK3288_DP))
+		reg = AUX_BIT_PERIOD_EXPECTED_DELAY(0) |
+		      AUX_HW_RETRY_COUNT_SEL(3) |
+		      AUX_HW_RETRY_INTERVAL_600_MICROSECONDS;
+	else
+		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 */
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
index 2d878fd..21330aa 100644
--- a/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
+++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_reg.h
@@ -22,6 +22,14 @@
 #define ANALOGIX_DP_VIDEO_CTL_8			0x3C
 #define ANALOGIX_DP_VIDEO_CTL_10			0x44
 
+#define ANALOGIX_DP_PLL_REG_1			0xfc
+#define ANALOGIX_DP_PLL_REG_2			0x9e4
+#define ANALOGIX_DP_PLL_REG_3			0x9e8
+#define ANALOGIX_DP_PLL_REG_4			0x9ec
+#define ANALOGIX_DP_PLL_REG_5			0xa00
+
+#define ANALOGIX_DP_PD                          0x12c
+
 #define ANALOGIX_DP_LANE_MAP			0x35C
 
 #define ANALOGIX_DP_ANALOG_CTL_1			0x370
@@ -154,6 +162,10 @@
 #define VSYNC_POLARITY_CFG			(0x1 << 1)
 #define HSYNC_POLARITY_CFG			(0x1 << 0)
 
+/* ANALOGIX_DP_PLL_REG_1 */
+#define REF_CLK_24M				(0x1 << 1)
+#define REF_CLK_27M				(0x0 << 1)
+
 /* ANALOGIX_DP_LANE_MAP */
 #define LANE3_MAP_LOGIC_LANE_0			(0x0 << 6)
 #define LANE3_MAP_LOGIC_LANE_1			(0x1 << 6)
-- 
2.1.2


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