| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20241013212402.15624-3-danila@jiaxyga.com>
Date: Mon, 14 Oct 2024 00:24:02 +0300
From: Danila Tikhonov <danila@...xyga.com>
To: neil.armstrong@...aro.org,
quic_jesszhan@...cinc.com,
maarten.lankhorst@...ux.intel.com,
mripard@...nel.org,
tzimmermann@...e.de,
airlied@...il.com,
simona@...ll.ch,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org
Cc: dri-devel@...ts.freedesktop.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux@...nlining.org,
danila@...xyga.com
Subject: [PATCH 2/2] drm/panel: Add Samsung AMS581VF01 panel driver
Add the driver for Samsung AMS581VF01 SOFEF01-based 5.81" FHD Plus CMD
mode OLED panel support found in Google Pixel 4a (sm7150-google-sunfish)
Signed-off-by: Danila Tikhonov <danila@...xyga.com>
---
drivers/gpu/drm/panel/Kconfig | 9 +
drivers/gpu/drm/panel/Makefile | 1 +
.../gpu/drm/panel/panel-samsung-ams581vf01.c | 283 ++++++++++++++++++
3 files changed, 293 insertions(+)
create mode 100644 drivers/gpu/drm/panel/panel-samsung-ams581vf01.c
diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
index ddfaa99ea9dd..f637dcc7a886 100644
--- a/drivers/gpu/drm/panel/Kconfig
+++ b/drivers/gpu/drm/panel/Kconfig
@@ -614,6 +614,15 @@ config DRM_PANEL_RONBO_RB070D30
Say Y here if you want to enable support for Ronbo Electronics
RB070D30 1024x600 DSI panel.
+config DRM_PANEL_SAMSUNG_AMS581VF01
+ tristate "Samsung AMS581VF01 panel"
+ depends on OF
+ depends on DRM_MIPI_DSI
+ depends on BACKLIGHT_CLASS_DEVICE
+ help
+ Say Y or M here if you want to enable support for the
+ Samsung AMS581VF01 FHD Plus (2340x1080@...z) CMD mode panel.
+
config DRM_PANEL_SAMSUNG_AMS639RQ08
tristate "Samsung AMS639RQ08 panel"
depends on OF
diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
index 4b5eaf111676..4db02c2411ae 100644
--- a/drivers/gpu/drm/panel/Makefile
+++ b/drivers/gpu/drm/panel/Makefile
@@ -62,6 +62,7 @@ obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM692E5) += panel-raydium-rm692e5.o
obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM69380) += panel-raydium-rm69380.o
obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
+obj-$(CONFIG_DRM_PANEL_SAMSUNG_AMS581VF01) += panel-samsung-ams581vf01.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_AMS639RQ08) += panel-samsung-ams639rq08.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_ATNA33XC20) += panel-samsung-atna33xc20.o
obj-$(CONFIG_DRM_PANEL_SAMSUNG_DB7430) += panel-samsung-db7430.o
diff --git a/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c b/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c
new file mode 100644
index 000000000000..cf6186312252
--- /dev/null
+++ b/drivers/gpu/drm/panel/panel-samsung-ams581vf01.c
@@ -0,0 +1,283 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2024, Danila Tikhonov <danila@...xyga.com>
+ */
+
+#include <linux/backlight.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/regulator/consumer.h>
+
+#include <video/mipi_display.h>
+
+#include <drm/drm_mipi_dsi.h>
+#include <drm/drm_modes.h>
+#include <drm/drm_panel.h>
+#include <drm/drm_probe_helper.h>
+
+/* Manufacturer Command Set */
+#define MCS_ACCESS_PROT_OFF 0xb0
+#define MCS_PASSWD 0xf0
+
+struct ams581vf01 {
+ struct drm_panel panel;
+ struct mipi_dsi_device *dsi;
+ struct gpio_desc *reset_gpio;
+ struct regulator_bulk_data *supplies;
+};
+
+static const struct regulator_bulk_data ams581vf01_supplies[] = {
+ { .supply = "vdd3p3" },
+ { .supply = "vddio" },
+ { .supply = "vsn" },
+ { .supply = "vsp" },
+};
+
+static inline struct ams581vf01 *to_ams581vf01(struct drm_panel *panel)
+{
+ return container_of(panel, struct ams581vf01, panel);
+}
+
+static void ams581vf01_reset(struct ams581vf01 *ctx)
+{
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ usleep_range(10000, 11000);
+ gpiod_set_value_cansleep(ctx->reset_gpio, 0);
+ usleep_range(10000, 11000);
+}
+
+static int ams581vf01_on(struct ams581vf01 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
+
+ /* Sleep Out, Wait 10ms */
+ mipi_dsi_dcs_exit_sleep_mode_multi(&dsi_ctx);
+ usleep_range(10000, 11000);
+
+ /* TE On */
+ mipi_dsi_dcs_set_tear_on_multi(&dsi_ctx, MIPI_DSI_DCS_TEAR_MODE_VBLANK);
+
+ /* MIC Setting */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0x5a, 0x5a); /* Unlock */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xeb, 0x17,
+ 0x41, 0x92,
+ 0x0e, 0x10,
+ 0x82, 0x5a);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0xa5, 0xa5); /* Lock */
+
+ /* Column & Page Address Setting */
+ mipi_dsi_dcs_set_column_address_multi(&dsi_ctx, 0x0000, 0x0437);
+ mipi_dsi_dcs_set_page_address_multi(&dsi_ctx, 0x0000, 0x0923);
+
+ /* Brightness Setting */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x20);
+
+ /* Horizontal & Vertical sync Setting */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0x5a, 0x5a); /* Unlock */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x09);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xe8, 0x11, 0x30);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0xa5, 0xa5); /* Lock */
+ mipi_dsi_msleep(&dsi_ctx, 110);
+
+ /* Display On */
+ mipi_dsi_dcs_set_display_on_multi(&dsi_ctx);
+
+ return dsi_ctx.accum_err;
+}
+
+static void ams581vf01_off(struct ams581vf01 *ctx)
+{
+ struct mipi_dsi_device *dsi = ctx->dsi;
+ struct mipi_dsi_multi_context dsi_ctx = { .dsi = dsi };
+
+ /* Display Off & Sleep In */
+ mipi_dsi_dcs_set_display_off_multi(&dsi_ctx);
+ mipi_dsi_msleep(&dsi_ctx, 20);
+ mipi_dsi_dcs_enter_sleep_mode_multi(&dsi_ctx);
+
+ /* VCI operating mode change */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0x5a, 0x5a); /* Unlock */
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_ACCESS_PROT_OFF, 0x05);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, 0xf4, 0x01);
+ mipi_dsi_dcs_write_seq_multi(&dsi_ctx, MCS_PASSWD, 0xa5, 0xa5); /* Lock */
+
+ mipi_dsi_msleep(&dsi_ctx, 120);
+}
+
+static int ams581vf01_prepare(struct drm_panel *panel)
+{
+ struct ams581vf01 *ctx = to_ams581vf01(panel);
+ int ret;
+
+ ret = regulator_bulk_enable(ARRAY_SIZE(ams581vf01_supplies),
+ ctx->supplies);
+ if (ret < 0)
+ return ret;
+
+ ams581vf01_reset(ctx);
+
+ ret = ams581vf01_on(ctx);
+ if (ret < 0) {
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(ams581vf01_supplies),
+ ctx->supplies);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int ams581vf01_unprepare(struct drm_panel *panel)
+{
+ struct ams581vf01 *ctx = to_ams581vf01(panel);
+
+ ams581vf01_off(ctx);
+
+ gpiod_set_value_cansleep(ctx->reset_gpio, 1);
+ regulator_bulk_disable(ARRAY_SIZE(ams581vf01_supplies),
+ ctx->supplies);
+
+ return 0;
+}
+
+static const struct drm_display_mode ams581vf01_mode = {
+ .clock = (1080 + 32 + 73 + 98) * (2340 + 8 + 1 + 8) * 60 / 1000,
+ .hdisplay = 1080,
+ .hsync_start = 1080 + 32,
+ .hsync_end = 1080 + 32 + 73,
+ .htotal = 1080 + 32 + 73 + 98,
+ .vdisplay = 2340,
+ .vsync_start = 2340 + 8,
+ .vsync_end = 2340 + 8 + 1,
+ .vtotal = 2340 + 8 + 1 + 8,
+ .width_mm = 62,
+ .height_mm = 134,
+ .type = DRM_MODE_TYPE_DRIVER,
+};
+
+static int ams581vf01_get_modes(struct drm_panel *panel,
+ struct drm_connector *connector)
+{
+ return drm_connector_helper_get_modes_fixed(connector, &ams581vf01_mode);
+}
+
+static const struct drm_panel_funcs ams581vf01_panel_funcs = {
+ .prepare = ams581vf01_prepare,
+ .unprepare = ams581vf01_unprepare,
+ .get_modes = ams581vf01_get_modes,
+};
+
+static int ams581vf01_bl_update_status(struct backlight_device *bl)
+{
+ struct mipi_dsi_device *dsi = bl_get_data(bl);
+ u16 brightness = backlight_get_brightness(bl);
+ int ret;
+
+ dsi->mode_flags &= ~MIPI_DSI_MODE_LPM;
+
+ ret = mipi_dsi_dcs_set_display_brightness_large(dsi, brightness);
+ if (ret < 0)
+ return ret;
+
+ dsi->mode_flags |= MIPI_DSI_MODE_LPM;
+
+ return 0;
+}
+
+static const struct backlight_ops ams581vf01_bl_ops = {
+ .update_status = ams581vf01_bl_update_status,
+};
+
+static struct backlight_device *
+ams581vf01_create_backlight(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ const struct backlight_properties props = {
+ .type = BACKLIGHT_RAW,
+ .brightness = 511,
+ .max_brightness = 1023,
+ };
+
+ return devm_backlight_device_register(dev, dev_name(dev), dev, dsi,
+ &ams581vf01_bl_ops, &props);
+}
+
+static int ams581vf01_probe(struct mipi_dsi_device *dsi)
+{
+ struct device *dev = &dsi->dev;
+ struct ams581vf01 *ctx;
+ int ret;
+
+ ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+
+ ret = devm_regulator_bulk_get_const(&dsi->dev,
+ ARRAY_SIZE(ams581vf01_supplies),
+ ams581vf01_supplies,
+ &ctx->supplies);
+ if (ret < 0)
+ return dev_err_probe(dev, ret, "Failed to get regulators\n");
+
+ ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
+ if (IS_ERR(ctx->reset_gpio))
+ return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio),
+ "Failed to get reset-gpios\n");
+
+ ctx->dsi = dsi;
+ mipi_dsi_set_drvdata(dsi, ctx);
+
+ dsi->lanes = 4;
+ dsi->format = MIPI_DSI_FMT_RGB888;
+ dsi->mode_flags = MIPI_DSI_MODE_VIDEO_BURST |
+ MIPI_DSI_CLOCK_NON_CONTINUOUS | MIPI_DSI_MODE_LPM;
+
+ drm_panel_init(&ctx->panel, dev, &ams581vf01_panel_funcs,
+ DRM_MODE_CONNECTOR_DSI);
+ ctx->panel.prepare_prev_first = true;
+
+ ctx->panel.backlight = ams581vf01_create_backlight(dsi);
+ if (IS_ERR(ctx->panel.backlight))
+ return dev_err_probe(dev, PTR_ERR(ctx->panel.backlight),
+ "Failed to create backlight\n");
+
+ drm_panel_add(&ctx->panel);
+
+ ret = devm_mipi_dsi_attach(dev, dsi);
+ if (ret < 0) {
+ drm_panel_remove(&ctx->panel);
+ return dev_err_probe(dev, ret, "Failed to attach to DSI host\n");
+ }
+
+ return 0;
+}
+
+static void ams581vf01_remove(struct mipi_dsi_device *dsi)
+{
+ struct ams581vf01 *ctx = mipi_dsi_get_drvdata(dsi);
+
+ drm_panel_remove(&ctx->panel);
+}
+
+static const struct of_device_id ams581vf01_of_match[] = {
+ { .compatible = "samsung,ams581vf01" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, ams581vf01_of_match);
+
+static struct mipi_dsi_driver ams581vf01_driver = {
+ .probe = ams581vf01_probe,
+ .remove = ams581vf01_remove,
+ .driver = {
+ .name = "panel-samsung-ams581vf01",
+ .of_match_table = ams581vf01_of_match,
+ },
+};
+module_mipi_dsi_driver(ams581vf01_driver);
+
+MODULE_AUTHOR("Danila Tikhonov <danila@...xyga.com>");
+MODULE_DESCRIPTION("DRM driver for SAMSUNG AMS581VF01 cmd mode dsi panel");
+MODULE_LICENSE("GPL");
--
2.47.0
Powered by blists - more mailing lists