kernel 5.10.6

1 files changed, 0 insertions, 948 deletions

diff --git a/SOURCES/0001-drm-panel-rocktech-jh057n00900-Rename-the-driver-to-.patch b/SOURCES/0001-drm-panel-rocktech-jh057n00900-Rename-the-driver-to-.patch
deleted file mode 100644
index d78bf56..0000000
--- a/SOURCES/0001-drm-panel-rocktech-jh057n00900-Rename-the-driver-to-.patch
+++ /dev/null
@@ -1,948 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Ondrej Jirman <megous@megous.com>
-Date: Fri, 26 Jun 2020 02:55:52 +0200
-Subject: [PATCH] drm/panel: rocktech-jh057n00900: Rename the driver to st7703
-
-This rename is done so that the driver matches the name of the
-display controller and in preparation for adding support for more
-panels to the driver.
-
-This is just a basic file rename, with no code changes.
-
-Signed-off-by: Ondrej Jirman <megous@megous.com>
----
- drivers/gpu/drm/panel/Kconfig                 |  26 +-
- drivers/gpu/drm/panel/Makefile                |   2 +-
- .../drm/panel/panel-rocktech-jh057n00900.c    | 424 ------------------
- drivers/gpu/drm/panel/panel-sitronix-st7703.c | 424 ++++++++++++++++++
- 4 files changed, 438 insertions(+), 438 deletions(-)
- delete mode 100644 drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
- create mode 100644 drivers/gpu/drm/panel/panel-sitronix-st7703.c
-
-diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig
-index 39055c1f0e2f..de2f2a452be5 100644
---- a/drivers/gpu/drm/panel/Kconfig
-+++ b/drivers/gpu/drm/panel/Kconfig
-@@ -283,19 +283,6 @@ config DRM_PANEL_RAYDIUM_RM68200
- 	  Say Y here if you want to enable support for Raydium RM68200
- 	  720x1280 DSI video mode panel.
-
--config DRM_PANEL_ROCKTECH_JH057N00900
--	tristate "Rocktech JH057N00900 MIPI touchscreen panel"
--	depends on OF
--	depends on DRM_MIPI_DSI
--	depends on BACKLIGHT_CLASS_DEVICE
--	help
--	  Say Y here if you want to enable support for Rocktech JH057N00900
--	  MIPI DSI panel as e.g. used in the Librem 5 devkit. It has a
--	  resolution of 720x1440 pixels, a built in backlight and touch
--	  controller.
--	  Touch input support is provided by the goodix driver and needs to be
--	  selected separately.
--
- config DRM_PANEL_RONBO_RB070D30
- 	tristate "Ronbo Electronics RB070D30 panel"
- 	depends on OF
-@@ -395,6 +382,19 @@ config DRM_PANEL_SITRONIX_ST7701
- 	  ST7701 controller for 480X864 LCD panels with MIPI/RGB/SPI
- 	  system interfaces.
-
-+config DRM_PANEL_SITRONIX_ST7703
-+	tristate "Sitronix ST7703 based MIPI touchscreen panels"
-+	depends on OF
-+	depends on DRM_MIPI_DSI
-+	depends on BACKLIGHT_CLASS_DEVICE
-+	help
-+	  Say Y here if you want to enable support for Sitronix ST7703 based
-+	  panels, souch as Rocktech JH057N00900 MIPI DSI panel as e.g. used in
-+	  the Librem 5 devkit. It has a resolution of 720x1440 pixels, a built
-+	  in backlight and touch controller.
-+	  Touch input support is provided by the goodix driver and needs to be
-+	  selected separately.
-+
- config DRM_PANEL_SITRONIX_ST7789V
- 	tristate "Sitronix ST7789V panel"
- 	depends on OF && SPI
-diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile
-index de74f282c433..e45ceac6286f 100644
---- a/drivers/gpu/drm/panel/Makefile
-+++ b/drivers/gpu/drm/panel/Makefile
-@@ -27,7 +27,6 @@ obj-$(CONFIG_DRM_PANEL_PANASONIC_VVX10F034N00) += panel-panasonic-vvx10f034n00.o
- obj-$(CONFIG_DRM_PANEL_RASPBERRYPI_TOUCHSCREEN) += panel-raspberrypi-touchscreen.o
- obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM67191) += panel-raydium-rm67191.o
- obj-$(CONFIG_DRM_PANEL_RAYDIUM_RM68200) += panel-raydium-rm68200.o
--obj-$(CONFIG_DRM_PANEL_ROCKTECH_JH057N00900) += panel-rocktech-jh057n00900.o
- obj-$(CONFIG_DRM_PANEL_RONBO_RB070D30) += panel-ronbo-rb070d30.o
- obj-$(CONFIG_DRM_PANEL_SAMSUNG_LD9040) += panel-samsung-ld9040.o
- obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6D16D0) += panel-samsung-s6d16d0.o
-@@ -41,6 +40,7 @@ obj-$(CONFIG_DRM_PANEL_SHARP_LQ101R1SX01) += panel-sharp-lq101r1sx01.o
- obj-$(CONFIG_DRM_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
- obj-$(CONFIG_DRM_PANEL_SHARP_LS043T1LE01) += panel-sharp-ls043t1le01.o
- obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7701) += panel-sitronix-st7701.o
-+obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
- obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
- obj-$(CONFIG_DRM_PANEL_SONY_ACX424AKP) += panel-sony-acx424akp.o
- obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
-diff --git a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
-deleted file mode 100644
-index 38ff742bc120..000000000000
---- a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c
-+++ /dev/null
-@@ -1,424 +0,0 @@
--// SPDX-License-Identifier: GPL-2.0
--/*
-- * Rockteck jh057n00900 5.5" MIPI-DSI panel driver
-- *
-- * Copyright (C) Purism SPC 2019
-- */
--
--#include <linux/debugfs.h>
--#include <linux/delay.h>
--#include <linux/gpio/consumer.h>
--#include <linux/media-bus-format.h>
--#include <linux/mod_devicetable.h>
--#include <linux/module.h>
--#include <linux/regulator/consumer.h>
--
--#include <video/display_timing.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_print.h>
--
--#define DRV_NAME "panel-rocktech-jh057n00900"
--
--/* Manufacturer specific Commands send via DSI */
--#define ST7703_CMD_ALL_PIXEL_OFF 0x22
--#define ST7703_CMD_ALL_PIXEL_ON	 0x23
--#define ST7703_CMD_SETDISP	 0xB2
--#define ST7703_CMD_SETRGBIF	 0xB3
--#define ST7703_CMD_SETCYC	 0xB4
--#define ST7703_CMD_SETBGP	 0xB5
--#define ST7703_CMD_SETVCOM	 0xB6
--#define ST7703_CMD_SETOTP	 0xB7
--#define ST7703_CMD_SETPOWER_EXT	 0xB8
--#define ST7703_CMD_SETEXTC	 0xB9
--#define ST7703_CMD_SETMIPI	 0xBA
--#define ST7703_CMD_SETVDC	 0xBC
--#define ST7703_CMD_UNKNOWN0	 0xBF
--#define ST7703_CMD_SETSCR	 0xC0
--#define ST7703_CMD_SETPOWER	 0xC1
--#define ST7703_CMD_SETPANEL	 0xCC
--#define ST7703_CMD_SETGAMMA	 0xE0
--#define ST7703_CMD_SETEQ	 0xE3
--#define ST7703_CMD_SETGIP1	 0xE9
--#define ST7703_CMD_SETGIP2	 0xEA
--
--struct jh057n {
--	struct device *dev;
--	struct drm_panel panel;
--	struct gpio_desc *reset_gpio;
--	struct regulator *vcc;
--	struct regulator *iovcc;
--	bool prepared;
--
--	struct dentry *debugfs;
--};
--
--static inline struct jh057n *panel_to_jh057n(struct drm_panel *panel)
--{
--	return container_of(panel, struct jh057n, panel);
--}
--
--#define dsi_generic_write_seq(dsi, seq...) do {				\
--		static const u8 d[] = { seq };				\
--		int ret;						\
--		ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d));	\
--		if (ret < 0)						\
--			return ret;					\
--	} while (0)
--
--static int jh057n_init_sequence(struct jh057n *ctx)
--{
--	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
--	struct device *dev = ctx->dev;
--	int ret;
--
--	/*
--	 * Init sequence was supplied by the panel vendor. Most of the commands
--	 * resemble the ST7703 but the number of parameters often don't match
--	 * so it's likely a clone.
--	 */
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETEXTC,
--			      0xF1, 0x12, 0x83);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETRGBIF,
--			      0x10, 0x10, 0x05, 0x05, 0x03, 0xFF, 0x00, 0x00,
--			      0x00, 0x00);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETSCR,
--			      0x73, 0x73, 0x50, 0x50, 0x00, 0x00, 0x08, 0x70,
--			      0x00);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETVDC, 0x4E);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0B);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETDISP, 0xF0, 0x12, 0x30);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETEQ,
--			      0x07, 0x07, 0x0B, 0x0B, 0x03, 0x0B, 0x00, 0x00,
--			      0x00, 0x00, 0xFF, 0x00, 0xC0, 0x10);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETBGP, 0x08, 0x08);
--	msleep(20);
--
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETVCOM, 0x3F, 0x3F);
--	dsi_generic_write_seq(dsi, ST7703_CMD_UNKNOWN0, 0x02, 0x11, 0x00);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP1,
--			      0x82, 0x10, 0x06, 0x05, 0x9E, 0x0A, 0xA5, 0x12,
--			      0x31, 0x23, 0x37, 0x83, 0x04, 0xBC, 0x27, 0x38,
--			      0x0C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x0C, 0x00,
--			      0x03, 0x00, 0x00, 0x00, 0x75, 0x75, 0x31, 0x88,
--			      0x88, 0x88, 0x88, 0x88, 0x88, 0x13, 0x88, 0x64,
--			      0x64, 0x20, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
--			      0x02, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
--			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP2,
--			      0x02, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
--			      0x00, 0x00, 0x00, 0x00, 0x02, 0x46, 0x02, 0x88,
--			      0x88, 0x88, 0x88, 0x88, 0x88, 0x64, 0x88, 0x13,
--			      0x57, 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
--			      0x75, 0x88, 0x23, 0x14, 0x00, 0x00, 0x02, 0x00,
--			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
--			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0A,
--			      0xA5, 0x00, 0x00, 0x00, 0x00);
--	dsi_generic_write_seq(dsi, ST7703_CMD_SETGAMMA,
--			      0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41, 0x37,
--			      0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10, 0x11,
--			      0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
--			      0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
--			      0x11, 0x18);
--	msleep(20);
--
--	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
--	if (ret < 0) {
--		DRM_DEV_ERROR(dev, "Failed to exit sleep mode: %d\n", ret);
--		return ret;
--	}
--	/* Panel is operational 120 msec after reset */
--	msleep(60);
--	ret = mipi_dsi_dcs_set_display_on(dsi);
--	if (ret)
--		return ret;
--
--	DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done\n");
--	return 0;
--}
--
--static int jh057n_enable(struct drm_panel *panel)
--{
--	struct jh057n *ctx = panel_to_jh057n(panel);
--	int ret;
--
--	ret = jh057n_init_sequence(ctx);
--	if (ret < 0) {
--		DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed: %d\n",
--			      ret);
--		return ret;
--	}
--
--	return 0;
--}
--
--static int jh057n_disable(struct drm_panel *panel)
--{
--	struct jh057n *ctx = panel_to_jh057n(panel);
--	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
--
--	return mipi_dsi_dcs_set_display_off(dsi);
--}
--
--static int jh057n_unprepare(struct drm_panel *panel)
--{
--	struct jh057n *ctx = panel_to_jh057n(panel);
--
--	if (!ctx->prepared)
--		return 0;
--
--	regulator_disable(ctx->iovcc);
--	regulator_disable(ctx->vcc);
--	ctx->prepared = false;
--
--	return 0;
--}
--
--static int jh057n_prepare(struct drm_panel *panel)
--{
--	struct jh057n *ctx = panel_to_jh057n(panel);
--	int ret;
--
--	if (ctx->prepared)
--		return 0;
--
--	DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel\n");
--	ret = regulator_enable(ctx->vcc);
--	if (ret < 0) {
--		DRM_DEV_ERROR(ctx->dev,
--			      "Failed to enable vcc supply: %d\n", ret);
--		return ret;
--	}
--	ret = regulator_enable(ctx->iovcc);
--	if (ret < 0) {
--		DRM_DEV_ERROR(ctx->dev,
--			      "Failed to enable iovcc supply: %d\n", ret);
--		goto disable_vcc;
--	}
--
--	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
--	usleep_range(20, 40);
--	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
--	msleep(20);
--
--	ctx->prepared = true;
--
--	return 0;
--
--disable_vcc:
--	regulator_disable(ctx->vcc);
--	return ret;
--}
--
--static const struct drm_display_mode default_mode = {
--	.hdisplay    = 720,
--	.hsync_start = 720 + 90,
--	.hsync_end   = 720 + 90 + 20,
--	.htotal	     = 720 + 90 + 20 + 20,
--	.vdisplay    = 1440,
--	.vsync_start = 1440 + 20,
--	.vsync_end   = 1440 + 20 + 4,
--	.vtotal	     = 1440 + 20 + 4 + 12,
--	.vrefresh    = 60,
--	.clock	     = 75276,
--	.flags	     = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
--	.width_mm    = 65,
--	.height_mm   = 130,
--};
--
--static int jh057n_get_modes(struct drm_panel *panel,
--			    struct drm_connector *connector)
--{
--	struct jh057n *ctx = panel_to_jh057n(panel);
--	struct drm_display_mode *mode;
--
--	mode = drm_mode_duplicate(connector->dev, &default_mode);
--	if (!mode) {
--		DRM_DEV_ERROR(ctx->dev, "Failed to add mode %ux%u@%u\n",
--			      default_mode.hdisplay, default_mode.vdisplay,
--			      default_mode.vrefresh);
--		return -ENOMEM;
--	}
--
--	drm_mode_set_name(mode);
--
--	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
--	connector->display_info.width_mm = mode->width_mm;
--	connector->display_info.height_mm = mode->height_mm;
--	drm_mode_probed_add(connector, mode);
--
--	return 1;
--}
--
--static const struct drm_panel_funcs jh057n_drm_funcs = {
--	.disable   = jh057n_disable,
--	.unprepare = jh057n_unprepare,
--	.prepare   = jh057n_prepare,
--	.enable	   = jh057n_enable,
--	.get_modes = jh057n_get_modes,
--};
--
--static int allpixelson_set(void *data, u64 val)
--{
--	struct jh057n *ctx = data;
--	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
--
--	DRM_DEV_DEBUG_DRIVER(ctx->dev, "Setting all pixels on\n");
--	dsi_generic_write_seq(dsi, ST7703_CMD_ALL_PIXEL_ON);
--	msleep(val * 1000);
--	/* Reset the panel to get video back */
--	drm_panel_disable(&ctx->panel);
--	drm_panel_unprepare(&ctx->panel);
--	drm_panel_prepare(&ctx->panel);
--	drm_panel_enable(&ctx->panel);
--
--	return 0;
--}
--
--DEFINE_SIMPLE_ATTRIBUTE(allpixelson_fops, NULL,
--			allpixelson_set, "%llu\n");
--
--static void jh057n_debugfs_init(struct jh057n *ctx)
--{
--	ctx->debugfs = debugfs_create_dir(DRV_NAME, NULL);
--
--	debugfs_create_file("allpixelson", 0600, ctx->debugfs, ctx,
--			    &allpixelson_fops);
--}
--
--static void jh057n_debugfs_remove(struct jh057n *ctx)
--{
--	debugfs_remove_recursive(ctx->debugfs);
--	ctx->debugfs = NULL;
--}
--
--static int jh057n_probe(struct mipi_dsi_device *dsi)
--{
--	struct device *dev = &dsi->dev;
--	struct jh057n *ctx;
--	int ret;
--
--	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
--	if (!ctx)
--		return -ENOMEM;
--
--	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
--	if (IS_ERR(ctx->reset_gpio)) {
--		DRM_DEV_ERROR(dev, "cannot get reset gpio\n");
--		return PTR_ERR(ctx->reset_gpio);
--	}
--
--	mipi_dsi_set_drvdata(dsi, ctx);
--
--	ctx->dev = dev;
--
--	dsi->lanes = 4;
--	dsi->format = MIPI_DSI_FMT_RGB888;
--	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
--		MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
--
--	ctx->vcc = devm_regulator_get(dev, "vcc");
--	if (IS_ERR(ctx->vcc)) {
--		ret = PTR_ERR(ctx->vcc);
--		if (ret != -EPROBE_DEFER)
--			DRM_DEV_ERROR(dev,
--				      "Failed to request vcc regulator: %d\n",
--				      ret);
--		return ret;
--	}
--	ctx->iovcc = devm_regulator_get(dev, "iovcc");
--	if (IS_ERR(ctx->iovcc)) {
--		ret = PTR_ERR(ctx->iovcc);
--		if (ret != -EPROBE_DEFER)
--			DRM_DEV_ERROR(dev,
--				      "Failed to request iovcc regulator: %d\n",
--				      ret);
--		return ret;
--	}
--
--	drm_panel_init(&ctx->panel, dev, &jh057n_drm_funcs,
--		       DRM_MODE_CONNECTOR_DSI);
--
--	ret = drm_panel_of_backlight(&ctx->panel);
--	if (ret)
--		return ret;
--
--	drm_panel_add(&ctx->panel);
--
--	ret = mipi_dsi_attach(dsi);
--	if (ret < 0) {
--		DRM_DEV_ERROR(dev,
--			      "mipi_dsi_attach failed (%d). Is host ready?\n",
--			      ret);
--		drm_panel_remove(&ctx->panel);
--		return ret;
--	}
--
--	DRM_DEV_INFO(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",
--		     default_mode.hdisplay, default_mode.vdisplay,
--		     default_mode.vrefresh,
--		     mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
--
--	jh057n_debugfs_init(ctx);
--	return 0;
--}
--
--static void jh057n_shutdown(struct mipi_dsi_device *dsi)
--{
--	struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
--	int ret;
--
--	ret = drm_panel_unprepare(&ctx->panel);
--	if (ret < 0)
--		DRM_DEV_ERROR(&dsi->dev, "Failed to unprepare panel: %d\n",
--			      ret);
--
--	ret = drm_panel_disable(&ctx->panel);
--	if (ret < 0)
--		DRM_DEV_ERROR(&dsi->dev, "Failed to disable panel: %d\n",
--			      ret);
--}
--
--static int jh057n_remove(struct mipi_dsi_device *dsi)
--{
--	struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
--	int ret;
--
--	jh057n_shutdown(dsi);
--
--	ret = mipi_dsi_detach(dsi);
--	if (ret < 0)
--		DRM_DEV_ERROR(&dsi->dev, "Failed to detach from DSI host: %d\n",
--			      ret);
--
--	drm_panel_remove(&ctx->panel);
--
--	jh057n_debugfs_remove(ctx);
--
--	return 0;
--}
--
--static const struct of_device_id jh057n_of_match[] = {
--	{ .compatible = "rocktech,jh057n00900" },
--	{ /* sentinel */ }
--};
--MODULE_DEVICE_TABLE(of, jh057n_of_match);
--
--static struct mipi_dsi_driver jh057n_driver = {
--	.probe	= jh057n_probe,
--	.remove = jh057n_remove,
--	.shutdown = jh057n_shutdown,
--	.driver = {
--		.name = DRV_NAME,
--		.of_match_table = jh057n_of_match,
--	},
--};
--module_mipi_dsi_driver(jh057n_driver);
--
--MODULE_AUTHOR("Guido Günther <agx@sigxcpu.org>");
--MODULE_DESCRIPTION("DRM driver for Rocktech JH057N00900 MIPI DSI panel");
--MODULE_LICENSE("GPL v2");
-diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7703.c b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
-new file mode 100644
-index 000000000000..38ff742bc120
---- /dev/null
-+++ b/drivers/gpu/drm/panel/panel-sitronix-st7703.c
-@@ -0,0 +1,424 @@
-+// SPDX-License-Identifier: GPL-2.0
-+/*
-+ * Rockteck jh057n00900 5.5" MIPI-DSI panel driver
-+ *
-+ * Copyright (C) Purism SPC 2019
-+ */
-+
-+#include <linux/debugfs.h>
-+#include <linux/delay.h>
-+#include <linux/gpio/consumer.h>
-+#include <linux/media-bus-format.h>
-+#include <linux/mod_devicetable.h>
-+#include <linux/module.h>
-+#include <linux/regulator/consumer.h>
-+
-+#include <video/display_timing.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_print.h>
-+
-+#define DRV_NAME "panel-rocktech-jh057n00900"
-+
-+/* Manufacturer specific Commands send via DSI */
-+#define ST7703_CMD_ALL_PIXEL_OFF 0x22
-+#define ST7703_CMD_ALL_PIXEL_ON	 0x23
-+#define ST7703_CMD_SETDISP	 0xB2
-+#define ST7703_CMD_SETRGBIF	 0xB3
-+#define ST7703_CMD_SETCYC	 0xB4
-+#define ST7703_CMD_SETBGP	 0xB5
-+#define ST7703_CMD_SETVCOM	 0xB6
-+#define ST7703_CMD_SETOTP	 0xB7
-+#define ST7703_CMD_SETPOWER_EXT	 0xB8
-+#define ST7703_CMD_SETEXTC	 0xB9
-+#define ST7703_CMD_SETMIPI	 0xBA
-+#define ST7703_CMD_SETVDC	 0xBC
-+#define ST7703_CMD_UNKNOWN0	 0xBF
-+#define ST7703_CMD_SETSCR	 0xC0
-+#define ST7703_CMD_SETPOWER	 0xC1
-+#define ST7703_CMD_SETPANEL	 0xCC
-+#define ST7703_CMD_SETGAMMA	 0xE0
-+#define ST7703_CMD_SETEQ	 0xE3
-+#define ST7703_CMD_SETGIP1	 0xE9
-+#define ST7703_CMD_SETGIP2	 0xEA
-+
-+struct jh057n {
-+	struct device *dev;
-+	struct drm_panel panel;
-+	struct gpio_desc *reset_gpio;
-+	struct regulator *vcc;
-+	struct regulator *iovcc;
-+	bool prepared;
-+
-+	struct dentry *debugfs;
-+};
-+
-+static inline struct jh057n *panel_to_jh057n(struct drm_panel *panel)
-+{
-+	return container_of(panel, struct jh057n, panel);
-+}
-+
-+#define dsi_generic_write_seq(dsi, seq...) do {				\
-+		static const u8 d[] = { seq };				\
-+		int ret;						\
-+		ret = mipi_dsi_generic_write(dsi, d, ARRAY_SIZE(d));	\
-+		if (ret < 0)						\
-+			return ret;					\
-+	} while (0)
-+
-+static int jh057n_init_sequence(struct jh057n *ctx)
-+{
-+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-+	struct device *dev = ctx->dev;
-+	int ret;
-+
-+	/*
-+	 * Init sequence was supplied by the panel vendor. Most of the commands
-+	 * resemble the ST7703 but the number of parameters often don't match
-+	 * so it's likely a clone.
-+	 */
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETEXTC,
-+			      0xF1, 0x12, 0x83);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETRGBIF,
-+			      0x10, 0x10, 0x05, 0x05, 0x03, 0xFF, 0x00, 0x00,
-+			      0x00, 0x00);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETSCR,
-+			      0x73, 0x73, 0x50, 0x50, 0x00, 0x00, 0x08, 0x70,
-+			      0x00);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETVDC, 0x4E);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETPANEL, 0x0B);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETCYC, 0x80);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETDISP, 0xF0, 0x12, 0x30);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETEQ,
-+			      0x07, 0x07, 0x0B, 0x0B, 0x03, 0x0B, 0x00, 0x00,
-+			      0x00, 0x00, 0xFF, 0x00, 0xC0, 0x10);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETBGP, 0x08, 0x08);
-+	msleep(20);
-+
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETVCOM, 0x3F, 0x3F);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_UNKNOWN0, 0x02, 0x11, 0x00);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP1,
-+			      0x82, 0x10, 0x06, 0x05, 0x9E, 0x0A, 0xA5, 0x12,
-+			      0x31, 0x23, 0x37, 0x83, 0x04, 0xBC, 0x27, 0x38,
-+			      0x0C, 0x00, 0x03, 0x00, 0x00, 0x00, 0x0C, 0x00,
-+			      0x03, 0x00, 0x00, 0x00, 0x75, 0x75, 0x31, 0x88,
-+			      0x88, 0x88, 0x88, 0x88, 0x88, 0x13, 0x88, 0x64,
-+			      0x64, 0x20, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
-+			      0x02, 0x88, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETGIP2,
-+			      0x02, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-+			      0x00, 0x00, 0x00, 0x00, 0x02, 0x46, 0x02, 0x88,
-+			      0x88, 0x88, 0x88, 0x88, 0x88, 0x64, 0x88, 0x13,
-+			      0x57, 0x13, 0x88, 0x88, 0x88, 0x88, 0x88, 0x88,
-+			      0x75, 0x88, 0x23, 0x14, 0x00, 0x00, 0x02, 0x00,
-+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-+			      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x0A,
-+			      0xA5, 0x00, 0x00, 0x00, 0x00);
-+	dsi_generic_write_seq(dsi, ST7703_CMD_SETGAMMA,
-+			      0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41, 0x37,
-+			      0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10, 0x11,
-+			      0x18, 0x00, 0x09, 0x0E, 0x29, 0x2D, 0x3C, 0x41,
-+			      0x37, 0x07, 0x0B, 0x0D, 0x10, 0x11, 0x0F, 0x10,
-+			      0x11, 0x18);
-+	msleep(20);
-+
-+	ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
-+	if (ret < 0) {
-+		DRM_DEV_ERROR(dev, "Failed to exit sleep mode: %d\n", ret);
-+		return ret;
-+	}
-+	/* Panel is operational 120 msec after reset */
-+	msleep(60);
-+	ret = mipi_dsi_dcs_set_display_on(dsi);
-+	if (ret)
-+		return ret;
-+
-+	DRM_DEV_DEBUG_DRIVER(dev, "Panel init sequence done\n");
-+	return 0;
-+}
-+
-+static int jh057n_enable(struct drm_panel *panel)
-+{
-+	struct jh057n *ctx = panel_to_jh057n(panel);
-+	int ret;
-+
-+	ret = jh057n_init_sequence(ctx);
-+	if (ret < 0) {
-+		DRM_DEV_ERROR(ctx->dev, "Panel init sequence failed: %d\n",
-+			      ret);
-+		return ret;
-+	}
-+
-+	return 0;
-+}
-+
-+static int jh057n_disable(struct drm_panel *panel)
-+{
-+	struct jh057n *ctx = panel_to_jh057n(panel);
-+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-+
-+	return mipi_dsi_dcs_set_display_off(dsi);
-+}
-+
-+static int jh057n_unprepare(struct drm_panel *panel)
-+{
-+	struct jh057n *ctx = panel_to_jh057n(panel);
-+
-+	if (!ctx->prepared)
-+		return 0;
-+
-+	regulator_disable(ctx->iovcc);
-+	regulator_disable(ctx->vcc);
-+	ctx->prepared = false;
-+
-+	return 0;
-+}
-+
-+static int jh057n_prepare(struct drm_panel *panel)
-+{
-+	struct jh057n *ctx = panel_to_jh057n(panel);
-+	int ret;
-+
-+	if (ctx->prepared)
-+		return 0;
-+
-+	DRM_DEV_DEBUG_DRIVER(ctx->dev, "Resetting the panel\n");
-+	ret = regulator_enable(ctx->vcc);
-+	if (ret < 0) {
-+		DRM_DEV_ERROR(ctx->dev,
-+			      "Failed to enable vcc supply: %d\n", ret);
-+		return ret;
-+	}
-+	ret = regulator_enable(ctx->iovcc);
-+	if (ret < 0) {
-+		DRM_DEV_ERROR(ctx->dev,
-+			      "Failed to enable iovcc supply: %d\n", ret);
-+		goto disable_vcc;
-+	}
-+
-+	gpiod_set_value_cansleep(ctx->reset_gpio, 1);
-+	usleep_range(20, 40);
-+	gpiod_set_value_cansleep(ctx->reset_gpio, 0);
-+	msleep(20);
-+
-+	ctx->prepared = true;
-+
-+	return 0;
-+
-+disable_vcc:
-+	regulator_disable(ctx->vcc);
-+	return ret;
-+}
-+
-+static const struct drm_display_mode default_mode = {
-+	.hdisplay    = 720,
-+	.hsync_start = 720 + 90,
-+	.hsync_end   = 720 + 90 + 20,
-+	.htotal	     = 720 + 90 + 20 + 20,
-+	.vdisplay    = 1440,
-+	.vsync_start = 1440 + 20,
-+	.vsync_end   = 1440 + 20 + 4,
-+	.vtotal	     = 1440 + 20 + 4 + 12,
-+	.vrefresh    = 60,
-+	.clock	     = 75276,
-+	.flags	     = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
-+	.width_mm    = 65,
-+	.height_mm   = 130,
-+};
-+
-+static int jh057n_get_modes(struct drm_panel *panel,
-+			    struct drm_connector *connector)
-+{
-+	struct jh057n *ctx = panel_to_jh057n(panel);
-+	struct drm_display_mode *mode;
-+
-+	mode = drm_mode_duplicate(connector->dev, &default_mode);
-+	if (!mode) {
-+		DRM_DEV_ERROR(ctx->dev, "Failed to add mode %ux%u@%u\n",
-+			      default_mode.hdisplay, default_mode.vdisplay,
-+			      default_mode.vrefresh);
-+		return -ENOMEM;
-+	}
-+
-+	drm_mode_set_name(mode);
-+
-+	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
-+	connector->display_info.width_mm = mode->width_mm;
-+	connector->display_info.height_mm = mode->height_mm;
-+	drm_mode_probed_add(connector, mode);
-+
-+	return 1;
-+}
-+
-+static const struct drm_panel_funcs jh057n_drm_funcs = {
-+	.disable   = jh057n_disable,
-+	.unprepare = jh057n_unprepare,
-+	.prepare   = jh057n_prepare,
-+	.enable	   = jh057n_enable,
-+	.get_modes = jh057n_get_modes,
-+};
-+
-+static int allpixelson_set(void *data, u64 val)
-+{
-+	struct jh057n *ctx = data;
-+	struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
-+
-+	DRM_DEV_DEBUG_DRIVER(ctx->dev, "Setting all pixels on\n");
-+	dsi_generic_write_seq(dsi, ST7703_CMD_ALL_PIXEL_ON);
-+	msleep(val * 1000);
-+	/* Reset the panel to get video back */
-+	drm_panel_disable(&ctx->panel);
-+	drm_panel_unprepare(&ctx->panel);
-+	drm_panel_prepare(&ctx->panel);
-+	drm_panel_enable(&ctx->panel);
-+
-+	return 0;
-+}
-+
-+DEFINE_SIMPLE_ATTRIBUTE(allpixelson_fops, NULL,
-+			allpixelson_set, "%llu\n");
-+
-+static void jh057n_debugfs_init(struct jh057n *ctx)
-+{
-+	ctx->debugfs = debugfs_create_dir(DRV_NAME, NULL);
-+
-+	debugfs_create_file("allpixelson", 0600, ctx->debugfs, ctx,
-+			    &allpixelson_fops);
-+}
-+
-+static void jh057n_debugfs_remove(struct jh057n *ctx)
-+{
-+	debugfs_remove_recursive(ctx->debugfs);
-+	ctx->debugfs = NULL;
-+}
-+
-+static int jh057n_probe(struct mipi_dsi_device *dsi)
-+{
-+	struct device *dev = &dsi->dev;
-+	struct jh057n *ctx;
-+	int ret;
-+
-+	ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL);
-+	if (!ctx)
-+		return -ENOMEM;
-+
-+	ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
-+	if (IS_ERR(ctx->reset_gpio)) {
-+		DRM_DEV_ERROR(dev, "cannot get reset gpio\n");
-+		return PTR_ERR(ctx->reset_gpio);
-+	}
-+
-+	mipi_dsi_set_drvdata(dsi, ctx);
-+
-+	ctx->dev = dev;
-+
-+	dsi->lanes = 4;
-+	dsi->format = MIPI_DSI_FMT_RGB888;
-+	dsi->mode_flags = MIPI_DSI_MODE_VIDEO |
-+		MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_VIDEO_SYNC_PULSE;
-+
-+	ctx->vcc = devm_regulator_get(dev, "vcc");
-+	if (IS_ERR(ctx->vcc)) {
-+		ret = PTR_ERR(ctx->vcc);
-+		if (ret != -EPROBE_DEFER)
-+			DRM_DEV_ERROR(dev,
-+				      "Failed to request vcc regulator: %d\n",
-+				      ret);
-+		return ret;
-+	}
-+	ctx->iovcc = devm_regulator_get(dev, "iovcc");
-+	if (IS_ERR(ctx->iovcc)) {
-+		ret = PTR_ERR(ctx->iovcc);
-+		if (ret != -EPROBE_DEFER)
-+			DRM_DEV_ERROR(dev,
-+				      "Failed to request iovcc regulator: %d\n",
-+				      ret);
-+		return ret;
-+	}
-+
-+	drm_panel_init(&ctx->panel, dev, &jh057n_drm_funcs,
-+		       DRM_MODE_CONNECTOR_DSI);
-+
-+	ret = drm_panel_of_backlight(&ctx->panel);
-+	if (ret)
-+		return ret;
-+
-+	drm_panel_add(&ctx->panel);
-+
-+	ret = mipi_dsi_attach(dsi);
-+	if (ret < 0) {
-+		DRM_DEV_ERROR(dev,
-+			      "mipi_dsi_attach failed (%d). Is host ready?\n",
-+			      ret);
-+		drm_panel_remove(&ctx->panel);
-+		return ret;
-+	}
-+
-+	DRM_DEV_INFO(dev, "%ux%u@%u %ubpp dsi %udl - ready\n",
-+		     default_mode.hdisplay, default_mode.vdisplay,
-+		     default_mode.vrefresh,
-+		     mipi_dsi_pixel_format_to_bpp(dsi->format), dsi->lanes);
-+
-+	jh057n_debugfs_init(ctx);
-+	return 0;
-+}
-+
-+static void jh057n_shutdown(struct mipi_dsi_device *dsi)
-+{
-+	struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
-+	int ret;
-+
-+	ret = drm_panel_unprepare(&ctx->panel);
-+	if (ret < 0)
-+		DRM_DEV_ERROR(&dsi->dev, "Failed to unprepare panel: %d\n",
-+			      ret);
-+
-+	ret = drm_panel_disable(&ctx->panel);
-+	if (ret < 0)
-+		DRM_DEV_ERROR(&dsi->dev, "Failed to disable panel: %d\n",
-+			      ret);
-+}
-+
-+static int jh057n_remove(struct mipi_dsi_device *dsi)
-+{
-+	struct jh057n *ctx = mipi_dsi_get_drvdata(dsi);
-+	int ret;
-+
-+	jh057n_shutdown(dsi);
-+
-+	ret = mipi_dsi_detach(dsi);
-+	if (ret < 0)
-+		DRM_DEV_ERROR(&dsi->dev, "Failed to detach from DSI host: %d\n",
-+			      ret);
-+
-+	drm_panel_remove(&ctx->panel);
-+
-+	jh057n_debugfs_remove(ctx);
-+
-+	return 0;
-+}
-+
-+static const struct of_device_id jh057n_of_match[] = {
-+	{ .compatible = "rocktech,jh057n00900" },
-+	{ /* sentinel */ }
-+};
-+MODULE_DEVICE_TABLE(of, jh057n_of_match);
-+
-+static struct mipi_dsi_driver jh057n_driver = {
-+	.probe	= jh057n_probe,
-+	.remove = jh057n_remove,
-+	.shutdown = jh057n_shutdown,
-+	.driver = {
-+		.name = DRV_NAME,
-+		.of_match_table = jh057n_of_match,
-+	},
-+};
-+module_mipi_dsi_driver(jh057n_driver);
-+
-+MODULE_AUTHOR("Guido Günther <agx@sigxcpu.org>");
-+MODULE_DESCRIPTION("DRM driver for Rocktech JH057N00900 MIPI DSI panel");
-+MODULE_LICENSE("GPL v2");
--- 
-2.26.2
-