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-rw-r--r--0001-drm-panel-rocktech-jh057n00900-Rename-the-driver-to-.patch948
1 files changed, 0 insertions, 948 deletions
diff --git a/0001-drm-panel-rocktech-jh057n00900-Rename-the-driver-to-.patch b/0001-drm-panel-rocktech-jh057n00900-Rename-the-driver-to-.patch
deleted file mode 100644
index d78bf5644..000000000
--- a/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
-
generated by cgit (git 2.34.1) at 2024-04-19 23:47:25 +0000