Add driver to support Sharp LS06T1SX01 FullHD panel. The panel uses nt35695 driver IC. For example this LCD module can be found in the kwaek.ca Dragonboard Display Adapter Bundle.

Signed-off-by: Dmitry Baryshkov dmitry.baryshkov@linaro.org --- drivers/gpu/drm/panel/Kconfig | 10 + drivers/gpu/drm/panel/Makefile | 1 + .../gpu/drm/panel/panel-sharp-ls060t1sx01.c | 274 ++++++++++++++++++ 3 files changed, 285 insertions(+) create mode 100644 drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c

diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 4894913936e9..08f85a5ff738 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -451,6 +451,16 @@ config DRM_PANEL_SHARP_LS043T1LE01 Say Y here if you want to enable support for Sharp LS043T1LE01 qHD (540x960) DSI panel as found on the Qualcomm APQ8074 Dragonboard

+config DRM_PANEL_SHARP_LS060T1SX01 + tristate "Sharp LS060T1SX01 FullHD video mode 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 Sharp LS060T1SX01 6.0" + FullHD (1080x1920) DSI panel as found in Dragonboard Display Adapter + Bundle. + config DRM_PANEL_SITRONIX_ST7701 tristate "Sitronix ST7701 panel driver" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index cae4d976c069..7dd6bd755e13 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -47,6 +47,7 @@ obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) += panel-seiko-43wvf1g.o obj-$(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-$(CONFIG_DRM_PANEL_SHARP_LS060T1SX01) += panel-sharp-ls060t1sx01.o obj-$(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 diff --git a/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c b/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c new file mode 100644 index 000000000000..4fece00e6156 --- /dev/null +++ b/drivers/gpu/drm/panel/panel-sharp-ls060t1sx01.c @@ -0,0 +1,274 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (c) 2021 Linaro Ltd. +// Generated with linux-mdss-dsi-panel-driver-generator from vendor device tree: +// Copyright (c) 2013-2014, The Linux Foundation. All rights reserved. + +#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> + +struct sharp_ls060 { + struct drm_panel panel; + struct mipi_dsi_device *dsi; + struct regulator *supply; + struct gpio_desc *reset_gpio; + bool prepared; +}; + +static inline struct sharp_ls060 *to_sharp_ls060(struct drm_panel *panel) +{ + return container_of(panel, struct sharp_ls060, panel); +} + +#define dsi_dcs_write_seq(dsi, seq...) ({ \ + static const u8 d[] = { seq }; \ + \ + mipi_dsi_dcs_write_buffer(dsi, d, ARRAY_SIZE(d)); \ + }) + +static void sharp_ls060_reset(struct sharp_ls060 *ctx) +{ + gpiod_set_value_cansleep(ctx->reset_gpio, 0); + usleep_range(10000, 11000); + 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 sharp_ls060_on(struct sharp_ls060 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags |= MIPI_DSI_MODE_LPM; + + ret = dsi_dcs_write_seq(dsi, 0xbb, 0x13); + if (ret < 0) { + dev_err(dev, "Failed to send command: %d\n", ret); + return ret; + } + + ret = dsi_dcs_write_seq(dsi, MIPI_DCS_WRITE_MEMORY_START); + if (ret < 0) { + dev_err(dev, "Failed to send command: %d\n", ret); + return ret; + } + + ret = mipi_dsi_dcs_exit_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to exit sleep mode: %d\n", ret); + return ret; + } + msleep(120); + + ret = mipi_dsi_dcs_set_display_on(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display on: %d\n", ret); + return ret; + } + msleep(50); + + return 0; +} + +static int sharp_ls060_off(struct sharp_ls060 *ctx) +{ + struct mipi_dsi_device *dsi = ctx->dsi; + struct device *dev = &dsi->dev; + int ret; + + dsi->mode_flags &= ~MIPI_DSI_MODE_LPM; + + ret = mipi_dsi_dcs_set_display_off(dsi); + if (ret < 0) { + dev_err(dev, "Failed to set display off: %d\n", ret); + return ret; + } + usleep_range(2000, 3000); + + ret = mipi_dsi_dcs_enter_sleep_mode(dsi); + if (ret < 0) { + dev_err(dev, "Failed to enter sleep mode: %d\n", ret); + return ret; + } + msleep(121); + + return 0; +} + +static int sharp_ls060_prepare(struct drm_panel *panel) +{ + struct sharp_ls060 *ctx = to_sharp_ls060(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (ctx->prepared) + return 0; + + ret = regulator_enable(ctx->supply); + if (ret < 0) + return ret; + + sharp_ls060_reset(ctx); + + ret = sharp_ls060_on(ctx); + if (ret < 0) { + dev_err(dev, "Failed to initialize panel: %d\n", ret); + regulator_disable(ctx->supply); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + return ret; + } + + ctx->prepared = true; + return 0; +} + +static int sharp_ls060_unprepare(struct drm_panel *panel) +{ + struct sharp_ls060 *ctx = to_sharp_ls060(panel); + struct device *dev = &ctx->dsi->dev; + int ret; + + if (!ctx->prepared) + return 0; + + ret = sharp_ls060_off(ctx); + if (ret < 0) + dev_err(dev, "Failed to un-initialize panel: %d\n", ret); + + regulator_disable(ctx->supply); + gpiod_set_value_cansleep(ctx->reset_gpio, 1); + + ctx->prepared = false; + return 0; +} + +static const struct drm_display_mode sharp_ls060_mode = { + .clock = (1080 + 96 + 16 + 64) * (1920 + 4 + 1 + 16) * 60 / 1000, + .hdisplay = 1080, + .hsync_start = 1080 + 96, + .hsync_end = 1080 + 96 + 16, + .htotal = 1080 + 96 + 16 + 64, + .vdisplay = 1920, + .vsync_start = 1920 + 4, + .vsync_end = 1920 + 4 + 1, + .vtotal = 1920 + 4 + 1 + 16, + .width_mm = 75, + .height_mm = 132, +}; + +static int sharp_ls060_get_modes(struct drm_panel *panel, + struct drm_connector *connector) +{ + struct drm_display_mode *mode; + + mode = drm_mode_duplicate(connector->dev, &sharp_ls060_mode); + if (!mode) + 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 sharp_ls060_panel_funcs = { + .prepare = sharp_ls060_prepare, + .unprepare = sharp_ls060_unprepare, + .get_modes = sharp_ls060_get_modes, +}; + +static int sharp_ls060_probe(struct mipi_dsi_device *dsi) +{ + struct device *dev = &dsi->dev; + struct sharp_ls060 *ctx; + int ret; + + ctx = devm_kzalloc(dev, sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->supply = devm_regulator_get(dev, "avdd"); + if (IS_ERR(ctx->supply)) + return PTR_ERR(ctx->supply); + + 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 | MIPI_DSI_MODE_VIDEO_BURST | + MIPI_DSI_MODE_EOT_PACKET | + MIPI_DSI_CLOCK_NON_CONTINUOUS; + + drm_panel_init(&ctx->panel, dev, &sharp_ls060_panel_funcs, + DRM_MODE_CONNECTOR_DSI); + + ret = drm_panel_of_backlight(&ctx->panel); + if (ret) + return dev_err_probe(dev, ret, "Failed to get backlight\n"); + + drm_panel_add(&ctx->panel); + + ret = mipi_dsi_attach(dsi); + if (ret < 0) { + dev_err(dev, "Failed to attach to DSI host: %d\n", ret); + drm_panel_remove(&ctx->panel); + return ret; + } + + return 0; +} + +static int sharp_ls060_remove(struct mipi_dsi_device *dsi) +{ + struct sharp_ls060 *ctx = mipi_dsi_get_drvdata(dsi); + int ret; + + ret = mipi_dsi_detach(dsi); + if (ret < 0) + dev_err(&dsi->dev, "Failed to detach from DSI host: %d\n", ret); + + drm_panel_remove(&ctx->panel); + + return 0; +} + +static const struct of_device_id sharp_ls060t1sx01_of_match[] = { + { .compatible = "sharp,ls060t1sx01" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, sharp_ls060t1sx01_of_match); + +static struct mipi_dsi_driver sharp_ls060_driver = { + .probe = sharp_ls060_probe, + .remove = sharp_ls060_remove, + .driver = { + .name = "panel-sharp-ls060t1sx01", + .of_match_table = sharp_ls060t1sx01_of_match, + }, +}; +module_mipi_dsi_driver(sharp_ls060_driver); + +MODULE_AUTHOR("Dmitry Baryshkov dmitry.baryshkov@linaro.org"); +MODULE_DESCRIPTION("DRM driver for Sharp LS060T1SX01 1080p video mode dsi panel"); +MODULE_LICENSE("GPL v2");