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drm: panel: add TDO tl070wsh30 panel driver
This adds support for the TDO TL070WSH30 TFT-LCD panel module. The panel has a 1024×600 resolution and uses 24 bit RGB per pixel. It provides a MIPI DSI interface to the host, a built-in LED backlight and touch controller. Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200915121912.4347-5-narmstrong@baylibre.com
This commit is contained in:
Neil Armstrong
parent
6e3a866432
commit
cf40c66005
@ -460,6 +460,17 @@ config DRM_PANEL_SONY_ACX565AKM
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Say Y here if you want to enable support for the Sony ACX565AKM
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800x600 3.5" panel (found on the Nokia N900).
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config DRM_PANEL_TDO_TL070WSH30
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tristate "TDO TL070WSH30 DSI panel"
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depends on OF
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depends on DRM_MIPI_DSI
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depends on BACKLIGHT_CLASS_DEVICE
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help
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Say Y here if you want to enable support for TDO TL070WSH30 TFT-LCD
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panel module. The panel has a 1024×600 resolution and uses
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24 bit RGB per pixel. It provides a MIPI DSI interface to
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the host, a built-in LED backlight and touch controller.
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config DRM_PANEL_TPO_TD028TTEC1
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tristate "Toppoly (TPO) TD028TTEC1 panel driver"
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depends on OF && SPI
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@ -48,6 +48,7 @@ obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7703) += panel-sitronix-st7703.o
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obj-$(CONFIG_DRM_PANEL_SITRONIX_ST7789V) += panel-sitronix-st7789v.o
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obj-$(CONFIG_DRM_PANEL_SONY_ACX424AKP) += panel-sony-acx424akp.o
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obj-$(CONFIG_DRM_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
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obj-$(CONFIG_DRM_PANEL_TDO_TL070WSH30) += panel-tdo-tl070wsh30.o
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obj-$(CONFIG_DRM_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
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obj-$(CONFIG_DRM_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
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obj-$(CONFIG_DRM_PANEL_TPO_TPG110) += panel-tpo-tpg110.o
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250
drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
Normal file
250
drivers/gpu/drm/panel/panel-tdo-tl070wsh30.c
Normal file
@ -0,0 +1,250 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020 BayLibre, SAS
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* Author: Neil Armstrong <narmstrong@baylibre.com>
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*/
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#include <linux/delay.h>
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#include <linux/gpio/consumer.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/regulator/consumer.h>
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#include <video/mipi_display.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_device.h>
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_modes.h>
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#include <drm/drm_panel.h>
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struct tdo_tl070wsh30_panel {
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struct drm_panel base;
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struct mipi_dsi_device *link;
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struct regulator *supply;
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struct gpio_desc *reset_gpio;
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bool prepared;
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};
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static inline
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struct tdo_tl070wsh30_panel *to_tdo_tl070wsh30_panel(struct drm_panel *panel)
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{
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return container_of(panel, struct tdo_tl070wsh30_panel, base);
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}
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static int tdo_tl070wsh30_panel_prepare(struct drm_panel *panel)
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{
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struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = to_tdo_tl070wsh30_panel(panel);
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int err;
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if (tdo_tl070wsh30->prepared)
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return 0;
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err = regulator_enable(tdo_tl070wsh30->supply);
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if (err < 0)
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return err;
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usleep_range(10000, 11000);
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gpiod_set_value_cansleep(tdo_tl070wsh30->reset_gpio, 1);
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usleep_range(10000, 11000);
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gpiod_set_value_cansleep(tdo_tl070wsh30->reset_gpio, 0);
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msleep(200);
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err = mipi_dsi_dcs_exit_sleep_mode(tdo_tl070wsh30->link);
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if (err < 0) {
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dev_err(panel->dev, "failed to exit sleep mode: %d\n", err);
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regulator_disable(tdo_tl070wsh30->supply);
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return err;
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}
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msleep(200);
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err = mipi_dsi_dcs_set_display_on(tdo_tl070wsh30->link);
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if (err < 0) {
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dev_err(panel->dev, "failed to set display on: %d\n", err);
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regulator_disable(tdo_tl070wsh30->supply);
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return err;
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}
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msleep(20);
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tdo_tl070wsh30->prepared = true;
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return 0;
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}
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static int tdo_tl070wsh30_panel_unprepare(struct drm_panel *panel)
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{
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struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = to_tdo_tl070wsh30_panel(panel);
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int err;
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if (!tdo_tl070wsh30->prepared)
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return 0;
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err = mipi_dsi_dcs_set_display_off(tdo_tl070wsh30->link);
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if (err < 0)
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dev_err(panel->dev, "failed to set display off: %d\n", err);
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usleep_range(10000, 11000);
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err = mipi_dsi_dcs_enter_sleep_mode(tdo_tl070wsh30->link);
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if (err < 0) {
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dev_err(panel->dev, "failed to enter sleep mode: %d\n", err);
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return err;
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}
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usleep_range(10000, 11000);
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regulator_disable(tdo_tl070wsh30->supply);
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tdo_tl070wsh30->prepared = false;
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return 0;
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}
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static const struct drm_display_mode default_mode = {
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.clock = 47250,
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.hdisplay = 1024,
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.hsync_start = 1024 + 46,
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.hsync_end = 1024 + 46 + 80,
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.htotal = 1024 + 46 + 80 + 100,
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.vdisplay = 600,
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.vsync_start = 600 + 5,
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.vsync_end = 600 + 5 + 5,
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.vtotal = 600 + 5 + 5 + 20,
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.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC,
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};
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static int tdo_tl070wsh30_panel_get_modes(struct drm_panel *panel,
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struct drm_connector *connector)
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{
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struct drm_display_mode *mode;
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mode = drm_mode_duplicate(connector->dev, &default_mode);
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if (!mode) {
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dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
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default_mode.hdisplay, default_mode.vdisplay,
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drm_mode_vrefresh(&default_mode));
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return -ENOMEM;
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}
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drm_mode_set_name(mode);
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drm_mode_probed_add(connector, mode);
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connector->display_info.width_mm = 154;
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connector->display_info.height_mm = 85;
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connector->display_info.bpc = 8;
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return 1;
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}
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static const struct drm_panel_funcs tdo_tl070wsh30_panel_funcs = {
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.unprepare = tdo_tl070wsh30_panel_unprepare,
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.prepare = tdo_tl070wsh30_panel_prepare,
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.get_modes = tdo_tl070wsh30_panel_get_modes,
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};
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static const struct of_device_id tdo_tl070wsh30_of_match[] = {
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{ .compatible = "tdo,tl070wsh30", },
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, tdo_tl070wsh30_of_match);
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static int tdo_tl070wsh30_panel_add(struct tdo_tl070wsh30_panel *tdo_tl070wsh30)
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{
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struct device *dev = &tdo_tl070wsh30->link->dev;
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int err;
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tdo_tl070wsh30->supply = devm_regulator_get(dev, "power");
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if (IS_ERR(tdo_tl070wsh30->supply))
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return PTR_ERR(tdo_tl070wsh30->supply);
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tdo_tl070wsh30->reset_gpio = devm_gpiod_get(dev, "reset",
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GPIOD_OUT_LOW);
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if (IS_ERR(tdo_tl070wsh30->reset_gpio)) {
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err = PTR_ERR(tdo_tl070wsh30->reset_gpio);
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dev_dbg(dev, "failed to get reset gpio: %d\n", err);
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return err;
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}
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drm_panel_init(&tdo_tl070wsh30->base, &tdo_tl070wsh30->link->dev,
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&tdo_tl070wsh30_panel_funcs, DRM_MODE_CONNECTOR_DSI);
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err = drm_panel_of_backlight(&tdo_tl070wsh30->base);
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if (err)
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return err;
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drm_panel_add(&tdo_tl070wsh30->base);
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return 0;
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}
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static int tdo_tl070wsh30_panel_probe(struct mipi_dsi_device *dsi)
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{
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struct tdo_tl070wsh30_panel *tdo_tl070wsh30;
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int err;
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dsi->lanes = 4;
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dsi->format = MIPI_DSI_FMT_RGB888;
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dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM;
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tdo_tl070wsh30 = devm_kzalloc(&dsi->dev, sizeof(*tdo_tl070wsh30),
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GFP_KERNEL);
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if (!tdo_tl070wsh30)
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return -ENOMEM;
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mipi_dsi_set_drvdata(dsi, tdo_tl070wsh30);
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tdo_tl070wsh30->link = dsi;
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err = tdo_tl070wsh30_panel_add(tdo_tl070wsh30);
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if (err < 0)
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return err;
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return mipi_dsi_attach(dsi);
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}
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static int tdo_tl070wsh30_panel_remove(struct mipi_dsi_device *dsi)
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{
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struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = mipi_dsi_get_drvdata(dsi);
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int err;
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err = mipi_dsi_detach(dsi);
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if (err < 0)
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dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
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drm_panel_remove(&tdo_tl070wsh30->base);
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drm_panel_disable(&tdo_tl070wsh30->base);
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drm_panel_unprepare(&tdo_tl070wsh30->base);
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return 0;
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}
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static void tdo_tl070wsh30_panel_shutdown(struct mipi_dsi_device *dsi)
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{
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struct tdo_tl070wsh30_panel *tdo_tl070wsh30 = mipi_dsi_get_drvdata(dsi);
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drm_panel_disable(&tdo_tl070wsh30->base);
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drm_panel_unprepare(&tdo_tl070wsh30->base);
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}
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static struct mipi_dsi_driver tdo_tl070wsh30_panel_driver = {
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.driver = {
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.name = "panel-tdo-tl070wsh30",
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.of_match_table = tdo_tl070wsh30_of_match,
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},
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.probe = tdo_tl070wsh30_panel_probe,
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.remove = tdo_tl070wsh30_panel_remove,
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.shutdown = tdo_tl070wsh30_panel_shutdown,
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};
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module_mipi_dsi_driver(tdo_tl070wsh30_panel_driver);
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MODULE_AUTHOR("Neil Armstrong <narmstrong@baylibre.com>");
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MODULE_DESCRIPTION("TDO TL070WSH30 panel driver");
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MODULE_LICENSE("GPL v2");
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