This module is a color active matrix LCD module incorporating
Oxide TFT (Thin Film Transistor). It is composed of a color TFT-LCD
panel, driver ICs, a control circuit and power supply circuit, and
a backlight unit. Graphics and texts can be displayed on a 1536x2048
dots panel with (16,777,216) colors by using MIPI DUAL DSI interface,
supplying +3.3V DC supply voltage for TFT-LCD panel driving and
supplying DC supply voltage for LED Backlight.
Signed-off-by: Svyatoslav Ryhel <clamo...@gmail.com>
---
drivers/video/Kconfig | 9 +
drivers/video/Makefile | 1 +
drivers/video/sharp-lq079l1sx01.c | 288 ++++++++++++++++++++++++++++++
3 files changed, 298 insertions(+)
create mode 100644 drivers/video/sharp-lq079l1sx01.c
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 926dafe7a5a..b1ef73f3e5c 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -599,6 +599,15 @@ config VIDEO_LCD_SAMSUNG_LTL106HL02
LCD module found in Microsoft Surface 2. The panel has a FullHD
resolution (1920x1080).
+config VIDEO_LCD_SHARP_LQ079L1SX01
+ tristate "Sharp LQ079L1SX01 1536x2048 DSI video mode panel"
+ depends on PANEL && BACKLIGHT
+ select VIDEO_MIPI_DSI
+ help
+ Say Y here if you want to enable support for Sharp LQ079L1SX01
+ LCD module found in Xiaomi Mi Pad tablet. The panel has a QXGA
+ resolution (1536x2048).
+
config VIDEO_LCD_SHARP_LQ101R1SX01
tristate "Sharp LQ101R1SX01 2560x1600 DSI video mode panel"
depends on PANEL && BACKLIGHT
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index 391ef8397bc..6073bc5234a 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -65,6 +65,7 @@ obj-$(CONFIG_VIDEO_LCD_RAYDIUM_RM68200) += raydium-rm68200.o
obj-$(CONFIG_VIDEO_LCD_RENESAS_R61307) += renesas-r61307.o
obj-$(CONFIG_VIDEO_LCD_RENESAS_R69328) += renesas-r69328.o
obj-$(CONFIG_VIDEO_LCD_SAMSUNG_LTL106HL02) += samsung-ltl106hl02.o
+obj-$(CONFIG_VIDEO_LCD_SHARP_LQ079L1SX01) += sharp-lq079l1sx01.o
obj-$(CONFIG_VIDEO_LCD_SHARP_LQ101R1SX01) += sharp-lq101r1sx01.o
obj-$(CONFIG_VIDEO_LCD_SSD2828) += ssd2828.o
obj-$(CONFIG_VIDEO_LCD_TDO_TL070WSH30) += tdo-tl070wsh30.o
diff --git a/drivers/video/sharp-lq079l1sx01.c
b/drivers/video/sharp-lq079l1sx01.c
new file mode 100644
index 00000000000..a8197f40fc7
--- /dev/null
+++ b/drivers/video/sharp-lq079l1sx01.c
@@ -0,0 +1,288 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Sharp LQ079L1SX01 DSI panel driver
+ *
+ * Copyright (c) 2024 Svyatoslav Ryhel <clamo...@gmail.com>
+ */
+
+#include <backlight.h>
+#include <dm.h>
+#include <panel.h>
+#include <log.h>
+#include <mipi_dsi.h>
+#include <linux/delay.h>
+#include <asm/gpio.h>
+#include <power/regulator.h>
+
+struct sharp_lq079l1sx01_priv {
+ struct udevice *backlight;
+ struct udevice *panel_sec;
+
+ struct udevice *avdd;
+ struct udevice *vddio;
+ struct udevice *vsp;
+ struct udevice *vsn;
+
+ struct gpio_desc reset_gpio;
+};
+
+static struct display_timing default_timing = {
+ .pixelclock.typ = 215000000,
+ .hactive.typ = 1536,
+ .hfront_porch.typ = 136,
+ .hback_porch.typ = 28,
+ .hsync_len.typ = 28,
+ .vactive.typ = 2048,
+ .vfront_porch.typ = 14,
+ .vback_porch.typ = 8,
+ .vsync_len.typ = 2,
+};
+
+static int dcs_write_one(struct mipi_dsi_device *dsi, u8 cmd, u8 data)
+{
+ return mipi_dsi_dcs_write(dsi, cmd, &data, 1);
+}
+
+static int sharp_lq079l1sx01_configure_link(struct udevice *dev)
+{
+ struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
+ struct mipi_dsi_device *dsi = plat->device;
+ int ret;
+
+ ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
+ if (ret < 0) {
+ log_debug("%s: failed to exit sleep mode %s: %d\n",
+ __func__, dev->parent->name, ret);
+ }
+ mdelay(120);
+
+ ret = dcs_write_one(dsi, MIPI_DCS_SET_DISPLAY_BRIGHTNESS, 0xff);
+ if (ret < 0) {
+ log_debug("%s: failed to SET_DISPLAY_BRIGHTNESS %s: %d\n",
+ __func__, dev->parent->name, ret);
+ }
+ ret = dcs_write_one(dsi, MIPI_DCS_WRITE_POWER_SAVE, 0x01);
+ if (ret < 0) {
+ log_debug("%s: failed to WRITE_POWER_SAVE %s: %d\n",
+ __func__, dev->parent->name, ret);
+ }
+ ret = dcs_write_one(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x2c);
+ if (ret < 0) {
+ log_debug("%s: failed to WRITE_CONTROL_DISPLAY %s: %d\n",
+ __func__, dev->parent->name, ret);
+ }
+
+ ret = mipi_dsi_dcs_set_display_on(dsi);
+ if (ret < 0) {
+ log_debug("%s: failed to set panel on %s: %d\n",
+ __func__, dev->parent->name, ret);
+ }
+
+ return 0;
+}
+
+static int sharp_lq079l1sx01_enable_backlight(struct udevice *dev)
+{
+ struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev);
+
+ if (!priv->panel_sec)
+ return 0;
+
+ sharp_lq079l1sx01_configure_link(dev);
+ sharp_lq079l1sx01_configure_link(priv->panel_sec);
+
+ return 0;
+}
+
+static int sharp_lq079l1sx01_set_backlight(struct udevice *dev, int percent)
+{
+ struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ if (!priv->panel_sec)
+ return 0;
+
+ ret = backlight_enable(priv->backlight);
+ if (ret)
+ return ret;
+
+ return backlight_set_brightness(priv->backlight, percent);
+}
+
+static int sharp_lq079l1sx01_timings(struct udevice *dev,
+ struct display_timing *timing)
+{
+ memcpy(timing, &default_timing, sizeof(*timing));
+ return 0;
+}
+
+static int sharp_lq079l1sx01_of_to_plat(struct udevice *dev)
+{
+ struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ /* If node has no link2 it is secondary panel */
+ if (!dev_read_bool(dev, "link2"))
+ return 0;
+
+ ret = uclass_get_device_by_phandle(UCLASS_PANEL, dev,
+ "link2", &priv->panel_sec);
+ if (ret) {
+ log_debug("%s: cannot get secondary panel: ret = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev,
+ "backlight", &priv->backlight);
+ if (ret) {
+ log_debug("%s: cannot get backlight: ret = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
+ "avdd-supply", &priv->avdd);
+ if (ret) {
+ log_debug("%s: cannot get avdd-supply: ret = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
+ "vddio-supply", &priv->vddio);
+ if (ret) {
+ log_debug("%s: cannot get vddio-supply: ret = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
+ "vsp-supply", &priv->vsp);
+ if (ret) {
+ log_debug("%s: cannot get vsp-supply: ret = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
+ "vsn-supply", &priv->vsn);
+ if (ret) {
+ log_debug("%s: cannot get vsn-supply: ret = %d\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = gpio_request_by_name(dev, "reset-gpios", 0,
+ &priv->reset_gpio, GPIOD_IS_OUT);
+ if (ret) {
+ log_debug("%s: cannot get reser-gpios (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int sharp_lq079l1sx01_hw_init(struct udevice *dev)
+{
+ struct sharp_lq079l1sx01_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ if (!priv->panel_sec)
+ return 0;
+
+ ret = regulator_set_enable_if_allowed(priv->vddio, 1);
+ if (ret) {
+ log_debug("%s: enabling vddio-supply failed (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ ret = regulator_set_enable_if_allowed(priv->avdd, 1);
+ if (ret) {
+ log_debug("%s: enabling avdd-supply failed (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ mdelay(12);
+
+ ret = regulator_set_enable_if_allowed(priv->vsp, 1);
+ if (ret) {
+ log_debug("%s: enabling vsp-supply failed (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ mdelay(12);
+
+ ret = regulator_set_enable_if_allowed(priv->vsn, 1);
+ if (ret) {
+ log_debug("%s: enabling vsn-supply failed (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+
+ mdelay(24);
+
+ ret = dm_gpio_set_value(&priv->reset_gpio, 0);
+ if (ret) {
+ log_debug("%s: error disabling reset-gpios (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+ udelay(3);
+
+ ret = dm_gpio_set_value(&priv->reset_gpio, 1);
+ if (ret) {
+ log_debug("%s: error enabling reset-gpios (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+ udelay(3);
+
+ ret = dm_gpio_set_value(&priv->reset_gpio, 0);
+ if (ret) {
+ log_debug("%s: error disabling reset-gpios (%d)\n",
+ __func__, ret);
+ return ret;
+ }
+ mdelay(32);
+
+ return 0;
+}
+
+static int sharp_lq079l1sx01_probe(struct udevice *dev)
+{
+ struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
+
+ /* fill characteristics of DSI data link */
+ plat->lanes = 4;
+ plat->format = MIPI_DSI_FMT_RGB888;
+ plat->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM;
+
+ return sharp_lq079l1sx01_hw_init(dev);
+}
+
+static const struct panel_ops sharp_lq079l1sx01_ops = {
+ .enable_backlight = sharp_lq079l1sx01_enable_backlight,
+ .set_backlight = sharp_lq079l1sx01_set_backlight,
+ .get_display_timing = sharp_lq079l1sx01_timings,
+};
+
+static const struct udevice_id sharp_lq079l1sx01_ids[] = {
+ { .compatible = "sharp,lq079l1sx01" },
+ { }
+};
+
+U_BOOT_DRIVER(sharp_lq079l1sx01) = {
+ .name = "sharp_lq079l1sx01",
+ .id = UCLASS_PANEL,
+ .of_match = sharp_lq079l1sx01_ids,
+ .ops = &sharp_lq079l1sx01_ops,
+ .of_to_plat = sharp_lq079l1sx01_of_to_plat,
+ .probe = sharp_lq079l1sx01_probe,
+ .plat_auto = sizeof(struct mipi_dsi_panel_plat),
+ .priv_auto = sizeof(struct sharp_lq079l1sx01_priv),
+};
--
2.43.0
