video: panel: add Sony L4F00430T01 panel driver
Sony L4F00430T01 LCD module is found in Samsung Galaxy R. The panel has a WVGA resolution (480x800) and is setup over SPI, video data comes from RGB. Signed-off-by: Ion Agorria <ion@agorria.com> Reviewed-by: Svyatoslav Ryhel <clamor95@gmail.com> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
This commit is contained in:
Ion Agorria
committed by
Svyatoslav Ryhel
Svyatoslav Ryhel
parent
aa291c5f8b
commit
649d9c38a8
@@ -691,6 +691,15 @@ config VIDEO_LCD_HITACHI_TX18D42VM
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lcd controller which needs to be initialized over SPI, once that is
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done they work like a regular LVDS panel.
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config VIDEO_LCD_SONY_L4F00430T01
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tristate "Sony L4F00430T01 480x800 LCD panel support"
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depends on PANEL
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help
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Say Y here if you want to enable support for Sony L4F00430T01
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LCD module found in Samsung Galaxy R. The panel has a
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WVGA resolution (480x800) and is setup over SPI, video
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data comes from RGB.
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config VIDEO_LCD_SPI_CS
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string "SPI CS pin for LCD related config job"
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depends on VIDEO_LCD_SSD2828 || VIDEO_LCD_HITACHI_TX18D42VM
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@@ -74,6 +74,7 @@ obj-$(CONFIG_VIDEO_LCD_SHARP_LQ079L1SX01) += sharp-lq079l1sx01.o
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obj-$(CONFIG_VIDEO_LCD_SHARP_LQ101R1SX01) += sharp-lq101r1sx01.o
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obj-$(CONFIG_VIDEO_LCD_SSD2828) += ssd2828.o
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obj-$(CONFIG_VIDEO_LCD_TDO_TL070WSH30) += tdo-tl070wsh30.o
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obj-$(CONFIG_VIDEO_LCD_SONY_L4F00430T01) += sony-l4f00430t01.o
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obj-$(CONFIG_VIDEO_MCDE_SIMPLE) += mcde_simple.o
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obj-${CONFIG_VIDEO_MESON} += meson/
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obj-${CONFIG_VIDEO_MIPI_DSI} += mipi_dsi.o
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210
drivers/video/sony-l4f00430t01.c
Normal file
210
drivers/video/sony-l4f00430t01.c
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@@ -0,0 +1,210 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2025 Ion Agorria <ion@agorria.com>
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*/
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#include <backlight.h>
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#include <dm.h>
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#include <panel.h>
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#include <log.h>
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#include <spi.h>
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#include <mipi_display.h>
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#include <linux/delay.h>
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#include <power/regulator.h>
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#include <asm/gpio.h>
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#define SONY_L4F00430T01_DCS_CMD 0
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#define SONY_L4F00430T01_DCS_DATA 1
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struct sony_l4f00430t01_priv {
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struct udevice *vdd1v8;
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struct udevice *vdd3v0;
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struct udevice *backlight;
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struct gpio_desc reset_gpio;
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};
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static struct display_timing default_timing = {
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.pixelclock.typ = 24000000,
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.hactive.typ = 480,
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.hfront_porch.typ = 10,
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.hback_porch.typ = 20,
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.hsync_len.typ = 10,
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.vactive.typ = 800,
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.vfront_porch.typ = 3,
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.vback_porch.typ = 4,
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.vsync_len.typ = 2,
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.flags = DISPLAY_FLAGS_HSYNC_LOW | DISPLAY_FLAGS_VSYNC_LOW |
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DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_NEGEDGE,
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};
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static int sony_l4f00430t01_write(struct udevice *dev, u8 cmd, const u8 *seq, int len)
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{
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u8 data[2];
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int i, ret;
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data[0] = SONY_L4F00430T01_DCS_CMD;
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data[1] = cmd;
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ret = dm_spi_xfer(dev, 9, &data, NULL, SPI_XFER_ONCE);
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if (ret)
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return ret;
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for (i = 0; i < len; i++) {
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data[0] = SONY_L4F00430T01_DCS_DATA;
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data[1] = seq[i];
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ret = dm_spi_xfer(dev, 9, &data, NULL, SPI_XFER_ONCE);
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if (ret)
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return ret;
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}
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return 0;
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}
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#define sony_l4f00430t01_write_seq(dev, cmd, seq...) do { \
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static const u8 b[] = { seq }; \
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sony_l4f00430t01_write(dev, cmd, b, ARRAY_SIZE(b)); \
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} while (0)
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static int sony_l4f00430t01_enable_backlight(struct udevice *dev)
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{
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sony_l4f00430t01_write_seq(dev, MIPI_DCS_SET_ADDRESS_MODE, 0xd4);
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mdelay(25);
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sony_l4f00430t01_write_seq(dev, MIPI_DCS_EXIT_SLEEP_MODE);
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mdelay(150);
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sony_l4f00430t01_write_seq(dev, MIPI_DCS_SET_DISPLAY_ON);
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return 0;
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}
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static int sony_l4f00430t01_set_backlight(struct udevice *dev, int percent)
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{
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struct sony_l4f00430t01_priv *priv = dev_get_priv(dev);
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int ret;
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ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev,
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"backlight", &priv->backlight);
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if (ret) {
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log_debug("%s: cannot get backlight: ret = %d\n",
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__func__, ret);
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return ret;
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}
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ret = backlight_enable(priv->backlight);
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if (ret)
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return ret;
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return backlight_set_brightness(priv->backlight, percent);
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}
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static int sony_l4f00430t01_get_display_timing(struct udevice *dev,
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struct display_timing *timing)
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{
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memcpy(timing, &default_timing, sizeof(*timing));
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return 0;
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}
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static int sony_l4f00430t01_of_to_plat(struct udevice *dev)
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{
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struct sony_l4f00430t01_priv *priv = dev_get_priv(dev);
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int ret;
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ret = device_get_supply_regulator(dev, "vdd1v8-supply", &priv->vdd1v8);
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if (ret) {
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log_debug("%s: cannot get vdd1v8-supply: ret = %d\n",
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__func__, ret);
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return ret;
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}
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ret = device_get_supply_regulator(dev, "vdd3v0-supply", &priv->vdd3v0);
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if (ret) {
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log_debug("%s: cannot get vdd3v0-supply: ret = %d\n",
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__func__, ret);
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return ret;
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}
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ret = gpio_request_by_name(dev, "reset-gpios", 0,
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&priv->reset_gpio, GPIOD_IS_OUT);
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if (ret) {
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log_debug("%s: cannot decode reset-gpios (%d)\n",
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__func__, ret);
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return ret;
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}
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return 0;
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}
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static int sony_l4f00430t01_hw_init(struct udevice *dev)
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{
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struct sony_l4f00430t01_priv *priv = dev_get_priv(dev);
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int ret;
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ret = dm_gpio_set_value(&priv->reset_gpio, 1);
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if (ret) {
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log_debug("%s: error entering reset (%d)\n", __func__, ret);
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return ret;
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}
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ret = regulator_set_enable_if_allowed(priv->vdd1v8, 1);
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if (ret) {
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log_debug("%s: enabling vdd1v8-supply failed (%d)\n",
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__func__, ret);
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return ret;
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}
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ret = regulator_set_enable_if_allowed(priv->vdd3v0, 1);
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if (ret) {
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log_debug("%s: enabling vdd3v0-supply failed (%d)\n",
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__func__, ret);
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return ret;
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}
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mdelay(15);
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ret = dm_gpio_set_value(&priv->reset_gpio, 0);
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if (ret) {
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log_debug("%s: error exiting reset (%d)\n", __func__, ret);
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return ret;
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}
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mdelay(100);
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return 0;
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}
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static int sony_l4f00430t01_probe(struct udevice *dev)
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{
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struct spi_slave *slave = dev_get_parent_priv(dev);
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int ret;
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ret = spi_claim_bus(slave);
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if (ret) {
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log_err("SPI bus allocation failed (%d)\n", ret);
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return ret;
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}
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return sony_l4f00430t01_hw_init(dev);
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}
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static const struct panel_ops sony_l4f00430t01_ops = {
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.enable_backlight = sony_l4f00430t01_enable_backlight,
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.set_backlight = sony_l4f00430t01_set_backlight,
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.get_display_timing = sony_l4f00430t01_get_display_timing,
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};
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static const struct udevice_id sony_l4f00430t01_ids[] = {
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{ .compatible = "sony,l4f00430t01" },
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{ }
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};
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U_BOOT_DRIVER(sony_l4f00430t01) = {
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.name = "sony_l4f00430t01",
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.id = UCLASS_PANEL,
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.of_match = sony_l4f00430t01_ids,
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.ops = &sony_l4f00430t01_ops,
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.of_to_plat = sony_l4f00430t01_of_to_plat,
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.probe = sony_l4f00430t01_probe,
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.priv_auto = sizeof(struct sony_l4f00430t01_priv),
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};
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