mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 05:04:26 +00:00
b0db69b4e1
Something was wrong in the merge process into the mainline. Some added patches access driver structure fields and functions that have been modified by previous patches. The patch renames: - dev_get_platdata to dev_get_plat - dev_get_uclass_platdata to dev_get_uclass_plat - ofdata_to_platdata to of_to_plat - plat_data_alloc_size to plat_auto - priv_auto_alloc_size to priv_auto - video_uc_platdata to video_uc_plat Signed-off-by: Dario Binacchi <dariobin@libero.it>
155 lines
3.5 KiB
C
155 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2020 BayLibre, SAS
|
|
* Author: Neil Armstrong <narmstrong@baylibre.com>
|
|
*/
|
|
#include <common.h>
|
|
#include <backlight.h>
|
|
#include <dm.h>
|
|
#include <mipi_dsi.h>
|
|
#include <panel.h>
|
|
#include <asm/gpio.h>
|
|
#include <dm/device_compat.h>
|
|
#include <linux/delay.h>
|
|
#include <power/regulator.h>
|
|
|
|
struct tl070wsh30_panel_priv {
|
|
struct udevice *reg;
|
|
struct udevice *backlight;
|
|
struct gpio_desc reset;
|
|
};
|
|
|
|
static const struct display_timing default_timing = {
|
|
.pixelclock.typ = 47250000,
|
|
.hactive.typ = 1024,
|
|
.hfront_porch.typ = 46,
|
|
.hback_porch.typ = 100,
|
|
.hsync_len.typ = 80,
|
|
.vactive.typ = 600,
|
|
.vfront_porch.typ = 5,
|
|
.vback_porch.typ = 20,
|
|
.vsync_len.typ = 5,
|
|
.flags = DISPLAY_FLAGS_HSYNC_HIGH | DISPLAY_FLAGS_VSYNC_HIGH,
|
|
};
|
|
|
|
static int tl070wsh30_panel_enable_backlight(struct udevice *dev)
|
|
{
|
|
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
|
|
struct mipi_dsi_device *device = plat->device;
|
|
struct tl070wsh30_panel_priv *priv = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
ret = mipi_dsi_attach(device);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = mipi_dsi_dcs_exit_sleep_mode(device);
|
|
if (ret)
|
|
return ret;
|
|
|
|
mdelay(200);
|
|
|
|
ret = mipi_dsi_dcs_set_display_on(device);
|
|
if (ret)
|
|
return ret;
|
|
|
|
mdelay(20);
|
|
|
|
ret = backlight_enable(priv->backlight);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tl070wsh30_panel_get_display_timing(struct udevice *dev,
|
|
struct display_timing *timings)
|
|
{
|
|
memcpy(timings, &default_timing, sizeof(*timings));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tl070wsh30_panel_of_to_plat(struct udevice *dev)
|
|
{
|
|
struct tl070wsh30_panel_priv *priv = dev_get_priv(dev);
|
|
int ret;
|
|
|
|
if (IS_ENABLED(CONFIG_DM_REGULATOR)) {
|
|
ret = device_get_supply_regulator(dev, "power-supply",
|
|
&priv->reg);
|
|
if (ret && ret != -ENOENT) {
|
|
dev_err(dev, "Warning: cannot get power supply\n");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
ret = gpio_request_by_name(dev, "reset-gpios", 0, &priv->reset,
|
|
GPIOD_IS_OUT);
|
|
if (ret) {
|
|
dev_err(dev, "Warning: cannot get reset GPIO\n");
|
|
if (ret != -ENOENT)
|
|
return ret;
|
|
}
|
|
|
|
ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev,
|
|
"backlight", &priv->backlight);
|
|
if (ret) {
|
|
dev_err(dev, "Cannot get backlight: ret=%d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tl070wsh30_panel_probe(struct udevice *dev)
|
|
{
|
|
struct tl070wsh30_panel_priv *priv = dev_get_priv(dev);
|
|
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
|
|
int ret;
|
|
|
|
if (IS_ENABLED(CONFIG_DM_REGULATOR) && priv->reg) {
|
|
ret = regulator_set_enable(priv->reg, true);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
mdelay(10);
|
|
|
|
/* reset panel */
|
|
dm_gpio_set_value(&priv->reset, true);
|
|
|
|
mdelay(10);
|
|
|
|
dm_gpio_set_value(&priv->reset, false);
|
|
|
|
/* 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_VIDEO_BURST |
|
|
MIPI_DSI_MODE_LPM;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct panel_ops tl070wsh30_panel_ops = {
|
|
.enable_backlight = tl070wsh30_panel_enable_backlight,
|
|
.get_display_timing = tl070wsh30_panel_get_display_timing,
|
|
};
|
|
|
|
static const struct udevice_id tl070wsh30_panel_ids[] = {
|
|
{ .compatible = "tdo,tl070wsh30" },
|
|
{ }
|
|
};
|
|
|
|
U_BOOT_DRIVER(tl070wsh30_panel) = {
|
|
.name = "tl070wsh30_panel",
|
|
.id = UCLASS_PANEL,
|
|
.of_match = tl070wsh30_panel_ids,
|
|
.ops = &tl070wsh30_panel_ops,
|
|
.of_to_plat = tl070wsh30_panel_of_to_plat,
|
|
.probe = tl070wsh30_panel_probe,
|
|
.plat_auto = sizeof(struct mipi_dsi_panel_plat),
|
|
.priv_auto = sizeof(struct tl070wsh30_panel_priv),
|
|
};
|