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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2016 Google, Inc
* Written by Simon Glass <sjg@chromium.org>
*/
#include <common.h>
#include <backlight.h>
#include <dm.h>
#include <log.h>
#include <mipi_dsi.h>
#include <panel.h>
#include <asm/gpio.h>
#include <power/regulator.h>
struct simple_panel_priv {
struct udevice *reg;
struct udevice *backlight;
struct gpio_desc enable;
};
/* List of supported DSI panels */
enum {
PANEL_NON_DSI,
PANASONIC_VVX10F004B00,
};
static const struct mipi_dsi_panel_plat panasonic_vvx10f004b00 = {
.mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_SYNC_PULSE |
MIPI_DSI_CLOCK_NON_CONTINUOUS,
.format = MIPI_DSI_FMT_RGB888,
.lanes = 4,
};
static int simple_panel_enable_backlight(struct udevice *dev)
{
struct simple_panel_priv *priv = dev_get_priv(dev);
int ret;
debug("%s: start, backlight = '%s'\n", __func__, priv->backlight->name);
dm_gpio_set_value(&priv->enable, 1);
ret = backlight_enable(priv->backlight);
debug("%s: done, ret = %d\n", __func__, ret);
if (ret)
return ret;
return 0;
}
static int simple_panel_set_backlight(struct udevice *dev, int percent)
{
struct simple_panel_priv *priv = dev_get_priv(dev);
int ret;
debug("%s: start, backlight = '%s'\n", __func__, priv->backlight->name);
dm_gpio_set_value(&priv->enable, 1);
ret = backlight_set_brightness(priv->backlight, percent);
debug("%s: done, ret = %d\n", __func__, ret);
if (ret)
return ret;
return 0;
}
static int simple_panel_get_display_timing(struct udevice *dev,
struct display_timing *timings)
{
const void *blob = gd->fdt_blob;
return fdtdec_decode_display_timing(blob, dev_of_offset(dev),
0, timings);
}
static int simple_panel_of_to_plat(struct udevice *dev)
{
struct simple_panel_priv *priv = dev_get_priv(dev);
int ret;
if (CONFIG_IS_ENABLED(DM_REGULATOR)) {
ret = uclass_get_device_by_phandle(UCLASS_REGULATOR, dev,
"power-supply", &priv->reg);
if (ret) {
debug("%s: Warning: cannot get power supply: ret=%d\n",
__func__, ret);
if (ret != -ENOENT)
return ret;
}
}
ret = uclass_get_device_by_phandle(UCLASS_PANEL_BACKLIGHT, dev,
"backlight", &priv->backlight);
if (ret) {
debug("%s: Cannot get backlight: ret=%d\n", __func__, ret);
if (ret != -ENOENT)
return log_ret(ret);
}
ret = gpio_request_by_name(dev, "enable-gpios", 0, &priv->enable,
GPIOD_IS_OUT);
if (ret) {
debug("%s: Warning: cannot get enable GPIO: ret=%d\n",
__func__, ret);
if (ret != -ENOENT)
return log_ret(ret);
}
return 0;
}
static int simple_panel_probe(struct udevice *dev)
{
struct simple_panel_priv *priv = dev_get_priv(dev);
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
const u32 dsi_data = dev_get_driver_data(dev);
int ret;
if (CONFIG_IS_ENABLED(DM_REGULATOR) && priv->reg) {
debug("%s: Enable regulator '%s'\n", __func__, priv->reg->name);
ret = regulator_set_enable(priv->reg, true);
if (ret)
return ret;
}
switch (dsi_data) {
case PANASONIC_VVX10F004B00:
memcpy(plat, &panasonic_vvx10f004b00,
sizeof(panasonic_vvx10f004b00));
break;
case PANEL_NON_DSI:
default:
break;
}
return 0;
}
static const struct panel_ops simple_panel_ops = {
.enable_backlight = simple_panel_enable_backlight,
.set_backlight = simple_panel_set_backlight,
.get_display_timing = simple_panel_get_display_timing,
};
static const struct udevice_id simple_panel_ids[] = {
{ .compatible = "simple-panel" },
{ .compatible = "auo,b133xtn01" },
{ .compatible = "auo,b116xw03" },
{ .compatible = "auo,b133htn01" },
{ .compatible = "boe,nv140fhmn49" },
{ .compatible = "lg,lb070wv8" },
{ .compatible = "sharp,lq123p1jx31" },
{ .compatible = "boe,nv101wxmn51" },
{ .compatible = "panasonic,vvx10f004b00",
.data = PANASONIC_VVX10F004B00 },
{ }
};
U_BOOT_DRIVER(simple_panel) = {
.name = "simple_panel",
.id = UCLASS_PANEL,
.of_match = simple_panel_ids,
.ops = &simple_panel_ops,
.of_to_plat = simple_panel_of_to_plat,
.probe = simple_panel_probe,
.priv_auto = sizeof(struct simple_panel_priv),
.plat_auto = sizeof(struct mipi_dsi_panel_plat),
};
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