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// SPDX-License-Identifier: GPL-2.0+
/*
* Hitachi TX10D07VM0BAA DSI panel driver
*
* Copyright (c) 2024 Svyatoslav Ryhel <[email protected]>
*/
#include <backlight.h>
#include <dm.h>
#include <panel.h>
#include <log.h>
#include <mipi_dsi.h>
#include <linux/delay.h>
#include <power/regulator.h>
#include <asm/gpio.h>
struct hitachi_tx10d07vm0baa_priv {
struct udevice *avci;
struct udevice *iovcc;
struct udevice *backlight;
struct gpio_desc reset_gpio;
};
static struct display_timing default_timing = {
.pixelclock.typ = 29816000,
.hactive.typ = 480,
.hfront_porch.typ = 10,
.hback_porch.typ = 10,
.hsync_len.typ = 10,
.vactive.typ = 800,
.vfront_porch.typ = 4,
.vback_porch.typ = 4,
.vsync_len.typ = 4,
};
#define dsi_generic_write_seq(dsi, cmd, seq...) do { \
static const u8 b[] = { cmd, seq }; \
int ret; \
ret = mipi_dsi_dcs_write_buffer(dsi, b, ARRAY_SIZE(b)); \
if (ret < 0) \
return ret; \
} while (0)
static int hitachi_tx10d07vm0baa_enable_backlight(struct udevice *dev)
{
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
struct mipi_dsi_device *dsi = plat->device;
int ret;
dsi_generic_write_seq(dsi, MIPI_DCS_SET_PARTIAL_AREA, 0x00,
0x00, 0x03, 0x1f);
dsi_generic_write_seq(dsi, MIPI_DCS_SET_SCROLL_AREA, 0x00,
0x00, 0x03, 0x20, 0x00, 0x00);
dsi_generic_write_seq(dsi, MIPI_DCS_SET_ADDRESS_MODE, 0x0a);
dsi_generic_write_seq(dsi, MIPI_DCS_SET_SCROLL_START, 0x00,
0x00);
ret = mipi_dsi_dcs_set_pixel_format(dsi, MIPI_DCS_PIXEL_FMT_24BIT);
if (ret) {
log_debug("%s: failed to set pixel format: %d\n", __func__, ret);
return ret;
}
ret = mipi_dsi_dcs_set_tear_scanline(dsi, 0x00);
if (ret) {
log_debug("%s: failed to set tear scanline: %d\n", __func__, ret);
return ret;
}
dsi_generic_write_seq(dsi, 0x71, 0x00); /* Ex_Vsync_en */
dsi_generic_write_seq(dsi, 0xb2, 0x00); /* VCSEL */
dsi_generic_write_seq(dsi, 0xb4, 0xaa); /* setvgmpm */
dsi_generic_write_seq(dsi, 0xb5, 0x33); /* rbias1 */
dsi_generic_write_seq(dsi, 0xb6, 0x03); /* rbias2 */
dsi_generic_write_seq(dsi, 0xb7, 0x1a, 0x33, 0x03, 0x03,
0x03, 0x00, 0x00, 0x01, 0x02, 0x00,
0x00, 0x04, 0x00, 0x01, 0x01, 0x01); /* set_ddvdhp */
dsi_generic_write_seq(dsi, 0xb8, 0x1c, 0x53, 0x03, 0x03,
0x00, 0x01, 0x02, 0x00, 0x00, 0x04,
0x00, 0x01, 0x01); /* set_ddvdhm */
dsi_generic_write_seq(dsi, 0xb9, 0x0a, 0x01, 0x01, 0x00,
0x00, 0x00, 0x02, 0x00, 0x02, 0x01); /* set_vgh */
dsi_generic_write_seq(dsi, 0xba, 0x0f, 0x01, 0x01, 0x00,
0x00, 0x00, 0x02, 0x00, 0x02, 0x01); /* set_vgl */
dsi_generic_write_seq(dsi, 0xbb, 0x00, 0x00, 0x00, 0x00,
0x01, 0x02, 0x01); /* set_vcl */
dsi_generic_write_seq(dsi, 0xc1, 0x01); /* number of lines */
dsi_generic_write_seq(dsi, 0xc2, 0x08); /* number of fp lines */
dsi_generic_write_seq(dsi, 0xc3, 0x04); /* gateset(1) */
dsi_generic_write_seq(dsi, 0xc4, 0x4c); /* 1h period */
dsi_generic_write_seq(dsi, 0xc5, 0x03); /* source precharge */
dsi_generic_write_seq(dsi, 0xc6, 0xc4, 0x04); /* source precharge timing */
dsi_generic_write_seq(dsi, 0xc7, 0x00); /* source level */
dsi_generic_write_seq(dsi, 0xc8, 0x02); /* number of bp lines */
dsi_generic_write_seq(dsi, 0xc9, 0x10); /* gateset(2) */
dsi_generic_write_seq(dsi, 0xca, 0x04, 0x04); /* gateset(3) */
dsi_generic_write_seq(dsi, 0xcb, 0x03); /* gateset(4) */
dsi_generic_write_seq(dsi, 0xcc, 0x12); /* gateset(5) */
dsi_generic_write_seq(dsi, 0xcd, 0x12); /* gateset(6) */
dsi_generic_write_seq(dsi, 0xce, 0x30); /* gateset(7) */
dsi_generic_write_seq(dsi, 0xcf, 0x30); /* gateset(8) */
dsi_generic_write_seq(dsi, 0xd0, 0x40); /* gateset(9) */
dsi_generic_write_seq(dsi, 0xd1, 0x22); /* flhw */
dsi_generic_write_seq(dsi, 0xd2, 0x22); /* vckhw */
dsi_generic_write_seq(dsi, 0xd3, 0x04); /* flt */
dsi_generic_write_seq(dsi, 0xd4, 0x14); /* tctrl */
dsi_generic_write_seq(dsi, 0xd6, 0x02); /* dotinv */
dsi_generic_write_seq(dsi, 0xd7, 0x00); /* on/off sequence period */
dsi_generic_write_seq(dsi, 0xd8, 0x01, 0x05, 0x06, 0x0d,
0x18, 0x09, 0x22, 0x23, 0x00); /* ponseqa */
dsi_generic_write_seq(dsi, 0xd9, 0x24, 0x01); /* ponseqb */
dsi_generic_write_seq(dsi, 0xde, 0x09, 0x0f, 0x21, 0x12,
0x04); /* ponseqc */
dsi_generic_write_seq(dsi, 0xdf, 0x02, 0x06, 0x06, 0x06,
0x06, 0x00); /* pofseqa */
dsi_generic_write_seq(dsi, 0xe0, 0x01); /* pofseqb */
ret = mipi_dsi_dcs_set_display_brightness(dsi, 0xff);
if (ret) {
log_debug("%s: failed to set display brightness: %d\n", __func__, ret);
return ret;
}
dsi_generic_write_seq(dsi, MIPI_DCS_WRITE_CONTROL_DISPLAY, 0x40);
dsi_generic_write_seq(dsi, 0xe2, 0x00, 0x00); /* cabc pwm */
dsi_generic_write_seq(dsi, 0xe3, 0x03); /* cabc */
dsi_generic_write_seq(dsi, 0xe4, 0x66, 0x7b, 0x90, 0xa5,
0xbb, 0xc7, 0xe1, 0xe5); /* cabc brightness */
dsi_generic_write_seq(dsi, 0xe5, 0xc5, 0xc5, 0xc9, 0xc9,
0xd1, 0xe1, 0xf1, 0xfe); /* cabc brightness */
dsi_generic_write_seq(dsi, 0xe7, 0x2a); /* cabc */
dsi_generic_write_seq(dsi, 0xe8, 0x00); /* brt_rev */
dsi_generic_write_seq(dsi, 0xe9, 0x00); /* tefreq */
dsi_generic_write_seq(dsi, 0xea, 0x01); /* high speed ram */
dsi_generic_write_seq(dsi, 0xeb, 0x00, 0x33, 0x0e, 0x15,
0xb7, 0x78, 0x88, 0x0f); /* gamma setting r pos */
dsi_generic_write_seq(dsi, 0xec, 0x00, 0x33, 0x0e, 0x15,
0xb7, 0x78, 0x88, 0x0f); /* gamma setting r neg */
dsi_generic_write_seq(dsi, 0xed, 0x00, 0x33, 0x0e, 0x15,
0xb7, 0x78, 0x88, 0x0f); /* gamma setting g pos */
dsi_generic_write_seq(dsi, 0xee, 0x00, 0x33, 0x0e, 0x15,
0xb7, 0x78, 0x88, 0x0f); /* gamma setting g neg */
dsi_generic_write_seq(dsi, 0xef, 0x00, 0x33, 0x0e, 0x15,
0xb7, 0x78, 0x88, 0x0f); /* gamma setting b pos */
dsi_generic_write_seq(dsi, 0xf0, 0x00, 0x33, 0x0e, 0x15,
0xb7, 0x78, 0x88, 0x0f); /* gamma setting b neg */
ret = mipi_dsi_dcs_exit_sleep_mode(dsi);
if (ret) {
log_debug("%s: failed to exit sleep mode: %d\n", __func__, ret);
return ret;
}
mdelay(110);
ret = mipi_dsi_dcs_set_display_on(dsi);
if (ret) {
log_debug("%s: failed to set display on: %d\n", __func__, ret);
return ret;
}
return 0;
}
static int hitachi_tx10d07vm0baa_set_backlight(struct udevice *dev, int percent)
{
struct hitachi_tx10d07vm0baa_priv *priv = dev_get_priv(dev);
int ret;
ret = backlight_enable(priv->backlight);
if (ret)
return ret;
return backlight_set_brightness(priv->backlight, percent);
}
static int hitachi_tx10d07vm0baa_timings(struct udevice *dev,
struct display_timing *timing)
{
memcpy(timing, &default_timing, sizeof(*timing));
return 0;
}
static int hitachi_tx10d07vm0baa_of_to_plat(struct udevice *dev)
{
struct hitachi_tx10d07vm0baa_priv *priv = dev_get_priv(dev);
int 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 = device_get_supply_regulator(dev, "avci-supply", &priv->avci);
if (ret) {
log_debug("%s: cannot get avci-supply: ret = %d\n",
__func__, ret);
return ret;
}
ret = device_get_supply_regulator(dev, "iovcc-supply", &priv->iovcc);
if (ret) {
log_debug("%s: cannot get iovcc-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 decode reset-gpios (%d)\n",
__func__, ret);
return ret;
}
return 0;
}
static int hitachi_tx10d07vm0baa_hw_init(struct udevice *dev)
{
struct hitachi_tx10d07vm0baa_priv *priv = dev_get_priv(dev);
int ret;
ret = dm_gpio_set_value(&priv->reset_gpio, 1);
if (ret) {
log_debug("%s: error entering reset (%d)\n", __func__, ret);
return ret;
}
ret = regulator_set_enable_if_allowed(priv->iovcc, 1);
if (ret) {
log_debug("%s: enabling iovcc-supply failed (%d)\n",
__func__, ret);
return ret;
}
ret = regulator_set_enable_if_allowed(priv->avci, 1);
if (ret) {
log_debug("%s: enabling avci-supply failed (%d)\n",
__func__, ret);
return ret;
}
mdelay(25);
ret = dm_gpio_set_value(&priv->reset_gpio, 0);
if (ret) {
log_debug("%s: error exiting reset (%d)\n", __func__, ret);
return ret;
}
mdelay(5);
return 0;
}
static int hitachi_tx10d07vm0baa_probe(struct udevice *dev)
{
struct mipi_dsi_panel_plat *plat = dev_get_plat(dev);
/* fill characteristics of DSI data link */
plat->lanes = 2;
plat->format = MIPI_DSI_FMT_RGB888;
plat->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_LPM;
return hitachi_tx10d07vm0baa_hw_init(dev);
}
static const struct panel_ops hitachi_tx10d07vm0baa_ops = {
.enable_backlight = hitachi_tx10d07vm0baa_enable_backlight,
.set_backlight = hitachi_tx10d07vm0baa_set_backlight,
.get_display_timing = hitachi_tx10d07vm0baa_timings,
};
static const struct udevice_id hitachi_tx10d07vm0baa_ids[] = {
{ .compatible = "hit,tx10d07vm0baa" },
{ }
};
U_BOOT_DRIVER(hitachi_tx10d07vm0baa) = {
.name = "hitachi_tx10d07vm0baa",
.id = UCLASS_PANEL,
.of_match = hitachi_tx10d07vm0baa_ids,
.ops = &hitachi_tx10d07vm0baa_ops,
.of_to_plat = hitachi_tx10d07vm0baa_of_to_plat,
.probe = hitachi_tx10d07vm0baa_probe,
.plat_auto = sizeof(struct mipi_dsi_panel_plat),
.priv_auto = sizeof(struct hitachi_tx10d07vm0baa_priv),
};
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