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kernel_samsung_a34x-permissive/drivers/gpu/drm/panel/panel-truly-ft8756-vdo.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2019 MediaTek Inc.
*/
#include <drm/drmP.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_panel.h>
#include <linux/backlight.h>
#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <video/mipi_display.h>
#include <video/of_videomode.h>
#include <video/videomode.h>
#include <linux/module.h>
#include <linux/of_platform.h>
#include <linux/of_graph.h>
#include <linux/platform_device.h>
#define CONFIG_MTK_PANEL_EXT
#if defined(CONFIG_MTK_PANEL_EXT)
#include "../mediatek/mtk_drm_graphics_base.h"
#include "../mediatek/mtk_log.h"
#include "../mediatek/mtk_panel_ext.h"
#endif
#ifdef CONFIG_MTK_ROUND_CORNER_SUPPORT
#include "../mediatek/mtk_corner_pattern/mtk_data_hw_roundedpattern.h"
#endif
#if defined(CONFIG_RT4831A_I2C)
#include "../../../misc/mediatek/gate_ic/gate_i2c.h"
#endif
struct lcm {
struct device *dev;
struct drm_panel panel;
struct backlight_device *backlight;
struct gpio_desc *reset_gpio;
struct gpio_desc *pm_enable_gpio;
struct gpio_desc *bias_pos, *bias_neg;
bool prepared;
bool enabled;
int error;
};
#define lcm_dcs_write_seq(ctx, seq...) \
({ \
const u8 d[] = {seq}; \
BUILD_BUG_ON_MSG(ARRAY_SIZE(d) > 64, \
"DCS sequence too big for stack"); \
lcm_dcs_write(ctx, d, ARRAY_SIZE(d)); \
})
#define lcm_dcs_write_seq_static(ctx, seq...) \
({ \
static const u8 d[] = {seq}; \
lcm_dcs_write(ctx, d, ARRAY_SIZE(d)); \
})
static inline struct lcm *panel_to_lcm(struct drm_panel *panel)
{
return container_of(panel, struct lcm, panel);
}
static void lcm_dcs_write(struct lcm *ctx, const void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
ssize_t ret;
char *addr;
if (ctx->error < 0)
return;
addr = (char *)data;
if ((int)*addr < 0xB0)
ret = mipi_dsi_dcs_write_buffer(dsi, data, len);
else
ret = mipi_dsi_generic_write(dsi, data, len);
if (ret < 0) {
dev_err(ctx->dev, "error %zd writing seq: %ph\n", ret, data);
ctx->error = ret;
}
}
#ifdef PANEL_SUPPORT_READBACK
static int lcm_dcs_read(struct lcm *ctx, u8 cmd, void *data, size_t len)
{
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
ssize_t ret;
if (ctx->error < 0)
return 0;
ret = mipi_dsi_dcs_read(dsi, cmd, data, len);
if (ret < 0) {
dev_err(ctx->dev, "error %d reading dcs seq:(%#x)\n", ret, cmd);
ctx->error = ret;
}
return ret;
}
static void lcm_panel_get_data(struct lcm *ctx)
{
u8 buffer[3] = {0};
static int ret;
if (ret == 0) {
ret = lcm_dcs_read(ctx, 0x0A, buffer, 1);
dev_info(ctx->dev, "return %d data(0x%08x) to dsi engine\n",
ret, buffer[0] | (buffer[1] << 8));
}
}
#endif
#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
static struct regulator *disp_bias_pos;
static struct regulator *disp_bias_neg;
static int lcm_panel_bias_regulator_init(void)
{
static int regulator_inited;
int ret = 0;
if (regulator_inited)
return ret;
/* please only get regulator once in a driver */
disp_bias_pos = regulator_get(NULL, "dsv_pos");
if (IS_ERR(disp_bias_pos)) { /* handle return value */
ret = PTR_ERR(disp_bias_pos);
pr_err("get dsv_pos fail, error: %d\n", ret);
return ret;
}
disp_bias_neg = regulator_get(NULL, "dsv_neg");
if (IS_ERR(disp_bias_neg)) { /* handle return value */
ret = PTR_ERR(disp_bias_neg);
pr_err("get dsv_neg fail, error: %d\n", ret);
return ret;
}
regulator_inited = 1;
return ret; /* must be 0 */
}
static int lcm_panel_bias_enable(void)
{
int ret = 0;
int retval = 0;
lcm_panel_bias_regulator_init();
/* set voltage with min & max*/
ret = regulator_set_voltage(disp_bias_pos, 5400000, 5400000);
if (ret < 0)
pr_err("set voltage disp_bias_pos fail, ret = %d\n", ret);
retval |= ret;
ret = regulator_set_voltage(disp_bias_neg, 5400000, 5400000);
if (ret < 0)
pr_err("set voltage disp_bias_neg fail, ret = %d\n", ret);
retval |= ret;
/* enable regulator */
ret = regulator_enable(disp_bias_pos);
if (ret < 0)
pr_err("enable regulator disp_bias_pos fail, ret = %d\n", ret);
retval |= ret;
ret = regulator_enable(disp_bias_neg);
if (ret < 0)
pr_err("enable regulator disp_bias_neg fail, ret = %d\n", ret);
retval |= ret;
return retval;
}
static int lcm_panel_bias_disable(void)
{
int ret = 0;
int retval = 0;
lcm_panel_bias_regulator_init();
ret = regulator_disable(disp_bias_neg);
if (ret < 0)
pr_err("disable regulator disp_bias_neg fail, ret = %d\n", ret);
retval |= ret;
ret = regulator_disable(disp_bias_pos);
if (ret < 0)
pr_err("disable regulator disp_bias_pos fail, ret = %d\n", ret);
retval |= ret;
return retval;
}
#endif
static void lcm_panel_init(struct lcm *ctx)
{
ctx->reset_gpio =
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(ctx->dev, "%s: cannot get reset_gpio %ld\n",
__func__, PTR_ERR(ctx->reset_gpio));
return;
}
gpiod_set_value(ctx->reset_gpio, 0);
#if BITS_PER_LONG == 32
mdelay(15 * 1000);
#else
udelay(15 * 1000);
#endif
gpiod_set_value(ctx->reset_gpio, 1);
udelay(1 * 1000);
gpiod_set_value(ctx->reset_gpio, 0);
#if BITS_PER_LONG == 32
mdelay(10 * 1000);
#else
udelay(10 * 1000);
#endif
gpiod_set_value(ctx->reset_gpio, 1);
#if BITS_PER_LONG == 32
mdelay(10 * 1000);
#else
udelay(10 * 1000);
#endif
devm_gpiod_put(ctx->dev, ctx->reset_gpio);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x87, 0x56, 0x01);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x87, 0x56);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA1);
lcm_dcs_write_seq_static(ctx, 0xB3, 0x04, 0x38, 0x08, 0xFC, 0x00, 0xFC);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x00, 0x92, 0x00, 0x08, 0x00, 0x24);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x00, 0x92, 0x00, 0x08, 0x00, 0x24);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x01, 0x24, 0x00, 0x08, 0x00, 0x24);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x00, 0x92, 0x00, 0x08, 0x24);
lcm_dcs_write_seq_static(ctx, 0x00, 0xC1);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x00, 0xD9, 0x00, 0xA5, 0x00, 0x91,
0x00, 0xF8);
lcm_dcs_write_seq_static(ctx, 0x00, 0xD7);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x00, 0x91, 0x00, 0x08, 0x00, 0x24);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA3);
lcm_dcs_write_seq_static(ctx, 0xC1, 0x00, 0x25, 0x00, 0x25, 0x00, 0x02);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x01, 0x81, 0x09, 0x13, 0x00, 0xC8,
0x00, 0xE0, 0x00, 0x85, 0x00, 0x95, 0x00, 0x64,
0x00, 0x70);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x00, 0x8E, 0x0C, 0xDF, 0x00, 0x8E,
0x80, 0x09, 0x13, 0x00, 0x04, 0x00, 0x22, 0x20,
0x20);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x00, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x22, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0xD1);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0xE1);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x08, 0x02, 0x4D, 0x02, 0x4D, 0x02,
0x4D, 0x00, 0x00, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0xF1);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x12, 0x09, 0x0C, 0x01, 0x1B, 0x01,
0x1C, 0x01, 0x37);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xCF, 0x00, 0x00, 0xB0, 0xB4);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB5);
lcm_dcs_write_seq_static(ctx, 0xCF, 0x04, 0x04, 0xB8, 0xBC);
lcm_dcs_write_seq_static(ctx, 0x00, 0xC0);
lcm_dcs_write_seq_static(ctx, 0xCF, 0x08, 0x08, 0xD2, 0xD6);
lcm_dcs_write_seq_static(ctx, 0x00, 0xC5);
lcm_dcs_write_seq_static(ctx, 0xCF, 0x00, 0x00, 0x08, 0x0C);
lcm_dcs_write_seq_static(ctx, 0x00, 0xE8);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x40);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xc2, 0x84, 0x01, 0x3A, 0x3A);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xC2, 0x02, 0x01, 0x03, 0x03);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xC2, 0x84, 0x04, 0x00, 0x03, 0x8E, 0x83,
0x04, 0x00, 0x03, 0x8E, 0x82, 0x04, 0x00, 0x03,
0x8E);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xC2, 0x81, 0x04, 0x00, 0x03, 0x8E);
lcm_dcs_write_seq_static(ctx, 0x00, 0xE0);
lcm_dcs_write_seq_static(ctx, 0xC2, 0x33, 0x33, 0x33, 0x33, 0x33, 0x33,
0x00, 0x00, 0x12, 0x00, 0x05, 0x02, 0x03,
0x03);
lcm_dcs_write_seq_static(ctx, 0x00, 0xC0);
lcm_dcs_write_seq_static(ctx, 0xC3, 0x99, 0x99, 0x99, 0x99);
lcm_dcs_write_seq_static(ctx, 0x00, 0xD0);
lcm_dcs_write_seq_static(ctx, 0xC3, 0x45, 0x00, 0x00, 0x05, 0x45, 0x00,
0x00, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xCB, 0xC1, 0xC1, 0x00, 0xC1, 0xC1, 0x00,
0x00, 0xC1, 0xFE, 0x00, 0xC1, 0x00, 0xFD, 0xC1,
0x00, 0xC0);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xCB, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xCB, 0x00, 0x00, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xCB, 0x55, 0x55, 0x95, 0x55);
lcm_dcs_write_seq_static(ctx, 0x00, 0xC0);
lcm_dcs_write_seq_static(ctx, 0xCB, 0x10, 0x51, 0x84, 0x50);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xCC, 0x00, 0x00, 0x00, 0x25, 0x25, 0x29,
0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x22, 0x24,
0x06, 0x06);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xCC, 0x08, 0x08, 0x24, 0x02, 0x12, 0x01,
0x29, 0x29);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xCD, 0x00, 0x00, 0x00, 0x25, 0x25, 0x29,
0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x22, 0x24,
0x07, 0x07);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xCD, 0x09, 0x09, 0x24, 0x02, 0x12, 0x01,
0x29, 0x29);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xCC, 0x00, 0x00, 0x00, 0x25, 0x25, 0x29,
0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x24, 0x23,
0x09, 0x09);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xCC, 0x07, 0x07, 0x24, 0x12, 0x02, 0x01,
0x29, 0x29);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xCD, 0x00, 0x00, 0x00, 0x25, 0x25, 0x29,
0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x24, 0x23,
0x08, 0x08);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB0);
lcm_dcs_write_seq_static(ctx, 0xCD, 0x06, 0x06, 0x24, 0x12, 0x02, 0x01,
0x29, 0x29);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xA7, 0x10);
lcm_dcs_write_seq_static(ctx, 0x00, 0x82);
lcm_dcs_write_seq_static(ctx, 0xA7, 0x33, 0x02);
lcm_dcs_write_seq_static(ctx, 0x00, 0x85);
lcm_dcs_write_seq_static(ctx, 0xA7, 0x10);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xC3, 0x35, 0x02, 0x41, 0x35, 0x53, 0x14,
0x20, 0x00, 0x00, 0x00, 0x13, 0x50, 0x24, 0x42,
0x05, 0x31);
lcm_dcs_write_seq_static(ctx, 0x00, 0x85);
lcm_dcs_write_seq_static(ctx, 0xC4, 0x1C);
lcm_dcs_write_seq_static(ctx, 0x00, 0x97);
lcm_dcs_write_seq_static(ctx, 0xC4, 0x01);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA0);
lcm_dcs_write_seq_static(ctx, 0xC4, 0x2D, 0xD2, 0x2D);
lcm_dcs_write_seq_static(ctx, 0x00, 0x93);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x23);
lcm_dcs_write_seq_static(ctx, 0x00, 0x97);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x23);
lcm_dcs_write_seq_static(ctx, 0x00, 0x9A);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x23);
lcm_dcs_write_seq_static(ctx, 0x00, 0x9C);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x23);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB6);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x1E, 0x1E);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB8);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x19, 0x19);
lcm_dcs_write_seq_static(ctx, 0x00, 0x9B);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x4B);
lcm_dcs_write_seq_static(ctx, 0x00, 0x93);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0x9D);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x49);
lcm_dcs_write_seq_static(ctx, 0x00, 0x82);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0x8C);
lcm_dcs_write_seq_static(ctx, 0xC3, 0x00, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0x84);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x28, 0x28);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA4);
lcm_dcs_write_seq_static(ctx, 0xD7, 0x00);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x59, 0x59);
lcm_dcs_write_seq_static(ctx, 0x00, 0x84);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x59, 0x59, 0x59);
lcm_dcs_write_seq_static(ctx, 0x00, 0x96);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x59);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA6);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x59);
lcm_dcs_write_seq_static(ctx, 0x00, 0xCA);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x80);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB1);
lcm_dcs_write_seq_static(ctx, 0xF5, 0x1F);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0xD8, 0x2F, 0x2F);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0xD9, 0x23, 0x23);
lcm_dcs_write_seq_static(ctx, 0x00, 0x86);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x01, 0x01, 0x01, 0x01, 0x10, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0x96);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x01, 0x01, 0x01, 0x01, 0x10, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA6);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x01, 0x01, 0x01, 0x01, 0x1D, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0xE9);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x01, 0x01, 0x01, 0x01, 0x10, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0xA3);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x01, 0x01, 0x01, 0x01, 0x10, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB3);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x01, 0x01, 0x01, 0x01, 0x10, 0x05);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(
ctx, 0xE1, 0x06, 0x0A, 0x0A, 0x0F, 0x6C, 0x1A, 0x21, 0x28, 0x32,
0x61, 0x3A, 0x41, 0x47, 0x4D, 0xAC, 0x51, 0x5A, 0x62, 0x69, 0xA6,
0x70, 0x78, 0x7F, 0x88, 0xCD, 0x92, 0x98, 0x9E, 0xA6, 0x48, 0xAE,
0xB9, 0xC6, 0xCE, 0x97, 0xD9, 0xE7, 0xF0, 0xF5, 0xAB);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(
ctx, 0xE2, 0x0D, 0x0A, 0x0A, 0x0F, 0x6C, 0x1A, 0x21, 0x28, 0x32,
0x61, 0x3A, 0x41, 0x47, 0x4D, 0xAC, 0x51, 0x5A, 0x62, 0x69, 0xA6,
0x70, 0x78, 0x7F, 0x88, 0xCD, 0x92, 0x98, 0x9E, 0xA6, 0x48, 0xAE,
0xB9, 0xC6, 0xCE, 0x97, 0xD9, 0xE7, 0xF0, 0xF5, 0xAB);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(
ctx, 0xE3, 0x06, 0x0A, 0x0A, 0x0F, 0x6C, 0x1A, 0x21, 0x28, 0x32,
0x61, 0x3A, 0x41, 0x47, 0x4D, 0xAC, 0x51, 0x5A, 0x62, 0x69, 0xA6,
0x70, 0x78, 0x7F, 0x88, 0xCD, 0x92, 0x98, 0x9E, 0xA6, 0x48, 0xAE,
0xB9, 0xC6, 0xCE, 0x97, 0xD9, 0xE7, 0xF0, 0xF5, 0xAB);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(
ctx, 0xE4, 0x0D, 0x0A, 0x0A, 0x0F, 0x6C, 0x1A, 0x21, 0x28, 0x32,
0x61, 0x3A, 0x41, 0x47, 0x4D, 0xAC, 0x51, 0x5A, 0x62, 0x69, 0xA6,
0x70, 0x78, 0x7F, 0x88, 0xCD, 0x92, 0x98, 0x9E, 0xA6, 0x48, 0xAE,
0xB9, 0xC6, 0xCE, 0x97, 0xD9, 0xE7, 0xF0, 0xF5, 0xAB);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(
ctx, 0xE5, 0x06, 0x0A, 0x0A, 0x0F, 0x6C, 0x1A, 0x21, 0x28, 0x32,
0x61, 0x3A, 0x41, 0x47, 0x4D, 0xAC, 0x51, 0x5A, 0x62, 0x69, 0xA6,
0x70, 0x78, 0x7F, 0x88, 0xCD, 0x92, 0x98, 0x9E, 0xA6, 0x48, 0xAE,
0xB9, 0xC6, 0xCE, 0x97, 0xD9, 0xE7, 0xF0, 0xF5, 0xAB);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(
ctx, 0xE6, 0x0D, 0x0A, 0x0A, 0x0F, 0x6C, 0x1A, 0x21, 0x28, 0x32,
0x61, 0x3A, 0x41, 0x47, 0x4D, 0xAC, 0x51, 0x5A, 0x62, 0x69, 0xA6,
0x70, 0x78, 0x7F, 0x88, 0xCD, 0x92, 0x98, 0x9E, 0xA6, 0x48, 0xAE,
0xB9, 0xC6, 0xCE, 0x97, 0xD9, 0xE7, 0xF0, 0xF5, 0xAB);
lcm_dcs_write_seq_static(ctx, 0x00, 0xCC);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x10);
lcm_dcs_write_seq_static(ctx, 0x00, 0xB3);
lcm_dcs_write_seq_static(ctx, 0xC5, 0xD1);
lcm_dcs_write_seq_static(ctx, 0x00, 0x80);
lcm_dcs_write_seq_static(ctx, 0xCA, 0xCE, 0xBB, 0xAB, 0x9F, 0x96, 0x8E,
0x87, 0x82, 0x80, 0x80, 0x80, 0x80);
lcm_dcs_write_seq_static(ctx, 0x00, 0x90);
lcm_dcs_write_seq_static(ctx, 0xCA, 0xFD, 0xFF, 0xEA, 0xFC, 0xFF, 0xCC,
0xFA, 0xFF, 0x66);
lcm_dcs_write_seq_static(ctx, 0x00, 0x00);
lcm_dcs_write_seq_static(ctx, 0xFF, 0xFF, 0xFF, 0xFF);
lcm_dcs_write_seq_static(ctx, 0x51, 0xff, 0x0f);
lcm_dcs_write_seq_static(ctx, 0x53, 0x24);
lcm_dcs_write_seq_static(ctx, 0x55, 0x01);
lcm_dcs_write_seq_static(ctx, 0x35);
lcm_dcs_write_seq_static(ctx, 0x11);
msleep(180);
lcm_dcs_write_seq_static(ctx, 0x29);
msleep(100);
}
static int lcm_disable(struct drm_panel *panel)
{
struct lcm *ctx = panel_to_lcm(panel);
if (!ctx->enabled)
return 0;
if (ctx->backlight) {
ctx->backlight->props.power = FB_BLANK_POWERDOWN;
backlight_update_status(ctx->backlight);
}
ctx->enabled = false;
return 0;
}
static int lcm_unprepare(struct drm_panel *panel)
{
struct lcm *ctx = panel_to_lcm(panel);
if (!ctx->prepared)
return 0;
lcm_dcs_write_seq_static(ctx, 0x28);
msleep(50);
lcm_dcs_write_seq_static(ctx, 0x10);
msleep(150);
ctx->error = 0;
ctx->prepared = false;
#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
lcm_panel_bias_disable();
#elif defined(CONFIG_RT4831A_I2C)
/*this is rt4831a*/
_gate_ic_i2c_panel_bias_enable(0);
_gate_ic_Power_off();
#else
ctx->reset_gpio =
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(ctx->dev, "%s: cannot get reset_gpio %ld\n",
__func__, PTR_ERR(ctx->reset_gpio));
return PTR_ERR(ctx->reset_gpio);
}
gpiod_set_value(ctx->reset_gpio, 0);
devm_gpiod_put(ctx->dev, ctx->reset_gpio);
ctx->bias_neg = devm_gpiod_get_index(ctx->dev,
"bias", 1, GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias_neg)) {
dev_err(ctx->dev, "%s: cannot get bias_neg %ld\n",
__func__, PTR_ERR(ctx->bias_neg));
return PTR_ERR(ctx->bias_neg);
}
gpiod_set_value(ctx->bias_neg, 0);
devm_gpiod_put(ctx->dev, ctx->bias_neg);
udelay(1000);
ctx->bias_pos = devm_gpiod_get_index(ctx->dev,
"bias", 0, GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias_pos)) {
dev_err(ctx->dev, "%s: cannot get bias_pos %ld\n",
__func__, PTR_ERR(ctx->bias_pos));
return PTR_ERR(ctx->bias_pos);
}
gpiod_set_value(ctx->bias_pos, 0);
devm_gpiod_put(ctx->dev, ctx->bias_pos);
#endif
return 0;
}
static int lcm_prepare(struct drm_panel *panel)
{
struct lcm *ctx = panel_to_lcm(panel);
int ret;
pr_info("%s\n", __func__);
if (ctx->prepared)
return 0;
#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
lcm_panel_bias_enable();
#elif defined(CONFIG_RT4831A_I2C)
_gate_ic_Power_on();
/*rt4831a co-work with leds_i2c*/
_gate_ic_i2c_panel_bias_enable(1);
#else
ctx->bias_pos = devm_gpiod_get_index(ctx->dev,
"bias", 0, GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias_pos)) {
dev_err(ctx->dev, "%s: cannot get bias_pos %ld\n",
__func__, PTR_ERR(ctx->bias_pos));
return PTR_ERR(ctx->bias_pos);
}
gpiod_set_value(ctx->bias_pos, 1);
devm_gpiod_put(ctx->dev, ctx->bias_pos);
udelay(2000);
ctx->bias_neg = devm_gpiod_get_index(ctx->dev,
"bias", 1, GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias_neg)) {
dev_err(ctx->dev, "%s: cannot get bias_neg %ld\n",
__func__, PTR_ERR(ctx->bias_neg));
return PTR_ERR(ctx->bias_neg);
}
gpiod_set_value(ctx->bias_neg, 1);
devm_gpiod_put(ctx->dev, ctx->bias_neg);
#endif
lcm_panel_init(ctx);
ret = ctx->error;
if (ret < 0)
lcm_unprepare(panel);
ctx->prepared = true;
#if defined(CONFIG_MTK_PANEL_EXT)
mtk_panel_tch_rst(panel);
#endif
#ifdef PANEL_SUPPORT_READBACK
lcm_panel_get_data(ctx);
#endif
return ret;
}
static int lcm_enable(struct drm_panel *panel)
{
struct lcm *ctx = panel_to_lcm(panel);
if (ctx->enabled)
return 0;
if (ctx->backlight) {
ctx->backlight->props.power = FB_BLANK_UNBLANK;
backlight_update_status(ctx->backlight);
}
ctx->enabled = true;
return 0;
}
#define HFP (30)
#define HSA (16)
#define HBP (14)
#define VFP (70)
#define VSA (16)
#define VBP (16)
#define VAC (2300)
#define HAC (1080)
static struct drm_display_mode default_mode = {
.clock = 164297,
.hdisplay = HAC,
.hsync_start = HAC + HFP,
.hsync_end = HAC + HFP + HSA,
.htotal = HAC + HFP + HSA + HBP,
.vdisplay = VAC,
.vsync_start = VAC + VFP,
.vsync_end = VAC + VFP + VSA,
.vtotal = VAC + VFP + VSA + VBP,
.vrefresh = 60,
};
#if defined(CONFIG_MTK_PANEL_EXT)
static int panel_ext_reset(struct drm_panel *panel, int on)
{
struct lcm *ctx = panel_to_lcm(panel);
ctx->reset_gpio =
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(ctx->dev, "%s: cannot get reset_gpio %ld\n",
__func__, PTR_ERR(ctx->reset_gpio));
return PTR_ERR(ctx->reset_gpio);
}
gpiod_set_value(ctx->reset_gpio, on);
devm_gpiod_put(ctx->dev, ctx->reset_gpio);
return 0;
}
static int panel_ata_check(struct drm_panel *panel)
{
struct lcm *ctx = panel_to_lcm(panel);
struct mipi_dsi_device *dsi = to_mipi_dsi_device(ctx->dev);
unsigned char data[3] = {0x00, 0x00, 0x00};
unsigned char id[3] = {0x40, 0x00, 0x00};
ssize_t ret;
ret = mipi_dsi_dcs_read(dsi, 0x4, data, 3);
if (ret < 0) {
pr_err("%s error\n", __func__);
return 0;
}
DDPINFO("ATA read data %x %x %x\n", data[0], data[1], data[2]);
if (data[0] == id[0] &&
data[1] == id[1] &&
data[2] == id[2])
return 1;
DDPINFO("ATA expect read data is %x %x %x\n",
id[0], id[1], id[2]);
return 0;
}
static int lcm_setbacklight_cmdq(void *dsi, dcs_write_gce cb, void *handle,
unsigned int level)
{
char bl_tb0[] = {0x51, 0xFF};
bl_tb0[1] = level;
if (!cb)
return -1;
cb(dsi, handle, bl_tb0, ARRAY_SIZE(bl_tb0));
return 0;
}
static int lcm_get_virtual_heigh(void)
{
return VAC;
}
static int lcm_get_virtual_width(void)
{
return HAC;
}
static struct mtk_panel_params ext_params = {
.pll_clk = 530,
.vfp_low_power = 840,
.cust_esd_check = 0,
.esd_check_enable = 1,
.lcm_esd_check_table[0] = {
.cmd = 0x0a,
.count = 1,
.para_list[0] = 0x9c,
},
.dyn = {
.switch_en = 1,
.pll_clk = 535,
.hfp = 32,
.vfp = 93,
},
};
static struct mtk_panel_funcs ext_funcs = {
.reset = panel_ext_reset,
.set_backlight_cmdq = lcm_setbacklight_cmdq,
.ata_check = panel_ata_check,
.get_virtual_heigh = lcm_get_virtual_heigh,
.get_virtual_width = lcm_get_virtual_width,
};
#endif
struct panel_desc {
const struct drm_display_mode *modes;
unsigned int num_modes;
unsigned int bpc;
struct {
unsigned int width;
unsigned int height;
} size;
struct {
unsigned int prepare;
unsigned int enable;
unsigned int disable;
unsigned int unprepare;
} delay;
};
static int lcm_get_modes(struct drm_panel *panel)
{
struct drm_display_mode *mode;
mode = drm_mode_duplicate(panel->drm, &default_mode);
if (!mode) {
dev_err(panel->drm->dev, "failed to add mode %ux%ux@%u\n",
default_mode.hdisplay, default_mode.vdisplay,
default_mode.vrefresh);
return -ENOMEM;
}
drm_mode_set_name(mode);
mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
drm_mode_probed_add(panel->connector, mode);
panel->connector->display_info.width_mm = 68;
panel->connector->display_info.height_mm = 146;
return 1;
}
static const struct drm_panel_funcs lcm_drm_funcs = {
.disable = lcm_disable,
.unprepare = lcm_unprepare,
.prepare = lcm_prepare,
.enable = lcm_enable,
.get_modes = lcm_get_modes,
};
static int lcm_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct lcm *ctx;
struct device_node *backlight;
int ret;
struct device_node *dsi_node, *remote_node = NULL, *endpoint = NULL;
dsi_node = of_get_parent(dev->of_node);
if (dsi_node) {
endpoint = of_graph_get_next_endpoint(dsi_node, NULL);
if (endpoint) {
remote_node = of_graph_get_remote_port_parent(endpoint);
if (!remote_node) {
pr_info("No panel connected,skip probe lcm\n");
return -ENODEV;
}
pr_info("device node name:%s\n", remote_node->name);
}
}
if (remote_node != dev->of_node) {
pr_info("%s+ skip probe due to not current lcm\n", __func__);
return -ENODEV;
}
ctx = devm_kzalloc(dev, sizeof(struct lcm), GFP_KERNEL);
if (!ctx)
return -ENOMEM;
mipi_dsi_set_drvdata(dsi, ctx);
ctx->dev = dev;
dsi->lanes = 4;
dsi->format = MIPI_DSI_FMT_RGB888;
dsi->mode_flags = MIPI_DSI_MODE_VIDEO
| MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_EOT_PACKET
| MIPI_DSI_CLOCK_NON_CONTINUOUS;
backlight = of_parse_phandle(dev->of_node, "backlight", 0);
if (backlight) {
ctx->backlight = of_find_backlight_by_node(backlight);
of_node_put(backlight);
if (!ctx->backlight)
return -EPROBE_DEFER;
}
ctx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_err(dev, "%s: cannot get reset-gpios %ld\n",
__func__, PTR_ERR(ctx->reset_gpio));
return PTR_ERR(ctx->reset_gpio);
}
devm_gpiod_put(dev, ctx->reset_gpio);
#ifndef CONFIG_RT4831A_I2C
#if defined(CONFIG_RT5081_PMU_DSV) || defined(CONFIG_MT6370_PMU_DSV)
lcm_panel_bias_enable();
#else
ctx->bias_pos = devm_gpiod_get_index(dev, "bias", 0, GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias_pos)) {
dev_err(dev, "%s: cannot get bias-pos 0 %ld\n",
__func__, PTR_ERR(ctx->bias_pos));
return PTR_ERR(ctx->bias_pos);
}
devm_gpiod_put(dev, ctx->bias_pos);
ctx->bias_neg = devm_gpiod_get_index(dev, "bias", 1, GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias_neg)) {
dev_err(dev, "%s: cannot get bias-neg 1 %ld\n",
__func__, PTR_ERR(ctx->bias_neg));
return PTR_ERR(ctx->bias_neg);
}
devm_gpiod_put(dev, ctx->bias_neg);
#endif
#endif
ctx->prepared = true;
ctx->enabled = true;
drm_panel_init(&ctx->panel);
ctx->panel.dev = dev;
ctx->panel.funcs = &lcm_drm_funcs;
ret = drm_panel_add(&ctx->panel);
if (ret < 0)
return ret;
ret = mipi_dsi_attach(dsi);
if (ret < 0)
drm_panel_remove(&ctx->panel);
#if defined(CONFIG_MTK_PANEL_EXT)
mtk_panel_tch_handle_reg(&ctx->panel);
ret = mtk_panel_ext_create(dev, &ext_params, &ext_funcs, &ctx->panel);
if (ret < 0)
return ret;
#endif
pr_info("%s-\n", __func__);
return ret;
}
static int lcm_remove(struct mipi_dsi_device *dsi)
{
struct lcm *ctx = mipi_dsi_get_drvdata(dsi);
mipi_dsi_detach(dsi);
drm_panel_remove(&ctx->panel);
return 0;
}
static const struct of_device_id lcm_of_match[] = {
{ .compatible = "truly,ft8756,vdo", },
{ }
};
MODULE_DEVICE_TABLE(of, lcm_of_match);
static struct mipi_dsi_driver lcm_driver = {
.probe = lcm_probe,
.remove = lcm_remove,
.driver = {
.name = "panel-truly-ft8756-vdo",
.owner = THIS_MODULE,
.of_match_table = lcm_of_match,
},
};
module_mipi_dsi_driver(lcm_driver);
MODULE_AUTHOR("Tai-Hua Tseng <tai-hua.tseng@mediatek.com>");
MODULE_DESCRIPTION("truly ft8756 VDO LCD Panel Driver");
MODULE_LICENSE("GPL v2");
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