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kernel_samsung_a34x-permissive/drivers/gpu/drm/panel/panel-boe-nt36525b-hdp-dsi-vdo-lm36274.c
Fede2782 c05564c4d8
Import A346BXXU1AWB9 kernel source 
Android 13
2024-04-28 15:49:01 +02:00

961 lines
28 KiB
C
Executable file
Raw Blame History

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2022 MediaTek Inc.
*/
#include <linux/backlight.h>
#include <drm/drmP.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_panel.h>
#include <linux/gpio.h>
#include <linux/of_gpio.h>
#include <asm-generic/gpio.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_panel_ext.h"
#include "../mediatek/mtk_log.h"
#include "../mediatek/mtk_drm_graphics_base.h"
#endif
#ifdef CONFIG_MTK_ROUND_CORNER_SUPPORT
#include "../mediatek/mtk_corner_pattern/mtk_data_hw_roundedpattern.h"
#endif
#define ENABLE_MTK_LCD_DTS_CHECK_NVT
/*******************************************************/
/* Backlight Function */
/* Device Name : LM36274 */
/* Interface : I2C */
/* Enable Mode : 1 PIN for 5P9, 5N9 */
/*******************************************************/
#include <linux/i2c-dev.h>
#include <linux/i2c.h>
#define LCM_I2C_COMPATIBLE "mediatek,i2c_lcd_bias"
#define LCM_I2C_ID_NAME "nt36525b_lm36274"
static struct i2c_client *_lcm_i2c_client;
/*****************************************************************************
* Function Prototype
*****************************************************************************/
static int _lcm_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id);
static int _lcm_i2c_remove(struct i2c_client *client);
static int _lcm_i2c_write_bytes(unsigned char addr, unsigned char value);
/*****************************************************************************
* Data Structure
*****************************************************************************/
struct _lcm_i2c_dev {
struct i2c_client *client;
};
static const struct of_device_id _lcm_i2c_of_match[] = {
{ .compatible = LCM_I2C_COMPATIBLE, },
{},
};
static const struct i2c_device_id _lcm_i2c_id[] = {
{ LCM_I2C_ID_NAME, 0 },
{},
};
static struct i2c_driver _lcm_i2c_driver = {
.id_table = _lcm_i2c_id,
.probe = _lcm_i2c_probe,
.remove = _lcm_i2c_remove,
.driver = {
.owner = THIS_MODULE,
.name = LCM_I2C_ID_NAME,
.of_match_table = _lcm_i2c_of_match,
},
};
/*****************************************************************************
* Device Control Function
*****************************************************************************/
static void _lm36274_init(void)
{
_lcm_i2c_write_bytes(0x0C, 0x2C);
_lcm_i2c_write_bytes(0x0D, 0x26);
_lcm_i2c_write_bytes(0x0E, 0x26);
_lcm_i2c_write_bytes(0x09, 0xBE);
_lcm_i2c_write_bytes(0x02, 0x6B);
_lcm_i2c_write_bytes(0x03, 0x0D);
_lcm_i2c_write_bytes(0x11, 0x74);
_lcm_i2c_write_bytes(0x04, 0x05);
_lcm_i2c_write_bytes(0x05, 0xCC);
_lcm_i2c_write_bytes(0x10, 0x67);
_lcm_i2c_write_bytes(0x08, 0x13);
usleep_range(2000, 2001);
}
/*****************************************************************************
* I2C Interface Function
*****************************************************************************/
static int _lcm_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device_node *lcd_comp;
int ret;
pr_debug("[LCM][I2C][nt36525b] %s\n", __func__);
pr_debug("[LCM][I2C][nt36525b] NT: info==>name=%s addr=0x%x\n", client->name,
client->addr);
_lcm_i2c_client = client;
#ifdef ENABLE_MTK_LCD_DTS_CHECK_NVT
lcd_comp = of_find_compatible_node(NULL, NULL,
"boe,nt36525b,vdo");
if (lcd_comp) {
pr_info("nt36525b : %s : panel compatible match\n", __func__);
return 0;
}
pr_info("nt36525b : %s : panel compatible doesn't match\n", __func__);
return -EPERM;
#else
return 0;
#endif
}
static int _lcm_i2c_remove(struct i2c_client *client)
{
pr_info("[LCM][I2C][nt36525b] %s\n", __func__);
_lcm_i2c_client = NULL;
i2c_unregister_device(client);
return 0;
}
static int _lcm_i2c_write_bytes(unsigned char addr, unsigned char value)
{
int ret = 0;
struct i2c_client *client = _lcm_i2c_client;
char write_data[2] = { 0 };
if (client == NULL) {
pr_debug("ERROR!![nt36525b] _lcm_i2c_client is null\n");
return 0;
}
write_data[0] = addr;
write_data[1] = value;
ret = i2c_master_send(client, write_data, 2);
if (ret < 0)
pr_debug("[LCM][ERROR][nt36525b] _lcm_i2c write data fail !!\n");
return ret;
}
/*
* module load/unload record keeping
*/
static int __init _lcm_i2c_init(void)
{
pr_info("[LCM][I2C][nt36525b] %s\n", __func__);
i2c_add_driver(&_lcm_i2c_driver);
pr_info("[LCM][I2C][nt36525b] %s success\n", __func__);
return 0;
}
static void __exit _lcm_i2c_exit(void)
{
pr_info("[LCM][I2C][nt36525b] %s\n", __func__);
i2c_del_driver(&_lcm_i2c_driver);
}
module_init(_lcm_i2c_init);
module_exit(_lcm_i2c_exit);
/*******************************************************/
/* End Backlight function */
/*******************************************************/
struct lcm {
struct device *dev;
struct drm_panel panel;
struct backlight_device *backlight;
struct gpio_desc *reset_gpio;
struct gpio_desc *bias;
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_info(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_info(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
static void lcm_panel_init(struct lcm *ctx)
{
_lm36274_init();
ctx->reset_gpio =
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_info(ctx->dev, "%s: cannot get reset_gpio %ld\n",
__func__, PTR_ERR(ctx->reset_gpio));
return;
}
gpiod_set_value(ctx->reset_gpio, 0);
udelay(15 * 1000);
gpiod_set_value(ctx->reset_gpio, 1);
udelay(1 * 1000);
gpiod_set_value(ctx->reset_gpio, 0);
udelay(10 * 1000);
gpiod_set_value(ctx->reset_gpio, 1);
udelay(10 * 1000);
devm_gpiod_put(ctx->dev, ctx->reset_gpio);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x20);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01); /* Set extended command access */
lcm_dcs_write_seq_static(ctx, 0x01, 0x55);
lcm_dcs_write_seq_static(ctx, 0x03, 0x55);
lcm_dcs_write_seq_static(ctx, 0x05, 0x99);
lcm_dcs_write_seq_static(ctx, 0x07, 0x49);
lcm_dcs_write_seq_static(ctx, 0x08, 0xDD);
lcm_dcs_write_seq_static(ctx, 0x0E, 0x69);
lcm_dcs_write_seq_static(ctx, 0x0F, 0x7D);
lcm_dcs_write_seq_static(ctx, 0x94, 0x40);
lcm_dcs_write_seq_static(ctx, 0x95, 0xFA);
lcm_dcs_write_seq_static(ctx, 0x96, 0x13);
lcm_dcs_write_seq_static(ctx, 0x69, 0x91);
lcm_dcs_write_seq_static(ctx, 0x1F, 0x02); /* Set Power */
lcm_dcs_write_seq_static(ctx, 0xFF, 0x23);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01); /* Set extended command access */
lcm_dcs_write_seq_static(ctx, 0x00, 0x00); /* Dimming step to min. (2step) */
lcm_dcs_write_seq_static(ctx, 0x04, 0x00);
lcm_dcs_write_seq_static(ctx, 0x07, 0x20);
lcm_dcs_write_seq_static(ctx, 0x08, 0x0F); /* PWM Freq. 8KHz */
lcm_dcs_write_seq_static(ctx, 0x09, 0x00);
lcm_dcs_write_seq_static(ctx, 0x12, 0xAF);
lcm_dcs_write_seq_static(ctx, 0x15, 0xEF); /* CABC Control */
lcm_dcs_write_seq_static(ctx, 0x16, 0x0B);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x24);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01);
lcm_dcs_write_seq_static(ctx, 0x93, 0x0C);
lcm_dcs_write_seq_static(ctx, 0x94, 0x12);
lcm_dcs_write_seq_static(ctx, 0x00, 0x03);
lcm_dcs_write_seq_static(ctx, 0x01, 0x1E);
lcm_dcs_write_seq_static(ctx, 0x02, 0x06);
lcm_dcs_write_seq_static(ctx, 0x03, 0x21);
lcm_dcs_write_seq_static(ctx, 0x04, 0x04);
lcm_dcs_write_seq_static(ctx, 0x05, 0x05);
lcm_dcs_write_seq_static(ctx, 0x06, 0x1F);
lcm_dcs_write_seq_static(ctx, 0x07, 0x20);
lcm_dcs_write_seq_static(ctx, 0x08, 0x0C);
lcm_dcs_write_seq_static(ctx, 0x09, 0x0D);
lcm_dcs_write_seq_static(ctx, 0x0A, 0x0E);
lcm_dcs_write_seq_static(ctx, 0x0B, 0x0F);
lcm_dcs_write_seq_static(ctx, 0x0C, 0x03);
lcm_dcs_write_seq_static(ctx, 0x0D, 0x03);
lcm_dcs_write_seq_static(ctx, 0x0E, 0x03);
lcm_dcs_write_seq_static(ctx, 0x0F, 0x03);
lcm_dcs_write_seq_static(ctx, 0x10, 0x03);
lcm_dcs_write_seq_static(ctx, 0x11, 0x03);
lcm_dcs_write_seq_static(ctx, 0x12, 0x03);
lcm_dcs_write_seq_static(ctx, 0x13, 0x03);
lcm_dcs_write_seq_static(ctx, 0x14, 0x03);
lcm_dcs_write_seq_static(ctx, 0x15, 0x03);
lcm_dcs_write_seq_static(ctx, 0x16, 0x03);
lcm_dcs_write_seq_static(ctx, 0x17, 0x1E);
lcm_dcs_write_seq_static(ctx, 0x18, 0x07);
lcm_dcs_write_seq_static(ctx, 0x19, 0x21);
lcm_dcs_write_seq_static(ctx, 0x1A, 0x04);
lcm_dcs_write_seq_static(ctx, 0x1B, 0x05);
lcm_dcs_write_seq_static(ctx, 0x1C, 0x1F);
lcm_dcs_write_seq_static(ctx, 0x1D, 0x20);
lcm_dcs_write_seq_static(ctx, 0x1E, 0x0C);
lcm_dcs_write_seq_static(ctx, 0x1F, 0x0D);
lcm_dcs_write_seq_static(ctx, 0x20, 0x0E);
lcm_dcs_write_seq_static(ctx, 0x21, 0x0F);
lcm_dcs_write_seq_static(ctx, 0x22, 0x03);
lcm_dcs_write_seq_static(ctx, 0x23, 0x03);
lcm_dcs_write_seq_static(ctx, 0x24, 0x03);
lcm_dcs_write_seq_static(ctx, 0x25, 0x03);
lcm_dcs_write_seq_static(ctx, 0x26, 0x03);
lcm_dcs_write_seq_static(ctx, 0x27, 0x03);
lcm_dcs_write_seq_static(ctx, 0x28, 0x03);
lcm_dcs_write_seq_static(ctx, 0x29, 0x03);
lcm_dcs_write_seq_static(ctx, 0x2A, 0x03);
lcm_dcs_write_seq_static(ctx, 0x2B, 0x03);
lcm_dcs_write_seq_static(ctx, 0x2D, 0x0C);
lcm_dcs_write_seq_static(ctx, 0x41, 0x45);
lcm_dcs_write_seq_static(ctx, 0x42, 0x44);
lcm_dcs_write_seq_static(ctx, 0x45, 0x44);
lcm_dcs_write_seq_static(ctx, 0x46, 0x45);
lcm_dcs_write_seq_static(ctx, 0x47, 0x44);
lcm_dcs_write_seq_static(ctx, 0x48, 0x44);
lcm_dcs_write_seq_static(ctx, 0x49, 0x00);
lcm_dcs_write_seq_static(ctx, 0x4A, 0x02);
lcm_dcs_write_seq_static(ctx, 0x4B, 0xB5);
lcm_dcs_write_seq_static(ctx, 0x4C, 0x54);
lcm_dcs_write_seq_static(ctx, 0x2F, 0x0A);
lcm_dcs_write_seq_static(ctx, 0x30, 0x08);
lcm_dcs_write_seq_static(ctx, 0x31, 0x10);
lcm_dcs_write_seq_static(ctx, 0x32, 0x11);
lcm_dcs_write_seq_static(ctx, 0x33, 0x08);
lcm_dcs_write_seq_static(ctx, 0x34, 0x0A);
lcm_dcs_write_seq_static(ctx, 0x35, 0x11);
lcm_dcs_write_seq_static(ctx, 0x36, 0x00);
lcm_dcs_write_seq_static(ctx, 0x37, 0x44);
lcm_dcs_write_seq_static(ctx, 0x38, 0x44);
lcm_dcs_write_seq_static(ctx, 0x39, 0x00);
lcm_dcs_write_seq_static(ctx, 0x3A, 0x02);
lcm_dcs_write_seq_static(ctx, 0x3B, 0xB5);
lcm_dcs_write_seq_static(ctx, 0x3D, 0x54);
lcm_dcs_write_seq_static(ctx, 0x4D, 0x34);
lcm_dcs_write_seq_static(ctx, 0x4E, 0x12);
lcm_dcs_write_seq_static(ctx, 0x4F, 0x00);
lcm_dcs_write_seq_static(ctx, 0x50, 0x00);
lcm_dcs_write_seq_static(ctx, 0x51, 0x21);
lcm_dcs_write_seq_static(ctx, 0x52, 0x43);
lcm_dcs_write_seq_static(ctx, 0x53, 0x00);
lcm_dcs_write_seq_static(ctx, 0x54, 0x00);
lcm_dcs_write_seq_static(ctx, 0x55, 0x47);
lcm_dcs_write_seq_static(ctx, 0x56, 0x44);
lcm_dcs_write_seq_static(ctx, 0x58, 0x21);
lcm_dcs_write_seq_static(ctx, 0x59, 0x00);
lcm_dcs_write_seq_static(ctx, 0x5A, 0x22);
lcm_dcs_write_seq_static(ctx, 0x5B, 0x91);
lcm_dcs_write_seq_static(ctx, 0x5C, 0x08);
lcm_dcs_write_seq_static(ctx, 0x5D, 0x08);
lcm_dcs_write_seq_static(ctx, 0x5E, 0x04);
lcm_dcs_write_seq_static(ctx, 0x5F, 0x00);
lcm_dcs_write_seq_static(ctx, 0x60, 0x80);
lcm_dcs_write_seq_static(ctx, 0x61, 0x86);
lcm_dcs_write_seq_static(ctx, 0x64, 0x10);
lcm_dcs_write_seq_static(ctx, 0x80, 0x0B);
lcm_dcs_write_seq_static(ctx, 0x81, 0x05);
lcm_dcs_write_seq_static(ctx, 0x82, 0x0B);
lcm_dcs_write_seq_static(ctx, 0x83, 0x05);
lcm_dcs_write_seq_static(ctx, 0x84, 0x80);
lcm_dcs_write_seq_static(ctx, 0x85, 0x01);
lcm_dcs_write_seq_static(ctx, 0x86, 0x04);
lcm_dcs_write_seq_static(ctx, 0x88, 0x31);
lcm_dcs_write_seq_static(ctx, 0x89, 0x48);
lcm_dcs_write_seq_static(ctx, 0x8A, 0x88);
lcm_dcs_write_seq_static(ctx, 0x8D, 0x08);
lcm_dcs_write_seq_static(ctx, 0x8E, 0x08);
lcm_dcs_write_seq_static(ctx, 0x91, 0x40);
lcm_dcs_write_seq_static(ctx, 0x92, 0xB7);
lcm_dcs_write_seq_static(ctx, 0x98, 0x00);
lcm_dcs_write_seq_static(ctx, 0xAB, 0x00);
lcm_dcs_write_seq_static(ctx, 0xAD, 0x00);
lcm_dcs_write_seq_static(ctx, 0xAF, 0x04);
lcm_dcs_write_seq_static(ctx, 0xB0, 0x05);
lcm_dcs_write_seq_static(ctx, 0xB1, 0xB3);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x25);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01);
lcm_dcs_write_seq_static(ctx, 0x17, 0x82);
lcm_dcs_write_seq_static(ctx, 0x18, 0x06);
lcm_dcs_write_seq_static(ctx, 0x19, 0x0F);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x07);
lcm_dcs_write_seq_static(ctx, 0xC2, 0x84);
lcm_dcs_write_seq_static(ctx, 0xC6, 0x12);
lcm_dcs_write_seq_static(ctx, 0xCA, 0x1C);
lcm_dcs_write_seq_static(ctx, 0xCC, 0x1C);
lcm_dcs_write_seq_static(ctx, 0xCD, 0x00);
lcm_dcs_write_seq_static(ctx, 0xCE, 0x00);
lcm_dcs_write_seq_static(ctx, 0xD3, 0x11);
lcm_dcs_write_seq_static(ctx, 0xD4, 0xCC);
lcm_dcs_write_seq_static(ctx, 0xD5, 0x13);
lcm_dcs_write_seq_static(ctx, 0xD6, 0x7C);
lcm_dcs_write_seq_static(ctx, 0xD7, 0x11);
lcm_dcs_write_seq_static(ctx, 0x0A, 0x82);
lcm_dcs_write_seq_static(ctx, 0x0B, 0x31);
lcm_dcs_write_seq_static(ctx, 0x0C, 0x01);
lcm_dcs_write_seq_static(ctx, 0xFF,0x26);
lcm_dcs_write_seq_static(ctx, 0xFB,0x01);
lcm_dcs_write_seq_static(ctx, 0x00,0xA0);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x27);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01); /* Set extended command access */
lcm_dcs_write_seq_static(ctx, 0x13, 0x00);
lcm_dcs_write_seq_static(ctx, 0x15, 0xB4);
lcm_dcs_write_seq_static(ctx, 0x1F, 0x55);
lcm_dcs_write_seq_static(ctx, 0x26, 0x0F);
lcm_dcs_write_seq_static(ctx, 0xC0, 0x18);
lcm_dcs_write_seq_static(ctx, 0xC1, 0xEC);
lcm_dcs_write_seq_static(ctx, 0xC7, 0x03);
lcm_dcs_write_seq_static(ctx, 0xC2, 0x00);
lcm_dcs_write_seq_static(ctx, 0xC3, 0x00);
lcm_dcs_write_seq_static(ctx, 0xC4, 0xEC);
lcm_dcs_write_seq_static(ctx, 0xC5, 0x00);
lcm_dcs_write_seq_static(ctx, 0xC6, 0x00); /* Display a-Si and In-cell Timing Setting 4 */
lcm_dcs_write_seq_static(ctx, 0xFF, 0x20);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01);
lcm_dcs_write_seq_static(ctx, 0xB0, 0x00, 0x0B, 0x00, 0x16, 0x00, 0x2A,
0x00, 0x3C, 0x00, 0x4E, 0x00, 0x5F, 0x00, 0x6E, 0x00, 0x7C);
lcm_dcs_write_seq_static(ctx, 0xB1, 0x00, 0x89, 0x00, 0xBA, 0x00, 0xE1,
0x01, 0x24, 0x01, 0x57, 0x01, 0xA9, 0x01, 0xE9, 0x01, 0xEC);
lcm_dcs_write_seq_static(ctx, 0xB2, 0x02, 0x2C, 0x02, 0x74, 0x02, 0xA3,
0x02, 0xDD, 0x03, 0x05, 0x03, 0x33, 0x03, 0x43, 0x03, 0x52);
lcm_dcs_write_seq_static(ctx, 0xB3, 0x03, 0x63, 0x03, 0x77, 0x03, 0x8F,
0x03, 0xAA, 0x03, 0xD1, 0x03, 0xDB);
lcm_dcs_write_seq_static(ctx, 0xB4, 0x00, 0x0B, 0x00, 0x16, 0x00, 0x2A,
0x00, 0x3C, 0x00, 0x4E, 0x00, 0x5F, 0x00, 0x6E, 0x00, 0x7C);
lcm_dcs_write_seq_static(ctx, 0xB5, 0x00, 0x89, 0x00, 0xBA, 0x00, 0xE1,
0x01, 0x24, 0x01, 0x57, 0x01, 0xA9, 0x01, 0xE9, 0x01, 0xEC);
lcm_dcs_write_seq_static(ctx, 0xB6, 0x02, 0x2C, 0x02, 0x74, 0x02, 0xA3,
0x02, 0xDD, 0x03, 0x05, 0x03, 0x33, 0x03, 0x43, 0x03, 0x52);
lcm_dcs_write_seq_static(ctx, 0xB7, 0x03, 0x63, 0x03, 0x77, 0x03, 0x8F,
0x03, 0xAA, 0x03, 0xD1, 0x03, 0xDB);
lcm_dcs_write_seq_static(ctx, 0xB8, 0x00, 0x0B, 0x00, 0x16, 0x00, 0x2A,
0x00, 0x3C, 0x00, 0x4E, 0x00, 0x5F, 0x00, 0x6E, 0x00, 0x7C);
lcm_dcs_write_seq_static(ctx, 0xB9, 0x00, 0x89, 0x00, 0xBA, 0x00, 0xE1,
0x01, 0x24, 0x01, 0x57, 0x01, 0xA9, 0x01, 0xE9, 0x01, 0xEC);
lcm_dcs_write_seq_static(ctx, 0xBA, 0x02, 0x2C, 0x02, 0x74, 0x02, 0xA3,
0x02, 0xDD, 0x03, 0x05, 0x03, 0x33, 0x03, 0x43, 0x03, 0x52);
lcm_dcs_write_seq_static(ctx, 0xBB, 0x03, 0x63, 0x03, 0x77, 0x03, 0x8F,
0x03, 0xAA, 0x03, 0xD1, 0x03, 0xDB);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x21);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01);
lcm_dcs_write_seq_static(ctx, 0xB0, 0x00, 0x03, 0x00, 0x0E, 0x00, 0x22,
0x00, 0x34, 0x00, 0x46, 0x00, 0x57, 0x00, 0x66, 0x00, 0x74);
lcm_dcs_write_seq_static(ctx, 0xB1, 0x00, 0x81, 0x00, 0xB2, 0x00, 0xD9,
0x01, 0x1C, 0x01, 0x4F, 0x01, 0xA1, 0x01, 0xE1, 0x01, 0xE4);
lcm_dcs_write_seq_static(ctx, 0xB2, 0x02, 0x24, 0x02, 0x6C, 0x02, 0x9B,
0x02, 0xD5, 0x02, 0xFD, 0x03, 0x2B, 0x03, 0x3B, 0x03, 0x4A);
lcm_dcs_write_seq_static(ctx, 0xB3, 0x03, 0x5B, 0x03, 0x6F, 0x03, 0x87,
0x03, 0xA2, 0x03, 0xC9, 0x03, 0xD3);
lcm_dcs_write_seq_static(ctx, 0xB4, 0x00, 0x03, 0x00, 0x0E, 0x00, 0x22,
0x00, 0x34, 0x00, 0x46, 0x00, 0x57, 0x00, 0x66, 0x00, 0x74);
lcm_dcs_write_seq_static(ctx, 0xB5, 0x00, 0x81, 0x00, 0xB2, 0x00, 0xD9,
0x01, 0x1C, 0x01, 0x4F, 0x01, 0xA1, 0x01, 0xE1, 0x01, 0xE4);
lcm_dcs_write_seq_static(ctx, 0xB6, 0x02, 0x24, 0x02, 0x6C, 0x02, 0x9B,
0x02, 0xD5, 0x02, 0xFD, 0x03, 0x2B, 0x03, 0x3B, 0x03, 0x4A);
lcm_dcs_write_seq_static(ctx, 0xB7, 0x03, 0x5B, 0x03, 0x6F, 0x03, 0x87,
0x03, 0xA2, 0x03, 0xC9, 0x03, 0xD3);
lcm_dcs_write_seq_static(ctx, 0xB8, 0x00, 0x03, 0x00, 0x0E, 0x00, 0x22,
0x00, 0x34, 0x00, 0x46, 0x00, 0x57, 0x00, 0x66, 0x00, 0x74);
lcm_dcs_write_seq_static(ctx, 0xB9, 0x00, 0x81, 0x00, 0xB2, 0x00, 0xD9,
0x01, 0x1C, 0x01, 0x4F, 0x01, 0xA1, 0x01, 0xE1, 0x01, 0xE4);
lcm_dcs_write_seq_static(ctx, 0xBA, 0x02, 0x24, 0x02, 0x6C, 0x02, 0x9B,
0x02, 0xD5, 0x02, 0xFD, 0x03, 0x2B, 0x03, 0x3B, 0x03, 0x4A);
lcm_dcs_write_seq_static(ctx, 0xBB, 0x03, 0x5B, 0x03, 0x6F, 0x03, 0x87,
0x03, 0xA2, 0x03, 0xC9, 0x03, 0xD3);
lcm_dcs_write_seq_static(ctx, 0xFF, 0x10);
lcm_dcs_write_seq_static(ctx, 0xFB, 0x01);
lcm_dcs_write_seq_static(ctx, 0xBA, 0x03);
lcm_dcs_write_seq_static(ctx, 0x35, 0x00);
lcm_dcs_write_seq_static(ctx, 0x51, 0x01);
lcm_dcs_write_seq_static(ctx, 0x53, 0x2C);
lcm_dcs_write_seq_static(ctx, 0x55, 0x00);
lcm_dcs_write_seq_static(ctx, 0x68, 0x00, 0x01);
lcm_dcs_write_seq_static(ctx, 0x11); /* Set Sleep Out */
msleep(120);
lcm_dcs_write_seq_static(ctx, 0x29); /* Set Display On*/
msleep(50);
lcm_dcs_write_seq_static(ctx, 0x51, 0xFF); /* Set Display On*/
}
static int lcm_disable(struct drm_panel *panel)
{
struct lcm *ctx = panel_to_lcm(panel);
if (!ctx->enabled)
return 0;
lcm_dcs_write_seq_static(ctx, 0x28);
msleep(50);
lcm_dcs_write_seq_static(ctx, 0x10);
msleep(150);
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;
pr_info("%s\n", __func__);
ctx->error = 0;
ctx->prepared = false;
ctx->reset_gpio =
devm_gpiod_get(ctx->dev, "reset", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->reset_gpio)) {
dev_info(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 =
devm_gpiod_get(ctx->dev, "bias", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias)) {
dev_info(ctx->dev, "%s: cannot get bias %ld\n",
__func__, PTR_ERR(ctx->bias));
return PTR_ERR(ctx->bias);
}
gpiod_set_value(ctx->bias, 0);
devm_gpiod_put(ctx->dev, ctx->bias);
udelay(1000);
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;
ctx->bias =
devm_gpiod_get(ctx->dev, "bias", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias)) {
dev_info(ctx->dev, "%s: cannot get bias %ld\n",
__func__, PTR_ERR(ctx->bias));
return PTR_ERR(ctx->bias);
}
gpiod_set_value(ctx->bias, 1);
devm_gpiod_put(ctx->dev, ctx->bias);
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 (96)
#define HSA (2)
#define HBP (94)
#define VFP (12)
#define VSA (2)
#define VBP (252)
#define VAC (1560)
#define HAC (720)
static u32 fake_heigh = VAC;
static u32 fake_width = HAC;
static bool need_fake_resolution;
static struct drm_display_mode default_mode = {
.clock = 163406,
.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_info(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] = {0x00, 0x00, 0x00};
ssize_t ret;
pr_info("%s success\n", __func__);
return 1;
}
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 = 320,
.vfp_low_power = 12,
.cust_esd_check = 0,
.esd_check_enable = 0,
.lcm_esd_check_table[0] = {
.cmd = 0x0a,
.count = 1,
.para_list[0] = 0x9c,
},
};
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 void change_drm_disp_mode_params(struct drm_display_mode *mode)
{
if (fake_heigh > 0 && fake_heigh < VAC) {
mode->vdisplay = fake_heigh;
mode->vsync_start = fake_heigh + VFP;
mode->vsync_end = fake_heigh + VFP + VSA;
mode->vtotal = fake_heigh + VFP + VSA + VBP;
}
if (fake_width > 0 && fake_width < HAC) {
mode->hdisplay = fake_width;
mode->hsync_start = fake_width + HFP;
mode->hsync_end = fake_width + HFP + HSA;
mode->htotal = fake_width + HFP + HSA + HBP;
}
}
static int lcm_get_modes(struct drm_panel *panel)
{
struct drm_display_mode *mode;
if (need_fake_resolution)
change_drm_disp_mode_params(&default_mode);
mode = drm_mode_duplicate(panel->drm, &default_mode);
if (!mode) {
dev_info(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 = 64;
panel->connector->display_info.height_mm = 129;
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 void check_is_need_fake_resolution(struct device *dev)
{
unsigned int ret = 0;
ret = of_property_read_u32(dev->of_node, "fake_heigh", &fake_heigh);
if (ret)
need_fake_resolution = false;
ret = of_property_read_u32(dev->of_node, "fake_width", &fake_width);
if (ret)
need_fake_resolution = false;
if (fake_heigh > 0 && fake_heigh < VAC)
need_fake_resolution = true;
if (fake_width > 0 && fake_width < HAC)
need_fake_resolution = true;
}
static int lcm_probe(struct mipi_dsi_device *dsi)
{
struct device *dev = &dsi->dev;
struct lcm *ctx;
struct device_node *backlight;
struct device_node *lcd_comp;
int lcd_id_pins = 0;
int ret;
#ifdef ENABLE_MTK_LCD_DTS_CHECK_NVT
lcd_comp = of_find_compatible_node(NULL, NULL,
"boe,nt36525b,vdo");
if (!lcd_comp) {
pr_info("nt36525b : %s : panel compatible doesn't match\n", __func__);
return -1;
}
#endif
pr_info("%s-nt36525b IN\n", __func__);
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_info(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);
ctx->bias =
devm_gpiod_get(ctx->dev, "bias", GPIOD_OUT_HIGH);
if (IS_ERR(ctx->bias)) {
dev_info(ctx->dev, "%s: cannot get bias %ld\n",
__func__, PTR_ERR(ctx->bias));
return PTR_ERR(ctx->bias);
}
devm_gpiod_put(dev, ctx->bias);
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
check_is_need_fake_resolution(dev);
pr_info("%s-nt36525b\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 = "boe,nt36525b,vdo", },
{ }
};
MODULE_DEVICE_TABLE(of, lcm_of_match);
static struct mipi_dsi_driver lcm_driver = {
.probe = lcm_probe,
.remove = lcm_remove,
.driver = {
.name = "panel-boe-nt36525b-vdo",
.owner = THIS_MODULE,
.of_match_table = lcm_of_match,
},
};
module_mipi_dsi_driver(lcm_driver);
MODULE_AUTHOR("Leo Yun <leo.yun@mediatek.com>");
MODULE_DESCRIPTION("Novatek nt36525b VDO LCD Panel Driver");
MODULE_LICENSE("GPL v2");
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