1 /* drivers/video/sprdfb/lcd_sd7798d_mipi.c
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3 * Support for sd7798d mipi LCD device
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5 * Copyright (C) 2010 Spreadtrum
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8 #include <asm/arch/sprd_lcd.h>
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9 #include "../sprdfb.h"
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10 #define printk printf
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14 #define LCD_PRINT printk
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16 #define LCD_PRINT(...)
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19 #define MAX_DATA 150
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23 typedef struct LCM_Init_Code_tag {
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25 unsigned char data[MAX_DATA];
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28 typedef struct LCM_force_cmd_code_tag{
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29 unsigned int datatype;
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30 LCM_Init_Code real_cmd_code;
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31 }LCM_Force_Cmd_Code;
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33 #define LCM_TAG_SHIFT 24
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34 #define LCM_TAG_MASK ((1 << 24) -1)
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35 #define LCM_SEND(len) ((1 << LCM_TAG_SHIFT)| len)
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36 #define LCM_SLEEP(ms) ((2 << LCM_TAG_SHIFT)| ms)
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37 //#define ARRAY_SIZE(array) ( sizeof(array) / sizeof(array[0]))
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39 #define LCM_TAG_SEND (1<< 0)
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40 #define LCM_TAG_SLEEP (1 << 1)
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43 static LCM_Init_Code init_data[] = {
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44 {LCM_SEND(6), {4, 0, 0xB9, 0xF1, 0x08, 0x00} },
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45 {LCM_SEND(10), {8, 0, 0xB1, 0x31, 0x0C, 0x0C, 0xA7, 0x33, 0x01, 0xB7} },
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46 {LCM_SEND(6), {4, 0, 0xC6, 0x00, 0x00, 0xFD} },
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47 {LCM_SEND(7), {5, 0, 0xE3, 0x03, 0x03, 0x03, 0x03} },
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48 {LCM_SEND(5), {3, 0, 0xB8, 0x06, 0x22} },
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50 {LCM_SEND(21), {19, 0, 0xBA, 0x31, 0x00, 0x44, 0x25, 0x91, 0x0A, 0x00, 0x00, 0xC2, 0x34, 0x00, 0x00, 0x04, 0x02, 0x1D,
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51 0xB9, 0xEE, 0x40} },
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52 {LCM_SEND(11), {9, 0, 0xB3, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x0A, 0x25, 0x20} },
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53 {LCM_SEND(2), {0xB4, 0x00} },
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54 {LCM_SEND(2), {0xCC, 0x0E} },
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55 {LCM_SEND(2), {0xBC, 0x67} },
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56 {LCM_SEND(2), {0xB2, 0x03} },
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57 {LCM_SEND(8), {6, 0, 0xC0, 0x73, 0x50, 0x00, 0x08, 0x70} },
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58 {LCM_SEND(54), {52, 0, 0xE9, 0x00, 0x00, 0x06, 0x00, 0x00, 0x6E, 0x29, 0x12, 0x30, 0x00, 0x48, 0x08, 0x6E, 0x29, 0x47,
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59 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x89, 0x98, 0x33, 0x11, 0x77, 0x55,
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60 0x13, 0x00, 0x00, 0x89, 0x98, 0x22, 0x00, 0x66, 0x44, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
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61 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,} },
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62 {LCM_SEND(39), {37, 0, 0xEA, 0x00, 0x00, 0x98, 0x98, 0x44, 0x66, 0x00, 0x22, 0x20, 0x00, 0x00, 0x98, 0x98, 0x55, 0x77,
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63 0x11, 0x33, 0x31, 0x30, 0x00, 0x00, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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64 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,} },
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65 {LCM_SEND(37), {35, 0, 0xE0, 0x01, 0x09, 0x0D, 0x2E, 0x36, 0x3F, 0x10, 0x31, 0x07, 0x0D, 0x11, 0x15, 0x13, 0x16, 0x15,
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66 0x32, 0x38, 0x01, 0x05, 0x05, 0x30, 0x35, 0x3F, 0x0E, 0x30, 0x04, 0x09, 0x0A, 0x0D, 0x12,
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67 0x0D, 0x0F, 0x2C, 0x35} },
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68 {LCM_SEND(1), {0x11} },
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70 {LCM_SEND(1), {0x29} },
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75 static LCM_Init_Code disp_on = {LCM_SEND(1), {0x29}};
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77 static LCM_Init_Code sleep_in[] = {
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78 {LCM_SEND(1), {0x28}},
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79 {LCM_SLEEP(150)}, //>150ms
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80 {LCM_SEND(1), {0x10}},
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81 {LCM_SLEEP(150)}, //>150ms
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84 static LCM_Init_Code sleep_out[] = {
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85 {LCM_SEND(1), {0x11}},
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86 {LCM_SLEEP(120)},//>120ms
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87 {LCM_SEND(1), {0x29}},
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88 {LCM_SLEEP(20)}, //>20ms
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91 //extern void (*lcd_panel_cabc_pwm_bl)(int brightness);
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92 //extern void backlight_control(int brigtness);
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93 static int32_t sd7798d_mipi_init(struct panel_spec *self)
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96 LCM_Init_Code *init = init_data;
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99 //lcd_panel_cabc_pwm_bl = backlight_control;
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101 mipi_set_cmd_mode_t mipi_set_cmd_mode = self->info.mipi->ops->mipi_set_cmd_mode;
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102 mipi_dcs_write_t mipi_dcs_write = self->info.mipi->ops->mipi_dcs_write;
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103 mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;
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105 LCD_PRINT("lcd_sd7798d_init\n");
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107 mipi_set_cmd_mode();
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108 mipi_eotp_set(0,0);
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110 for(i = 0; i < ARRAY_SIZE(init_data); i++){
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111 tag = (init->tag >>24);
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112 if(tag & LCM_TAG_SEND){
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113 mipi_dcs_write(init->data, (init->tag & LCM_TAG_MASK));
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115 }else if(tag & LCM_TAG_SLEEP){
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116 mdelay(init->tag & LCM_TAG_MASK);//udelay((init->tag & LCM_TAG_MASK) * 1000);
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120 mipi_eotp_set(0,0);
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125 static uint32_t sd7798d_readid(struct panel_spec *self)
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128 uint8_t read_data[3] = {0};
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129 int32_t read_rtn = 0;
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130 uint8_t param[2] = {0};
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131 mipi_set_cmd_mode_t mipi_set_cmd_mode = self->info.mipi->ops->mipi_set_cmd_mode;
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132 mipi_force_write_t mipi_force_write = self->info.mipi->ops->mipi_force_write;
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133 mipi_force_read_t mipi_force_read = self->info.mipi->ops->mipi_force_read;
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134 mipi_eotp_set_t mipi_eotp_set = self->info.mipi->ops->mipi_eotp_set;
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136 LCD_PRINT("lcd_sd7798d_mipi read id!\n");
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138 mipi_set_cmd_mode();
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139 mipi_eotp_set(0,0);
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141 for(j = 0; j < 4; j++){
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144 mipi_force_write(0x37, param, 2);
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145 read_rtn = mipi_force_read(0xda,1,&read_data[0]);
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146 read_rtn = mipi_force_read(0xdb,1,&read_data[1]);
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147 read_rtn = mipi_force_read(0xdc,1,&read_data[2]);
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148 if((0x55 == read_data[0])&&(0xB8 == read_data[1])&&(0xf0 == read_data[2]))
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150 LCD_PRINT("lcd_sd7798d_mipi read id success!\n");
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154 LCD_PRINT("lcd_sd7798d_mipi read id fail! 0xda,0xdb,0xdc is 0x%x,0x%x,0x%x!\n",read_data[0],read_data[1],read_data[2]);
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155 mipi_eotp_set(0,0);
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159 static struct panel_operations lcd_sd7798d_mipi_operations = {
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160 .panel_init = sd7798d_mipi_init,
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161 .panel_readid = sd7798d_readid,
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164 static struct timing_rgb lcd_sd7798d_mipi_timing = {
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165 .hfp = 145, /* unit: pixel */
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168 .vfp = 10, /*unit: line*/
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174 static struct info_mipi lcd_sd7798d_mipi_info = {
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175 .work_mode = SPRDFB_MIPI_MODE_VIDEO,
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176 .video_bus_width = 24, /*18,16*/
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178 .phy_feq =481*1000,
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179 .h_sync_pol = SPRDFB_POLARITY_POS,
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180 .v_sync_pol = SPRDFB_POLARITY_POS,
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181 .de_pol = SPRDFB_POLARITY_POS,
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182 .te_pol = SPRDFB_POLARITY_POS,
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183 .color_mode_pol = SPRDFB_POLARITY_NEG,
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184 .shut_down_pol = SPRDFB_POLARITY_NEG,
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185 .timing = &lcd_sd7798d_mipi_timing,
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189 struct panel_spec lcd_sd7798d_mipi_spec = {
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193 .type = LCD_MODE_DSI,
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194 .direction = LCD_DIRECT_NORMAL,
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196 .mipi = &lcd_sd7798d_mipi_info
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198 .ops = &lcd_sd7798d_mipi_operations,
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