Examples/board-plat-lm3631.c

   1 /*
   2  *      Platform Specific LM3631 Example
   3  *
   4  *                      Copyright (C) 2013 Texas Instruments
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  */
  11
  12 #include <linux/i2c.h>
  13 #include <linux/slab.h>
  14 #include <linux/mfd/lm3631.h>
  15 #include <linux/pwm.h>
  16
  17 #include "mux.h"
  18 #include "board-plat-lm3631.h"
  19
  20 static struct regulator_consumer_supply lcd_vboost[] = {
  21         REGULATOR_SUPPLY("lcd_boost", NULL),
  22 };
  23
  24 static struct regulator_consumer_supply lcd_vio[] = {
  25         REGULATOR_SUPPLY("lcd_io", NULL),
  26 };
  27
  28 static struct regulator_consumer_supply lcd_vpos[] = {
  29         REGULATOR_SUPPLY("lcd_vpos", NULL),
  30 };
  31
  32 static struct regulator_consumer_supply lcd_vneg[] = {
  33         REGULATOR_SUPPLY("lcd_vneg", NULL),
  34 };
  35
  36 static struct regulator_consumer_supply lcd_vgamma[] = {
  37         REGULATOR_SUPPLY("lcd_gamma", NULL),
  38 };
  39
  40 struct regulator_init_data lcd_boost = {
  41         .constraints = {
  42                 .name = "LCD_BOOST",
  43                 .min_uV = 4500000,
  44                 .max_uV = 6350000,
  45                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
  46                 .always_on = 1,
  47         },
  48         .num_consumer_supplies  = ARRAY_SIZE(lcd_vboost),
  49         .consumer_supplies      = lcd_vboost,
  50 };
  51
  52 struct regulator_init_data lcd_cont = {
  53         .constraints = {
  54                 .name = "LCD_CONT",
  55                 .min_uV = 1800000,
  56                 .max_uV = 3300000,
  57                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
  58                                 REGULATOR_CHANGE_STATUS,
  59         },
  60         .num_consumer_supplies  = ARRAY_SIZE(lcd_vio),
  61         .consumer_supplies      = lcd_vio,
  62 };
  63
  64 struct regulator_init_data lcd_oref = {
  65         .constraints = {
  66                 .name = "LCD_OREF",
  67                 .min_uV = 4000000,
  68                 .max_uV = 6000000,
  69                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
  70                                 REGULATOR_CHANGE_STATUS,
  71         },
  72         .num_consumer_supplies  = ARRAY_SIZE(lcd_vgamma),
  73         .consumer_supplies      = lcd_vgamma,
  74 };
  75
  76 struct regulator_init_data lcd_pos = {
  77         .constraints = {
  78                 .name = "LCD_VPOS",
  79                 .min_uV = 4000000,
  80                 .max_uV = 6000000,
  81                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
  82                                 REGULATOR_CHANGE_STATUS,
  83                 .boot_on = 1,
  84         },
  85         .num_consumer_supplies  = ARRAY_SIZE(lcd_vpos),
  86         .consumer_supplies      = lcd_vpos,
  87 };
  88
  89 struct regulator_init_data lcd_neg = {
  90         .constraints = {
  91                 .name = "LCD_VNEG",
  92                 .min_uV = 4000000,
  93                 .max_uV = 6000000,
  94                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
  95                                 REGULATOR_CHANGE_STATUS,
  96                 .boot_on = 1,
  97         },
  98         .num_consumer_supplies  = ARRAY_SIZE(lcd_vneg),
  99         .consumer_supplies      = lcd_vneg,
 100 };
 101
 102 struct lm3631_backlight_platform_data lm3631_bl_pdata = {
 103         .name = "lcd-bl",
 104         .is_full_strings = true,
 105         .mode = LM3631_COMB1,
 106 };
 107
 108 #define LM3631_EN_GPIO          134
 109 static struct lm3631_platform_data lm3631_pdata = {
 110         .en_gpio = LM3631_EN_GPIO,
 111         .regulator_data = {
 112                 &lcd_boost,
 113                 &lcd_cont,
 114                 &lcd_oref,
 115                 &lcd_pos,
 116                 &lcd_neg,
 117         },
 118         .bl_pdata = &lm3631_bl_pdata,
 119 };
 120
 121 static struct i2c_board_info __initdata led_i2c_boardinfo[] = {
 122         {
 123                 I2C_BOARD_INFO("lm3631", 0x29),
 124                 .platform_data = &lm3631_pdata,
 125         },
 126 };
 127
 128 int plat_lm3631_init(void)
 129 {
 130         i2c_register_board_info(4, led_i2c_boardinfo,
 131                                 ARRAY_SIZE(led_i2c_boardinfo));
 132         return 0;
 133 }