include/linux/mfd/lm3533.h

   1 /*
   2  * lm3533.h -- LM3533 interface
   3  *
   4  * Copyright (C) 2011-2012 Texas Instruments
   5  *
   6  * Author: Johan Hovold <jhovold@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under  the terms of the GNU General  Public License as published by the
  10  * Free Software Foundation;  either version 2 of the License, or (at your
  11  * option) any later version.
  12  */
  13
  14 #ifndef __LINUX_MFD_LM3533_H
  15 #define __LINUX_MFD_LM3533_H
  16
  17 #define LM3533_ATTR_RO(_name) \
  18         DEVICE_ATTR(_name, S_IRUGO, show_##_name, NULL)
  19 #define LM3533_ATTR_RW(_name) \
  20         DEVICE_ATTR(_name, S_IRUGO | S_IWUSR , show_##_name, store_##_name)
  21
  22 struct device;
  23 struct regmap;
  24
  25 struct lm3533 {
  26         struct device *dev;
  27
  28         struct regmap *regmap;
  29
  30         int gpio_hwen;
  31         int irq;
  32
  33         unsigned have_als:1;
  34         unsigned have_backlights:1;
  35         unsigned have_leds:1;
  36 };
  37
  38 struct lm3533_ctrlbank {
  39         struct lm3533 *lm3533;
  40         struct device *dev;
  41         int id;
  42 };
  43
  44 struct lm3533_als_platform_data {
  45         unsigned pwm_mode:1;            /* PWM input mode (default analog) */
  46 };
  47
  48 struct lm3533_bl_platform_data {
  49         char *name;
  50         u8 default_brightness;          /* 0 - 255 */
  51         u8 max_current;                 /* 0 - 31 */
  52         u8 pwm;                         /* 0 - 0x3f */
  53 };
  54
  55 struct lm3533_led_platform_data {
  56         char *name;
  57         const char *default_trigger;
  58         u8 max_current;                 /* 0 - 31 */
  59         u8 pwm;                         /* 0 - 0x3f */
  60 };
  61
  62 struct lm3533_platform_data {
  63         int gpio_hwen;
  64
  65         struct lm3533_als_platform_data *als;
  66
  67         struct lm3533_bl_platform_data *backlights;
  68         int num_backlights;
  69
  70         struct lm3533_led_platform_data *leds;
  71         int num_leds;
  72 };
  73
  74 extern int lm3533_ctrlbank_enable(struct lm3533_ctrlbank *cb);
  75 extern int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb);
  76
  77 extern int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val);
  78 extern int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val);
  79 extern int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb, u8 val);
  80 extern int lm3533_ctrlbank_get_max_current(struct lm3533_ctrlbank *cb,
  81                                                                 u8 *val);
  82 extern int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val);
  83 extern int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val);
  84
  85 extern int lm3533_read(struct lm3533 *lm3533, u8 reg, u8 *val);
  86 extern int lm3533_write(struct lm3533 *lm3533, u8 reg, u8 val);
  87 extern int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask);
  88
  89 #endif  /* __LINUX_MFD_LM3533_H */