kernel/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         u8 r_select;                    /* 1 - 127 (ignored in PWM-mode) */
  47 };
  48
  49 struct lm3533_bl_platform_data {
  50         char *name;
  51         u16 max_current;                /* 5000 - 29800 uA (800 uA step) */
  52         u8 default_brightness;          /* 0 - 255 */
  53         u8 pwm;                         /* 0 - 0x3f */
  54 };
  55
  56 struct lm3533_led_platform_data {
  57         char *name;
  58         const char *default_trigger;
  59         u16 max_current;                /* 5000 - 29800 uA (800 uA step) */
  60         u8 pwm;                         /* 0 - 0x3f */
  61 };
  62
  63 enum lm3533_boost_freq {
  64         LM3533_BOOST_FREQ_500KHZ,
  65         LM3533_BOOST_FREQ_1000KHZ,
  66 };
  67
  68 enum lm3533_boost_ovp {
  69         LM3533_BOOST_OVP_16V,
  70         LM3533_BOOST_OVP_24V,
  71         LM3533_BOOST_OVP_32V,
  72         LM3533_BOOST_OVP_40V,
  73 };
  74
  75 struct lm3533_platform_data {
  76         int gpio_hwen;
  77
  78         enum lm3533_boost_ovp boost_ovp;
  79         enum lm3533_boost_freq boost_freq;
  80
  81         struct lm3533_als_platform_data *als;
  82
  83         struct lm3533_bl_platform_data *backlights;
  84         int num_backlights;
  85
  86         struct lm3533_led_platform_data *leds;
  87         int num_leds;
  88 };
  89
  90 extern int lm3533_ctrlbank_enable(struct lm3533_ctrlbank *cb);
  91 extern int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb);
  92
  93 extern int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val);
  94 extern int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val);
  95 extern int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb,
  96                                                                 u16 imax);
  97 extern int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val);
  98 extern int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val);
  99
 100 extern int lm3533_read(struct lm3533 *lm3533, u8 reg, u8 *val);
 101 extern int lm3533_write(struct lm3533 *lm3533, u8 reg, u8 val);
 102 extern int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask);
 103
 104 #endif  /* __LINUX_MFD_LM3533_H */