LXR linux/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
  22struct device;
  23struct regmap;
  24
  25struct 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
  38struct lm3533_ctrlbank {
  39        struct lm3533 *lm3533;
  40        struct device *dev;
  41        int id;
  42};
  43
  44struct 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
  49struct 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
  56struct 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
  63enum lm3533_boost_freq {
  64        LM3533_BOOST_FREQ_500KHZ,
  65        LM3533_BOOST_FREQ_1000KHZ,
  66};
  67
  68enum 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
  75struct 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
  90extern int lm3533_ctrlbank_enable(struct lm3533_ctrlbank *cb);
  91extern int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb);
  92
  93extern int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val);
  94extern int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val);
  95extern int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb,
  96                                                                u16 imax);
  97extern int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val);
  98extern int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val);
  99
 100extern int lm3533_read(struct lm3533 *lm3533, u8 reg, u8 *val);
 101extern int lm3533_write(struct lm3533 *lm3533, u8 reg, u8 val);
 102extern int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask);
 103
 104#endif  /* __LINUX_MFD_LM3533_H */
 105