diff options
| author |   Johan Hovold <jhovold@gmail.com> | 2012-05-03 12:26:36 +0200 |
|---|---|---|
| committer |   Samuel Ortiz <sameo@linux.intel.com> | 2012-05-09 17:20:01 +0200 |
| commit | 16c5c023aac86228e3e94c4bf6d19708ea861a05 (patch) | |
| tree | 2fb7e87ef18d2520e4e0e957e4512c9f92a3886d /include/linux/mfd/lm3533.h | |
| parent | mfd: Add support for db8500-prcmu regulator supply for nmk-i2c.4 (diff) | |
| download | wireguard-linux-16c5c023aac86228e3e94c4bf6d19708ea861a05.tar.xz wireguard-linux-16c5c023aac86228e3e94c4bf6d19708ea861a05.zip | |
mfd: Add LM3533 lighting-power core driver
Add support for National Semiconductor / TI LM3533 lighting power chips.
This is the core driver which provides register access over I2C and
registers the ambient-light-sensor, LED and backlight sub-drivers.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Reviewed-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'include/linux/mfd/lm3533.h')
| -rw-r--r-- | include/linux/mfd/lm3533.h | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/include/linux/mfd/lm3533.h b/include/linux/mfd/lm3533.h new file mode 100644 index 000000000000..75f85f3fbd90 --- /dev/null +++ b/include/linux/mfd/lm3533.h @@ -0,0 +1,89 @@ +/* + * lm3533.h -- LM3533 interface + * + * Copyright (C) 2011-2012 Texas Instruments + * + * Author: Johan Hovold <jhovold@gmail.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __LINUX_MFD_LM3533_H +#define __LINUX_MFD_LM3533_H + +#define LM3533_ATTR_RO(_name) \ + DEVICE_ATTR(_name, S_IRUGO, show_##_name, NULL) +#define LM3533_ATTR_RW(_name) \ + DEVICE_ATTR(_name, S_IRUGO | S_IWUSR , show_##_name, store_##_name) + +struct device; +struct regmap; + +struct lm3533 { + struct device *dev; + + struct regmap *regmap; + + int gpio_hwen; + int irq; + + unsigned have_als:1; + unsigned have_backlights:1; + unsigned have_leds:1; +}; + +struct lm3533_ctrlbank { + struct lm3533 *lm3533; + struct device *dev; + int id; +}; + +struct lm3533_als_platform_data { + unsigned pwm_mode:1; /* PWM input mode (default analog) */ +}; + +struct lm3533_bl_platform_data { + char *name; + u8 default_brightness; /* 0 - 255 */ + u8 max_current; /* 0 - 31 */ + u8 pwm; /* 0 - 0x3f */ +}; + +struct lm3533_led_platform_data { + char *name; + const char *default_trigger; + u8 max_current; /* 0 - 31 */ + u8 pwm; /* 0 - 0x3f */ +}; + +struct lm3533_platform_data { + int gpio_hwen; + + struct lm3533_als_platform_data *als; + + struct lm3533_bl_platform_data *backlights; + int num_backlights; + + struct lm3533_led_platform_data *leds; + int num_leds; +}; + +extern int lm3533_ctrlbank_enable(struct lm3533_ctrlbank *cb); +extern int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb); + +extern int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val); +extern int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val); +extern int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb, u8 val); +extern int lm3533_ctrlbank_get_max_current(struct lm3533_ctrlbank *cb, + u8 *val); +extern int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val); +extern int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val); + +extern int lm3533_read(struct lm3533 *lm3533, u8 reg, u8 *val); +extern int lm3533_write(struct lm3533 *lm3533, u8 reg, u8 val); +extern int lm3533_update(struct lm3533 *lm3533, u8 reg, u8 val, u8 mask); + +#endif /* __LINUX_MFD_LM3533_H */ |