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/include/linux/mfd/tps6105x.h

https://github.com/airy09/android_kernel_sony_apq8064
C Header | 101 lines | 58 code | 7 blank | 36 comment | 0 complexity | 0495537e5f964ccf04ba55b057395d37 MD5 | raw file
  1/*
  2 * Copyright (C) 2011 ST-Ericsson SA
  3 * Written on behalf of Linaro for ST-Ericsson
  4 *
  5 * Author: Linus Walleij <linus.walleij@linaro.org>
  6 *
  7 * License terms: GNU General Public License (GPL) version 2
  8 */
  9#ifndef MFD_TPS6105X_H
 10#define MFD_TPS6105X_H
 11
 12#include <linux/i2c.h>
 13#include <linux/regulator/machine.h>
 14
 15/*
 16 * Register definitions to all subdrivers
 17 */
 18#define TPS6105X_REG_0			0x00
 19#define TPS6105X_REG0_MODE_SHIFT	6
 20#define TPS6105X_REG0_MODE_MASK		(0x03<<6)
 21/* These defines for both reg0 and reg1 */
 22#define TPS6105X_REG0_MODE_SHUTDOWN	0x00
 23#define TPS6105X_REG0_MODE_TORCH	0x01
 24#define TPS6105X_REG0_MODE_TORCH_FLASH	0x02
 25#define TPS6105X_REG0_MODE_VOLTAGE	0x03
 26#define TPS6105X_REG0_VOLTAGE_SHIFT	4
 27#define TPS6105X_REG0_VOLTAGE_MASK	(3<<4)
 28#define TPS6105X_REG0_VOLTAGE_450	0
 29#define TPS6105X_REG0_VOLTAGE_500	1
 30#define TPS6105X_REG0_VOLTAGE_525	2
 31#define TPS6105X_REG0_VOLTAGE_500_2	3
 32#define TPS6105X_REG0_DIMMING_SHIFT	3
 33#define TPS6105X_REG0_TORCHC_SHIFT	0
 34#define TPS6105X_REG0_TORCHC_MASK	(7<<0)
 35#define TPS6105X_REG0_TORCHC_0		0x00
 36#define TPS6105X_REG0_TORCHC_50		0x01
 37#define TPS6105X_REG0_TORCHC_75		0x02
 38#define TPS6105X_REG0_TORCHC_100	0x03
 39#define TPS6105X_REG0_TORCHC_150	0x04
 40#define TPS6105X_REG0_TORCHC_200	0x05
 41#define TPS6105X_REG0_TORCHC_250_400	0x06
 42#define TPS6105X_REG0_TORCHC_250_500	0x07
 43#define TPS6105X_REG_1			0x01
 44#define TPS6105X_REG1_MODE_SHIFT	6
 45#define TPS6105X_REG1_MODE_MASK		(0x03<<6)
 46#define TPS6105X_REG1_MODE_SHUTDOWN	0x00
 47#define TPS6105X_REG1_MODE_TORCH	0x01
 48#define TPS6105X_REG1_MODE_TORCH_FLASH	0x02
 49#define TPS6105X_REG1_MODE_VOLTAGE	0x03
 50#define TPS6105X_REG_2			0x02
 51#define TPS6105X_REG_3			0x03
 52
 53/**
 54 * enum tps6105x_mode - desired mode for the TPS6105x
 55 * @TPS6105X_MODE_SHUTDOWN: this instance is inactive, not used for anything
 56 * @TPS61905X_MODE_TORCH: this instance is used as a LED, usually a while
 57 *	LED, for example as backlight or flashlight. If this is set, the
 58 *	TPS6105X will register to the LED framework
 59 * @TPS6105X_MODE_TORCH_FLASH: this instance is used as a flashgun, usually
 60 *	in a camera
 61 * @TPS6105X_MODE_VOLTAGE: this instance is used as a voltage regulator and
 62 *	will register to the regulator framework
 63 */
 64enum tps6105x_mode {
 65	TPS6105X_MODE_SHUTDOWN,
 66	TPS6105X_MODE_TORCH,
 67	TPS6105X_MODE_TORCH_FLASH,
 68	TPS6105X_MODE_VOLTAGE,
 69};
 70
 71/**
 72 * struct tps6105x_platform_data - TPS61905x platform data
 73 * @mode: what mode this instance shall be operated in,
 74 *	this is not selectable at runtime
 75 * @regulator_data: initialization data for the voltage
 76 *	regulator if used as a voltage source
 77 */
 78struct tps6105x_platform_data {
 79	enum tps6105x_mode mode;
 80	struct regulator_init_data *regulator_data;
 81};
 82
 83/**
 84 * struct tps6105x - state holder for the TPS6105x drivers
 85 * @mutex: mutex to serialize I2C accesses
 86 * @i2c_client: corresponding I2C client
 87 * @regulator: regulator device if used in voltage mode
 88 */
 89struct tps6105x {
 90	struct tps6105x_platform_data *pdata;
 91	struct mutex		lock;
 92	struct i2c_client	*client;
 93	struct regulator_dev	*regulator;
 94};
 95
 96extern int tps6105x_set(struct tps6105x *tps6105x, u8 reg, u8 value);
 97extern int tps6105x_get(struct tps6105x *tps6105x, u8 reg, u8 *buf);
 98extern int tps6105x_mask_and_set(struct tps6105x *tps6105x, u8 reg,
 99				 u8 bitmask, u8 bitvalues);
100
101#endif