102 lines
3.2 KiB
C
102 lines
3.2 KiB
C
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/*
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* Copyright (C) 2011 ST-Ericsson SA
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* Written on behalf of Linaro for ST-Ericsson
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*
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* Author: Linus Walleij <linus.walleij@linaro.org>
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*
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* License terms: GNU General Public License (GPL) version 2
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*/
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#ifndef MFD_TPS6105X_H
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#define MFD_TPS6105X_H
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#include <linux/i2c.h>
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#include <linux/regulator/machine.h>
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/*
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* Register definitions to all subdrivers
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*/
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#define TPS6105X_REG_0 0x00
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#define TPS6105X_REG0_MODE_SHIFT 6
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#define TPS6105X_REG0_MODE_MASK (0x03<<6)
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/* These defines for both reg0 and reg1 */
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#define TPS6105X_REG0_MODE_SHUTDOWN 0x00
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#define TPS6105X_REG0_MODE_TORCH 0x01
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#define TPS6105X_REG0_MODE_TORCH_FLASH 0x02
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#define TPS6105X_REG0_MODE_VOLTAGE 0x03
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#define TPS6105X_REG0_VOLTAGE_SHIFT 4
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#define TPS6105X_REG0_VOLTAGE_MASK (3<<4)
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#define TPS6105X_REG0_VOLTAGE_450 0
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#define TPS6105X_REG0_VOLTAGE_500 1
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#define TPS6105X_REG0_VOLTAGE_525 2
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#define TPS6105X_REG0_VOLTAGE_500_2 3
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#define TPS6105X_REG0_DIMMING_SHIFT 3
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#define TPS6105X_REG0_TORCHC_SHIFT 0
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#define TPS6105X_REG0_TORCHC_MASK (7<<0)
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#define TPS6105X_REG0_TORCHC_0 0x00
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#define TPS6105X_REG0_TORCHC_50 0x01
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#define TPS6105X_REG0_TORCHC_75 0x02
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#define TPS6105X_REG0_TORCHC_100 0x03
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#define TPS6105X_REG0_TORCHC_150 0x04
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#define TPS6105X_REG0_TORCHC_200 0x05
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#define TPS6105X_REG0_TORCHC_250_400 0x06
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#define TPS6105X_REG0_TORCHC_250_500 0x07
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#define TPS6105X_REG_1 0x01
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#define TPS6105X_REG1_MODE_SHIFT 6
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#define TPS6105X_REG1_MODE_MASK (0x03<<6)
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#define TPS6105X_REG1_MODE_SHUTDOWN 0x00
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#define TPS6105X_REG1_MODE_TORCH 0x01
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#define TPS6105X_REG1_MODE_TORCH_FLASH 0x02
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#define TPS6105X_REG1_MODE_VOLTAGE 0x03
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#define TPS6105X_REG_2 0x02
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#define TPS6105X_REG_3 0x03
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/**
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* enum tps6105x_mode - desired mode for the TPS6105x
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* @TPS6105X_MODE_SHUTDOWN: this instance is inactive, not used for anything
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* @TPS61905X_MODE_TORCH: this instance is used as a LED, usually a while
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* LED, for example as backlight or flashlight. If this is set, the
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* TPS6105X will register to the LED framework
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* @TPS6105X_MODE_TORCH_FLASH: this instance is used as a flashgun, usually
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* in a camera
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* @TPS6105X_MODE_VOLTAGE: this instance is used as a voltage regulator and
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* will register to the regulator framework
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*/
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enum tps6105x_mode {
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TPS6105X_MODE_SHUTDOWN,
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TPS6105X_MODE_TORCH,
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TPS6105X_MODE_TORCH_FLASH,
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TPS6105X_MODE_VOLTAGE,
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};
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/**
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* struct tps6105x_platform_data - TPS61905x platform data
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* @mode: what mode this instance shall be operated in,
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* this is not selectable at runtime
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* @regulator_data: initialization data for the voltage
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* regulator if used as a voltage source
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*/
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struct tps6105x_platform_data {
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enum tps6105x_mode mode;
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struct regulator_init_data *regulator_data;
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};
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/**
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* struct tps6105x - state holder for the TPS6105x drivers
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* @mutex: mutex to serialize I2C accesses
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* @i2c_client: corresponding I2C client
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* @regulator: regulator device if used in voltage mode
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*/
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struct tps6105x {
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struct tps6105x_platform_data *pdata;
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struct mutex lock;
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struct i2c_client *client;
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struct regulator_dev *regulator;
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};
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extern int tps6105x_set(struct tps6105x *tps6105x, u8 reg, u8 value);
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extern int tps6105x_get(struct tps6105x *tps6105x, u8 reg, u8 *buf);
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extern int tps6105x_mask_and_set(struct tps6105x *tps6105x, u8 reg,
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u8 bitmask, u8 bitvalues);
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#endif
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