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 */ 64 enum 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 */ 78 struct 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 */ 89 struct tps6105x { 90 struct tps6105x_platform_data *pdata; 91 struct mutex lock; 92 struct i2c_client *client; 93 struct regulator_dev *regulator; 94 }; 95 96 extern int tps6105x_set(struct tps6105x *tps6105x, u8 reg, u8 value); 97 extern int tps6105x_get(struct tps6105x *tps6105x, u8 reg, u8 *buf); 98 extern int tps6105x_mask_and_set(struct tps6105x *tps6105x, u8 reg, 99 u8 bitmask, u8 bitvalues); 100 101 #endif 102