| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | // TI LMU Common Core |
| 3 | // Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/ |
| 4 | |
| 5 | #ifndef _TI_LMU_COMMON_H_ |
| 6 | #define _TI_LMU_COMMON_H_ |
| 7 | |
| 8 | #include <linux/delay.h> |
| 9 | #include <linux/device.h> |
| 10 | #include <linux/init.h> |
| 11 | #include <linux/leds.h> |
| 12 | #include <linux/module.h> |
| 13 | #include <linux/regmap.h> |
| 14 | #include <linux/slab.h> |
| 15 | #include <uapi/linux/uleds.h> |
| 16 | |
| 17 | #define LMU_11BIT_LSB_MASK (BIT(0) | BIT(1) | BIT(2)) |
| 18 | #define LMU_11BIT_MSB_SHIFT 3 |
| 19 | |
| 20 | #define MAX_BRIGHTNESS_8BIT 255 |
| 21 | #define MAX_BRIGHTNESS_11BIT 2047 |
| 22 | |
| 23 | struct ti_lmu_bank { |
| 24 | struct regmap *regmap; |
| 25 | |
| 26 | int max_brightness; |
| 27 | |
| 28 | u8 lsb_brightness_reg; |
| 29 | u8 msb_brightness_reg; |
| 30 | |
| 31 | u8 runtime_ramp_reg; |
| 32 | u32 ramp_up_usec; |
| 33 | u32 ramp_down_usec; |
| 34 | }; |
| 35 | |
| 36 | int ti_lmu_common_set_brightness(struct ti_lmu_bank *lmu_bank, int brightness); |
| 37 | |
| 38 | int ti_lmu_common_set_ramp(struct ti_lmu_bank *lmu_bank); |
| 39 | |
| 40 | int ti_lmu_common_get_ramp_params(struct device *dev, |
| 41 | struct fwnode_handle *child, |
| 42 | struct ti_lmu_bank *lmu_data); |
| 43 | |
| 44 | int ti_lmu_common_get_brt_res(struct device *dev, struct fwnode_handle *child, |
| 45 | struct ti_lmu_bank *lmu_data); |
| 46 | |
| 47 | #endif /* _TI_LMU_COMMON_H_ */ |
| 48 |