leds-ti-lmu-common.h

 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
23struct 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
36int ti_lmu_common_set_brightness(struct ti_lmu_bank *lmu_bank, int brightness);
37
38int ti_lmu_common_set_ramp(struct ti_lmu_bank *lmu_bank);
39
40int ti_lmu_common_get_ramp_params(struct device *dev,
41				  struct fwnode_handle *child,
42				  struct ti_lmu_bank *lmu_data);
43
44int 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_ */