LXR linux/include/linux/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_ */
  48