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
  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_ */