48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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// TI LMU Common Core
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// Copyright (C) 2018 Texas Instruments Incorporated - https://www.ti.com/
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#ifndef _TI_LMU_COMMON_H_
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#define _TI_LMU_COMMON_H_
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/init.h>
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#include <linux/leds.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/slab.h>
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#include <uapi/linux/uleds.h>
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#define LMU_11BIT_LSB_MASK (BIT(0) | BIT(1) | BIT(2))
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#define LMU_11BIT_MSB_SHIFT 3
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#define MAX_BRIGHTNESS_8BIT 255
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#define MAX_BRIGHTNESS_11BIT 2047
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struct ti_lmu_bank {
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struct regmap *regmap;
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int max_brightness;
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u8 lsb_brightness_reg;
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u8 msb_brightness_reg;
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u8 runtime_ramp_reg;
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u32 ramp_up_usec;
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u32 ramp_down_usec;
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};
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int ti_lmu_common_set_brightness(struct ti_lmu_bank *lmu_bank, int brightness);
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int ti_lmu_common_set_ramp(struct ti_lmu_bank *lmu_bank);
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int ti_lmu_common_get_ramp_params(struct device *dev,
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struct fwnode_handle *child,
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struct ti_lmu_bank *lmu_data);
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int ti_lmu_common_get_brt_res(struct device *dev, struct fwnode_handle *child,
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struct ti_lmu_bank *lmu_data);
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#endif /* _TI_LMU_COMMON_H_ */
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