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3fce8e1eb9
Create a TI LMU common framework for TI LMU devices that share common features. Currently the runtime ramp and brightness setting have been identified as common features with common register settings. This work is derived from Milo Kims TI LMU MFD code. Signed-off-by: Dan Murphy <dmurphy@ti.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
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 - http://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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