/*
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* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
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* Author:Mark Yao <mark.yao@rock-chips.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _ROCKCHIP_DRM_BACKLIGHT_H
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#define _ROCKCHIP_DRM_BACKLIGHT_H
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#include <linux/pwm_backlight.h>
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struct rockchip_drm_backlight {
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struct device *dev;
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struct backlight_device *bd;
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struct pinctrl *pinctrl;
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struct pinctrl_state *dummy_state;
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struct pwm_device *pwm;
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struct drm_connector *connector;
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struct sub_backlight *current_sub, *sub;
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struct regulator *power_supply;
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struct gpio_desc *enable_gpio;
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bool enabled;
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unsigned int max_brightness;
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unsigned int dft_brightness;
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unsigned int lth_brightness;
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unsigned int scale;
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unsigned int *levels;
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};
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struct rockchip_sub_backlight_ops {
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void (*config_done)(struct device *dev, bool async);
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};
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#if IS_ENABLED(CONFIG_ROCKCHIP_DRM_BACKLIGHT)
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int of_rockchip_drm_sub_backlight_register(struct device *dev,
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struct drm_crtc *crtc,
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const struct rockchip_sub_backlight_ops *ops);
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void rockchip_drm_backlight_update(struct drm_device *drm);
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#else
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static inline int
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of_rockchip_drm_sub_backlight_register(struct device *dev,
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struct drm_crtc *crtc,
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const struct rockchip_sub_backlight_ops *ops)
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{
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return 0;
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}
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static inline void rockchip_drm_backlight_update(struct drm_device *drm)
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{
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}
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#endif
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#endif
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