1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
3*4882a593Smuzhiyun * Author:Mark Yao <mark.yao@rock-chips.com>
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * This software is licensed under the terms of the GNU General Public
6*4882a593Smuzhiyun * License version 2, as published by the Free Software Foundation, and
7*4882a593Smuzhiyun * may be copied, distributed, and modified under those terms.
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * This program is distributed in the hope that it will be useful,
10*4882a593Smuzhiyun * but WITHOUT ANY WARRANTY; without even the implied warranty of
11*4882a593Smuzhiyun * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12*4882a593Smuzhiyun * GNU General Public License for more details.
13*4882a593Smuzhiyun */
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #ifndef _ROCKCHIP_DRM_BACKLIGHT_H
16*4882a593Smuzhiyun #define _ROCKCHIP_DRM_BACKLIGHT_H
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun #include <linux/pwm_backlight.h>
19*4882a593Smuzhiyun
20*4882a593Smuzhiyun struct rockchip_drm_backlight {
21*4882a593Smuzhiyun struct device *dev;
22*4882a593Smuzhiyun struct backlight_device *bd;
23*4882a593Smuzhiyun struct pinctrl *pinctrl;
24*4882a593Smuzhiyun struct pinctrl_state *dummy_state;
25*4882a593Smuzhiyun struct pwm_device *pwm;
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun struct drm_connector *connector;
28*4882a593Smuzhiyun struct sub_backlight *current_sub, *sub;
29*4882a593Smuzhiyun
30*4882a593Smuzhiyun struct regulator *power_supply;
31*4882a593Smuzhiyun struct gpio_desc *enable_gpio;
32*4882a593Smuzhiyun bool enabled;
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun unsigned int max_brightness;
35*4882a593Smuzhiyun unsigned int dft_brightness;
36*4882a593Smuzhiyun unsigned int lth_brightness;
37*4882a593Smuzhiyun unsigned int scale;
38*4882a593Smuzhiyun unsigned int *levels;
39*4882a593Smuzhiyun };
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun struct rockchip_sub_backlight_ops {
42*4882a593Smuzhiyun void (*config_done)(struct device *dev, bool async);
43*4882a593Smuzhiyun };
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun #if IS_ENABLED(CONFIG_ROCKCHIP_DRM_BACKLIGHT)
46*4882a593Smuzhiyun int of_rockchip_drm_sub_backlight_register(struct device *dev,
47*4882a593Smuzhiyun struct drm_crtc *crtc,
48*4882a593Smuzhiyun const struct rockchip_sub_backlight_ops *ops);
49*4882a593Smuzhiyun void rockchip_drm_backlight_update(struct drm_device *drm);
50*4882a593Smuzhiyun #else
51*4882a593Smuzhiyun static inline int
of_rockchip_drm_sub_backlight_register(struct device * dev,struct drm_crtc * crtc,const struct rockchip_sub_backlight_ops * ops)52*4882a593Smuzhiyun of_rockchip_drm_sub_backlight_register(struct device *dev,
53*4882a593Smuzhiyun struct drm_crtc *crtc,
54*4882a593Smuzhiyun const struct rockchip_sub_backlight_ops *ops)
55*4882a593Smuzhiyun {
56*4882a593Smuzhiyun return 0;
57*4882a593Smuzhiyun }
58*4882a593Smuzhiyun
rockchip_drm_backlight_update(struct drm_device * drm)59*4882a593Smuzhiyun static inline void rockchip_drm_backlight_update(struct drm_device *drm)
60*4882a593Smuzhiyun {
61*4882a593Smuzhiyun }
62*4882a593Smuzhiyun
63*4882a593Smuzhiyun #endif
64*4882a593Smuzhiyun #endif
65