1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ 2 /* 3 * This header provides constants for rt4831 backlight bindings. 4 * 5 * Copyright (C) 2020, Richtek Technology Corp. 6 * Author: ChiYuan Huang <cy_huang@richtek.com> 7 */ 8 9 #ifndef _DT_BINDINGS_RT4831_BACKLIGHT_H 10 #define _DT_BINDINGS_RT4831_BACKLIGHT_H 11 12 #define RT4831_BLOVPLVL_17V 0 13 #define RT4831_BLOVPLVL_21V 1 14 #define RT4831_BLOVPLVL_25V 2 15 #define RT4831_BLOVPLVL_29V 3 16 17 #define RT4831_BLED_CH1EN (1 << 0) 18 #define RT4831_BLED_CH2EN (1 << 1) 19 #define RT4831_BLED_CH3EN (1 << 2) 20 #define RT4831_BLED_CH4EN (1 << 3) 21 #define RT4831_BLED_ALLCHEN ((1 << 4) - 1) 22 23 #endif /* _DT_BINDINGS_RT4831_BACKLIGHT_H */ 24