1// SPDX-License-Identifier: (GPL-2.0+ OR MIT) 2// Copyright (C) 2020 Ondrej Jirman <megous@megous.com> 3 4/dts-v1/; 5 6#include "sun50i-a64-pinephone.dtsi" 7 8/ { 9 model = "Pine64 PinePhone Braveheart (1.1)"; 10 compatible = "pine64,pinephone-1.1", "pine64,pinephone", "allwinner,sun50i-a64"; 11}; 12 13&backlight { 14 power-supply = <®_ldo_io0>; 15 /* 16 * PWM backlight circuit on this PinePhone revision was changed since 17 * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight 18 * being off is around 20%. Duty cycle for the lowest brightness level 19 * also varries quite a bit between individual boards, so the lowest 20 * value here was chosen as a safe default. 21 */ 22 brightness-levels = < 23 774 793 814 842 24 882 935 1003 1088 25 1192 1316 1462 1633 26 1830 2054 2309 2596 27 2916 3271 3664 4096>; 28 num-interpolated-steps = <50>; 29 default-brightness-level = <400>; 30}; 31 32&sgm3140 { 33 enable-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* PD24 */ 34 flash-gpios = <&pio 2 3 GPIO_ACTIVE_HIGH>; /* PC3 */ 35}; 36