From 361e1d7f215a8a9d55339202a9566207ae0b94e5 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= Date: Mon, 7 Jun 2021 20:23:52 +0200 Subject: [PATCH 103/389] arm64: dts: sun50i-a64-pinephone: Set minimum backlight duty cycle to 10% Instead of creating our own table, use existing lth_brightness functionality in the pwm_bl driver. Signed-off-by: Ondrej Jirman --- .../dts/allwinner/sun50i-a64-pinephone-1.1.dts | 16 +--------------- .../dts/allwinner/sun50i-a64-pinephone-1.2.dts | 17 +---------------- 2 files changed, 2 insertions(+), 31 deletions(-) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts index d67f31ef529e..63ceae07a0e0 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts @@ -26,21 +26,7 @@ &axp803 { &backlight { power-supply = <®_ldo_io0>; - /* - * PWM backlight circuit on this PinePhone revision was changed since - * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight - * being off is around 20%. Duty cycle for the lowest brightness level - * also varries quite a bit between individual boards, so the lowest - * value here was chosen as a safe default. - */ - brightness-levels = < - 774 793 814 842 - 882 935 1003 1088 - 1192 1316 1462 1633 - 1830 2054 2309 2596 - 2916 3271 3664 4096>; - num-interpolated-steps = <50>; - default-brightness-level = <400>; + lth-brightness = <10>; }; &codec_analog { diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts index 5e988230e6e4..d28a23e98232 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts @@ -17,22 +17,7 @@ wifi_pwrseq: wifi-pwrseq { &backlight { power-supply = <®_ldo_io0>; - /* - * PWM backlight circuit on this PinePhone revision was changed since 1.0, - * and the lowest PWM duty cycle that doesn't lead to backlight being off - * is around 10%. Duty cycle for the lowest brightness level also varries - * quite a bit between individual boards, so the lowest value here was - * chosen as a safe default. - */ - brightness-levels = < - 5000 5248 5506 5858 6345 - 6987 7805 8823 10062 11543 - 13287 15317 17654 20319 23336 - 26724 30505 34702 39335 44427 - 50000 - >; - num-interpolated-steps = <50>; - default-brightness-level = <500>; + lth-brightness = <10>; }; &lis3mdl { -- 2.35.3