74 lines
2.6 KiB
Diff
74 lines
2.6 KiB
Diff
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From a2c939def0cb3597794b894d434879ae0e84c459 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
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Date: Mon, 7 Jun 2021 20:23:52 +0200
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Subject: [PATCH 103/469] arm64: dts: sun50i-a64-pinephone: Set minimum
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backlight duty cycle to 10%
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Instead of creating our own table, use existing lth_brightness
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functionality in the pwm_bl driver.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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---
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.../dts/allwinner/sun50i-a64-pinephone-1.1.dts | 16 +---------------
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.../dts/allwinner/sun50i-a64-pinephone-1.2.dts | 17 +----------------
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2 files changed, 2 insertions(+), 31 deletions(-)
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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
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index d67f31ef529e..63ceae07a0e0 100644
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--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
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+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.1.dts
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@@ -26,21 +26,7 @@ &axp803 {
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&backlight {
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power-supply = <®_ldo_io0>;
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- /*
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- * PWM backlight circuit on this PinePhone revision was changed since
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- * 1.0, and the lowest PWM duty cycle that doesn't lead to backlight
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- * being off is around 20%. Duty cycle for the lowest brightness level
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- * also varries quite a bit between individual boards, so the lowest
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- * value here was chosen as a safe default.
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- */
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- brightness-levels = <
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- 774 793 814 842
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- 882 935 1003 1088
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- 1192 1316 1462 1633
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- 1830 2054 2309 2596
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- 2916 3271 3664 4096>;
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- num-interpolated-steps = <50>;
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- default-brightness-level = <400>;
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+ lth-brightness = <10>;
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};
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&codec_analog {
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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
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index 5e988230e6e4..d28a23e98232 100644
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--- a/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
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+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-pinephone-1.2.dts
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@@ -17,22 +17,7 @@ wifi_pwrseq: wifi-pwrseq {
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&backlight {
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power-supply = <®_ldo_io0>;
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- /*
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- * PWM backlight circuit on this PinePhone revision was changed since 1.0,
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- * and the lowest PWM duty cycle that doesn't lead to backlight being off
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- * is around 10%. Duty cycle for the lowest brightness level also varries
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- * quite a bit between individual boards, so the lowest value here was
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- * chosen as a safe default.
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- */
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- brightness-levels = <
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- 5000 5248 5506 5858 6345
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- 6987 7805 8823 10062 11543
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- 13287 15317 17654 20319 23336
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- 26724 30505 34702 39335 44427
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- 50000
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- >;
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- num-interpolated-steps = <50>;
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- default-brightness-level = <500>;
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+ lth-brightness = <10>;
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};
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&lis3mdl {
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--
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2.34.1
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