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31 lines
1.1 KiB
Diff
31 lines
1.1 KiB
Diff
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From d566473897f50c1531111f117d4a84fdf5729729 Mon Sep 17 00:00:00 2001
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From: David Lechner <david@lechnology.com>
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Date: Mon, 24 Apr 2023 10:15:59 -0500
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Subject: [PATCH] arm/boot/dts/overlays/mipi-dbi-spi: fix default
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brightness (#5442)
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There is an off-by-one error in the default brightness for the PWM backlight
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in the MIPI DBI SPI overlay that produces the following message in the
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kernel logs:
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pwm-backlight backlight_pwm: invalid default brightness level: 16, using 15
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The value is 0-based, so the max brightness is 15, not 16.
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Signed-off-by: David Lechner <david@lechnology.com>
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---
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arch/arm/boot/dts/overlays/mipi-dbi-spi-overlay.dts | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/arch/arm/boot/dts/overlays/mipi-dbi-spi-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/mipi-dbi-spi-overlay.dts
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@@ -80,7 +80,7 @@
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backlight_pwm: backlight_pwm {
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compatible = "pwm-backlight";
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brightness-levels = <0 6 8 12 16 24 32 40 48 64 96 128 160 192 224 255>;
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- default-brightness-level = <16>;
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+ default-brightness-level = <15>;
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pwms = <&pwm 0 200000>;
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};
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};
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