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arm64: dts: renesas: r8a77995: draak: Set better backlight levels

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The backlight levels provided in the Draak DT produce a perceived
brightness very biased towards high brightness. Use better brightness
levels based on the CIE 1931 formula.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Ulrich Hecht <uli+renesas@fpond.eu>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
This commit is contained in:
Laurent Pinchart 2018-12-16 13:32:17 +02:00 committed by Simon Horman
parent 9d16c4a10e
commit a06ad4385f
1 changed files with 2 additions and 2 deletions
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4
arch/arm64/boot/dts/renesas/r8a77995-draak.dts
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@ -28,8 +28,8 @@
compatible = "pwm-backlight";
pwms = <&pwm1 0 50000>;
brightness-levels = <256 128 64 16 8 4 0>;
default-brightness-level = <6>;
brightness-levels = <512 511 505 494 473 440 392 327 241 133 0>;
default-brightness-level = <10>;
power-supply = <&reg_12p0v>;
enable-gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>;