From: Adam Ford Date: Sun, 13 Dec 2020 18:37:49 +0000 (-0600) Subject: arm64: dts: renesas: beacon: Fix RGB Display PWM Backlight X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7f1cb1579808f97bd211b4ad16c82f2dc191c709;p=linux.git arm64: dts: renesas: beacon: Fix RGB Display PWM Backlight The backlight didn't really work correctly due to some updates that were made in hardware. It should be safe to apply these, because the older hardware was never shipped to anyone, so it shouldn't break anything. Because the display driver refers to the display as DPI, this also renames the backlight to use DPI for consistency. Signed-off-by: Adam Ford Link: https://lore.kernel.org/r/20201213183759.223246-10-aford173@gmail.com Signed-off-by: Geert Uytterhoeven --- diff --git a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi index 12a9f14349836..1ab96ecc842b4 100644 --- a/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi +++ b/arch/arm64/boot/dts/renesas/beacon-renesom-baseboard.dtsi @@ -16,12 +16,12 @@ default-brightness-level = <6>; }; - backlight_rgb: backlight-rgb { + backlight_dpi: backlight-dpi { compatible = "pwm-backlight"; power-supply = <®_lcd>; enable-gpios = <&gpio_exp1 7 GPIO_ACTIVE_LOW>; - pwms = <&pwm0 0 50000>; - brightness-levels = <0 4 8 16 32 64 128 255>; + pwms = <&pwm0 0 25000>; + brightness-levels = <0 25 33 50 63 75 88 100>; default-brightness-level = <6>; }; @@ -135,7 +135,7 @@ rgb { /* Different LCD with compatible timings */ compatible = "rocktech,rk070er9427"; - backlight = <&backlight_rgb>; + backlight = <&backlight_dpi>; enable-gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>; power-supply = <®_lcd>; port {