From: Enric Balletbo i Serra enric.balletbo@collabora.com
[ Upstream commit 2f99fb6e46b0e982bb6ab18b24a08fa318f740ea ]
The MT8183 display PWM device will not work until the associated power-domain is enabled. Add the power-domain reference to the node allows the display PWM driver to operate and the backlight turn on.
Fixes: f15722c0fef0 ("arm64: dts: mt8183: Add pwm and backlight node") Signed-off-by: Enric Balletbo i Serra enric.balletbo@collabora.com Reviewed-by: Hsin-Yi Wang hsinyi@chromium.org Link: https://lore.kernel.org/r/20210113215723.71966-1-enric.balletbo@collabora.co... Signed-off-by: Matthias Brugger matthias.bgg@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi index 9c0073cfad452..64fbba76597c8 100644 --- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi @@ -661,6 +661,7 @@ compatible = "mediatek,mt8183-disp-pwm"; reg = <0 0x1100e000 0 0x1000>; interrupts = <GIC_SPI 128 IRQ_TYPE_LEVEL_LOW>; + power-domains = <&spm MT8183_POWER_DOMAIN_DISP>; #pwm-cells = <2>; clocks = <&topckgen CLK_TOP_MUX_DISP_PWM>, <&infracfg CLK_INFRA_DISP_PWM>;