arm64: dts: imx8mq-librem5: add brightness levels to led-backlight

Add brightness-levels and default-brightness-level properties to
the librem5 board description that have been used for a long time.

Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index 9f374da..f8698b6 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -20,6 +20,8 @@
        backlight_dsi: backlight-dsi {
                compatible = "led-backlight";
                leds = <&led_backlight>;
+               brightness-levels = <255>;
+               default-brightness-level = <190>;
        };
 
        pmic_osc: clock-pmic {