MLK-23252-14 arm64: dts: imx8mp-evk: Add PWM backlight support for LVDS panel

This patch adds PWM backlight device tree node support for LVDS panel
on the i.MX8mp EVK platform.

Reviewed-by: Sandor Yu <Sandor.yu@nxp.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>

diff --git a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
index 948e379..9a75a6b 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mp-evk.dts
@@ -92,6 +92,25 @@
                model = "imx-audio-micfil";
                cpu-dai = <&micfil>;
        };
+
+       lvds_backlight: lvds_backlight {
+               compatible = "pwm-backlight";
+               pwms = <&pwm2 0 100000>;
+               status = "okay";
+
+               brightness-levels = < 0  1  2  3  4  5  6  7  8  9
+                                    10 11 12 13 14 15 16 17 18 19
+                                    20 21 22 23 24 25 26 27 28 29
+                                    30 31 32 33 34 35 36 37 38 39
+                                    40 41 42 43 44 45 46 47 48 49
+                                    50 51 52 53 54 55 56 57 58 59
+                                    60 61 62 63 64 65 66 67 68 69
+                                    70 71 72 73 74 75 76 77 78 79
+                                    80 81 82 83 84 85 86 87 88 89
+                                    90 91 92 93 94 95 96 97 98 99
+                                   100>;
+               default-brightness-level = <80>;
+       };
 };
 
 &A53_0 {