From: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
This patch add support for lcdif backlight on Is.IoT MX6UL
variant boards.
Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
Cc: Matteo Lisi <matteo.lisi@xxxxxxxxxxx>
Cc: Michael Trimarchi <michael@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx>
---
Changes for v2:
- none
arch/arm/boot/dts/imx6ul-isiot.dtsi | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/arch/arm/boot/dts/imx6ul-isiot.dtsi b/arch/arm/boot/dts/imx6ul-isiot.dtsi
index 0b43699..5ccc3df 100644
--- a/arch/arm/boot/dts/imx6ul-isiot.dtsi
+++ b/arch/arm/boot/dts/imx6ul-isiot.dtsi
@@ -52,6 +52,29 @@
chosen {
stdout-path = &uart1;
};
+
+ backlight {
+ compatible = "pwm-backlight";
+ pwms = <&pwm8 0 100000>;
+ 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 = <100>;
+ };
+};
+
+&pwm8 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_pwm8>;
+ status = "okay";
};
&uart1 {
@@ -72,6 +95,12 @@
};
&iomuxc {
+ pinctrl_pwm8: pwm8grp {
+ fsl,pins = <
+ MX6UL_PAD_ENET1_RX_ER__PWM8_OUT 0x110b0
+ >;
+ };
+
pinctrl_uart1: uart1grp {
fsl,pins = <
MX6UL_PAD_UART1_TX_DATA__UART1_DCE_TX 0x1b0b1
--
1.9.1
--
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