RAVE SP found on RDU2 implements backlight control compatible with the
rave-sp-backlight driver. Add a node to make it availible.

Cc: Fabio Estevam <[email protected]>
Cc: Nikita Yushchenko <[email protected]>
Cc: Lucas Stach <[email protected]>
Cc: [email protected]
Cc: Shawn Guo <[email protected]>
Cc: Rob Herring <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Signed-off-by: Andrey Smirnov <[email protected]>
---
 arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi 
b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
index e4630481d951..48da4b15da09 100644
--- a/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-zii-rdu2.dtsi
@@ -327,6 +327,10 @@
                        compatible = "zii,rave-sp-watchdog";
                };
 
+               backlight {
+                       compatible = "zii,rave-sp-backlight";
+               };
+
                eeprom@a3 {
                        compatible = "zii,rave-sp-eeprom";
                        reg = <0xa3 0x4000>;
-- 
2.17.1

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