ARM: dts: omap4-sdp: Add support for pwm-backlight

Section to describe the backlight for the LCD panels.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Benoit Cousson <benoit.cousson@linaro.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 8101a945e7c3..c2dee41eb7d7 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -95,6 +95,17 @@
                 };
         };
 
+        backlight {
+                compatible = "pwm-backlight";
+                pwms = <&twl_pwm 1 7812500>;
+                brightness-levels = <
+                                0 10 20 30 40
+                                50 60 70 80 90
+                                100 110 120 127
+                                >;
+                default-brightness-level = <13>;
+        };
+
         sound {
                 compatible = "ti,abe-twl6040";
                 ti,model = "SDP4430";