ARM: dts: omap4-droid4: Add LCD backlight

The TI LMU driver has not yet been merged, but the device
tree binding for TI LMU drivers has been acked already
earlier by Rob Herring <robh+dt@kernel.org>. So it should
be safe to apply to cut down the number of pending patches.

Cc: devicetree@vger.kernel.org
Cc: Marcel Partap <mpartap@gmx.net>
Cc: Michael Scott <michael.scott@linaro.org>
Cc: Rob Herring <robh+dt@kernel.org>
Acked-by: Milo Kim <milo.kim@ti.com>
Tested-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/omap4-droid4-xt894.dts b/arch/arm/boot/dts/omap4-droid4-xt894.dts
index 02fd2d8fa0d16d3a6cf06e798f2885bc6a8f2f68..ed07f39d61a2a1b977ac14848e305fcf0ac81fef 100644 (file)
--- a/arch/arm/boot/dts/omap4-droid4-xt894.dts
+++ b/arch/arm/boot/dts/omap4-droid4-xt894.dts
@@ -180,6 +180,25 @@
        };
 };
 
+&i2c1 {
+       lm3532@38 {
+               compatible = "ti,lm3532";
+               reg = <0x38>;
+
+               enable-gpios = <&gpio6 12 GPIO_ACTIVE_HIGH>;
+
+               backlight {
+                       compatible = "ti,lm3532-backlight";
+
+                       lcd {
+                               led-sources = <0 1 2>;
+                               ramp-up-msec = <1>;
+                               ramp-down-msec = <0>;
+                       };
+               };
+       };
+};
+
 /*
  * REVISIT: Add gpio173 reset pin handling to the driver, see gpio-hog above.
  * If the GPIO reset is used, we probably need to have /lib/firmware/maxtouch.fw