[PATCH 2/2] backlight: arcxcnn: devicetree bindings for ArticSand devices

[Olimpiu Dejeu]

Resubmition of arcxcnn backliught driver bindings with added register
 documentation

Signed-off-by: Olimpiu Dejeu <olimpiu@xxxxxxxxxxxxxx>

---
 .../bindings/leds/backlight/arcxcnn_bl.txt         | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt

diff --git a/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt b/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
new file mode 100644
index 0000000..a7b6ff2
--- /dev/null
+++ b/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
@@ -0,0 +1,31 @@
+Binding for ArcticSand arc2c0608 LED driver
+
+Required properties:
+- compatible: should be "arc,arc2c0608"
+- reg: slave address
+
+Optional properties:
+- default-brightness: brightness value on boot, value from: 0-4095
+- label: The name of the backlight device
+			See Documentation/devicetree/bindings/leds/common.txt
+- led-sources: List of enabled channels from 0 to 5.
+			See Documentation/devicetree/bindings/leds/common.txt
+
+- arcticsand,led-config-0: setting for register ILED_CONFIG_0
+- arcticsand,led-config-1: setting for register ILED_CONFIG_1
+- arcticsand,dim-freq: PWM mode frequence setting (bits [3:0] used)
+- arcticsand,comp-config: setting for register CONFIG_COMP
+- arcticsand,filter-config: setting for register FILTER_CONFIG
+- arcticsand,trim-config: setting for register IMAXTUNE
+
+Example:
+
+arc2c0608@30 {
+	compatible = "arc,arc2c0608";
+	reg = <0x30>;
+	default-brightness = <500>;
+	label = "lcd-backlight";
+	linux,default-trigger = "backlight";
+	led-sources = <0 1 2 5>;
+};
+
-- 
2.7.4