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

Olimpiu Dejeu
2016-08-22T19:11:35Z

This is the device tree bindings documentation file

Signed-off-by: Olimpiu Dejeu <olimpiu@arcticsand.com>

---
.../bindings/video/backlight/arcxcnn.txt | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/video/backlight/arcxcnn.txt

diff --git a/Documentation/devicetree/bindings/video/backlight/arcxcnn.txt b/Documentation/devicetree/bindings/video/backlight/arcxcnn.txt
new file mode 100644
index 0000000..9cd7315
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/backlight/arcxcnn.txt
@@ -0,0 +1,29 @@
+arcxcnn bindings
+
+Required properties:
+ - compatible: "arc,arcxcnn", "arc,arc2c0608"
+ - reg: I2C slave address (u8)
+
+Optional properties:
+ - bl-name: Backlight device name (string)
+ - init-brt: Initial value of backlight brightness (u32) low 16 bits used
+ - pwm-period: PWM period value. Set only PWM input mode used (u32)
+ - prg-addr: Register address of ROM area to be updated (u32) low 8 bits used
+ - prg-val: Register value to be updated (u32) low 8 bits used
+
+Example:
+
+ /* ARC2C0608 */
+ backlight@30 {
+ compatible = "arc,arc2c0608";
+ reg = <0x30>;
+
+ init-brt = <123>;
+
+ /* LED0+1 string enabled */
+ prg_06h {
+ prg-addr = <0x06>;
+ prg-val = <0x83>;
+ };
+
+ };
--
1.9.1