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Date: Mon, 22 Aug 2016 15:11:24 -0400
From: Olimpiu Dejeu <olimpiu@...ticsand.com>
To: lee.jones@...aro.org, linux-kernel@...r.kernel.org,
linux-fbdev@...r.kernel.org, devicetree@...r.kernel.org,
jg1.han@...sung.com
Cc: Olimpiu Dejeu <olimpiu@...ticsand.com>
Subject: [PATCH] backlight: arcxcnn: devicetree bindings for ArticSand devices
This is the device tree bindings documentation file
Signed-off-by: Olimpiu Dejeu <olimpiu@...ticsand.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
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