On Mon, Aug 22, 2016 at 03:11:24PM -0400, Olimpiu Dejeu wrote:
This is the device tree bindings documentation file
Signed-off-by: Olimpiu Dejeu <redacted>
---
.../bindings/video/backlight/arcxcnn.txt | 29 ++++++++++++++++++++++
Check your directory location. Things have moved.
quoted hunk
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"
One per line please.
Is arcxcnn a specific chip? If not drop it. No wildcards in compatible
strings.
quoted hunk
+ - reg: I2C slave address (u8)
+
+Optional properties:
+ - bl-name: Backlight device name (string)
Use the common bindings. label?
+ - init-brt: Initial value of backlight brightness (u32) low 16 bits used
Use common bindings.
quoted hunk
+ - 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
What is this for? This should be a specific property or properties to do
explicit things, not a generic fill registers/rom with magic values.
+
+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
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html