Re: [PATCH v10 4/6] devicetree: Add new SKY81452 backlight binding
From: Rob Herring <hidden>
Date: 2015-02-04 15:11:46
Also in:
linux-devicetree, lkml
On Fri, Jan 23, 2015 at 12:28 AM, [off-list ref] wrote:
From: Gyungoh Yoo <redacted> Signed-off-by: Gyungoh Yoo <redacted> Acked-by: Bryan Wu <redacted> --- Changes v10: Nothing Changes v9: Nothing Changes v8: Renamed property names for backlight with vendor prefix Modified gpio-enable property to generic property for GPIO Made up the example for backlight DT Changes v7: Nothing Changes v6: Nothing Changes v5: Nothing Changes v4: Nothing Changes v3: Nothing Changes v2: Added reg attribute for I2C slave address
You did? Where is it?
quoted hunk ↗ jump to hunk
.../video/backlight/sky81452-backlight.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txtdiff --git a/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt new file mode 100644 index 0000000..8daebf5 --- /dev/null +++ b/Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt@@ -0,0 +1,29 @@ +SKY81452-backlight bindings + +Required properties: +- compatible : Must be "skyworks,sky81452-backlight" + +Optional properties: +- name : Name of backlight device. Default is 'lcd-backlight'. +- gpios : GPIO to use to EN pin. + See Documentation/devicetree/bindings/gpio/gpio.txt +- skyworks,en-channels : Enable mask for current sink channel 1 to 6.
Does led-sources property being added in 3.20 work for this?
+- skyworks,ignore-pwm : Ignore both PWM input +- skyworks,dpwm-mode : Enable DPWM dimming mode, otherwise Analog dimming. +- skyworks,phase-shift : Enable phase shift mode +- skyworks,ovp-level : Over-voltage protection level. + Should be between 14 or 28V.
Please append units (-volt)
+- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V.
Please append units (-volt)
+- skyworks,current-limit : It should be 2300mA or 2750mA.
Please append units (-mA)
+
+Example:
+
+ backlight {
+ compatible = "skyworks,sky81452-backlight";
+ name = "pwm-backlight";
+ skyworks,en-channels = <0x3f>;
+ skyworks,ignore-pwm;
+ skyworks,phase-shift;
+ skyworks,ovp-level = <20>;
+ skyworks,current-limit = <2300>;
+ };
--
1.9.1