[PATCH v10 4/6] devicetree: backlight: Add new SKY81452 backlight binding
From: <hidden>
Date: 2015-01-07 02:20:25
Also in:
linux-devicetree, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
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 .../video/backlight/sky81452-backlight.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
diff --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. +- 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. +- skyworks,short-detection-threshold : It should be one of 4, 5, 6 and 7V. +- skyworks,current-limit : It should be 2300mA or 2750mA. + +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>; + };
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1.9.1