From mboxrd@z Thu Jan 1 00:00:00 1970 From: gyungoh@gmail.com Subject: [PATCH v8 4/8] devicetree: backlight: Add new SKY81452 backlight binding Date: Tue, 25 Nov 2014 16:03:02 +0900 Message-ID: <1416898986-24530-5-git-send-email-jack.yoo@skyworksinc.com> References: <1416898986-24530-1-git-send-email-jack.yoo@skyworksinc.com> Return-path: In-Reply-To: <1416898986-24530-1-git-send-email-jack.yoo@skyworksinc.com> Sender: linux-kernel-owner@vger.kernel.org To: sameo@linux.intel.com, lee.jones@linaro.org, jg1.han@samsung.com, cooloney@gmail.com, broonie@kernel.org, lgirdwood@gmail.com Cc: jack.yoo@skyworksinc.com, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, grant.likely@linaro.org, robh+dt@kernel.org, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, pawel.moll@arm.com, heiko@sntech.de, jason@lakedaemon.net, shawn.guo@freescale.com, treding@nvidia.com, florian.vaussard@epfl.ch, trivial@kernel.org, linux@roeck-us.net, andrew@lunn.ch, jic23@kernel.org List-Id: devicetree@vger.kernel.org From: Gyungoh Yoo Signed-off-by: Gyungoh Yoo --- 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>; + }; -- 1.9.1