From: Mark A. Greer Date: Fri, 8 Aug 2014 00:41:42 +0000 (-0700) Subject: NFC: trf7970a: Document the 'vin-voltage-override' DTS property X-Git-Tag: v3.18-rc1~10^2~75^2~80^2~75 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c2b33de06d23e66f9df34f515704cd3bfa8dd260;p=platform%2Fkernel%2Flinux-exynos.git NFC: trf7970a: Document the 'vin-voltage-override' DTS property The trf7970a driver recently had support for the 'vin-voltage-override' property added to it. This property is used to override the value given by the regulator subsystem for the VIN pin's voltage. Signed-off-by: Mark A. Greer Signed-off-by: Samuel Ortiz --- diff --git a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt index 1e43613..02a381d 100644 --- a/Documentation/devicetree/bindings/net/nfc/trf7970a.txt +++ b/Documentation/devicetree/bindings/net/nfc/trf7970a.txt @@ -13,6 +13,7 @@ Optional SoC Specific Properties: - pinctrl-names: Contains only one value - "default". - pintctrl-0: Specifies the pin control groups used for this controller. - autosuspend-delay: Specify autosuspend delay in milliseconds. +- vin-voltage-override: Specify voltage of VIN pin in microvolts. Example (for ARM-based BeagleBone with TRF7970A on SPI1): @@ -30,6 +31,7 @@ Example (for ARM-based BeagleBone with TRF7970A on SPI1): ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_LOW>, <&gpio2 5 GPIO_ACTIVE_LOW>; vin-supply = <&ldo3_reg>; + vin-voltage-override = <5000000>; autosuspend-delay = <30000>; status = "okay"; };