[PATCH v2 3/5] ARM: dts: keystone: Add usb phy devicetree bindings

[Felipe Balbi]

On Wed, Dec 04, 2013 at 03:10:09PM -0500, WingMan Kwok wrote:
> Added device tree support for TI's Keystone USB PHY driver and updated the
> Documentation with device tree binding information.
> 
> Cc: Santosh Shilimkar <santosh.shilimkar at ti.com>
> Signed-off-by: WingMan Kwok <w-kwok2 at ti.com>
> ---
>  .../devicetree/bindings/usb/keystone-phy.txt       |   19 +++++++++++++++++++
>  arch/arm/boot/dts/keystone.dtsi                    |    7 +++++++
>  2 files changed, 26 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/keystone-phy.txt
> 
> diff --git a/Documentation/devicetree/bindings/usb/keystone-phy.txt b/Documentation/devicetree/bindings/usb/keystone-phy.txt
> new file mode 100644
> index 0000000..300830d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/keystone-phy.txt
> @@ -0,0 +1,19 @@
> +TI Keystone USB PHY
> +
> +Required properties:
> + - compatible: should be "ti,keystone-usbphy".
> + - #address-cells, #size-cells : should be '1' if the device has sub-nodes
> +   with 'reg' property.
> + - reg : Address and length of the usb phy control register set.
> +
> +The main purpose of this PHY driver is to enable the USB PHY reference clock
> +gate on the Keystone SOC for both the USB2 and USB3 PHY. Otherwise it is just
> +an NOP PHY driver.  Hence this node is referenced as both the usb2 and usb3
> +phy node in the USB Glue layer driver node.
> +
> +usb_phy: usb_phy at 2620738 {
> +	compatible = "ti,keystone-usbphy";
> +	#address-cells = <1>;
> +	#size-cells = <1>;
> +	reg = <0x2620738 32>;
> +};
> diff --git a/arch/arm/boot/dts/keystone.dtsi b/arch/arm/boot/dts/keystone.dtsi
> index f6d6d9e..d497d9e 100644
> --- a/arch/arm/boot/dts/keystone.dtsi
> +++ b/arch/arm/boot/dts/keystone.dtsi
> @@ -181,5 +181,12 @@
>  			interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>;
>  			clocks = <&clkspi>;
>  		};
> +
> +		usb_phy: usb_phy at 2620738 {
> +			compatible = "ti,keystone-usbphy";
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			reg = <0x2620738 32>;

should this one have status = "disabled"; and let board dts enable the
PHY ?

-- 
balbi
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