[RFC linus/master 2/4] phy: add raspberry pi driver

Stephen Warren swarren at wwwdotorg.org
Sat Oct 24 20:45:49 PDT 2015


On 10/24/2015 06:20 AM, Alexander Aring wrote:
> This driver adds support for raspberry pi usb phy. This driver just
> adapt the current infrastructure for usb phys that usb controller uses
> to power the usb phy via regulators.

> diff --git a/Documentation/devicetree/bindings/phy/raspberrypi-phy.txt b/Documentation/devicetree/bindings/phy/raspberrypi-phy.txt

> +RASPBERRY PI USB PHY
> +
> +Required properties:
> + - compatible: raspberrypi,bcm2835-usbphy
> + - #phy-cells: must be 0
> + - phy-supply: regulator for the rpi usb phy
> +Refer to phy/phy-bindings.txt for the generic PHY binding properties
> +
> +Example:
> +
> +	usbphy: usbphy {
> +		compatible = "raspberrypi,bcm2835-usbphy";
> +		#phy-cells = <0>;
> +		phy-supply = <&usb_hcd_reg>;

Are you sure this power domain really is related to a USB *PHY*? "HCD"
usually means "host controller", which is usually separate from a "PHY"
(or perhaps includes a PHY but is still something more than a PHY).



More information about the linux-rpi-kernel mailing list