On Fri, Jan 11, 2019 at 02:31:29PM +0100, Miquel Raynal wrote:
> Add bindings for Marvell Armada 3700 USB2 UTMI+ PHY.
>
> Signed-off-by: Miquel Raynal <miquel.ray...@bootlin.com>
> ---
> .../bindings/phy/phy-mvebu-utmi.txt | 37 +++++++++++++++++++
> 1 file changed, 37 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
>
> diff --git a/Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
> b/Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
> new file mode 100644
> index 000000000000..4ade05ce5d51
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/phy-mvebu-utmi.txt
> @@ -0,0 +1,37 @@
> +MVEBU A3700 UTMI PHY
> +--------------------
> +
> +USB2 UTMI+ PHY controllers can be found on the following Marvell MVEBU SoCs:
> +* Armada 3700
> +
> +On Armada 3700, there are two USB controllers, one is compatible with the
> USB2
> +and USB3 specifications and supports OTG. The other one is USB2 compliant and
> +only supports host mode. Both of these controllers come with a UTMI PHY.
This paragraph says the controllers are different, but are the PHYs
different?
> +
> +Required Properties:
> +
> +- compatible: Should be one of:
> + * "marvell,a3700-utmi-host-phy" for the PHY connected to
> + the USB2 host-only controller.
> + * "marvell,a3700-utmi-otg-phy" for the PHY connected to
> + the USB3 and USB2 OTG capable controller.
> +- reg: PHY IP register range.
> +- marvell,usb-misc-reg: handle on the "USB miscellaneous registers" shared
> + region covering registers related to both the host
> + controller and the PHY.
> +- #phy-cells: Standard property (Documentation: phy-bindings.txt) Should be
> 0.
> +
> +
> +Example:
> +
> + usb2_utmi_host_phy: phy@5f000 {
> + compatible = "marvell,armada-3700-utmi-host-phy";
> + reg = <0x5f000 0x800>;
> + marvell,usb-misc-reg = <&usb2_syscon>;
> + #phy-cells = <0>;
> + };
> +
> + usb2_syscon: system-controller@5f800 {
> + compatible = "syscon", "simple-mfd";
This is not valid because there's not a specific compatible string and
'simple-mfd' implies there are child nodes.
> + reg = <0x5f800 0x800>;
> + };
> --
> 2.19.1
>
