[v1 PATCH 1/4] Documentation: bindings: add dt doc for Rockchip USB Type-C PHY

[Rob Herring]

On Fri, Jun 03, 2016 at 11:15:08PM +0800, Chris Zhong wrote:
> This patch adds a binding that describes the Rockchip USB Type-C PHY
> for rk3399
> 
> Signed-off-by: Chris Zhong <zyw at rock-chips.com>
> 
> ---
> 
> Changes in v1:
> - add extcon node description
> - move the registers in phy driver
> - remove the suffix of reset
> 
>  .../devicetree/bindings/phy/phy-rockchip-typec.txt | 46 ++++++++++++++++++++++
>  1 file changed, 46 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> 
> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> new file mode 100644
> index 0000000..964e0f7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
> @@ -0,0 +1,46 @@
> +* ROCKCHIP type-c PHY
> +---------------------
> +
> +Required properties:
> + - compatible: should be "rockchip,rk3399-typec-phy0" or
> +			 "rockchip,rk3399-typec-phy1"

What's the difference between 0 and 1? If it is to handle the register 
offsets you have in the previous version and the phy blocks are 
identical, then the compatible strings should be the same.

> + - reg : Address and length of the usb phy control register set
> + - rockchip,grf : phandle to the syscon managing the "general
> +   register files"
> + - clocks : phandle + clock specifier for the phy clocks
> + - clock-names: string, clock name, must be "tcpdcore", "tcpdphy_ref";
> + - resets : a list of phandle + reset specifier pairs
> + - reset-names : string reset name, must be:
> +		 "tcphy", "tcphy_pipe", "uphy_tcphy"
> + - #phy-cells: Must be 0.  See ./phy-bindings.txt for details.
> + - extcon: extcon specifier for the Power Delivery