Hi Guenter,
On 2016/6/4 3:25, Guenter Roeck wrote:
> On Thu, Jun 02, 2016 at 02:48:09PM +0800, Frank Wang wrote:
>> Signed-off-by: Frank Wang <frank.wang at rock-chips.com>
>> ---
>>
>> Changes in v2:
>> - Changed vbus_host optional property from gpio to regulator.
>> - Specified vbus_otg-supply optional property.
>> - Specified otg_id and otg_bvalid property.
>>
>> .../bindings/phy/phy-rockchip-inno-usb2.txt | 55 ++++++++++++++++++++
>> 1 file changed, 55 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
>>
>> diff --git a/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
>> new file mode 100644
>> index 0000000..132e707
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.txt
>> @@ -0,0 +1,55 @@
>> +ROCKCHIP USB2.0 PHY WITH INNO IP BLOCK
>> +
>> +Required properties (phy (parent) node):
>> + - compatible : should contain:
>> + * "rockchip,rk3366-usb2phy"
>> + * "rockchip,rk3399-usb2phy"
>> + - #clock-cells : should be 0.
>> + - clock-names : specify the 480m output clk name.
>> +
>> +Optional properties:
>> + - vbus_host-supply : phandle to a regulator that supplies host vbus.
>> + - vbus_otg-supply : phandle to a regulator that supplies otg vbus.
>> +
>> +Required nodes : a sub-node is required for each port the phy provides.
>> + The sub-node name is used to identify host or otg port.
>> +
> Would it make sense to also specify the sub-node names ? The driver matches
> "host-port", and presumably once supported "otg-port". Someone not knowing
> this may specify "hostport" or some other name variant and wonder why nothing
> works as expected.
Well, Yeah, I will correct it in the next patch (patch v3).
>> +Required properties (port (child) node):
>> + - #phy-cells : must be 0. See ./phy-bindings.txt for details.
>> + - interrupts : specify an interrupt for each entry in interrupt-names.
>> + - interrupt-names : a list which shall be the following entries:
>> + * "otg_id" : for the otg id interrupt.
>> + * "otg_bvalid" : for the otg vbus interrupt.
>> + * "linestate" : for the host or otg linestate interrupt.
>> +
>> +Example:
>> +
>> +grf: syscon at ff770000 {
>> + compatible = "rockchip,rk3366-grf", "syscon", "simple-mfd";
>> + #address-cells = <1>;
>> + #size-cells = <1>;
>> +
>> +...
>> +
>> + u2phy: usb2-phy {
>> + compatible = "rockchip,rk3366-usb2phy";
>> + #clock-cells = <0>;
>> + clock-output-names = "sclk_otgphy0_480m";
>> +
>> + u2phy_otg: otg-port {
>> + #phy-cells = <0>;
>> + interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
>> + <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
>> + interrupt-names = "otg_id", "otg_bvalid", "linestate";
>> + status = "okay";
>> + };
>> +
>> + u2phy_host: host-port {
>> + #phy-cells = <0>;
>> + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
>> + interrupt-names = "linestate";
>> + status = "okay";
>> + };
>> + };
>> +};
>
>
