Hi,
On 2019/2/19 16:25, Sergei Shtylyov wrote:
> Hello!
>
> On 18.02.2019 14:23, Yu Chen wrote:
>
>> This patch adds binding documentation to support usb hub and usb
>> data role switch of Hisilicon HiKey960 Board.
>>
>> Cc: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
>> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
>> Cc: Mark Rutland <mark.rutland@xxxxxxx>
>> Cc: John Stultz <john.stultz@xxxxxxxxxx>
>> Cc: Binghui Wang <wangbinghui@xxxxxxxxxxxxx>
>> Signed-off-by: Yu Chen <chenyu56@xxxxxxxxxx>
>> ---
>> v1:
>> * Fix some format errors as suggested by Sergei.
>> * Modify gpio description to use gpiod API.
>> v2:
>> * Remove information about Hikey.
>> * Fix gpio description.
>> * Remove device_type of endpoint.
>> ---
>> ---
>> .../bindings/misc/hisilicon-hikey-usb.txt | 35 ++++++++++++++++++++++
>> 1 file changed, 35 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.txt
>>
>> diff --git a/Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.txt b/Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.txt
>> new file mode 100644
>> index 000000000000..c2b789b515df
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/misc/hisilicon-hikey-usb.txt
>> @@ -0,0 +1,35 @@
>> +Support usb hub and usb data role switch of Hisilicon HiKey960 Board.
>> +
>> +-----------------------------
>> +
>> +Required properties:
>> +- compatible: "hisilicon,gpio-hubv1","hisilicon,hikey960-usb"
>
> Only one of those, looking at your example?
"hisilicon,gpio-hubv1" is similar as "hisilicon,hikey960-usb".
> Need a space after comma, BTW.
OK. Thanks!
>
>> +- typec-vbus-gpios: gpio to control the vbus of typeC port
>> +- typec-vbus-enable-val: gpio value that enable the vbus of typeC port
>
> Hm, I thought that can be inferred from the GPIO specifier above...
>
OK. Thanks!
>> +- otg-switch-gpios: gpio to switch DP & DM between the hub and typeC port
>> +- hub-vdd33-en-gpios: gpio to enable the power of hub
>> +- pinctrl-0: pinctrl config
>
> You forgot about "pinctrl-names"...
OK. Thanks!
>
>> +
>> +Example
>> +-----
>> +
>> + hisi_hikey_usb: hisi_hikey_usb {
>> + compatible = "hisilicon,hikey960-usb";
>> + typec-vbus-gpios = <&gpio25 2 0>;
>> + typec-vbus-enable-val = <1>;
>> + otg-switch-gpios = <&gpio25 6 0>;
>> + hub-vdd33-en-gpios = <&gpio5 6 0>;
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&usbhub5734_pmx_func>;
>> +
>> + port {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + hikey_usb_ep: endpoint@0 {
>> + reg = <0>;
>> + remote-endpoint = <&dwc3_role_switch_notify>;
>> + };
>> + };
>> +
>> + };
>
> MBR, Sergei
>
> .
>
Thanks
Yu Chen
