Re: [PATCH v1 1/2] dt-bindings: Sync the dts to this document

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On Wed, Oct 21, 2015 at 10:45 AM, Caesar Wang <caesar.upstream@xxxxxxxxx> wrote:
> Hi Rob,
>
> 在 2015年10月21日 23:18, Rob Herring 写道:
>>
>> On Tue, Oct 20, 2015 at 9:42 PM, Caesar Wang <wxt@xxxxxxxxxxxxxx> wrote:
>>>
>>> Add the OTP gpio state, we need switch the pin to gpio state
>>> before the TSADC controller is reset.
>>>
>>> Signed-off-by: Caesar Wang <wxt@xxxxxxxxxxxxxx>
>>> ---
>>>
>>> Changes in v1:
>>>    - As the Doug comments, add the 'init' property to sync document.
>>>
>>>   Documentation/devicetree/bindings/thermal/rockchip-thermal.txt | 5
>>> +++--
>>>   1 file changed, 3 insertions(+), 2 deletions(-)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>>> b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>>> index ef802de..28e84f7 100644
>>> --- a/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>>> +++ b/Documentation/devicetree/bindings/thermal/rockchip-thermal.txt
>>> @@ -27,8 +27,9 @@ tsadc: tsadc@ff280000 {
>>>          clock-names = "tsadc", "apb_pclk";
>>>          resets = <&cru SRST_TSADC>;
>>>          reset-names = "tsadc-apb";
>>> -       pinctrl-names = "default";
>>> -       pinctrl-0 = <&otp_out>;
>>> +       pinctrl-names = "init", "default";
>>> +       pinctrl-0 = <&otp_gpio>;
>>> +       pinctrl-1 = <&otp_out>;
>>
>> Are these optional or required? They only appear in the example.
>
>
> Yep,
> These are required for TSADC.

Then list them that way.

>
> I‘m assumed that's right,
> I think we don't need to introduce the pinctrl in this document.

You need to state that you use them and what valid names are. That is
a contract with the driver.

The example is extra information and should not be required to write a
dts entry.

Rob
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