Re: [PATCH] dt-bindings: usb: mtu3: add mediatek,usb3-drd property

[Macpaul Lin <macpaul.lin@mediatek.com>]

On 10/16/24 06:20, Rob Herring wrote:
> 	
> 
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> On Wed, Oct 16, 2024 at 01:21:00AM +0800, Macpaul Lin wrote:
>> Add optional 'mediatek,usb3-drd' property to MediaTek MTU3 DT Schema.
>> This flag specify whether it is a USB3 Dual-role device hardware.
>> 
>> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
>> ---
>>  Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml | 6 ++++++
>>  1 file changed, 6 insertions(+)
>> 
>> diff --git a/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml b/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
>> index d4e187c78a0b..1e70af0dac82 100644
>> --- a/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
>> +++ b/Documentation/devicetree/bindings/usb/mediatek,mtu3.yaml
>> @@ -155,6 +155,12 @@ properties:
>>        property is used. See graph.txt
>>      $ref: /schemas/graph.yaml#/properties/port
>>  
>> +  mediatek,usb3-drd:
>> +    $ref: /schemas/types.yaml#/definitions/flag
>> +    description:
>> +      Specify whether it is a USB3 Dual-role device hardware.
>> +    type: boolean
>> +
> 
> Don't the standard properties such as usb-role-switch or dr_mode work
> for you?

I've found there are some hardware capability registers could be read
when probing the device. I'll try if the platform I'm using could access
these capability registers.
This patch can be discard. If the hardware really need specify the 
capability in dts and there is no capability registers, I'll resend
this patch that time.

>>    enable-manual-drd:
>>      $ref: /schemas/types.yaml#/definitions/flag
>>      description:
>> -- 
>> 2.45.2
>> 
> 

Thanks!
Macpaul Lin