[PATCH v2 1/4] dt-bindings: usb: generic-ohci: add AT91RM9200 OHCI binding support

Charan Pedumuru charan.pedumuru at gmail.com
Fri Mar 6 23:02:00 PST 2026



On 06-03-2026 06:15, Rob Herring wrote:
> On Tue, Feb 24, 2026 at 01:12:58PM +0000, Charan Pedumuru wrote:
>> Add binding support for the Atmel AT91RM9200 OHCI USB host controller
>> to the generic OHCI schema.
>>
>> Signed-off-by: Charan Pedumuru <charan.pedumuru at gmail.com>
>> ---
>>  .../devicetree/bindings/usb/generic-ohci.yaml      | 27 ++++++++++++++++++++++
>>  1 file changed, 27 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/usb/generic-ohci.yaml b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
>> index 961cbf85eeb5..ab8a49142386 100644
>> --- a/Documentation/devicetree/bindings/usb/generic-ohci.yaml
>> +++ b/Documentation/devicetree/bindings/usb/generic-ohci.yaml
>> @@ -55,6 +55,7 @@ properties:
>>            - ti,ohci-omap3
>>        - items:
>>            - enum:
>> +              - atmel,at91rm9200-ohci
>>                - cavium,octeon-6335-ohci
>>                - nintendo,hollywood-usb-ohci
>>                - nxp,ohci-nxp
>> @@ -137,6 +138,16 @@ properties:
>>        The associated ISP1301 device. Necessary for the UDC controller for
>>        connecting to the USB physical layer.
>>  
>> +  atmel,vbus-gpio:
>> +    description: GPIO used to control or sense the USB VBUS power.
>> +    minItems: 1
>> +    maxItems: 3
>> +
>> +  atmel,oc-gpio:
>> +    description: GPIO used to signal USB overcurrent condition.
>> +    minItems: 1
>> +    maxItems: 3
>> +
>>  required:
>>    - compatible
>>    - reg
>> @@ -144,6 +155,22 @@ required:
>>  
>>  allOf:
>>    - $ref: usb-hcd.yaml
>> +  - if:
>> +      properties:
>> +        compatible:
>> +          contains:
>> +            const: atmel,at91rm9200-ohci
>> +    then:
>> +      properties:
>> +        clock-names:
>> +          items:
>> +            - const: ohci_clk
>> +            - const: hclk
>> +            - const: uhpck
>> +
>> +      required:
>> +        - clocks
>> +        - clock-names
> 
>        else:
>          properties:
>            atmel,vbus-gpio: false
>            atmel,oc-gpio: false

Sure, I will add it.

> 
>>    - if:
>>        not:
>>          properties:
>>
>> -- 
>> 2.53.0
>>

-- 
Best Regards,
Charan.




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