diff mbox series

[v2,1/5] dt-bindings: phy: imx8mq-usb: add compatible "fsl,imx95-usb-phy"

Message ID 20240806050639.1013152-1-xu.yang_2@nxp.com
State Superseded
Headers show
Series [v2,1/5] dt-bindings: phy: imx8mq-usb: add compatible "fsl,imx95-usb-phy" | expand

Commit Message

Xu Yang Aug. 6, 2024, 5:06 a.m. UTC
The usb phy in i.MX95 is compatible with i.MX8MP's, this will add a
compatible "fsl,imx95-usb-phy" for i.MX95. Also change reg maxItems
to 2 since i.MX95 needs another regmap to control Type-C Assist (TCA)
block. Since i.MX95 usb phy is able to switch SS lanes, this will also
add orientation-switch and port property to the file.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>

---
Changes in v2:
 - replace minItems with description in reg property
 - remove orientation-switch and port
 - refer to usb-switch.yaml
 - use unevaluatedProperties
---
 .../bindings/phy/fsl,imx8mq-usb-phy.yaml      | 42 ++++++++++++++++---
 1 file changed, 37 insertions(+), 5 deletions(-)

Comments

Krzysztof Kozlowski Aug. 7, 2024, 5:48 a.m. UTC | #1
On 06/08/2024 18:11, Frank Li wrote:
> On Tue, Aug 06, 2024 at 10:29:47AM +0200, Krzysztof Kozlowski wrote:
>> On 06/08/2024 07:06, Xu Yang wrote:
>>> The usb phy in i.MX95 is compatible with i.MX8MP's, this will add a
>>> compatible "fsl,imx95-usb-phy" for i.MX95. Also change reg maxItems
>>> to 2 since i.MX95 needs another regmap to control Type-C Assist (TCA)
>>> block. Since i.MX95 usb phy is able to switch SS lanes, this will also
>>> add orientation-switch and port property to the file.
>>>
>>> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
>>>
>>> ---
>>> Changes in v2:
>>>  - replace minItems with description in reg property
>>>  - remove orientation-switch and port
>>>  - refer to usb-switch.yaml
>>>  - use unevaluatedProperties
>>> ---
>>>  .../bindings/phy/fsl,imx8mq-usb-phy.yaml      | 42 ++++++++++++++++---
>>>  1 file changed, 37 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml b/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
>>> index dc3a3f709fea..6d6d211883ae 100644
>>> --- a/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
>>> +++ b/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
>>> @@ -11,12 +11,17 @@ maintainers:
>>>
>>>  properties:
>>>    compatible:
>>> -    enum:
>>> -      - fsl,imx8mq-usb-phy
>>> -      - fsl,imx8mp-usb-phy
>>> +    oneOf:
>>> +      - enum:
>>> +          - fsl,imx8mq-usb-phy
>>> +          - fsl,imx8mp-usb-phy
>>> +      - items:
>>> +          - const: fsl,imx95-usb-phy
>>> +          - const: fsl,imx8mp-usb-phy
>>>
>>>    reg:
>>> -    maxItems: 1
>>> +    minItems: 1
>>> +    maxItems: 2
>>>
>>>    "#phy-cells":
>>>      const: 0
>>> @@ -89,7 +94,34 @@ required:
>>>    - clocks
>>>    - clock-names
>>>
>>> -additionalProperties: false
>>> +allOf:
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - fsl,imx95-usb-phy
>>> +    then:
>>> +      properties:
>>> +        reg:
>>> +          items:
>>> +            - description: USB PHY Control range
>>> +            - description: USB PHY TCA Block range
>>> +    else:
>>> +      properties:
>>> +        reg:
>>> +          maxItems: 1
>>> +
>>> +  - if:
>>> +      properties:
>>> +        compatible:
>>> +          contains:
>>> +            enum:
>>> +              - fsl,imx95-usb-phy
>>> +    then:
>>> +      $ref: /schemas/usb/usb-switch.yaml#
>>
>> ref should be rather in top-level. You can always disallow certain
>> properties for devices, if they are really not applicable.
> 
> There are some "required" in usb-switch.yaml,
> 
> oneOf:
>   - required:
>       - port
>   - required:
>       - ports
> 
> If put on the top, it may cause DTB check warning for other compatible
> strings, which have not support usb-switch.

Hm, indeed, that's unusual case to have such different devices in one
schema. Did you test that above $ref in if: actually works?

Best regards,
Krzysztof
Krzysztof Kozlowski Aug. 7, 2024, 5:59 a.m. UTC | #2
On 07/08/2024 07:57, Xu Yang wrote:
> On Wed, Aug 07, 2024 at 07:48:43AM +0200, Krzysztof Kozlowski wrote:
>> On 06/08/2024 18:11, Frank Li wrote:
>>> On Tue, Aug 06, 2024 at 10:29:47AM +0200, Krzysztof Kozlowski wrote:
>>>> On 06/08/2024 07:06, Xu Yang wrote:
>>>>> The usb phy in i.MX95 is compatible with i.MX8MP's, this will add a
>>>>> compatible "fsl,imx95-usb-phy" for i.MX95. Also change reg maxItems
>>>>> to 2 since i.MX95 needs another regmap to control Type-C Assist (TCA)
>>>>> block. Since i.MX95 usb phy is able to switch SS lanes, this will also
>>>>> add orientation-switch and port property to the file.
>>>>>
>>>>> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
>>>>>
>>>>> ---
>>>>> Changes in v2:
>>>>>  - replace minItems with description in reg property
>>>>>  - remove orientation-switch and port
>>>>>  - refer to usb-switch.yaml
>>>>>  - use unevaluatedProperties
>>>>> ---
>>>>>  .../bindings/phy/fsl,imx8mq-usb-phy.yaml      | 42 ++++++++++++++++---
>>>>>  1 file changed, 37 insertions(+), 5 deletions(-)
>>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml b/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
>>>>> index dc3a3f709fea..6d6d211883ae 100644
>>>>> --- a/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
>>>>> +++ b/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
>>>>> @@ -11,12 +11,17 @@ maintainers:
>>>>>
>>>>>  properties:
>>>>>    compatible:
>>>>> -    enum:
>>>>> -      - fsl,imx8mq-usb-phy
>>>>> -      - fsl,imx8mp-usb-phy
>>>>> +    oneOf:
>>>>> +      - enum:
>>>>> +          - fsl,imx8mq-usb-phy
>>>>> +          - fsl,imx8mp-usb-phy
>>>>> +      - items:
>>>>> +          - const: fsl,imx95-usb-phy
>>>>> +          - const: fsl,imx8mp-usb-phy
>>>>>
>>>>>    reg:
>>>>> -    maxItems: 1
>>>>> +    minItems: 1
>>>>> +    maxItems: 2
>>>>>
>>>>>    "#phy-cells":
>>>>>      const: 0
>>>>> @@ -89,7 +94,34 @@ required:
>>>>>    - clocks
>>>>>    - clock-names
>>>>>
>>>>> -additionalProperties: false
>>>>> +allOf:
>>>>> +  - if:
>>>>> +      properties:
>>>>> +        compatible:
>>>>> +          contains:
>>>>> +            enum:
>>>>> +              - fsl,imx95-usb-phy
>>>>> +    then:
>>>>> +      properties:
>>>>> +        reg:
>>>>> +          items:
>>>>> +            - description: USB PHY Control range
>>>>> +            - description: USB PHY TCA Block range
>>>>> +    else:
>>>>> +      properties:
>>>>> +        reg:
>>>>> +          maxItems: 1
>>>>> +
>>>>> +  - if:
>>>>> +      properties:
>>>>> +        compatible:
>>>>> +          contains:
>>>>> +            enum:
>>>>> +              - fsl,imx95-usb-phy
>>>>> +    then:
>>>>> +      $ref: /schemas/usb/usb-switch.yaml#
>>>>
>>>> ref should be rather in top-level. You can always disallow certain
>>>> properties for devices, if they are really not applicable.
>>>
>>> There are some "required" in usb-switch.yaml,
>>>
>>> oneOf:
>>>   - required:
>>>       - port
>>>   - required:
>>>       - ports
>>>
>>> If put on the top, it may cause DTB check warning for other compatible
>>> strings, which have not support usb-switch.
>>
>> Hm, indeed, that's unusual case to have such different devices in one
>> schema. Did you test that above $ref in if: actually works?
> 
> Yes, it works and this yaml pass dt_binding_check and dtbs_check. 

I know it passes, I am asking whether it actually works. Is the $ref
actually effective? Is it properly applied?

Best regards,
Krzysztof
Xu Yang Aug. 7, 2024, 7:11 a.m. UTC | #3
On Wed, Aug 07, 2024 at 07:59:02AM +0200, Krzysztof Kozlowski wrote:
> On 07/08/2024 07:57, Xu Yang wrote:
> > On Wed, Aug 07, 2024 at 07:48:43AM +0200, Krzysztof Kozlowski wrote:
> >> On 06/08/2024 18:11, Frank Li wrote:
> >>> On Tue, Aug 06, 2024 at 10:29:47AM +0200, Krzysztof Kozlowski wrote:
> >>>> On 06/08/2024 07:06, Xu Yang wrote:
> >>>>> The usb phy in i.MX95 is compatible with i.MX8MP's, this will add a
> >>>>> compatible "fsl,imx95-usb-phy" for i.MX95. Also change reg maxItems
> >>>>> to 2 since i.MX95 needs another regmap to control Type-C Assist (TCA)
> >>>>> block. Since i.MX95 usb phy is able to switch SS lanes, this will also
> >>>>> add orientation-switch and port property to the file.
> >>>>>
> >>>>> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
> >>>>>
> >>>>> ---
> >>>>> Changes in v2:
> >>>>>  - replace minItems with description in reg property
> >>>>>  - remove orientation-switch and port
> >>>>>  - refer to usb-switch.yaml
> >>>>>  - use unevaluatedProperties
> >>>>>
[...]
> >>>>
> >>>> ref should be rather in top-level. You can always disallow certain
> >>>> properties for devices, if they are really not applicable.
> >>>
> >>> There are some "required" in usb-switch.yaml,
> >>>
> >>> oneOf:
> >>>   - required:
> >>>       - port
> >>>   - required:
> >>>       - ports
> >>>
> >>> If put on the top, it may cause DTB check warning for other compatible
> >>> strings, which have not support usb-switch.
> >>
> >> Hm, indeed, that's unusual case to have such different devices in one
> >> schema. Did you test that above $ref in if: actually works?
> > 
> > Yes, it works and this yaml pass dt_binding_check and dtbs_check. 
> 
> I know it passes, I am asking whether it actually works. Is the $ref
> actually effective? Is it properly applied?

If imx95 usb phy node doesn't contain "orientation-switch" and "port", dtb check will
show below error:

usb/arch/arm64/boot/dts/freescale/imx95-19x19-evk.dtb: phy@4c1f0040: 'oneOf' conditional failed, one must be fixed:
        'port' is a required property
        'ports' is a required property
        from schema $id: http://devicetree.org/schemas/phy/fsl,imx8mq-usb-phy.yaml#

Do you want other test results?

Thanks,
Xu Yang

> 
> Best regards,
> Krzysztof
>
Krzysztof Kozlowski Aug. 7, 2024, 7:20 a.m. UTC | #4
On 06/08/2024 07:06, Xu Yang wrote:
> The usb phy in i.MX95 is compatible with i.MX8MP's, this will add a
> compatible "fsl,imx95-usb-phy" for i.MX95. Also change reg maxItems
> to 2 since i.MX95 needs another regmap to control Type-C Assist (TCA)
> block. Since i.MX95 usb phy is able to switch SS lanes, this will also
> add orientation-switch and port property to the file.
> 
> Signed-off-by: Xu Yang <xu.yang_2@nxp.com>


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml b/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
index dc3a3f709fea..6d6d211883ae 100644
--- a/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/fsl,imx8mq-usb-phy.yaml
@@ -11,12 +11,17 @@  maintainers:
 
 properties:
   compatible:
-    enum:
-      - fsl,imx8mq-usb-phy
-      - fsl,imx8mp-usb-phy
+    oneOf:
+      - enum:
+          - fsl,imx8mq-usb-phy
+          - fsl,imx8mp-usb-phy
+      - items:
+          - const: fsl,imx95-usb-phy
+          - const: fsl,imx8mp-usb-phy
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 2
 
   "#phy-cells":
     const: 0
@@ -89,7 +94,34 @@  required:
   - clocks
   - clock-names
 
-additionalProperties: false
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx95-usb-phy
+    then:
+      properties:
+        reg:
+          items:
+            - description: USB PHY Control range
+            - description: USB PHY TCA Block range
+    else:
+      properties:
+        reg:
+          maxItems: 1
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx95-usb-phy
+    then:
+      $ref: /schemas/usb/usb-switch.yaml#
+
+unevaluatedProperties: false
 
 examples:
   - |