diff mbox series

[v3,1/5] dt-bindings: interconnect: Update property for icc-rpm path tag

Message ID 20220704093029.1126609-2-leo.yan@linaro.org (mailing list archive)
State Superseded
Headers show
Series interconnect: qcom: icc-rpm: Support bucket | expand

Commit Message

Leo Yan July 4, 2022, 9:30 a.m. UTC
To support path tag in icc-rpm driver, the "#interconnect-cells"
property is updated as enumerate values: 1 or 2.  Setting to 1 means
it is compatible with old DT binding that interconnect path only
contains node id; if set to 2 for "#interconnect-cells" property, then
the second specifier is used as a tag (e.g. vote for which buckets).

Signed-off-by: Leo Yan <leo.yan@linaro.org>
---
 .../devicetree/bindings/interconnect/qcom,rpm.yaml         | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Comments

Krzysztof Kozlowski July 4, 2022, 12:46 p.m. UTC | #1
On 04/07/2022 11:30, Leo Yan wrote:
> To support path tag in icc-rpm driver, the "#interconnect-cells"
> property is updated as enumerate values: 1 or 2.  Setting to 1 means
> it is compatible with old DT binding that interconnect path only
> contains node id; if set to 2 for "#interconnect-cells" property, then
> the second specifier is used as a tag (e.g. vote for which buckets).
> 
> Signed-off-by: Leo Yan <leo.yan@linaro.org>
> ---
>  .../devicetree/bindings/interconnect/qcom,rpm.yaml         | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> index 8a676fef8c1d..cdfe419e7339 100644
> --- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> @@ -45,7 +45,12 @@ properties:
>        - qcom,sdm660-snoc
>  
>    '#interconnect-cells':
> -    const: 1
> +    description: |
> +      Number of interconnect specifier. 

Isn't this sentence obvious (common for every bindings)? Just skip it.

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

> Value: <1> is one cell in a
> +      interconnect specifier for the interconnect node id, <2> requires
> +      the interconnect node id and an extra path tag.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    enum: [ 1, 2 ]
>  
>    clocks:
>      minItems: 2


Best regards,
Krzysztof
Krzysztof Kozlowski July 4, 2022, 12:47 p.m. UTC | #2
On 04/07/2022 11:30, Leo Yan wrote:
> To support path tag in icc-rpm driver, the "#interconnect-cells"
> property is updated as enumerate values: 1 or 2.  Setting to 1 means
> it is compatible with old DT binding that interconnect path only
> contains node id; if set to 2 for "#interconnect-cells" property, then
> the second specifier is used as a tag (e.g. vote for which buckets).
> 
> Signed-off-by: Leo Yan <leo.yan@linaro.org>
> ---
>  .../devicetree/bindings/interconnect/qcom,rpm.yaml         | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> index 8a676fef8c1d..cdfe419e7339 100644
> --- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> @@ -45,7 +45,12 @@ properties:
>        - qcom,sdm660-snoc
>  
>    '#interconnect-cells':
> -    const: 1
> +    description: |
> +      Number of interconnect specifier. Value: <1> is one cell in a
> +      interconnect specifier for the interconnect node id, <2> requires
> +      the interconnect node id and an extra path tag.
> +    $ref: /schemas/types.yaml#/definitions/uint32

Ah, too fast.  No ack. This ref is also pointless and not explained in
commit msg.

> +    enum: [ 1, 2 ]
>  
>    clocks:
>      minItems: 2


Best regards,
Krzysztof
Leo Yan July 4, 2022, 1:07 p.m. UTC | #3
On Mon, Jul 04, 2022 at 02:47:13PM +0200, Krzysztof Kozlowski wrote:
> On 04/07/2022 11:30, Leo Yan wrote:
> > To support path tag in icc-rpm driver, the "#interconnect-cells"
> > property is updated as enumerate values: 1 or 2.  Setting to 1 means
> > it is compatible with old DT binding that interconnect path only
> > contains node id; if set to 2 for "#interconnect-cells" property, then
> > the second specifier is used as a tag (e.g. vote for which buckets).
> > 
> > Signed-off-by: Leo Yan <leo.yan@linaro.org>
> > ---
> >  .../devicetree/bindings/interconnect/qcom,rpm.yaml         | 7 ++++++-
> >  1 file changed, 6 insertions(+), 1 deletion(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> > index 8a676fef8c1d..cdfe419e7339 100644
> > --- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> > +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
> > @@ -45,7 +45,12 @@ properties:
> >        - qcom,sdm660-snoc
> >  
> >    '#interconnect-cells':
> > -    const: 1
> > +    description: |
> > +      Number of interconnect specifier. Value: <1> is one cell in a
> > +      interconnect specifier for the interconnect node id, <2> requires
> > +      the interconnect node id and an extra path tag.
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> 
> Ah, too fast.  No ack. This ref is also pointless and not explained in
> commit msg.

I referred other DT binding file for adding $ref to specify property
type [1], so it's confused why it's pointless, anyway, I can drop $ref
in next spin.

Thanks a lot for the review!

Leo

[1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/arm/l2c2x0.yaml#n153
Krzysztof Kozlowski July 4, 2022, 1:50 p.m. UTC | #4
On 04/07/2022 15:07, Leo Yan wrote:
> On Mon, Jul 04, 2022 at 02:47:13PM +0200, Krzysztof Kozlowski wrote:
>> On 04/07/2022 11:30, Leo Yan wrote:
>>> To support path tag in icc-rpm driver, the "#interconnect-cells"
>>> property is updated as enumerate values: 1 or 2.  Setting to 1 means
>>> it is compatible with old DT binding that interconnect path only
>>> contains node id; if set to 2 for "#interconnect-cells" property, then
>>> the second specifier is used as a tag (e.g. vote for which buckets).
>>>
>>> Signed-off-by: Leo Yan <leo.yan@linaro.org>
>>> ---
>>>  .../devicetree/bindings/interconnect/qcom,rpm.yaml         | 7 ++++++-
>>>  1 file changed, 6 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
>>> index 8a676fef8c1d..cdfe419e7339 100644
>>> --- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
>>> +++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
>>> @@ -45,7 +45,12 @@ properties:
>>>        - qcom,sdm660-snoc
>>>  
>>>    '#interconnect-cells':
>>> -    const: 1
>>> +    description: |
>>> +      Number of interconnect specifier. Value: <1> is one cell in a
>>> +      interconnect specifier for the interconnect node id, <2> requires
>>> +      the interconnect node id and an extra path tag.
>>> +    $ref: /schemas/types.yaml#/definitions/uint32
>>
>> Ah, too fast.  No ack. This ref is also pointless and not explained in
>> commit msg.
> 
> I referred other DT binding file for adding $ref to specify property
> type [1], so it's confused why it's pointless, anyway, I can drop $ref
> in next spin.
> 
> Thanks a lot for the review!

The "arm,prefetch-offset" is not a cells property.

Best regards,
Krzysztof
Leo Yan July 4, 2022, 2:12 p.m. UTC | #5
On Mon, Jul 04, 2022 at 03:50:41PM +0200, Krzysztof Kozlowski wrote:

[...]

> >>>    '#interconnect-cells':
> >>> -    const: 1
> >>> +    description: |
> >>> +      Number of interconnect specifier. Value: <1> is one cell in a
> >>> +      interconnect specifier for the interconnect node id, <2> requires
> >>> +      the interconnect node id and an extra path tag.
> >>> +    $ref: /schemas/types.yaml#/definitions/uint32
> >>
> >> Ah, too fast.  No ack. This ref is also pointless and not explained in
> >> commit msg.
> > 
> > I referred other DT binding file for adding $ref to specify property
> > type [1], so it's confused why it's pointless, anyway, I can drop $ref
> > in next spin.
> > 
> > Thanks a lot for the review!
> 
> The "arm,prefetch-offset" is not a cells property.

Understand.  Will drop $ref for in new patch.

Thanks,
Leo
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
index 8a676fef8c1d..cdfe419e7339 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
@@ -45,7 +45,12 @@  properties:
       - qcom,sdm660-snoc
 
   '#interconnect-cells':
-    const: 1
+    description: |
+      Number of interconnect specifier. Value: <1> is one cell in a
+      interconnect specifier for the interconnect node id, <2> requires
+      the interconnect node id and an extra path tag.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [ 1, 2 ]
 
   clocks:
     minItems: 2