diff mbox series

[v3,1/5] dt-bindings: display: msm: dp-controller: document SM8450 compatible

Message ID 20230206-topic-sm8450-upstream-dp-controller-v3-1-636ef9e99932@linaro.org
State Superseded
Headers show
Series arm64: dts: qcom: add DP Controller to SM8350 & SM8450 DTS | expand

Commit Message

Neil Armstrong Feb. 10, 2023, 2:44 p.m. UTC
The SM8450 & SM350 shares the same DT TX IP version, use the
SM8350 compatible as fallback for SM8450.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 .../bindings/display/msm/dp-controller.yaml        | 25 +++++++++++++---------
 1 file changed, 15 insertions(+), 10 deletions(-)

Comments

Dmitry Baryshkov Feb. 10, 2023, 3:16 p.m. UTC | #1
On 10/02/2023 16:44, Neil Armstrong wrote:
> The SM8450 & SM350 shares the same DT TX IP version, use the
> SM8350 compatible as fallback for SM8450.
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> ---
>   .../bindings/display/msm/dp-controller.yaml        | 25 +++++++++++++---------
>   1 file changed, 15 insertions(+), 10 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> index 0e8d8df686dc..f0c2237d5f82 100644
> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> @@ -15,16 +15,21 @@ description: |
>   
>   properties:
>     compatible:
> -    enum:
> -      - qcom,sc7180-dp
> -      - qcom,sc7280-dp
> -      - qcom,sc7280-edp
> -      - qcom,sc8180x-dp
> -      - qcom,sc8180x-edp
> -      - qcom,sc8280xp-dp
> -      - qcom,sc8280xp-edp
> -      - qcom,sdm845-dp
> -      - qcom,sm8350-dp
> +    oneOf:
> +      - enum:
> +          - qcom,sc7180-dp
> +          - qcom,sc7280-dp
> +          - qcom,sc7280-edp
> +          - qcom,sc8180x-dp
> +          - qcom,sc8180x-edp
> +          - qcom,sc8280xp-dp
> +          - qcom,sc8280xp-edp
> +          - qcom,sdm845-dp
> +          - qcom,sm8350-dp
> +      - items:
> +          - enum:
> +              - qcom,sm8450-dp
> +          - const: qcom,sm8350-dp

Neil, Krzysztof, I'm not convinced that this is worth all the troubles. 
I think it would be easier to have a flat list of compatibles and handle 
all the differences inside the driver. For example, for sdm845 we simply 
reused sc7180 config internally, while keeping separate compatible strings.

>   
>     reg:
>       minItems: 4
>
Krzysztof Kozlowski Feb. 11, 2023, 11:38 a.m. UTC | #2
On 10/02/2023 16:27, Neil Armstrong wrote:
> On 10/02/2023 16:16, Dmitry Baryshkov wrote:
>> On 10/02/2023 16:44, Neil Armstrong wrote:
>>> The SM8450 & SM350 shares the same DT TX IP version, use the
>>> SM8350 compatible as fallback for SM8450.
>>>
>>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
>>> ---
>>>   .../bindings/display/msm/dp-controller.yaml        | 25 +++++++++++++---------
>>>   1 file changed, 15 insertions(+), 10 deletions(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>>> index 0e8d8df686dc..f0c2237d5f82 100644
>>> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>>> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
>>> @@ -15,16 +15,21 @@ description: |
>>>   properties:
>>>     compatible:
>>> -    enum:
>>> -      - qcom,sc7180-dp
>>> -      - qcom,sc7280-dp
>>> -      - qcom,sc7280-edp
>>> -      - qcom,sc8180x-dp
>>> -      - qcom,sc8180x-edp
>>> -      - qcom,sc8280xp-dp
>>> -      - qcom,sc8280xp-edp
>>> -      - qcom,sdm845-dp
>>> -      - qcom,sm8350-dp
>>> +    oneOf:
>>> +      - enum:
>>> +          - qcom,sc7180-dp
>>> +          - qcom,sc7280-dp
>>> +          - qcom,sc7280-edp
>>> +          - qcom,sc8180x-dp
>>> +          - qcom,sc8180x-edp
>>> +          - qcom,sc8280xp-dp
>>> +          - qcom,sc8280xp-edp
>>> +          - qcom,sdm845-dp
>>> +          - qcom,sm8350-dp
>>> +      - items:
>>> +          - enum:
>>> +              - qcom,sm8450-dp
>>> +          - const: qcom,sm8350-dp
>>
>> Neil, Krzysztof, I'm not convinced that this is worth all the troubles. I think it would be easier to have a flat list of compatibles and handle all the differences inside the driver. For example, for sdm845 we simply reused sc7180 config internally, while keeping separate compatible strings.
> 
> Sure, but the doc reports the SM8350, SM8450 and SM550 has the exact same IP version, isn't fallback for that cat ?

Exactly.

What's the trouble with the list Neil created?

Best regards,
Krzysztof
Dmitry Baryshkov Feb. 11, 2023, 12:58 p.m. UTC | #3
Hi,

On Sat, 11 Feb 2023 at 13:38, Krzysztof Kozlowski
<krzysztof.kozlowski@linaro.org> wrote:
>
> On 10/02/2023 16:27, Neil Armstrong wrote:
> > On 10/02/2023 16:16, Dmitry Baryshkov wrote:
> >> On 10/02/2023 16:44, Neil Armstrong wrote:
> >>> The SM8450 & SM350 shares the same DT TX IP version, use the
> >>> SM8350 compatible as fallback for SM8450.
> >>>
> >>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> >>> Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
> >>> ---
> >>>   .../bindings/display/msm/dp-controller.yaml        | 25 +++++++++++++---------
> >>>   1 file changed, 15 insertions(+), 10 deletions(-)
> >>>
> >>> diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> >>> index 0e8d8df686dc..f0c2237d5f82 100644
> >>> --- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> >>> +++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
> >>> @@ -15,16 +15,21 @@ description: |
> >>>   properties:
> >>>     compatible:
> >>> -    enum:
> >>> -      - qcom,sc7180-dp
> >>> -      - qcom,sc7280-dp
> >>> -      - qcom,sc7280-edp
> >>> -      - qcom,sc8180x-dp
> >>> -      - qcom,sc8180x-edp
> >>> -      - qcom,sc8280xp-dp
> >>> -      - qcom,sc8280xp-edp
> >>> -      - qcom,sdm845-dp
> >>> -      - qcom,sm8350-dp
> >>> +    oneOf:
> >>> +      - enum:
> >>> +          - qcom,sc7180-dp
> >>> +          - qcom,sc7280-dp
> >>> +          - qcom,sc7280-edp
> >>> +          - qcom,sc8180x-dp
> >>> +          - qcom,sc8180x-edp
> >>> +          - qcom,sc8280xp-dp
> >>> +          - qcom,sc8280xp-edp
> >>> +          - qcom,sdm845-dp
> >>> +          - qcom,sm8350-dp
> >>> +      - items:
> >>> +          - enum:
> >>> +              - qcom,sm8450-dp
> >>> +          - const: qcom,sm8350-dp
> >>
> >> Neil, Krzysztof, I'm not convinced that this is worth all the troubles. I think it would be easier to have a flat list of compatibles and handle all the differences inside the driver. For example, for sdm845 we simply reused sc7180 config internally, while keeping separate compatible strings.
> >
> > Sure, but the doc reports the SM8350, SM8450 and SM550 has the exact same IP version, isn't fallback for that cat ?
>
> Exactly.
>
> What's the trouble with the list Neil created?

No troubles. I felt that it fell out of the line, but no other issues.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
index 0e8d8df686dc..f0c2237d5f82 100644
--- a/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
+++ b/Documentation/devicetree/bindings/display/msm/dp-controller.yaml
@@ -15,16 +15,21 @@  description: |
 
 properties:
   compatible:
-    enum:
-      - qcom,sc7180-dp
-      - qcom,sc7280-dp
-      - qcom,sc7280-edp
-      - qcom,sc8180x-dp
-      - qcom,sc8180x-edp
-      - qcom,sc8280xp-dp
-      - qcom,sc8280xp-edp
-      - qcom,sdm845-dp
-      - qcom,sm8350-dp
+    oneOf:
+      - enum:
+          - qcom,sc7180-dp
+          - qcom,sc7280-dp
+          - qcom,sc7280-edp
+          - qcom,sc8180x-dp
+          - qcom,sc8180x-edp
+          - qcom,sc8280xp-dp
+          - qcom,sc8280xp-edp
+          - qcom,sdm845-dp
+          - qcom,sm8350-dp
+      - items:
+          - enum:
+              - qcom,sm8450-dp
+          - const: qcom,sm8350-dp
 
   reg:
     minItems: 4