diff mbox series

[1/3] dt-bindings: display/msm: gpu: Document A612 GPU

Message ID 20241126-qcs615-gpu-dt-v1-1-a87782976dad@quicinc.com (mailing list archive)
State New
Headers show
Series Devicetree changes for QCS615's GPU | expand

Commit Message

Akhil P Oommen Nov. 26, 2024, 2:06 p.m. UTC
A612 GPU requires an additional smmu_vote clock. Update the bindings to
reflect this.

Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
---
 .../devicetree/bindings/display/msm/gpu.yaml       | 28 ++++++++++++----------
 1 file changed, 16 insertions(+), 12 deletions(-)

Comments

Krzysztof Kozlowski Nov. 26, 2024, 2:12 p.m. UTC | #1
On 26/11/2024 15:06, Akhil P Oommen wrote:
> A612 GPU requires an additional smmu_vote clock. Update the bindings to
> reflect this.
> 
> Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
> ---
>  .../devicetree/bindings/display/msm/gpu.yaml       | 28 ++++++++++++----------
>  1 file changed, 16 insertions(+), 12 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
> index 6ddc72fd85b04537ea270754a897b4e7eb269641..201150d3151b55c26c95832d36f4e02f66060a25 100644
> --- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
> @@ -187,6 +187,7 @@ allOf:
>              enum:
>                - qcom,adreno-610.0
>                - qcom,adreno-619.1
> +              - qcom,adreno-612.0

Keep things ordered.

>      then:
>        properties:
>          clocks:
> @@ -195,18 +196,21 @@ allOf:
>  
>          clock-names:
>            items:
> -            - const: core
> -              description: GPU Core clock
> -            - const: iface
> -              description: GPU Interface clock
> -            - const: mem_iface
> -              description: GPU Memory Interface clock
> -            - const: alt_mem_iface
> -              description: GPU Alternative Memory Interface clock
> -            - const: gmu
> -              description: CX GMU clock
> -            - const: xo
> -              description: GPUCC clocksource clock
> +            anyOf:

No, this makes everything total mess. Why xo now is allowed to be first
clock?

Drop and explain in commit msg why other devices now get smmu clock.

BTW, I am pretty sure this breaks existing platforms.

Best regards,
Krzysztof
Akhil P Oommen Nov. 26, 2024, 2:32 p.m. UTC | #2
On 11/26/2024 7:36 PM, Akhil P Oommen wrote:
> A612 GPU requires an additional smmu_vote clock. Update the bindings to
> reflect this.
> 
> Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
> ---
>  .../devicetree/bindings/display/msm/gpu.yaml       | 28 ++++++++++++----------
>  1 file changed, 16 insertions(+), 12 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
> index 6ddc72fd85b04537ea270754a897b4e7eb269641..201150d3151b55c26c95832d36f4e02f66060a25 100644
> --- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
> +++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
> @@ -187,6 +187,7 @@ allOf:
>              enum:
>                - qcom,adreno-610.0
>                - qcom,adreno-619.1
> +              - qcom,adreno-612.0
>      then:
>        properties:
>          clocks:
> @@ -195,18 +196,21 @@ allOf:
>  
>          clock-names:
>            items:
> -            - const: core
> -              description: GPU Core clock
> -            - const: iface
> -              description: GPU Interface clock
> -            - const: mem_iface
> -              description: GPU Memory Interface clock
> -            - const: alt_mem_iface
> -              description: GPU Alternative Memory Interface clock
> -            - const: gmu
> -              description: CX GMU clock
> -            - const: xo
> -              description: GPUCC clocksource clock
> +            anyOf:
> +              - const: core
> +                description: GPU Core clock
> +              - const: iface
> +                description: GPU Interface clock
> +              - const: mem_iface
> +                description: GPU Memory Interface clock
> +              - const: alt_mem_iface
> +                description: GPU Alternative Memory Interface clock
> +              - const: gmu
> +                description: CX GMU clock
> +              - const: xo
> +                description: GPUCC clocksource clock
> +              - const: smmu_vote
> +                description: GPUCC clocksource clock

Forgot to update the description. will fix.

-Akhil

>  
>          reg-names:
>            minItems: 1
>
Akhil P Oommen Nov. 26, 2024, 3:24 p.m. UTC | #3
On 11/26/2024 7:42 PM, Krzysztof Kozlowski wrote:
> On 26/11/2024 15:06, Akhil P Oommen wrote:
>> A612 GPU requires an additional smmu_vote clock. Update the bindings to
>> reflect this.
>>
>> Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
>> ---
>>  .../devicetree/bindings/display/msm/gpu.yaml       | 28 ++++++++++++----------
>>  1 file changed, 16 insertions(+), 12 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
>> index 6ddc72fd85b04537ea270754a897b4e7eb269641..201150d3151b55c26c95832d36f4e02f66060a25 100644
>> --- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
>> +++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
>> @@ -187,6 +187,7 @@ allOf:
>>              enum:
>>                - qcom,adreno-610.0
>>                - qcom,adreno-619.1
>> +              - qcom,adreno-612.0
> 
> Keep things ordered.

Ack.

> 
>>      then:
>>        properties:
>>          clocks:
>> @@ -195,18 +196,21 @@ allOf:
>>  
>>          clock-names:
>>            items:
>> -            - const: core
>> -              description: GPU Core clock
>> -            - const: iface
>> -              description: GPU Interface clock
>> -            - const: mem_iface
>> -              description: GPU Memory Interface clock
>> -            - const: alt_mem_iface
>> -              description: GPU Alternative Memory Interface clock
>> -            - const: gmu
>> -              description: CX GMU clock
>> -            - const: xo
>> -              description: GPUCC clocksource clock
>> +            anyOf:
> 
> No, this makes everything total mess. Why xo now is allowed to be first
> clock?
> 
> Drop and explain in commit msg why other devices now get smmu clock.

I thought it was okay to make this list a bit flexible. Btw, the other
existing clock-names list for a5x and older gpus uses "anyOf".

I suppose the suggestion is to add a separate clock-names list for A612
with strict ordering. Is that correct?

-Akhil

> 
> BTW, I am pretty sure this breaks existing platforms.
> 
> Best regards,
> Krzysztof
Krzysztof Kozlowski Nov. 26, 2024, 3:57 p.m. UTC | #4
On 26/11/2024 16:24, Akhil P Oommen wrote:
>> No, this makes everything total mess. Why xo now is allowed to be first
>> clock?
>>
>> Drop and explain in commit msg why other devices now get smmu clock.
> 
> I thought it was okay to make this list a bit flexible. Btw, the other
> existing clock-names list for a5x and older gpus uses "anyOf".
> 
> I suppose the suggestion is to add a separate clock-names list for A612
> with strict ordering. Is that correct?

Yes


Best regards,
Krzysztof
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/msm/gpu.yaml b/Documentation/devicetree/bindings/display/msm/gpu.yaml
index 6ddc72fd85b04537ea270754a897b4e7eb269641..201150d3151b55c26c95832d36f4e02f66060a25 100644
--- a/Documentation/devicetree/bindings/display/msm/gpu.yaml
+++ b/Documentation/devicetree/bindings/display/msm/gpu.yaml
@@ -187,6 +187,7 @@  allOf:
             enum:
               - qcom,adreno-610.0
               - qcom,adreno-619.1
+              - qcom,adreno-612.0
     then:
       properties:
         clocks:
@@ -195,18 +196,21 @@  allOf:
 
         clock-names:
           items:
-            - const: core
-              description: GPU Core clock
-            - const: iface
-              description: GPU Interface clock
-            - const: mem_iface
-              description: GPU Memory Interface clock
-            - const: alt_mem_iface
-              description: GPU Alternative Memory Interface clock
-            - const: gmu
-              description: CX GMU clock
-            - const: xo
-              description: GPUCC clocksource clock
+            anyOf:
+              - const: core
+                description: GPU Core clock
+              - const: iface
+                description: GPU Interface clock
+              - const: mem_iface
+                description: GPU Memory Interface clock
+              - const: alt_mem_iface
+                description: GPU Alternative Memory Interface clock
+              - const: gmu
+                description: CX GMU clock
+              - const: xo
+                description: GPUCC clocksource clock
+              - const: smmu_vote
+                description: GPUCC clocksource clock
 
         reg-names:
           minItems: 1