diff mbox series

[v8,02/11] dt-bindings: dma: Increase iommu maxItems for BAM DMA

Message ID 20230526192210.3146896-3-bhupesh.sharma@linaro.org
State New
Headers
Series arm64: qcom: Enable Crypto Engine for a few Qualcomm SoCs |

Commit Message

Bhupesh Sharma May 26, 2023, 7:22 p.m. UTC 
  Since SM8450 BAM DMA engine supports five iommu entries,
increase the maxItems in the iommu property section, without
which 'dtbs_check' reports the following error:

  arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara-pdx224.dtb:
    dma-controller@1dc4000: iommus: is too long

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Tested-by: Anders Roxell <anders.roxell@linaro.org>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
---
 Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Krzysztof Kozlowski June 18, 2023, 8:36 a.m. UTC | #1 
On 26/05/2023 21:22, Bhupesh Sharma wrote:
> Since SM8450 BAM DMA engine supports five iommu entries,
> increase the maxItems in the iommu property section, without
> which 'dtbs_check' reports the following error:
> 
>   arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara-pdx224.dtb:
>     dma-controller@1dc4000: iommus: is too long
> 
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Tested-by: Anders Roxell <anders.roxell@linaro.org>
> Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@linaro.org>
> ---
>  Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
> index c663b6102f50..5636d38f712a 100644
> --- a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
> +++ b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
> @@ -44,7 +44,7 @@ properties:
>  
>    iommus:
>      minItems: 1
> -    maxItems: 4
> +    maxItems: 5

This needs at least 6 (sm8250).

Best regards,
Krzysztof
Krzysztof Kozlowski June 18, 2023, 8:39 a.m. UTC | #2 
On 26/05/2023 21:22, Bhupesh Sharma wrote:
> Since SM8450 BAM DMA engine supports five iommu entries,
> increase the maxItems in the iommu property section, without
> which 'dtbs_check' reports the following error:
> 
>   arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara-pdx224.dtb:
>     dma-controller@1dc4000: iommus: is too long

Also, please drop error message, because it is not true. The files do
not have such device node, so you cannot have such warning.

Please rewrite the commit msg to explain that certain devices, e.g.
sm8250, use more iommus.

Best regards,
Krzysztof
Bhupesh Sharma June 30, 2023, 8:35 a.m. UTC | #3 
Hi Krzysztof,

On 6/18/23 2:09 PM, Krzysztof Kozlowski wrote:
> On 26/05/2023 21:22, Bhupesh Sharma wrote:
>> Since SM8450 BAM DMA engine supports five iommu entries,
>> increase the maxItems in the iommu property section, without
>> which 'dtbs_check' reports the following error:
>>
>>    arch/arm64/boot/dts/qcom/sm8450-sony-xperia-nagara-pdx224.dtb:
>>      dma-controller@1dc4000: iommus: is too long
> 
> Also, please drop error message, because it is not true. The files do
> not have such device node, so you cannot have such warning.
> 
> Please rewrite the commit msg to explain that certain devices, e.g.
> sm8250, use more iommus.

I have sent a v9 (which can be seen here: 
<https://lore.kernel.org/linux-arm-msm/20230630082230.2264698-1-bhupesh.sharma@linaro.org/>), 
which addresses your review comments shared on v8.

Please help review.

Thanks,
Bhupesh
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
index c663b6102f50..5636d38f712a 100644
--- a/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
+++ b/Documentation/devicetree/bindings/dma/qcom,bam-dma.yaml
@@ -44,7 +44,7 @@  properties:
 
   iommus:
     minItems: 1
-    maxItems: 4
+    maxItems: 5
 
   num-channels:
     $ref: /schemas/types.yaml#/definitions/uint32