Re: [PATCH v3 01/11] dt-bindings: arm: Add support for DSB element size

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Hi Suzuki,

在 3/24/2023 4:25 PM, Tao Zhang 写道:
Hi Suzuki,

在 3/23/2023 7:18 PM, Suzuki K Poulose 写道:
On 23/03/2023 06:03, Tao Zhang wrote:
Add property "qcom,dsb-elem-size" to support DSB(Discrete Single
Bit) element for TPDM. The associated aggregator will read this
size before it is enabled. DSB element size currently only
supports 32-bit and 64-bit.

Signed-off-by: Tao Zhang <quic_taozha@xxxxxxxxxxx>
---
  .../devicetree/bindings/arm/qcom,coresight-tpdm.yaml | 11 +++++++++++
  1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
index 5c08342..d9b6b613 100644
--- a/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
+++ b/Documentation/devicetree/bindings/arm/qcom,coresight-tpdm.yaml
@@ -44,6 +44,15 @@ properties:
      minItems: 1
      maxItems: 2


  +  qcom,dsb-element-size:
+    description:
+      Specifies the DSB(Discrete Single Bit) element size supported by
+      the monitor. The associated aggregator will read this size before it +      is enabled. DSB element size currently only supports 32-bit and 64-bit.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    minimum: 32
+    maximum: 64

Shouldn't this be something like oneOf ? It is not a range, but one of
those two specific values ?

Yes, "qcom,dsb-element-size" should be an optional option required in TPDM

devicetree. Other properties like "qcom,cmb-element-size", "qcom,tc-element-size"

and etc. will be added in a later patch series.

I will update this doc according to your advice in the next version of the patch.

Tao

Correct my misunderstanding in the mail above.

You are right, DSB element size should be 32-bit or 64-bit. I will update this in the next

patch series.


Tao


Suzuki


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