[v20] soc: qcom: dcc: Add driver support for Data Capture and Compare unit(DCC)

[PATCH V20 1/7] dt-bindings: Added the yaml bindings for DCC

Posted by Souradeep Chowdhury 2 years, 8 months ago

Documentation for Data Capture and Compare(DCC) device tree bindings
in yaml format.

Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
 .../devicetree/bindings/soc/qcom/qcom,dcc.yaml     | 44 ++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml

diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
new file mode 100644
index 0000000..ac3b51b
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/soc/qcom/qcom,dcc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Data Capture and Compare
+
+maintainers:
+  - Souradeep Chowdhury <quic_schowdhu@quicinc.com>
+
+description: |
+    DCC (Data Capture and Compare) is a DMA engine which is used to save
+    configuration data or system memory contents during catastrophic failure
+    or SW trigger. DCC is used to capture and store data for debugging purpose
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - qcom,sm8150-dcc
+          - qcom,sc7280-dcc
+          - qcom,sc7180-dcc
+          - qcom,sdm845-dcc
+      - const: qcom,dcc
+
+  reg:
+    items:
+      - description: DCC base
+      - description: DCC RAM base
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    dma@10a2000{
+        compatible = "qcom,sm8150-dcc","qcom,dcc";
+        reg = <0x010a2000 0x1000>,
+              <0x010ad000 0x2000>;
+    };
-- 
2.7.4

Re: [PATCH V20 1/7] dt-bindings: Added the yaml bindings for DCC

Posted by Krzysztof Kozlowski 2 years, 8 months ago

On 26/12/2022 17:52, Souradeep Chowdhury wrote:
> Documentation for Data Capture and Compare(DCC) device tree bindings
> in yaml format.

Use subject prefixes matching the subsystem (which you can get for
example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
your patch is touching).

Subject: drop second, redundant "bindings". Drop "yaml" (also unrelated).

Use proper imperative mode.
https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95

> 
> Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Reviewed-by: Bjorn Andersson <andersson@kernel.org>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
>  .../devicetree/bindings/soc/qcom/qcom,dcc.yaml     | 44 ++++++++++++++++++++++
>  1 file changed, 44 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
> new file mode 100644
> index 0000000..ac3b51b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/soc/qcom/qcom,dcc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Data Capture and Compare
> +
> +maintainers:
> +  - Souradeep Chowdhury <quic_schowdhu@quicinc.com>
> +
> +description: |
> +    DCC (Data Capture and Compare) is a DMA engine which is used to save
> +    configuration data or system memory contents during catastrophic failure
> +    or SW trigger. DCC is used to capture and store data for debugging purpose
> +
> +properties:
> +  compatible:
> +    items:
> +      - enum:
> +          - qcom,sm8150-dcc
> +          - qcom,sc7280-dcc
> +          - qcom,sc7180-dcc
> +          - qcom,sdm845-dcc
> +      - const: qcom,dcc
> +
> +  reg:
> +    items:
> +      - description: DCC base
> +      - description: DCC RAM base
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    dma@10a2000{
> +        compatible = "qcom,sm8150-dcc","qcom,dcc";

Missing space between compatibles.

Best regards,
Krzysztof

Re: [PATCH V20 1/7] dt-bindings: Added the yaml bindings for DCC

Posted by Souradeep Chowdhury 2 years, 8 months ago


On 12/27/2022 1:51 PM, Krzysztof Kozlowski wrote:
> On 26/12/2022 17:52, Souradeep Chowdhury wrote:
>> Documentation for Data Capture and Compare(DCC) device tree bindings
>> in yaml format.
> 
> Use subject prefixes matching the subsystem (which you can get for
> example with `git log --oneline -- DIRECTORY_OR_FILE` on the directory
> your patch is touching).
> 
> Subject: drop second, redundant "bindings". Drop "yaml" (also unrelated).
> 
> Use proper imperative mode.
> https://elixir.bootlin.com/linux/v5.17.1/source/Documentation/process/submitting-patches.rst#L95

Ack

> 
>>
>> Signed-off-by: Souradeep Chowdhury <quic_schowdhu@quicinc.com>
>> Reviewed-by: Rob Herring <robh@kernel.org>
>> Reviewed-by: Bjorn Andersson <andersson@kernel.org>
>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> ---
>>   .../devicetree/bindings/soc/qcom/qcom,dcc.yaml     | 44 ++++++++++++++++++++++
>>   1 file changed, 44 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml b/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
>> new file mode 100644
>> index 0000000..ac3b51b
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/soc/qcom/qcom,dcc.yaml
>> @@ -0,0 +1,44 @@
>> +# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/soc/qcom/qcom,dcc.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Data Capture and Compare
>> +
>> +maintainers:
>> +  - Souradeep Chowdhury <quic_schowdhu@quicinc.com>
>> +
>> +description: |
>> +    DCC (Data Capture and Compare) is a DMA engine which is used to save
>> +    configuration data or system memory contents during catastrophic failure
>> +    or SW trigger. DCC is used to capture and store data for debugging purpose
>> +
>> +properties:
>> +  compatible:
>> +    items:
>> +      - enum:
>> +          - qcom,sm8150-dcc
>> +          - qcom,sc7280-dcc
>> +          - qcom,sc7180-dcc
>> +          - qcom,sdm845-dcc
>> +      - const: qcom,dcc
>> +
>> +  reg:
>> +    items:
>> +      - description: DCC base
>> +      - description: DCC RAM base
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    dma@10a2000{
>> +        compatible = "qcom,sm8150-dcc","qcom,dcc";
> 
> Missing space between compatibles.

Ack

> 
> Best regards,
> Krzysztof
>