Re: [PATCH V13 3/4] dt-bindings: mfd: qcom,tcsr: Add simple-mfd support for IPQ6018

From: Krzysztof Kozlowski
Date: Wed Oct 04 2023 - 05:20:17 EST


On 04/10/2023 11:04, Devi Priya wrote:
> Update the binding to include pwm as the child node to TCSR block and
> add simple-mfd support for IPQ6018.
>
> Signed-off-by: Devi Priya <quic_devipriy@xxxxxxxxxxx>
> ---

Thank you for your patch. There is something to discuss/improve.


> reg:
> maxItems: 1
>
> + ranges: true
> +
> + "#address-cells":
> + const: 1
> +
> + "#size-cells":
> + const: 1
> +
> +patternProperties:
> + "pwm@[a-f0-9]+$":

type: object

> + $ref: ../pwm/qcom,ipq6018-pwm.yaml

This should be full patch, so:
$ref: /schemas/pwm/qcom.......


> +
> required:
> - compatible
> - reg

After required (but before additionalProperties), please add:

allOf:if:then: for other compatible (so use keyword "not:") which will
disallow pwm for them. Disallowing is via:

patternProperties:
"pwm@[a-f0-9]+$": false

See Documentation/devicetree/bindings/interconnect/qcom,rpm.yaml
around line 240. We need something similar.


> @@ -57,8 +74,29 @@ required:
> additionalProperties: false
>
> examples:
> + # Example 1 - Syscon node found on MSM8960
> - |
> syscon@1a400000 {
> compatible = "qcom,tcsr-msm8960", "syscon";
> reg = <0x1a400000 0x100>;
> };
> + # Example 2 - Syscon node found on IPQ6018
> + - |
> + #include <dt-bindings/clock/qcom,gcc-ipq6018.h>
> +
> + syscon@1937000 {
> + compatible = "qcom,tcsr-ipq6018", "syscon", "simple-mfd";
> + reg = <0x01937000 0x21000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x1937000 0x21000>;

Please put ranges just after reg.

> +
> + pwm: pwm@a010 {
> + compatible = "qcom,ipq6018-pwm";
> + reg = <0xa010 0x20>;

Best regards,
Krzysztof