linux-kernel - Re: [PATCH V7 1/3] dt-bindings: mfd: pm8008: Add gpio-ranges and spmi-gpio compatible

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Date:   Sun, 25 Jul 2021 13:17:40 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     satya priya <skakit@...eaurora.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Das Srinagesh <gurus@...eaurora.org>, kgunda@...eaurora.org,
        linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH V7 1/3] dt-bindings: mfd: pm8008: Add gpio-ranges and
 spmi-gpio compatible

On Fri 23 Jul 03:31 CDT 2021, satya priya wrote:

> Add gpio-ranges and "qcom,spmi-gpio" compatible to match with the
> parent qcom,pmic-gpio.yaml binding.
> 
> Signed-off-by: satya priya <skakit@...eaurora.org>

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

But it doesn't capture the full binding of qcom,pm8008-gpio - which is
properly described by the end of this series. As such I expect that any
non-trivial usage of the pm8008-gpio in a dts will fail dts validation.

I still think this patch can be merged, but I don't think we're done
expressing the PMIC bindings.

Regards,
Bjorn

> ---
> Changes in V7:
>  - This is newly added in V7 to resolve below error.
>  dtschema/dtc warnings/errors:
>  /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mfd/qcom,pm8008.example.dt.yaml: gpio@...0: compatible: ['qcom,pm8008-gpio'] is too short
> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
>  /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/mfd/qcom,pm8008.example.dt.yaml: gpio@...0: 'gpio-ranges' is a required property
> 	From schema: /builds/robherring/linux-dt-review/Documentation/devicetree/bindings/pinctrl/qcom,pmic-gpio.yaml
> 
>  Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml | 13 ++++++++++---
>  1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml b/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml
> index 7799368..ec3138c 100644
> --- a/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml
> +++ b/Documentation/devicetree/bindings/mfd/qcom,pm8008.yaml
> @@ -53,7 +53,9 @@ patternProperties:
>  
>      properties:
>        compatible:
> -        const: qcom,pm8008-gpio
> +        items:
> +          - const: qcom,pm8008-gpio
> +          - const: qcom,spmi-gpio
>  
>        reg:
>          description: Peripheral address of one of the two GPIO peripherals.
> @@ -61,6 +63,9 @@ patternProperties:
>  
>        gpio-controller: true
>  
> +      gpio-ranges:
> +        maxItems: 1
> +
>        interrupt-controller: true
>  
>        "#interrupt-cells":
> @@ -75,6 +80,7 @@ patternProperties:
>        - gpio-controller
>        - interrupt-controller
>        - "#gpio-cells"
> +      - gpio-ranges
>        - "#interrupt-cells"
>  
>      additionalProperties: false
> @@ -107,10 +113,11 @@ examples:
>          interrupt-parent = <&tlmm>;
>          interrupts = <32 IRQ_TYPE_EDGE_RISING>;
>  
> -        gpio@...0 {
> -          compatible = "qcom,pm8008-gpio";
> +        pm8008_gpios: gpio@...0 {
> +          compatible = "qcom,pm8008-gpio", "qcom,spmi-gpio";
>            reg = <0xc000>;
>            gpio-controller;
> +          gpio-ranges = <&pm8008_gpios 0 0 2>;
>            #gpio-cells = <2>;
>            interrupt-controller;
>            #interrupt-cells = <2>;
> -- 
> QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member 
> of Code Aurora Forum, hosted by The Linux Foundation
>