linux-kernel - Re: [PATCH v2 06/11] dt-bindings: input: qcom,pm8921-pwrkey: convert to dt-schema

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Date:   Tue, 4 Oct 2022 10:59:43 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Neil Armstrong <neil.armstrong@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Satya Priya <quic_c_skakit@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Rob Herring <robh+dt@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Lee Jones <lee@...nel.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Alessandro Zummo <a.zummo@...ertech.it>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-input@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-rtc@...r.kernel.org
Subject: Re: [PATCH v2 06/11] dt-bindings: input: qcom,pm8921-pwrkey: convert
 to dt-schema

On 04/10/2022 10:08, Neil Armstrong wrote:
> Convert input/qcom,pm8xxx-pwrkey.txt to YAML, and take in account that
> the PM8921 pwrkey compatible is used as fallback for the PM8018 pwrkey.
> 
> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
> 

You miss diffstat... but I guess it's result of b4?

> diff --git a/Documentation/devicetree/bindings/input/qcom,pm8921-pwrkey.yaml b/Documentation/devicetree/bindings/input/qcom,pm8921-pwrkey.yaml
> new file mode 100644
> index 000000000000..ae38c4ef4932
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/qcom,pm8921-pwrkey.yaml
> @@ -0,0 +1,77 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/qcom,pm8921-pwrkey.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Qualcomm PM8921 PMIC Power Key
> +
> +maintainers:
> +  - Andy Gross <agross@...nel.org>
> +  - Bjorn Andersson <andersson@...nel.org>

Keep only Bjorn. Andy did not review much for some time.

> +
> +allOf:
> +  - $ref: input.yaml#
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - qcom,pm8921-pwrkey
> +          - qcom,pm8058-pwrkey
> +      - items:
> +          - enum:
> +              - qcom,pm8018-pwrkey
> +          - const: qcom,pm8921-pwrkey
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 2
> +    description: |
> +          The first interrupt specifies the key release interrupt
> +          and the second interrupt specifies the key press interrupt.

In such case better to drop maxItems and description and write it:

items:
  - description: key release interrupt
  - description: key press interrupt

(maybe even the "interrupt" word could be skipped...)

> +
> +  debounce:
> +    description: |
> +          Time in microseconds that key must be pressed or
> +          released for state change interrupt to trigger.
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +
> +  pull-up:
> +    description: |
> +           Presence of this property indicates that the KPDPWR_N
> +           pin should be configured for pull up.
> +    $ref: /schemas/types.yaml#/definitions/flag
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +   #include <dt-bindings/interrupt-controller/irq.h>
> +   ssbi {
> +   #address-cells = <1>;
> +   #size-cells = <0>;

Messed indentation.
> +
> +     pmic@0 {
> +       reg = <0x0>;
> +       #address-cells = <1>;
> +       #size-cells = <0>;
> +
> +       pwrkey@1c {
> +          compatible = "qcom,pm8921-pwrkey";

Messed up indentation. For entire DTS example keep 2 or 4 spaces.

> +          reg = <0x1c>;
> +          interrupt-parent = <&pmicint>;
> +          interrupts = <50 1>, <51 1>;

Use defines for interrupt flags.

> +          debounce = <15625>;
> +          pull-up;
> +       };
> +     };
> +   };

Best regards,
Krzysztof