linux-kernel - Re: [PATCH V12 2/3] dt-bindings: pwm: add IPQ6018 binding

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Date:   Fri, 29 Sep 2023 13:25:09 +0530
From:   Devi Priya <quic_devipriy@...cinc.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        <thierry.reding@...il.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <ndesaulniers@...gle.com>,
        <trix@...hat.com>, <baruch@...s.co.il>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <llvm@...ts.linux.dev>
CC:     <linux-pwm@...r.kernel.org>, <u.kleine-koenig@...gutronix.de>,
        <nathan@...nel.org>
Subject: Re: [PATCH V12 2/3] dt-bindings: pwm: add IPQ6018 binding



On 9/25/2023 12:41 PM, Krzysztof Kozlowski wrote:
> On 25/09/2023 08:59, Devi Priya wrote:
>> DT binding for the PWM block in Qualcomm IPQ6018 SoC.
>>
>> Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
>> Co-developed-by: Baruch Siach <baruch.siach@...lu.com>
>> Signed-off-by: Baruch Siach <baruch.siach@...lu.com>
>> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
> 
> ...
> 
>> diff --git a/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
>> new file mode 100644
>> index 000000000000..857086ad539e
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/pwm/ipq-pwm.yaml
> 
> Filename matching compatible, so qcom,ipq6018-pwm.yaml
okay
> 
>> @@ -0,0 +1,53 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/pwm/ipq-pwm.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm IPQ6018 PWM controller
>> +
>> +maintainers:
>> +  - Baruch Siach <baruch@...s.co.il>
>> +
>> +properties:
>> +  "#pwm-cells":
>> +    const: 2
>> +
>> +  compatible:
>> +    const: qcom,ipq6018-pwm
> 
> compatible is always the first property.
okay
> 
>> +
>> +  reg:
>> +    description: Offset of PWM register in the TCSR block.
>> +    maxItems: 1
>> +
>> +  clocks:
>> +    maxItems: 1
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - "#pwm-cells"
> 
> And this order must be the same as in properties.
okay
> 
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/qcom,gcc-ipq6018.h>
>> +
>> +    syscon@...7000 {
>> +        compatible = "qcom,tcsr-ipq6018", "syscon", "simple-mfd";
>> +        reg = <0x01937000 0x21000>;
>> +        #address-cells = <1>;
>> +        #size-cells = <1>;
>> +        ranges = <0 0x1937000 0x21000>;
> 
> Drop this node, not related. The parent binding could have full example,
> on the other hand. Additionally, I have doubts that you really tested
> the parent binding.
Sure, will drop the syscon node

Thanks,
Devi Priya
> 
>> +
>> +        pwm: pwm@...0 {
>> +            compatible = "qcom,ipq6018-pwm";
> 
> Best regards,
> Krzysztof
>