linux-kernel - Re: [PATCH v6 1/3] arm64: dts: qcom: sc7280: Add nodes for va tx and rx macros and external codecs

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Date:   Tue, 12 Apr 2022 18:30:59 +0530
From:   Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
To:     Matthias Kaehlcke <mka@...omium.org>
CC:     <agross@...nel.org>, <bjorn.andersson@...aro.org>,
        <robh+dt@...nel.org>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <srinivas.kandagatla@...aro.org>, <dianders@...omium.org>,
        <swboyd@...omium.org>, <judyhsiao@...omium.org>,
        Venkata Prasad Potturu <quic_potturu@...cinc.com>,
        <quic_rohkumar@...cinc.com>
Subject: Re: [PATCH v6 1/3] arm64: dts: qcom: sc7280: Add nodes for va tx and
 rx macros and external codecs


On 4/12/2022 1:23 AM, Matthias Kaehlcke wrote:
Thanks for your time Matthias!!!
> On Mon, Apr 11, 2022 at 07:32:33PM +0530, Srinivasa Rao Mandadapu wrote:
>> On 4/6/2022 3:05 AM, Matthias Kaehlcke wrote:
>> Thanks for your time Matthias!!!
>>> On Tue, Apr 05, 2022 at 04:43:38PM +0530, Srinivasa Rao Mandadapu wrote:
>>>> SC7280 has VA, TX and RX macros with SoundWire Controllers to attach with
>>>> codecs like WCD938x, max98360a using soundwire masters and i2s bus.
>>>> Add these nodes for sc7280 based platforms audio use case.
>>>> Add tlmm gpio property in wcd938x node for switching CTIA/OMTP Headset.
>>>>
>>>> Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@...cinc.com>
>>>> Co-developed-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>>>> Signed-off-by: Venkata Prasad Potturu <quic_potturu@...cinc.com>
>>>> ---
>>> A change log would be helpful for reviewers
>> Change log added in cover letter.
>  From my perspective as a reviewer I find it more practical to have a
> change log per patch.
Okay. will do accordingly from next time.
>
>>>> diff --git a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>>>> index de646d9..c6a04c3 100644
>>>> --- a/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>>>> +++ b/arch/arm64/boot/dts/qcom/sc7280-herobrine.dtsi
>>>> @@ -20,6 +20,14 @@
>>>>    #include "sc7280-chrome-common.dtsi"
>>>>    / {
>>>> +	max98360a: audio-codec-0 {
>>>> +		compatible = "maxim,max98360a";
>>>> +		pinctrl-names = "default";
>>>> +		pinctrl-0 = <&amp_en>;
>>>> +		sdmode-gpios = <&tlmm 63 GPIO_ACTIVE_HIGH>;
>>>> +		#sound-dai-cells = <0>;
>>>> +	};
>>>> +
>>> This node shouldn't be at top but with the other device nodes, in
>>> alphabetical order, i.e. before 'pwmleds'.
>> Actually we are sorting as per node name. Hence kept it here. As per
>> previous reviewer comments, sorted accordingly.
>>
>> Please suggest better approach.
> True, I forgot the node names are used for sorting, not the labels.
Okay.
>
>>>> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>>>> index db74fc3..78ec84c 100644
>>>> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
>>>> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>>>> @@ -822,6 +822,127 @@
>>>>    			#power-domain-cells = <1>;
>>>>    		};
>>>> +		rxmacro: codec@...0000 {
>>> These node are not at the correct position. They should be sorted by
>>> address and hence be inserted between 'lpasscc@...0000' and
>>> 'interconnect@...0000'.
>> Actually we are sorting as per node(codec) name. Hence kept it here. As per
>> previous reviewer comments, sorted accordingly.
> Could you provide a pointer to those comments?
Sorry. it seems we misunderstood.
>
> My understanding is that we are sorting by node name when nodes don't have
> addresses or for overrides in board files/snippets, however the nodes under
> 'soc@0' are sorted by address.
>
> Another nit: 'rx_macro, tx_macro, va_macro' instead of the labels without
> underscore? Not really important, but maybe slightly more readable and
> would match the 'spelling' of the compatible strings.
Okay. Will change accordingly!!!