linux-kernel - Re: [PATCH v2 3/8] ASoC: dt-bindings: wcd937x-sdw: add bindings for wcd937x-sdw

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Message-ID: <ced05784-79f8-2ec5-59ef-7fcbb3ac1988@quicinc.com>
Date: Mon, 22 Apr 2024 16:07:56 +0530
From: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Srinivas Kandagatla
	<srinivas.kandagatla@...aro.org>,
        Banajit Goswami <bgoswami@...cinc.com>,
        Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
        "Rob
 Herring" <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Conor
 Dooley" <conor+dt@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai
	<tiwai@...e.com>
CC: <alsa-devel@...a-project.org>, <linux-arm-msm@...r.kernel.org>,
        <linux-sound@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_rohkumar@...cinc.com>,
        <quic_pkumpatl@...cinc.com>
Subject: Re: [PATCH v2 3/8] ASoC: dt-bindings: wcd937x-sdw: add bindings for
 wcd937x-sdw

On 4/17/2024 9:26 PM, Krzysztof Kozlowski wrote:
> On 16/04/2024 08:35, Mohammad Rafi Shaik wrote:
>> From: Prasad Kumpatla <quic_pkumpatl@...cinc.com>
>>
>> Qualcomm WCD9370/WCD9375 Codec is a standalone Hi-Fi audio codec IC
>> connected over SoundWire. This device has two SoundWire devices RX and
>> TX respectively.
>> This binding is for those slave devices on WCD9370/WCD9375.
>>
>> Co-developed-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
>> Signed-off-by: Mohammad Rafi Shaik <quic_mohs@...cinc.com>
>> Signed-off-by: Prasad Kumpatla <quic_pkumpatl@...cinc.com>
>> ---
>>   .../bindings/sound/qcom,wcd937x-sdw.yaml      | 71 +++++++++++++++++++
>>   1 file changed, 71 insertions(+)
>>   create mode 100644 Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml
>>
>> diff --git a/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml
>> new file mode 100644
>> index 000000000000..2b7358e266ba
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/sound/qcom,wcd937x-sdw.yaml
>> @@ -0,0 +1,71 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/sound/qcom,wcd937x-sdw.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Qualcomm SoundWire Slave devices on WCD9370
>> +
>> +maintainers:
>> +  - Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
>> +
>> +description: |
> 
> Do not need '|' unless you need to preserve formatting.

ACK

will remove '|' in next version patch set.

> 
>> +  Qualcomm WCD9370 Codec is a standalone Hi-Fi audio codec IC.
>> +  It has RX and TX Soundwire slave devices. This bindings is for the
>> +  slave devices.
>> +
>> +properties:
>> +  compatible:
>> +    const: sdw20217010a00
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  qcom,tx-port-mapping:
>> +    description: |
>> +      Specifies static port mapping between slave and master tx ports.
>> +      In the order of slave port index.
> 
> Use inclusive terminology. Describe what is here - what is the index?
> What is the value?

ACK

> 
>> +    $ref: /schemas/types.yaml#/definitions/uint32-array
>> +    minItems: 4
>> +    maxItems: 4
> 
> Add constraints on values. You have maximum 15 TX ports, don't you?
> 
>> +
>> +  qcom,rx-port-mapping:
>> +    description: |
>> +      Specifies static port mapping between slave and master rx ports.
>> +      In the order of slave port index.
>> +    $ref: /schemas/types.yaml#/definitions/uint32-array
>> +    minItems: 5
>> +    maxItems: 5
>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - qcom,port-mapping
> 
> Test your binding. There is no need to engage reviewers for reviewing
> simple mistakes which *tools* can point. Respect reviewers time and use
> the tools first.
> 
> You need oneOf: with required for TX and RX... or just unify the
> properties. Why do you need two?
> 
ACK,

will fix the binding errors.
> 
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    soundwire@...0000 {
> Drop unit address.


actually took the reference from wcd938x.

https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/tree/Documentation/devicetree/bindings/sound/qcom,wcd938x-sdw.yaml#n48


> 
>> +        #address-cells = <2>;
>> +        #size-cells = <0>;
>> +        reg = <0x03210000 0x2000>;
> 
> Drop, not relevant and not placed correctly (see DTS coding style).

>> +        wcd937x_rx: codec@0,4 {
> 
> Drop label, not used.
> 
>> +            compatible = "sdw20217010a00";
>> +            reg  = <0 4>;
>> +            qcom,rx-port-mapping = <1 2 3 4 5>;
>> +        };
>> +    };
>> +
>> +    soundwire@...0000 {
> 
> Drop this example, it's almost identical.
> 
> Best regards,
> Krzysztof
> 

Thanks & Regards,
Rafi