linux-kernel - Re: [PATCH v4] ASoC: dt-bindings: davinci-mcasp: convert McASP bindings to yaml schema

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Message-ID: <a3a80b4a-6555-9bae-2d39-013f080042eb@ti.com>
Date:   Tue, 14 Dec 2021 10:27:58 +0530
From:   Jayesh Choudhary <j-choudhary@...com>
To:     Rob Herring <robh@...nel.org>
CC:     <lgirdwood@...il.com>, <broonie@...nel.org>,
        <peter.ujfalusi@...il.com>, <alsa-devel@...a-project.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4] ASoC: dt-bindings: davinci-mcasp: convert McASP
 bindings to yaml schema



On 11/12/21 2:54 am, Rob Herring wrote:
> On Fri, Dec 03, 2021 at 05:32:43PM +0530, Jayesh Choudhary wrote:
>> Convert the bindings for McASP controllers for TI SOCs from txt
>> to YAML schema.
>>
>> Adds additional properties 'clocks', 'clock-names', 'power-domains',
>> '#sound-dai-cells' and 'port' which were missing from txt file.
>> Removes properties 'sram-size-playback' and 'sram-size-capture'
>> since they are not used.
>> Adds 'dmas' and 'dma-names' in the example which were missing from
>> the txt file.
>> Changes 'interrupts' and 'interrupt-names' from optional to
>> required properties.
>> Changes 'op-mode', 'serial-dir' and 'tdm-slots' to optional properties
>> as they are not needed if the McASP is used only as GPIO.
>>
>> Adds the yaml file in the 'MAINTAINERS' under the heading 'TEXAS
>> INSTRUMENTS ASoC DRIVERS'
>>
>> Signed-off-by: Jayesh Choudhary <j-choudhary@...com>
>> ---

>> +
>> +  tdm-slots:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description: number of channels over one serializer
>> +    maxItems: 1
> 
> It's a uint32, so there's always 1 item. Drop.
> 

Will drop it from tdm-slots, tx-num-evt, rx-num-evt and auxclk-fs-ratio
since they are also uint32.

> No constraints? 0-2^32 is valid?

Yes it should be between 2 to 32 as pointed out by Peter.
Will add that.

> 
>> +
>> +
>> +  tx-num-evt:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description: configures WFIFO threshold
>> +    maxItems: 1
>> +
>> +  rx-num-evt:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description: configures RFIFO threshold
>> +    maxItems: 1
>> +
>> +
>> +  auxclk-fs-ratio:
>> +    $ref: /schemas/types.yaml#/definitions/uint32
>> +    description: ratio of AUCLK and FS rate if applicable
>> +    maxItems: 1
>> +

>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    mcasp0: mcasp0@...0000 {
> 
> Drop unused labels.

Yeah okay.

> 
>> +      compatible = "ti,da830-mcasp-audio";
>> +      reg = <0x100000 0x3000>;
>> +      reg-names = "mpu";
>> +      interrupts = <82>, <83>;
>> +      interrupt-names = "tx", "rx";
>> +      op-mode = <0>;		/* MCASP_IIS_MODE */
>> +      tdm-slots = <2>;
>> +      dmas = <&main_udmap 0xc400>, <&main_udmap 0x4400>;
>> +      dma-names = "tx", "rx";
>> +      serial-dir = <
>> +          0 0 0 0	/* 0: INACTIVE, 1: TX, 2: RX */
>> +          0 0 0 0
>> +          0 0 0 1
>> +          2 0 0 0 >;
>> +      tx-num-evt = <1>;
>> +      rx-num-evt = <1>;
>> +    };
>> diff --git a/MAINTAINERS b/MAINTAINERS
>> index 00ad0cb5cb05..3fdf1e23f7d7 100644
>> --- a/MAINTAINERS
>> +++ b/MAINTAINERS
>> @@ -18855,6 +18855,7 @@ TEXAS INSTRUMENTS ASoC DRIVERS
>>   M:	Peter Ujfalusi <peter.ujfalusi@...il.com>
>>   L:	alsa-devel@...a-project.org (moderated for non-subscribers)
>>   S:	Maintained
>> +F:	Documentation/devicetree/bindings/sound/davinci-mcasp-audio.yaml
>>   F:	sound/soc/ti/
>>   
>>   TEXAS INSTRUMENTS' DAC7612 DAC DRIVER
>> -- 
>> 2.17.1
>>
>>