[alsa-devel] [PATCH] ASoC: Add support for Maxim Integrated MAX98927 Amplifier

[Ryans Lee]

> -----Original Message-----
> From: Rob Herring [mailto:robh at kernel.org]
> Sent: Friday, March 24, 2017 8:26 AM
> To: Ryans Lee <RyanS.Lee at maximintegrated.com>
> Cc: lgirdwood at gmail.com; broonie at kernel.org; mark.rutland at arm.com; 
> perex at perex.cz; tiwai at suse.com; kuninori.morimoto.gx at renesas.com; 
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> Paul.Handrigan at cirrus.com; alsa-devel at alsa-project.org; 
> devicetree at vger.kernel.org; linux-kernel at vger.kernel.org; 
> dgreid at google.com
> Subject: Re: [PATCH] ASoC: Add support for Maxim Integrated MAX98927 
> Amplifier
>
> EXTERNAL EMAIL
>
>
>
> On Mon, Mar 20, 2017 at 09:40:23AM +0900, Ryan Lee wrote:
>> Signed-off-by: Ryan Lee <ryans.lee at maximintegrated.com>
>> ---
>> Resubmit the intial version of MAX98927 driver. Added all fixes into the initial patch.
>>
>>  .../devicetree/bindings/sound/max98927.txt         |   39 +
>>  sound/soc/codecs/Kconfig                           |    5 +
>>  sound/soc/codecs/Makefile                          |    2 +
>>  sound/soc/codecs/max98927.c                        | 1040 ++++++++++++++++++++
>>  sound/soc/codecs/max98927.h                        |  267 +++++
>>  5 files changed, 1353 insertions(+)
>>  create mode 100755
>> Documentation/devicetree/bindings/sound/max98927.txt
>>  mode change 100644 => 100755 sound/soc/codecs/Kconfig  mode change
>> 100644 => 100755 sound/soc/codecs/Makefile  create mode 100755 
>> sound/soc/codecs/max98927.c  create mode 100755 
>> sound/soc/codecs/max98927.h
>>
>> diff --git a/Documentation/devicetree/bindings/sound/max98927.txt
>> b/Documentation/devicetree/bindings/sound/max98927.txt
>> new file mode 100755
>> index 0000000..d610879
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/sound/max98927.txt
>> @@ -0,0 +1,39 @@
>> +max98927 audio CODEC
>> +
>> +This device supports I2C.
>
> Can we combine this and the other max9892x bindings. They all look similar.
They are not same but almost similar. I combined MAX98925, MAX98926 and MAX98927 bindings into MAX9892x.txt
Thank you for your feedback.
>
>> +
>> +Required properties:
>> +
>> +  - compatible : "maxim,max98927"
>> +
>> +  - maxim,vmon-slot-no : slot number used to send voltage 
>> + information
>
> While vendor prefix is preferred, so is using the same property names.
> Either use the existing names or deprecate the old ones in favor of these.
To use same property names, I kept existing names. Thanks.

>
>> +                   or in inteleave mode this will be used as
>> +                   interleave slot.
>> +                   This property can be set to values from 0 to 15 for slot 0 to 15.
>> +                   Default value is 0.
>> +
>> +  - maxim,imon-slot-no : slot number used to send current information
>> +                   This property can be set to values from 0 to 15 for slot 0 to 15.
>> +                   Default value is 0.
>> +
>> +  - maxim,interleave-mode : When using two MAX98927 in a system it is
>> +                   possible to create ADC data that that will
>> +                   overflow the frame size. Digital Audio Interleave
>> +                   mode provides a means to output VMON and IMON data
>> +                   from two devices on a single DOUT line when running
>> +                   smaller frames sizes such as 32 BCLKS per LRCLK or
>> +                   48 BCLKS per LRCLK.
>> +                   This property can be set to values from 0 to 1 for off and on.
>> +                   Default value is 0.
>> +
>> +  - reg : the I2C address of the device for I2C
>> +
>> +Example:
>> +
>> +codec: max98927 at 3a {
>> +   compatible = "maxim,max98927";
>> +   maxim,vmon-slot-no = <0>;
>> +   maxim,imon-slot-no = <1>;
>> +   maxim,interleave-mode = <0>;
>> +   reg = <0x3a>;
>> +};