linux-kernel - Re: [PATCH] arm64: dts: meson: sm1-khadas-vim3l use one sound node configuration with VIM3

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Date:   Mon, 06 Sep 2021 11:18:36 +0200
From:   Jerome Brunet <jbrunet@...libre.com>
To:     Neil Armstrong <narmstrong@...libre.com>
Cc:     linux-arm-kernel@...ts.infradead.org,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        christianshewitt@...il.com, art@...das.com, nick@...das.com,
        gouwa@...das.com, Artem Lapkin <email2tema@...il.com>
Subject: Re: [PATCH] arm64: dts: meson: sm1-khadas-vim3l use one sound node
 configuration with VIM3


On Thu 02 Sep 2021 at 15:31, Neil Armstrong <narmstrong@...libre.com> wrote:

> Hi,
>
> On 12/08/2021 07:10, Artem Lapkin wrote:
>> Khadas VIM3L board sound configuration same as Khadas VIM3, its already
>> defined in meson-khadas-vim3.dtsi and no need overwrite it with different
>> card names and routing configurations.
>> 
>> Signed-off-by: Artem Lapkin <art@...das.com>
>> ---
>>  .../boot/dts/amlogic/meson-sm1-khadas-vim3l.dts     | 13 -------------
>>  1 file changed, 13 deletions(-)
>> 
>> diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts
>> index f2c098143..06de0b1ce 100644
>> --- a/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts
>> +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-khadas-vim3l.dts
>> @@ -32,19 +32,6 @@ vddcpu: regulator-vddcpu {
>>  		regulator-boot-on;
>>  		regulator-always-on;
>>  	};
>> -
>> -	sound {
>> -		model = "G12B-KHADAS-VIM3L";
>> -		audio-routing = "TDMOUT_A IN 0", "FRDDR_A OUT 0",
>> -				"TDMOUT_A IN 1", "FRDDR_B OUT 0",
>> -				"TDMOUT_A IN 2", "FRDDR_C OUT 0",
>> -				"TDM_A Playback", "TDMOUT_A OUT",
>> -				"TDMIN_A IN 0", "TDM_A Capture",
>> -				"TDMIN_A IN 13", "TDM_A Loopback",
>> -				"TODDR_A IN 0", "TDMIN_A OUT",
>> -				"TODDR_B IN 0", "TDMIN_A OUT",
>> -				"TODDR_C IN 0", "TDMIN_A OUT";
>> -	};
>>  };
>>  
>>  &cpu0 {
>> 
>
> Jerome could you quickly review this ?

Removing that is wrong.
Take a look at the Loopback sink - it is different between the sm1 based
vim3 and the g12b one ... this is simply because the audio block is
different on these SoCs

So audio-routing property can't go way, Because of that, the cards are
slightly different and should have different model.

However the model name here is
a) probably too long
b) misleading :/ 

>
> Thanks,
> Neil