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Message-ID: <cd26593f-31bc-4a1d-abd9-2fbf3539b030@linaro.org>
Date: Tue, 7 May 2024 20:16:09 +0200
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Subject: Re: [PATCH 2/4] ASoC: qcom: q6dsp: Implement proper channel mapping
 in Audioreach
To: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
 James Schulman <james.schulman@cirrus.com>,
 David Rhodes <david.rhodes@cirrus.com>,
 Richard Fitzgerald <rf@opensource.cirrus.com>,
 Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
 Liam Girdwood <lgirdwood@gmail.com>, Mark Brown <broonie@kernel.org>,
 Lars-Peter Clausen <lars@metafoo.de>, =?UTF-8?Q?Nuno_S=C3=A1?=
 <nuno.sa@analog.com>, Banajit Goswami <bgoswami@quicinc.com>
Cc: alsa-devel@alsa-project.org, patches@opensource.cirrus.com,
 linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20240507-asoc-x1e80100-4-channel-mapping-v1-0-b12c13e0a55d@linaro.org>
 <20240507-asoc-x1e80100-4-channel-mapping-v1-2-b12c13e0a55d@linaro.org>
 <89cf75d8-1f85-43d8-9c33-377a04b36121@linaro.org>
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From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <89cf75d8-1f85-43d8-9c33-377a04b36121@linaro.org>
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On 07/05/2024 15:25, Srinivas Kandagatla wrote:
> 
> 
> On 07/05/2024 11:27, Krzysztof Kozlowski wrote:
>> Instead of relying on default channel mapping in all Audioreach
>> platforms, implement set_channel_map() callback to allow sound cards
>> customize the mapping depending on needs.
>>
>> The channel mapping is set on frontend DAIs coming from the topology,
>> not DTS, thus need to add DAI ops in topology dai_load() callback.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
>> ---
>>   sound/soc/qcom/qdsp6/audioreach.c |  2 +-
>>   sound/soc/qcom/qdsp6/audioreach.h |  1 +
>>   sound/soc/qcom/qdsp6/q6apm.c      | 28 +++++++++++++++++++++++++++-
>>   sound/soc/qcom/qdsp6/q6apm.h      |  8 ++++++++
>>   sound/soc/qcom/qdsp6/topology.c   | 12 ++++++++++++
>>   5 files changed, 49 insertions(+), 2 deletions(-)
> Please use the existing q6dma_set_channel_map() and set the channel map 
> for the backend dai from machine driver, this should work.
> 
> setting channels on FE is not a scalable one.
> 
> Please take a look at some of the patches that I shared privately.
> 

Ack

Best regards,
Krzysztof