linux-kernel - Re: [alsa-devel] [RFC PATCH 0/5] ASoC: SOF: Intel: SoundWire initial integration

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Date:   Thu, 22 Aug 2019 11:00:14 -0500
From:   Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
To:     Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>
Cc:     alsa-devel@...a-project.org, tiwai@...e.de,
        gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org,
        Ranjani Sridharan <ranjani.sridharan@...ux.intel.com>,
        vkoul@...nel.org, broonie@...nel.org,
        srinivas.kandagatla@...aro.org, jank@...ence.com,
        slawomir.blauciak@...el.com,
        Bard liao <yung-chuan.liao@...ux.intel.com>,
        Rander Wang <rander.wang@...ux.intel.com>
Subject: Re: [alsa-devel] [RFC PATCH 0/5] ASoC: SOF: Intel: SoundWire initial
 integration

> In patch 4/5 I forgot to mention superfluous braces around dev_err()
> in sdw_config_stream() and sdw_free_stream(). Otherwise for the series:

Will fix, thanks for spotting this.

> Reviewed-by: Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>

Thanks, I appreciate the overnight review!

> 
> Thanks
> Guennadi
> 
> On Wed, Aug 21, 2019 at 03:17:15PM -0500, Pierre-Louis Bossart wrote:
>> This RFC is the companion of the other RFC 'soundwire: intel: simplify
>> DAI/PDI handling'. Our purpose at this point is to gather feedback on
>> the interfaces between the Intel SOF parts and the SoundWire code.
>>
>> The suggested solution is a simple init/release inserted at
>> probe/remove and resume/suspend, as well as two callbacks for the SOF
>> driver to generate IPC configurations with the firmware. That level of
>> separation completely hides the details of the SoundWire DAIs and will
>> allow for 'transparent' multi-cpu DAI support, which will be handled
>> in the machine driver and the soundwire DAIs.
>>
>> This solution was tested on IceLake and CometLake, and captures the
>> feedback from SOF contributors on an initial integration that was
>> deemed too complicated (and rightly so).
>>
>> Pierre-Louis Bossart (5):
>>    ASoC: SOF: IPC: dai-intel: move ALH declarations in header file
>>    ASoC: SOF: Intel: hda: add helper to initialize SoundWire IP
>>    ASoC: SOF: Intel: hda: add SoundWire IP support
>>    ASoC: SOF: Intel: hda: add SoundWire stream config/free callbacks
>>    ASoC: SOF: Intel: add support for SoundWire suspend/resume
>>
>>   include/sound/sof/dai-intel.h |  18 ++--
>>   sound/soc/sof/intel/hda-dsp.c |  11 +++
>>   sound/soc/sof/intel/hda.c     | 157 ++++++++++++++++++++++++++++++++++
>>   sound/soc/sof/intel/hda.h     |  11 +++
>>   4 files changed, 188 insertions(+), 9 deletions(-)
>>
>>
>> base-commit: 3b3aaa017e8072b1bfddda92be296b3463d870be
>> -- 
>> 2.20.1
>>
>> _______________________________________________
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>> Alsa-devel@...a-project.org
>> https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
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