linux-kernel - Re: [PATCH 0/3] add channel constraint for BDW machine drivers

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Message-ID: <1375d0b1-fafa-95b5-9a06-eefb1897ca42@intel.com>
Date:   Mon, 27 Apr 2020 13:01:14 +0200
From:   Cezary Rojewski <cezary.rojewski@...el.com>
To:     Brent Lu <brent.lu@...el.com>, alsa-devel@...a-project.org
Cc:     Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>,
        Liam Girdwood <liam.r.girdwood@...ux.intel.com>,
        Jie Yang <yang.jie@...ux.intel.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, Ben Zhang <benzh@...omium.org>,
        Mac Chiang <mac.chiang@...el.com>,
        Guennadi Liakhovetski <guennadi.liakhovetski@...ux.intel.com>,
        Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] add channel constraint for BDW machine drivers

On 2020-04-27 10:37, Brent Lu wrote:
> The machine driver bdw-rt5650 (for Google buddy) supports 2 or 4-channel
> recording while other two drivers support only 2-channel recording. HW
> constraints are implemented to reflect the hardware limitation on BDW
> platform.
> 

Message body relates to bdw-rt5650 while the series touches every of BDW 
boards.

Apart from review given for each and every patch (although most issues 
are shared so there is not as much to address) my question is:
- are these hw limitations or software (machine board) limitations?

Czarek

> Brent Lu (3):
>    ASoC: bdw-rt5677: channel constraint support
>    ASoC: bdw-rt5650: channel constraint support
>    ASoC: broadwell: channel constraint support
> 
>   sound/soc/intel/boards/bdw-rt5650.c | 34 ++++++++++++++++++++++++++++++++++
>   sound/soc/intel/boards/bdw-rt5677.c | 33 +++++++++++++++++++++++++++++++++
>   sound/soc/intel/boards/broadwell.c  | 33 +++++++++++++++++++++++++++++++++
>   3 files changed, 100 insertions(+)
>