linux-kernel - Re: [PATCH] ASoC: cpcap: Implement set_tdm

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Date:   Wed, 19 Feb 2020 17:46:00 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Sebastian Reichel <sebastian.reichel@...labora.com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Liam Girdwood <lgirdwood@...il.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, alsa-devel@...a-project.org,
        linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
        "Arthur D ." <spinal.by@...il.com>,
        Merlijn Wajer <merlijn@...zup.org>,
        Pavel Machek <pavel@....cz>,
        Jarkko Nikula <jarkko.nikula@...mer.com>
Subject: Re: [PATCH] ASoC: cpcap: Implement set_tdm_slot for voice call
 support

On Wed, Feb 19, 2020 at 09:39:02AM -0800, Tony Lindgren wrote:
> * Mark Brown <broonie@...nel.org> [200218 17:43]:

> > you to address for system enablement.  OTOH if you manage to get one of
> > the generic cards working well that'd be excellent!

> Well to me it seems that we just already have all the data needed with
> the graph binding and snd-soc-audio-graph-card + codec2codec support.

> I don't think we have cases where the cpcap codec is not the master,
> so as long as the cpcap codec knows what's going on then there
> may not be a need for machine driver.

> I guess the the bluetooth to modem path is the one to check to see
> what provides the clocks..

Usually in telephony cases it's the modem that's the clock master FWIW.

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