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From: Tony Lindgren <tony@atomide.com>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: alsa-devel@alsa-project.org,
	Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	linux-kernel@vger.kernel.org, Merlijn Wajer <merlijn@wizzup.org>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Takashi Iwai <tiwai@suse.com>, Mark Brown <broonie@kernel.org>,
	Pavel Machek <pavel@ucw.cz>, Sebastian Reichel <sre@kernel.org>,
	linux-omap@vger.kernel.org, "Arthur D ." <spinal.by@gmail.com>,
	Jarkko Nikula <jarkko.nikula@bitmer.com>
Subject: Re: [PATCH] ASoC: ti: Allocate dais dynamically for TDM and audio graph card
Date: Fri, 21 Feb 2020 10:08:21 -0800
Message-ID: <20200221180821.GA37466@atomide.com> (raw)
In-Reply-To: <9ea8239f-3b2d-8206-95ee-2789fbae83d4@ti.com>

* Peter Ujfalusi <peter.ujfalusi@ti.com> [200221 13:21]:
> Hi Tony,
> 
> On 20/02/2020 22.15, Tony Lindgren wrote:
> > * Peter Ujfalusi <peter.ujfalusi@ti.com> [200220 14:16]:
> >> On 18/02/2020 23.16, Sebastian Reichel wrote:
> >>> I suppose in the end its a question if generic card can provide TDM
> >>> support.
> >>
> >> Sure it can, but can it handle the switching between the paths based on
> >> use cases?
> >> There should be machine level DAPM widgets to kick codec2codec (MDM6600
> >> - CPAC_voice for example) and also to make sure that when you switch
> >> between them the system is not going to get misconfigured.
> >> Switching between CPAC and BT route during call?
> >> Not allowing VoIP while on call, etc.
> > 
> > Well I guess the key thing to check here is if it's enough to
> > keep track of things in the cpcap codec driver. If cpcap is always
> > involved, that should be sufficient.
> 
> The codec driver should keep track on what it can do, but should not
> start policing the outside world.
> The machine driver knows the connections and should tell the components
> on what to do.

OK that makes senes to me. So I guess now the question is if
we can maintain this state in snd-soc-audio-graph-card instead
of needing a custom machine driver.

Regards,

Tony

  reply index

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-11 17:16 [alsa-devel] " Tony Lindgren
2020-02-12  8:02 ` Peter Ujfalusi
2020-02-12 14:35   ` Tony Lindgren
2020-02-14  0:34     ` Sebastian Reichel
2020-02-14  1:34       ` Tony Lindgren
2020-02-14 13:04         ` Sebastian Reichel
2020-02-14 17:09           ` Tony Lindgren
2020-02-18 14:04             ` Sebastian Reichel
2020-02-18 14:19               ` Tony Lindgren
2020-02-18 16:35                 ` Sebastian Reichel
2020-02-14 12:41     ` [alsa-devel] " Peter Ujfalusi
2020-02-14 12:49       ` Mark Brown
2020-02-14 17:05         ` Tony Lindgren
2020-02-14 20:05           ` Mark Brown
2020-02-14 17:03       ` Tony Lindgren
2020-02-17  1:38         ` Kuninori Morimoto
2020-02-17  5:25           ` Kuninori Morimoto
2020-02-17 12:09         ` Peter Ujfalusi
2020-02-17 23:10           ` Tony Lindgren
2020-02-17 23:36             ` Tony Lindgren
2020-02-18 15:26               ` Peter Ujfalusi
2020-02-18 15:34                 ` Tony Lindgren
2020-02-18 12:43             ` Peter Ujfalusi
2020-02-18 15:28               ` Tony Lindgren
2020-02-20 14:07                 ` Peter Ujfalusi
2020-02-20 20:13                   ` Tony Lindgren
2020-02-21 14:07                     ` Peter Ujfalusi
2020-02-18 21:16               ` Sebastian Reichel
2020-02-20 14:15                 ` Peter Ujfalusi
2020-02-20 20:15                   ` Tony Lindgren
2020-02-21 13:20                     ` Peter Ujfalusi
2020-02-21 18:08                       ` Tony Lindgren [this message]
2020-02-20 20:47                   ` Sebastian Reichel

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