linux-kernel - Re: [PATCH 00/14] Add support for FM radio in hcill and kill TI

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Message-ID: <20181223161530.GL6707@atomide.com>
Date:   Sun, 23 Dec 2018 08:15:30 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Sebastian Reichel <sre@...nel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Marcel Holtmann <marcel@...tmann.org>,
        Rob Herring <robh@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Pavel Machek <pavel@....cz>, linux-bluetooth@...r.kernel.org,
        linux-media@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 00/14] Add support for FM radio in hcill and kill TI_ST

* Sebastian Reichel <sre@...nel.org> [181222 02:48]:
> On Fri, Dec 21, 2018 at 10:02:05AM -0800, Tony Lindgren wrote:
> > Hmm so looks like nothing to configure for the clocks or
> > CPCAP_BIT_ST_L_TIMESLOT bits for cap for the EXT? So the
> > wl12xx audio is wired directly to cpcap EXT then and not a
> > TDM slot on the mcbsp huh?
> 
> For FM radio it's directly wired to EXT with no DAI being required.
> I think that EXT is only used by FM radio and not by bluetooth. BT
> seems to use TDM.

OK then it sounds like we just need a diff -u of the cpcap regs
from Android with cpcaprw --all before and after using a bluetooth
headset during a voice call to configure it for voice calls for the
TDM. I think snd-soc-motmd just needs the voice output specified
in the mixer in addition to the cpcap configuration.

I don't think have any bluetooth audio gear though, maybe somebody
using a headset can post the diff.

Regards,

Tony