Re: [PATCH 00/14] Add support for FM radio in hcill and kill TI_ST

From: Tony Lindgren
Date: Sun Dec 23 2018 - 11:18:51 EST


* Sebastian Reichel <sre@xxxxxxxxxx> [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