[Gta04-owner] Echo cancellation again

NeilBrown neilb at suse.de
Sat Mar 31 23:55:06 CEST 2012


On Sat, 31 Mar 2012 23:35:42 +0200 Andreas Kemnade <andreas at kemnade.info>
wrote:

> Hi,
> 
> I have now first phone call experiences using the hardware routing stuff
> in full duplex.
> I found out that VDL_APGA_CTL(0x44)/VDL_PDZ does not get set
> through alsa for whatever reasons. AVDAC_CTL(0x17)/VDAC_EN
> does also not get set.
> The code for them looks the same as for their audio counterparts.
> 
> I also learned about the CONTROL_PADCONF pinmux stuff so McBSP4
> torturing has an end.

Lots of good news!

> 
> Now the interesting question is: How to keep that platform-specific
> stuff out of twl4030? We need to change the pinmux setting for McBSP4-TX
> and then do some setup. Some callback in platform data which is
> triggered by some mixer switch? And then do the pinmux stuff in
> arch/mach-omap2/board-omap3gta04.c?

We need to aim to have no code i board-omap3gta04.c
The way of the future is to use device-tree to describe boards rather than a
board.c file.  And you cannot put code in device-tree.

> 
> I guess first I must unterstand the dapm_route stuff better.

Sounds like that might be worth while.

Thanks,
NeilBrown


> 
> Greetings
> Andreas Kemnade
> 
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> Gta04-owner at goldelico.com
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