From mboxrd@z Thu Jan  1 00:00:00 1970
From: broonie@opensource.wolfsonmicro.com (Mark Brown)
Date: Tue, 26 Jan 2010 10:59:01 +0000
Subject: [PATCH 3/3] ARM: SMDK64XX: Enable AC97 device
In-Reply-To: <1b68c6791001260252t7f43cb97n710381508040f7d4@mail.gmail.com>
References: <1264485101-13782-1-git-send-email-jassisinghbrar@gmail.com>
	<1264485101-13782-2-git-send-email-jassisinghbrar@gmail.com>
	<1264485101-13782-3-git-send-email-jassisinghbrar@gmail.com>
	<20100126101921.GE15759@rakim.wolfsonmicro.main>
	<1b68c6791001260252t7f43cb97n710381508040f7d4@mail.gmail.com>
Message-ID: <20100126105901.GH15759@rakim.wolfsonmicro.main>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Tue, Jan 26, 2010 at 07:52:45PM +0900, jassi brar wrote:
> On Tue, Jan 26, 2010 at 7:19 PM, Mark Brown

> > This one needs a bit more explanation - why are you changing the AC97
> > slot? ?Is this a general problem with the S3C AC97 controller? ?It'd
> > also be better to use the symbolic register name rather than a number.

> It is no problem.
> wm9713 can be configured to place data in one of four possible pair of slots
> 3-4 or 6-9 or 7-8 or 10-11. This call ensures the selected pair is 3-4(standard
> and compatible with Samsung AC97 controllers). Though we don't need to
> explicitly set this if we drop mic dai_link.

Ah, OK.  In this case dropping the second DAI link is the better option
- the CODEC only presents a single stereo ADC pair on the AC97 bus with
selectable inputs rather than having separate ADC(s) for microphone(s).
This means you can't run both DAIs in parallel anyway.