Re: [PATCH] 86xx: Enable the AC97 interface on 8641D board.

[Jon Loeliger <jdl@freescale.com>]

On Thu, 2007-05-03 at 09:44, Kumar Gala wrote:
> On May 2, 2007, at 4:53 PM, Jon Loeliger wrote:
> 
> > From: Jason Jin <jason.jin@freescale.com>
> >
> > HD interface and AC97 interface share some pins and they are  
> > enabled at
> > the same time, In order to use AC97 interface, we need to disable  
> > the HD
> > interface first.
> >
> > Signed-off-by:Jason Jin<jason.jin@freescale.com>
> > Acked-by: Jon Loeliger <jdl@freescale.com>
> > ---
> >  arch/powerpc/platforms/86xx/mpc86xx_hpcn.c |    7 ++++++-
> >  1 files changed, 6 insertions(+), 1 deletions(-)
> 
> Is the HD feature not used at all?  Is there a AC97 Driver CONFIG_  
> that makes sense to wrap that with?  Just wondering about the mutual  
> exclusion (and how to provide flexibility to the user).
> 
> - k


The ULI supports both the HD and AC97 interfaces, but the 8641
only supports the AC97 interface.  Thus we can straight disable
the HD and convert/configure the shared pins to be AC97.  Thus,
there is no real CONFIG_ need at all.  It's only AC97.  And then
ultimately, the presence of sound support is controlled by
the ALSA config options as per normal.

Thanks,
jdl