Re: ALC658 SPDIF input patch

["Stefan Macher" <Stefan.Macher@web.de>]

> 
> At Sun, 9 Jan 2005 22:49:44 +0100,
> Stefan Macher wrote:
> > 
> > Hi,
> > 
> > I have made a patch to get SPDIF input working with the Realtek ALC658. 
> > Realtek has changed the meaning of the Pin47 function selection bit (MX7A bit 
> > 1 ) between ALC655 and ALC658.
> > 
> > ALC655: 0 -> external amplifier power down; 1 -> SPDIF IN
> > ALC658: 0 -> SPDIF IN; 1 -> external amplifier power down
> > 
> > 
> > Can please anybody include this into CVS.
> 
> The patch looks fine.
> 
> Could you provide a signed-off-by line and a brief summary of your
> patch to put as a changelog?  The best would be like:
> 
> 	Summary: Fix blah
> 
> 	The patch fixes the problem of the driver xxx...
> 
> 	Signed-off-by: Foo Bar <foo@bar.com>
> 
> 
> We need (prefer) to have this for each patch from contributors,
> especially for the changes to alsa-kernel tree, which will appear
> eventually in the Linux kernel tree.
> 
> 
> thanks,
> 
> Takashi
> 

Summary: Adapt SPDIF Input selection for Realtek ALC658

This fixes the SPDIF Input selection for ALC658 as Realtek has changed the meaning betweenALC655 and ALC658. 

Signed-off-by: Stefan Macher <Stefan.Macher@web.de>

-------------------------------------------------------------------------------------------------------------
 
 --- alsa-driver-1.0.8rc2/alsa-kernel/pci/ac97/ac97_patch.c      2005-01-04 
 12:01:01.000000000 +0100
 +++ alsa-driver-1.0.8rc2-alc658patch/alsa-kernel/pci/ac97/ac97_patch.c  
 2005-01-09 22:20:53.933529512 +0100
 @@ -1605,7 +1605,10 @@
 
         /* adjust default values */
         val = snd_ac97_read(ac97, 0x7a); /* misc control */
 -       val |= (1 << 1); /* spdif input pin */
 +       if(ac97->id == 0x414c4780) /* ALC658 */
 +               val &= ~(1 << 1); /* Pin 47 is spdif input pin */
 +       else /* ALC655 */
 +               val |= (1 << 1); /* Pin 47 is spdif input pin */
         val &= ~(1 << 12); /* vref enable */
         snd_ac97_write_cache(ac97, 0x7a, val);
         /* set default: spdif-in enabled,
 
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