Re: [PATCH] AC97 support for low power codecs

[Liam Girdwood]

On Tue, 2005-01-04 at 15:08, Takashi Iwai wrote:
> 
> Does writing RESET on such a codec must be avoided always?
> Or can one power up again by writing some values on POWER register?
> 

Writing RESET causes an AC97 codec to return to it's default state. On
some codecs this is state is "power down" and therefore undesirable
during a call to probe.

The only way to wake such a codec is via an AC97 warm reset.

Liam
  

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/