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SubjectRe: [PATCH] AC97 support for low power codecs
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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


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