25 May
2009
25 May
'09
12:51 p.m.
On Mon, May 25, 2009 at 09:56:27AM +0200, Juergen Beisert wrote:
Do you know this (from our website)?
"The AC97 mixer needs a hardware patch to make it wake up from power down mode. Download here the instruction how to do so."
http://www.pengutronix.de/oselas/bsp/phytec/download/phyCORE-MPC5200B-tiny/T...
This modification should not be required - a warm reset should be enough to bring the AC97 link up. The current ASoC driver for the WM9712 will do this automatically - the expectation for non-ASoC systems is that the warm reset will always be issued.
That said, I'd be surprised if it were the same problem given that iterating cold resets appears to resolve whatever the issues is.