dmasound hangs on new G4s (2)

Tom Rini trini at
Tue Mar 27 01:24:48 EST 2001

On Mon, Mar 26, 2001 at 01:00:22PM +0100, Iain Sandoe wrote:
> >>Okay, dmasound compiled in hangs the new G4s, but this change had no effect
> >>on it otherwise (I also have a few Bogus interrupts, w/ or w/o this).
> >
> > One of those new G4s that have the new "digital sound" chip ?
> >If I remember correctly, they have no AWACS, but an ibook-like chip on the
> > I2S bus. I beleive it's normal dmasound doesn't work properly with it.
> "Tumbler" audio (whatever that is ;-))) [WWDC, Ben?]
> OK - could you send me the device-tree stuff? - and I'll compare it with
> what we've got.

It's whatever is in the new G4s.  And I do believe there was an i2s bus in
OF when I was poking around before.

> has a nice (if somewhat slow) script that turns the
> dev-tree into html.

I'll shoot this off to you privately in a bit.

> With the BK _2_4 tree (and no other patches) i2s-a is checked and connected
> for output - *but* there may be a 'mixer-related' issue (because that's
> different too).  I've fixed that up for the iBook (so that it doesn't try
> and do any AWACS-related stuff).... but that won't work for the new G4
> necessarily.

Okay.  I'll see what happens when I enable modules in a bit as well...

Tom Rini (TR1265)

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