At Sun, 29 Apr 2007 14:09:29 -0700 (PDT),
Giridhar Pemmasani wrote:
>
> --- Adrian Bunk <[email protected]> wrote:
>
> > On Sun, Apr 29, 2007 at 09:55:18AM -0700, Giridhar Pemmasani wrote:
> > > When snd-maestro3 (ESS Maestro 3 driver) is enabled, kernel 2.6.21 fails
> > to
> > > boot - it seems to stop at various points depending on what other modules
> > are
> > > enabled. Disabling snd-maestro3 fixes all issues. Moreover, with
> > everything
> > > else being same, using maestro3.c from 2.6.20 kernel and using it in
> > 2.6.21
> > > kernel also works - i.e., system boots fine. I will try to isolate the
> > issue
> > > and follow up.
> >
> > There were only the two attached patches between 2.6.20 and 2.6.21 to
> > this driver:
> > - maestro3: add request_firmware()
> > - maestro3 - Use quirk list helper function
> >
> > 2.6.21 + 2.6.20 maestro3.c works for you.
> >
> > Does 2.6.21 + 2.6.20 maestro3.c + patch-maestro3-1 work?
>
> 2.6.21 with 2.6.20's maestro3.c with patch-maestro3-1 exhibited the same
> issue. However, I identified the cause: maestro3 driver in 2.6.21 (even just
> patch-maestro3-1) tries to load firmware file from user space. But each time
> request_firmware is called it takes about 1 minute to timeout (because I
> don't have the firmware installed?).
Yes, some drivers (e.g. maestro3, ymfpci) require now external
firmwares. Try to install them from the latest alsa-firmware
package.
I already added new Kconfigs to choose whether external or in-kernel
firmware for 2.6.22. Anything else should be as it was. (The
replacement with quirk list helper doesn't change the functionality.)
Takashi
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