Hi,
> Takashi Iwai <ti...@suse.de> hat am 8. September 2018 um 18:21 geschrieben:
>
>
> On Sat, 08 Sep 2018 15:18:10 +0200,
> Stefan Wahren wrote:
> >
> > Hi Takashi,
> >
> > > Takashi Iwai <ti...@suse.de> hat am 4. September 2018 um 17:58
> > > geschrieben:
> > >
> > >
> > > Hi,
> > >
> > > since I had an opportunity to play with RPi3B+ recently, I took a look
> > > at the existing bcm2835-audio driver code and was amused very much :)
> > >
> > > So here is the result, a cleanup and fix patch series.
> > >
> > > Most of the patches are trivial cleanups, just brushing up, removing
> > > many redundant and buggy codes, as well as code simplifications.
> > >
> > > A big functional change is that now it uses non-atomic PCM ops, so
> > > that we can kill the ugly workqueue usages. Also, the resource
> > > management was simplified.
> >
> > first of all, thank you very much for this series.
> >
> > Eric has no time as maintainer, so i will try to give you some feedback
> > (beware of very little audio driver knowledge).
> >
> > I functionally tested your patch series on a Raspberry Pi 1 B
> > (bcm2835_defconfig), so this whole series is at least:
> >
> > Tested-by: Stefan Wahren <stefan.wah...@i2se.com>
>
> OK, thanks, I'll put to my series in case of resubmission.
> Meanwhile I'll keep the series in topic/vc04 branch of sound.git
> tree.
does it mean this series should go through your tree instead of Greg's?
>
> > Unfortunately there is still an corruption issue with underlying vchiq and
> > multi_v7_defconfig, so no wider tests.
>
> What is this corruption issue?
Actual there are two of them.
First one are incompatibilities of older VC4 firmware with commit 14dd37fc7b65
("staging: vc04_services: Remove cache-line-size property (v3)"). There is a
pull request for the Foundation kernel which hasn't been upstreamed yet [1].
The second is documented here [2].
[1] - https://github.com/raspberrypi/linux/pull/2666
[2] - https://github.com/lategoodbye/rpi-zero/issues/23
>
> > I don't know if you tested this series on a Raspberry Pi. Maybe you have
> > some specific scenarios, which should be tested.
>
> I have only a RPi3B+, and that's all what I've tested.
Great, just of curiosity which config did you use?
> It'd be great if the patch series could be tested in a wider range of
> models, of course.
>
> The patches are only about cleanups. They corrected the bad usages of
> audio APIs and its design, but basically I haven't touched the basic
> functionality intentionally at all. So the behavior should be kept as
> before.
>
> (Actually it'd be better to revisit the design later, especially about
> the multi-cards option and the PCM route mixer control, but I left as
> is for compatibility reason for now.)
>
> > As a reviewer i have some suggestions, but only trivia. I don't know if
> > it's a problem that this series hasn't been send to
> > de...@driverdev.osuosl.org
>
> No, it's just because that address isn't found in MAINTAINERS file.
> If it should go through it, please correct the entry at first :)
No, this is the mailing list for all staging driver. It is reported by
get_maintainers.pl
Stefan
>
>
> Thanks!
>
> Takashi
