Bug#1038385: linux-image-amd64: Please enable CONFIG_INTEL_SKL_INT3472 for the Intel Skylake power controller

[Jan Binder]

Package: linux-image-amd64
Version: 6.3.7-1
Severity: wishlist

Dear Maintainer,

please set CONFIG_INTEL_SKL_INT3472=m to build the intel-skl-int3472 module.

This module is necessary to use some cameras built into Intel Skylake laptops.


-- System Information:
Debian Release: trixie/sid
APT prefers stable-security
APT policy: (500, 'stable-security'), (500, 'unstable'), (500, 'stable'), (500, 'oldstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.3.0-1-amd64 (SMP w/16 CPU threads; PREEMPT)
Kernel taint flags: TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages linux-image-amd64 depends on:
ii linux-image-6.3.0-1-amd64 6.3.7-1

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

-- no debconf information

[Martin Sofaru]

Dear maintainer,

since kernel 6.4.

CONFIG_VIDEO_V4L2_SUBDEV_API=y needs to be set aswell.

It was previously enabled until kernel 6.3.


CONFIG_INTEL_SKL_INT3472=m and
CONFIG_VIDEO_V4L2_SUBDEV_API=y

are needed to compile ipu6-drivers-dkms for the new Intel Computervision
webcams present in major manufacturer's new designs, for example
Lenovo's X1 Carbon gen10+ or X1 Yoga Gen7+.

Thank you

Martin

[Vincent Blut]

Hi Martin,

This driver should select VIDEO_V4L2_SUBDEV_API, right?

> Thank you
>
> Martin

Cheers,
Vincent

[Martin Sofaru]

Hi Vincent,

On Tue, 25 Jul 2023 22:50:35 +0200 Vincent Blut <vincent...@free.fr>
wrote:

currently the dkms from ipu6-drivers just fails to compile when
CONFIG_VIDEO_V4L2_SUBDEV_API is not set. So if I enable some other not
related media driver that selects CONFIG_VIDEO_V4L2_SUBDEV_API=y I can
build ipu6-drivers.

I simply noticed that
config-6.3.0-1-amd64 and
config-6.3.0-2-amd64
have CONFIG_VIDEO_V4L2_SUBDEV_API=y while config-6.4.0-1-amd64 has not.

I do not know the reasoning for the removal of that config.

At this point I am just grateful I can use the camera in my device at all :)


Cheers

Martin

[Vincent Blut]

Le 2023-07-26 14:57, Martin Sofaru a écrit :
> Hi Vincent,
>
> On Tue, 25 Jul 2023 22:50:35 +0200 Vincent Blut <vincent...@free.fr>
> wrote:
> > Hi Martin,
> >
> > Le 2023-07-25 16:15, Martin Sofaru a écrit :
> > > Dear maintainer,
> > > > since kernel 6.4.
> > > > CONFIG_VIDEO_V4L2_SUBDEV_API=y needs to be set aswell.
> > > > It was previously enabled until kernel 6.3.
> > > > > CONFIG_INTEL_SKL_INT3472=m and
> >
> > […]
> >
> > > CONFIG_VIDEO_V4L2_SUBDEV_API=y
> > > > are needed to compile ipu6-drivers-dkms for the new Intel
> > Computervision
> > > webcams present in major manufacturer's new designs, for example Lenovo's X1
> > > Carbon gen10+ or X1 Yoga Gen7+.
> >
> > This driver should select VIDEO_V4L2_SUBDEV_API, right?
>
> currently the dkms from ipu6-drivers just fails to compile when
> CONFIG_VIDEO_V4L2_SUBDEV_API is not set. So if I enable some other not
> related media driver that selects CONFIG_VIDEO_V4L2_SUBDEV_API=y I can build
> ipu6-drivers.

If this driver requires this API then it should select VIDEO_V4L2_SUBDEV_API.
Could you eventually send a bug report upstream?

> I simply noticed that
> config-6.3.0-1-amd64 and
> config-6.3.0-2-amd64
> have CONFIG_VIDEO_V4L2_SUBDEV_API=y while config-6.4.0-1-amd64 has not.
>
> I do not know the reasoning for the removal of that config.

CONFIG_VIDEO_V4L2_SUBDEV_API was available in Linux 6.3 thanks to the
CONFIG_VIDEO_NOON010PC30 option. However that camera sensor driver has been
dropped in Linux 6.4 and none of the camera sensor drivers enabled in Debian
select CONFIG_VIDEO_V4L2_SUBDEV_API.

> At this point I am just grateful I can use the camera in my device at all :)

Understandable ;)