[GIT PULL FOR v6.16] uvcvideo improvements

[GIT PULL FOR v6.16] uvcvideo improvements

[Laurent Pinchart]

Hi Mauro, Hans,

The following changes since commit 0af2f6be1b4281385b618cb86ad946eded089ac8:

  Linux 6.15-rc1 (2025-04-06 13:11:33 -0700)

are available in the Git repository at:

  https://gitlab.freedesktop.org/linux-media/users/pinchartl.git tags/next-media-uvc-20250509

for you to fetch changes up to 9882222fa76450e545aeb625522ced7a78ff79a0:

  media: uvcvideo: Use dev_err_probe for devm_gpiod_get_optional (2025-04-07 15:31:55 +0200)

----------------------------------------------------------------
uvcvideo improvements:

- Granular power saving
- Controls cache sync fix
- GPIO deferred probe error fix

----------------------------------------------------------------
Ricardo Ribalda (10):
      media: uvcvideo: Keep streaming state in the file handle
      media: uvcvideo: Create uvc_pm_(get|put) functions
      media: uvcvideo: Increase/decrease the PM counter per IOCTL
      media: uvcvideo: Make power management granular
      media: uvcvideo: Do not turn on the camera for some ioctls
      media: uvcvideo: Return the number of processed controls
      media: uvcvideo: Send control events for partial succeeds
      media: uvcvideo: Rollback non processed entities on error
      media: uvcvideo: Fix deferred probing error
      media: uvcvideo: Use dev_err_probe for devm_gpiod_get_optional

 drivers/media/usb/uvc/uvc_ctrl.c   |  91 +++++++++++++++++++++--------
 drivers/media/usb/uvc/uvc_driver.c |  38 ++++++++----
 drivers/media/usb/uvc/uvc_v4l2.c   | 117 +++++++++++++++++++++++++++++--------
 drivers/media/usb/uvc/uvcvideo.h   |   5 ++
 4 files changed, 190 insertions(+), 61 deletions(-)

-- 
Regards,

Laurent Pinchart

Re: [GIT PULL FOR v6.16] uvcvideo improvements

[Mauro Carvalho Chehab]

Hi Laurent,

Em Fri, 9 May 2025 14:46:15 +0200
Laurent Pinchart <laurent.pinchart@ideasonboard.com> escreveu:

> Hi Mauro, Hans,
> 
> The following changes since commit 0af2f6be1b4281385b618cb86ad946eded089ac8:
> 
>   Linux 6.15-rc1 (2025-04-06 13:11:33 -0700)
> 
> are available in the Git repository at:
> 
>   https://gitlab.freedesktop.org/linux-media/users/pinchartl.git tags/next-media-uvc-20250509
> 
> for you to fetch changes up to 9882222fa76450e545aeb625522ced7a78ff79a0:
> 
>   media: uvcvideo: Use dev_err_probe for devm_gpiod_get_optional (2025-04-07 15:31:55 +0200)
> 
> ----------------------------------------------------------------
> uvcvideo improvements:
> 
> - Granular power saving
> - Controls cache sync fix
> - GPIO deferred probe error fix

It doesn't seem to be the case of this PR, since it sounds mostly fixes,
but if a driver is getting some relevant improvement from user's perspective,
please be a little bit more verbose at the e-mail's subject. Something like:

	Subject: uvcvideo: added support for xxx

As otherwise, I'll simply ignore the PR's subject when submitting
upstream pull requests.

Regards,
Mauro


> 
> ----------------------------------------------------------------
> Ricardo Ribalda (10):
>       media: uvcvideo: Keep streaming state in the file handle
>       media: uvcvideo: Create uvc_pm_(get|put) functions
>       media: uvcvideo: Increase/decrease the PM counter per IOCTL
>       media: uvcvideo: Make power management granular
>       media: uvcvideo: Do not turn on the camera for some ioctls
>       media: uvcvideo: Return the number of processed controls
>       media: uvcvideo: Send control events for partial succeeds
>       media: uvcvideo: Rollback non processed entities on error
>       media: uvcvideo: Fix deferred probing error
>       media: uvcvideo: Use dev_err_probe for devm_gpiod_get_optional
> 
>  drivers/media/usb/uvc/uvc_ctrl.c   |  91 +++++++++++++++++++++--------
>  drivers/media/usb/uvc/uvc_driver.c |  38 ++++++++----
>  drivers/media/usb/uvc/uvc_v4l2.c   | 117 +++++++++++++++++++++++++++++--------
>  drivers/media/usb/uvc/uvcvideo.h   |   5 ++
>  4 files changed, 190 insertions(+), 61 deletions(-)
> 



Thanks,
Mauro

Re: [GIT PULL FOR v6.16] uvcvideo improvements

[Laurent Pinchart]

Hi Mauro,

On Tue, May 27, 2025 at 09:08:31AM +0200, Mauro Carvalho Chehab wrote:
> Em Fri, 9 May 2025 14:46:15 +0200 Laurent Pinchart escreveu:
> 
> > Hi Mauro, Hans,
> > 
> > The following changes since commit 0af2f6be1b4281385b618cb86ad946eded089ac8:
> > 
> >   Linux 6.15-rc1 (2025-04-06 13:11:33 -0700)
> > 
> > are available in the Git repository at:
> > 
> >   https://gitlab.freedesktop.org/linux-media/users/pinchartl.git tags/next-media-uvc-20250509
> > 
> > for you to fetch changes up to 9882222fa76450e545aeb625522ced7a78ff79a0:
> > 
> >   media: uvcvideo: Use dev_err_probe for devm_gpiod_get_optional (2025-04-07 15:31:55 +0200)
> > 
> > ----------------------------------------------------------------
> > uvcvideo improvements:
> > 
> > - Granular power saving
> > - Controls cache sync fix
> > - GPIO deferred probe error fix
> 
> It doesn't seem to be the case of this PR, since it sounds mostly fixes,
> but if a driver is getting some relevant improvement from user's perspective,
> please be a little bit more verbose at the e-mail's subject. Something like:
> 
> 	Subject: uvcvideo: added support for xxx
> 
> As otherwise, I'll simply ignore the PR's subject when submitting
> upstream pull requests.

Do you mean the subject line of the pull request, as in "[GIT PULL FOR
v6.16] ..." ? There's very little space there to list all changes, which
is why the pull request body contains a summary for your convenience
that you can integrate in merge commit messages or in pull requests
mails to Linus.

> > ----------------------------------------------------------------
> > Ricardo Ribalda (10):
> >       media: uvcvideo: Keep streaming state in the file handle
> >       media: uvcvideo: Create uvc_pm_(get|put) functions
> >       media: uvcvideo: Increase/decrease the PM counter per IOCTL
> >       media: uvcvideo: Make power management granular
> >       media: uvcvideo: Do not turn on the camera for some ioctls
> >       media: uvcvideo: Return the number of processed controls
> >       media: uvcvideo: Send control events for partial succeeds
> >       media: uvcvideo: Rollback non processed entities on error
> >       media: uvcvideo: Fix deferred probing error
> >       media: uvcvideo: Use dev_err_probe for devm_gpiod_get_optional
> > 
> >  drivers/media/usb/uvc/uvc_ctrl.c   |  91 +++++++++++++++++++++--------
> >  drivers/media/usb/uvc/uvc_driver.c |  38 ++++++++----
> >  drivers/media/usb/uvc/uvc_v4l2.c   | 117 +++++++++++++++++++++++++++++--------
> >  drivers/media/usb/uvc/uvcvideo.h   |   5 ++
> >  4 files changed, 190 insertions(+), 61 deletions(-)

-- 
Regards,

Laurent Pinchart