Instead of suspending/resume the USB device at open()/close(), do it
when the device is actually used.
This way we can reduce the power consumption when a service is holding
the video device and leaving it in an idle state.
To: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
Cc: linux-media@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Tomasz Figa <tfiga@xxxxxxxxxxxx>
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
---
Ricardo Ribalda (3):
media: uvcvideo: Only create input devs if hw supports it
media: uvcvideo: Refactor streamon/streamoff
media: uvcvideo: Do power management granularly
drivers/media/usb/uvc/uvc_status.c | 23 +++++
drivers/media/usb/uvc/uvc_v4l2.c | 193 ++++++++++++++++++++++++++++++-------
drivers/media/usb/uvc/uvcvideo.h | 1 +
3 files changed, 182 insertions(+), 35 deletions(-)
---
base-commit: 521a547ced6477c54b4b0cc206000406c221b4d6
change-id: 20220920-resend-powersave-5981719ed267
Best regards,
--
Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
