media: staging/ipu7: fix isys device runtime PM usage in firmware closing

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commit 895d3b4b58 upstream.

The PM usage counter of isys was bumped up when start camera stream
(opening firmware) but it was not dropped after stream stop(closing
firmware), it forbids system fail to suspend due to the wrong PM state
of ISYS. This patch drop the PM usage counter in firmware close to fix
it.

Cc: Stable@vger.kernel.org
Fixes: a516d36bdc ("media: staging/ipu7: add IPU7 input system device driver")
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Bingbu Cao 2025-09-09 14:01:53 +08:00 • committed by Greg Kroah-Hartman

parent 74f7399007

commit cf7bd54b30

1 changed files with 1 additions and 0 deletions

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drivers/staging/media/ipu7/ipu7-isys-video.c

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