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media: ipu3-cio2: Fix PM runtime usage_count in driver unbind

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commit 909d3096ac99fa2289f9b8945a3eab2269947a0a upstream.

Get the PM runtime usage_count and forbid PM runtime at driver unbind. The
opposite is being done in probe() already.

Fixes: commit c2a6a07afe4a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver")
Cc: stable@vger.kernel.org # for >= 4.16
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Bingbu Cao <bingbu.cao@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sakari Ailus 2022-12-21 09:30:11 +01:00 committed by Greg Kroah-Hartman
parent 58c0d0b2d4
commit 964e9e1288
1 changed files with 3 additions and 0 deletions
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3
drivers/media/pci/intel/ipu3/ipu3-cio2.c
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@ -1871,6 +1871,9 @@ static void cio2_pci_remove(struct pci_dev *pci_dev)
v4l2_device_unregister(&cio2->v4l2_dev);
media_device_cleanup(&cio2->media_dev);
mutex_destroy(&cio2->lock);
pm_runtime_forbid(&pci_dev->dev);
pm_runtime_get_noresume(&pci_dev->dev);
}
static int __maybe_unused cio2_runtime_suspend(struct device *dev)