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

[bingbu.cao@intel.com]

From: Bingbu Cao <bingbu.cao@intel.com>

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
Signed-off-by: Bingbu Cao <bingbu.cao@intel.com>
---
 drivers/staging/media/ipu7/ipu7-isys-video.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/ipu7/ipu7-isys-video.c b/drivers/staging/media/ipu7/ipu7-isys-video.c
index 8756da3a8fb0..173afd405d9b 100644
--- a/drivers/staging/media/ipu7/ipu7-isys-video.c
+++ b/drivers/staging/media/ipu7/ipu7-isys-video.c
@@ -946,6 +946,7 @@ void ipu7_isys_fw_close(struct ipu7_isys *isys)
 		ipu7_fw_isys_close(isys);
 
 	mutex_unlock(&isys->mutex);
+	pm_runtime_put(&isys->adev->auxdev.dev);
 }
 
 int ipu7_isys_setup_video(struct ipu7_isys_video *av,
-- 
2.34.1