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media: ipu3-cio2: Toggle sensor streaming in pm runtime ops

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The .suspend() and .resume() runtime_pm operations for the ipu3-cio2
driver currently do not handle the sensor's stream. Setting .s_stream() on
or off for the sensor subdev means that sensors will pause and resume the
stream at the appropriate time even if their drivers don't implement those
operations.

Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <djrscally@gmail.com>
Tested-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Daniel Scally 2021-11-23 00:56:11 +01:00 committed by Mauro Carvalho Chehab
parent 7218905afd
commit a5f0900246
1 changed files with 16 additions and 1 deletions
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17
drivers/media/pci/intel/ipu3/ipu3-cio2-main.c
View file

@ -1966,12 +1966,19 @@ static int __maybe_unused cio2_suspend(struct device *dev)
struct pci_dev *pci_dev = to_pci_dev(dev);
struct cio2_device *cio2 = pci_get_drvdata(pci_dev);
struct cio2_queue *q = cio2->cur_queue;
int r;
dev_dbg(dev, "cio2 suspend\n");
if (!cio2->streaming)
return 0;
/* Stop stream */
r = v4l2_subdev_call(q->sensor, video, s_stream, 0);
if (r) {
dev_err(dev, "failed to stop sensor streaming\n");
return r;
}
cio2_hw_exit(cio2, q);
synchronize_irq(pci_dev->irq);
@ -2005,8 +2012,16 @@ static int __maybe_unused cio2_resume(struct device *dev)
}
r = cio2_hw_init(cio2, q);
if (r)
if (r) {
dev_err(dev, "fail to init cio2 hw\n");
return r;
}
r = v4l2_subdev_call(q->sensor, video, s_stream, 1);
if (r) {
dev_err(dev, "fail to start sensor streaming\n");
cio2_hw_exit(cio2, q);
}
return r;
}