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media: sun6i-csi: Add media ops with link notify callback

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In order to keep the power use count fields balanced when link changes
happen between v4l2_pipeline_pm_get/set calls (in open/close),
the link_notify media operation callback needs to be registered.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Paul Kocialkowski 2022-08-26 20:32:10 +02:00 committed by Mauro Carvalho Chehab
parent daafbb94ad
commit b11d91321c
1 changed files with 8 additions and 0 deletions
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8
drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
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@ -23,6 +23,7 @@
#include <linux/sched.h>
#include <linux/sizes.h>
#include <linux/slab.h>
#include <media/v4l2-mc.h>
#include "sun6i_csi.h"
#include "sun6i_csi_reg.h"
@ -574,6 +575,12 @@ void sun6i_csi_set_stream(struct sun6i_csi_device *csi_dev, bool enable)
CSI_CAP_CH0_VCAP_ON);
}
/* Media */
static const struct media_device_ops sun6i_csi_media_ops = {
.link_notify = v4l2_pipeline_link_notify,
};
/* V4L2 */
static int sun6i_csi_link_entity(struct sun6i_csi_device *csi_dev,
@ -681,6 +688,7 @@ static int sun6i_csi_v4l2_setup(struct sun6i_csi_device *csi_dev)
strscpy(media_dev->model, SUN6I_CSI_DESCRIPTION,
sizeof(media_dev->model));
media_dev->hw_revision = 0;
media_dev->ops = &sun6i_csi_media_ops;
media_dev->dev = dev;
media_device_init(media_dev);