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Subject[PATCH v4 12/45] media: sun6i-csi: Add media ops with link notify callback
Date
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>
---
drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
index e59ee3e3f372..578714606c2f 100644
--- a/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
+++ b/drivers/media/platform/sunxi/sun6i-csi/sun6i_csi.c
@@ -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,
@@ -683,6 +690,7 @@ static int sun6i_csi_v4l2_setup(struct sun6i_csi_device *csi_dev)
snprintf(media_dev->bus_info, sizeof(media_dev->bus_info),
"platform:%s", dev_name(dev));
media_dev->hw_revision = 0;
+ media_dev->ops = &sun6i_csi_media_ops;
media_dev->dev = dev;

media_device_init(media_dev);
--
2.35.2
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