diff mbox series

[v4,11/17] media: imx7: mipi csis: Create media links in bound notifier

Message ID 20200303234256.8928-12-slongerbeam@gmail.com
State New
Headers show
Series [v4,01/17] media: entity: Pass entity to get_fwnode_pad operation | expand

Commit Message

Steve Longerbeam March 3, 2020, 11:42 p.m. UTC
Implement a notifier bound op to register media links from the remote
sub-device's source pad(s) to the mipi csi-2 receiver sink pad.

Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
---
Changes in v3:
- call a local imx-media utility imx_media_create_fwnode_pad_link().
Changes in v2:
- Move notifier_to_csis_state() next to mipi_sd_to_csis_state(), remove
  unnecessary inline, and rename to mipi_notifier_to_csis_state().
  Suggested by Rui Silva.
---
 drivers/staging/media/imx/imx7-mipi-csis.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
diff mbox series

Patch

diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index 7e872d8f51e0..363545127047 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c
@@ -317,6 +317,12 @@  static int mipi_csis_dump_regs(struct csi_state *state)
 	return 0;
 }
 
+static struct csi_state *
+mipi_notifier_to_csis_state(struct v4l2_async_notifier *n)
+{
+	return container_of(n, struct csi_state, notifier);
+}
+
 static struct csi_state *mipi_sd_to_csis_state(struct v4l2_subdev *sdev)
 {
 	return container_of(sdev, struct csi_state, mipi_sd);
@@ -828,6 +834,20 @@  static int mipi_csis_parse_dt(struct platform_device *pdev,
 
 static int mipi_csis_pm_resume(struct device *dev, bool runtime);
 
+static int mipi_csis_notify_bound(struct v4l2_async_notifier *notifier,
+				  struct v4l2_subdev *sd,
+				  struct v4l2_async_subdev *asd)
+{
+	struct csi_state *state = mipi_notifier_to_csis_state(notifier);
+	struct media_pad *sink = &state->mipi_sd.entity.pads[CSIS_PAD_SINK];
+
+	return imx_media_create_fwnode_pad_link(sd, sink);
+}
+
+static const struct v4l2_async_notifier_operations mipi_csis_notify_ops = {
+	.bound = mipi_csis_notify_bound,
+};
+
 static int mipi_csis_subdev_init(struct v4l2_subdev *mipi_sd,
 				 struct platform_device *pdev,
 				 const struct v4l2_subdev_ops *ops)
@@ -899,6 +919,8 @@  static int mipi_csis_async_register(struct csi_state *state)
 
 	fwnode_handle_put(ep);
 
+	state->notifier.ops = &mipi_csis_notify_ops;
+
 	ret = v4l2_async_subdev_notifier_register(&state->mipi_sd,
 						  &state->notifier);
 	if (ret)