[PATCH 14/22] media: imx7-mipi-csis: Create media links in bound notifier
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: 2019-08-05 23:36:17
Also in:
linux-media, lkml
Subsystem:
media drivers for freescale imx, media input infrastructure (v4l/dvb), staging subsystem, the rest · Maintainers:
Steve Longerbeam, Philipp Zabel, Mauro Carvalho Chehab, Greg Kroah-Hartman, Linus Torvalds
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> --- drivers/staging/media/imx/imx7-mipi-csis.c | 25 ++++++++++++++++++++++ 1 file changed, 25 insertions(+)
diff --git a/drivers/staging/media/imx/imx7-mipi-csis.c b/drivers/staging/media/imx/imx7-mipi-csis.c
index f71d9183cad2..e03b2317a1ac 100644
--- a/drivers/staging/media/imx/imx7-mipi-csis.c
+++ b/drivers/staging/media/imx/imx7-mipi-csis.c@@ -259,6 +259,12 @@ struct csi_state { bool sink_linked; }; +static inline struct csi_state * +notifier_to_csis_state(struct v4l2_async_notifier *n) +{ + return container_of(n, struct csi_state, notifier); +} + struct csis_pix_format { unsigned int pix_width_alignment; u32 code;
@@ -863,6 +869,23 @@ static int mipi_csis_parse_endpoint(struct device *dev, return 0; } +static int mipi_csis_notify_bound(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *sd, + struct v4l2_async_subdev *asd) +{ + struct csi_state *state = notifier_to_csis_state(notifier); + struct media_pad *sink = &state->mipi_sd.entity.pads[CSIS_PAD_SINK]; + + return media_create_fwnode_pad_links(sink, + dev_fwnode(state->mipi_sd.dev), + &sd->entity, + dev_fwnode(sd->dev), 0); +} + +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)
@@ -895,6 +918,8 @@ static int mipi_csis_subdev_init(struct v4l2_subdev *mipi_sd, v4l2_async_notifier_init(&state->notifier); + state->notifier.ops = &mipi_csis_notify_ops; + ret = v4l2_async_register_fwnode_subdev(mipi_sd, &state->notifier, sizeof(struct v4l2_async_subdev), &sink_port, 1,
--
2.17.1
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