[PATCH v3 15/46] media: rkisp1: Create link from sensor to ISP at notifier bound time
Laurent Pinchart
laurent.pinchart at ideasonboard.com
Mon Jul 11 05:42:17 PDT 2022
Links from sensors to the ISP can be created as sensors are bound. Move
the link creation from rkisp1_create_links() to the bound notifier, and
clean up the rkisp1_create_links() function while at it.
Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna at fastmail.com>
---
Changes since v1:
- Fix double semicolon
---
.../platform/rockchip/rkisp1/rkisp1-common.h | 2 +
.../platform/rockchip/rkisp1/rkisp1-dev.c | 87 ++++++++-----------
2 files changed, 40 insertions(+), 49 deletions(-)
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index 63eb376d9913..b0896b508db3 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -116,6 +116,7 @@ struct rkisp1_info {
* of the v4l2-async API
*
* @asd: async_subdev variable for the sensor
+ * @index: index of the sensor (counting sensor found in DT)
* @lanes: number of lanes
* @mbus_type: type of bus (currently only CSI2 is supported)
* @mbus_flags: media bus (V4L2_MBUS_*) flags
@@ -125,6 +126,7 @@ struct rkisp1_info {
*/
struct rkisp1_sensor_async {
struct v4l2_async_subdev asd;
+ unsigned int index;
unsigned int lanes;
enum v4l2_mbus_type mbus_type;
unsigned int mbus_flags;
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
index 7fc617d51f44..1b3c3881ca89 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-dev.c
@@ -111,72 +111,46 @@ struct rkisp1_isr_data {
static int rkisp1_create_links(struct rkisp1_device *rkisp1)
{
- struct media_entity *source, *sink;
- unsigned int flags, source_pad;
- struct v4l2_subdev *sd;
unsigned int i;
int ret;
- /* sensor links */
- flags = MEDIA_LNK_FL_ENABLED;
- list_for_each_entry(sd, &rkisp1->v4l2_dev.subdevs, list) {
- if (sd == &rkisp1->isp.sd ||
- sd == &rkisp1->resizer_devs[RKISP1_MAINPATH].sd ||
- sd == &rkisp1->resizer_devs[RKISP1_SELFPATH].sd)
- continue;
-
- ret = media_entity_get_fwnode_pad(&sd->entity, sd->fwnode,
- MEDIA_PAD_FL_SOURCE);
- if (ret < 0) {
- dev_err(rkisp1->dev, "failed to find src pad for %s\n",
- sd->name);
- return ret;
- }
- source_pad = ret;
-
- ret = media_create_pad_link(&sd->entity, source_pad,
- &rkisp1->isp.sd.entity,
- RKISP1_ISP_PAD_SINK_VIDEO,
- flags);
- if (ret)
- return ret;
-
- flags = 0;
- }
-
- flags = MEDIA_LNK_FL_ENABLED | MEDIA_LNK_FL_IMMUTABLE;
-
/* create ISP->RSZ->CAP links */
for (i = 0; i < 2; i++) {
- source = &rkisp1->isp.sd.entity;
- sink = &rkisp1->resizer_devs[i].sd.entity;
- ret = media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_VIDEO,
- sink, RKISP1_RSZ_PAD_SINK,
+ struct media_entity *resizer =
+ &rkisp1->resizer_devs[i].sd.entity;
+ struct media_entity *capture =
+ &rkisp1->capture_devs[i].vnode.vdev.entity;
+
+ ret = media_create_pad_link(&rkisp1->isp.sd.entity,
+ RKISP1_ISP_PAD_SOURCE_VIDEO,
+ resizer, RKISP1_RSZ_PAD_SINK,
MEDIA_LNK_FL_ENABLED);
if (ret)
return ret;
- source = sink;
- sink = &rkisp1->capture_devs[i].vnode.vdev.entity;
- ret = media_create_pad_link(source, RKISP1_RSZ_PAD_SRC,
- sink, 0, flags);
+ ret = media_create_pad_link(resizer, RKISP1_RSZ_PAD_SRC,
+ capture, 0,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (ret)
return ret;
}
/* params links */
- source = &rkisp1->params.vnode.vdev.entity;
- sink = &rkisp1->isp.sd.entity;
- ret = media_create_pad_link(source, 0, sink,
- RKISP1_ISP_PAD_SINK_PARAMS, flags);
+ ret = media_create_pad_link(&rkisp1->params.vnode.vdev.entity, 0,
+ &rkisp1->isp.sd.entity,
+ RKISP1_ISP_PAD_SINK_PARAMS,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
if (ret)
return ret;
/* 3A stats links */
- source = &rkisp1->isp.sd.entity;
- sink = &rkisp1->stats.vnode.vdev.entity;
- return media_create_pad_link(source, RKISP1_ISP_PAD_SOURCE_STATS,
- sink, 0, flags);
+ return media_create_pad_link(&rkisp1->isp.sd.entity,
+ RKISP1_ISP_PAD_SOURCE_STATS,
+ &rkisp1->stats.vnode.vdev.entity, 0,
+ MEDIA_LNK_FL_ENABLED |
+ MEDIA_LNK_FL_IMMUTABLE);
}
static int rkisp1_subdev_notifier_bound(struct v4l2_async_notifier *notifier,
@@ -187,6 +161,7 @@ static int rkisp1_subdev_notifier_bound(struct v4l2_async_notifier *notifier,
container_of(notifier, struct rkisp1_device, notifier);
struct rkisp1_sensor_async *s_asd =
container_of(asd, struct rkisp1_sensor_async, asd);
+ int source_pad;
s_asd->pixel_rate_ctrl = v4l2_ctrl_find(sd->ctrl_handler,
V4L2_CID_PIXEL_RATE);
@@ -206,7 +181,19 @@ static int rkisp1_subdev_notifier_bound(struct v4l2_async_notifier *notifier,
phy_init(s_asd->dphy);
- return 0;
+ /* Create the link to the sensor. */
+ source_pad = media_entity_get_fwnode_pad(&sd->entity, sd->fwnode,
+ MEDIA_PAD_FL_SOURCE);
+ if (source_pad < 0) {
+ dev_err(rkisp1->dev, "failed to find source pad for %s\n",
+ sd->name);
+ return source_pad;
+ }
+
+ return media_create_pad_link(&sd->entity, source_pad,
+ &rkisp1->isp.sd.entity,
+ RKISP1_ISP_PAD_SINK_VIDEO,
+ !s_asd->index ? MEDIA_LNK_FL_ENABLED : 0);
}
static void rkisp1_subdev_notifier_unbind(struct v4l2_async_notifier *notifier,
@@ -248,6 +235,7 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
{
struct v4l2_async_notifier *ntf = &rkisp1->notifier;
unsigned int next_id = 0;
+ unsigned int index = 0;
int ret;
v4l2_async_nf_init(ntf);
@@ -277,6 +265,7 @@ static int rkisp1_subdev_notifier(struct rkisp1_device *rkisp1)
goto err_parse;
}
+ rk_asd->index = index++;
rk_asd->mbus_type = vep.bus_type;
rk_asd->mbus_flags = vep.bus.mipi_csi2.flags;
rk_asd->lanes = vep.bus.mipi_csi2.num_data_lanes;
--
Regards,
Laurent Pinchart
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