It makes more sens to store the sink and source pad index in struct
rvin_graph_entity since that contains other subdevice related
information. Add complete documentation for struct rvin_graph_entity
while we are at it.
Signed-off-by: Niklas Söderlund <niklas.soderlund+rene...@ragnatech.se>
---
drivers/media/platform/rcar-vin/rcar-v4l2.c | 45 ++++++++++++++++++++++-------
drivers/media/platform/rcar-vin/rcar-vin.h | 17 ++++++-----
2 files changed, 44 insertions(+), 18 deletions(-)
diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c
b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 370bb184e5faace7..f8ff7c43944dd64a 100644
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -109,9 +109,14 @@ static int rvin_reset_format(struct rvin_dev *vin)
.which = V4L2_SUBDEV_FORMAT_ACTIVE,
};
struct v4l2_mbus_framefmt *mf = &fmt.format;
+ struct rvin_graph_entity *rent;
int ret;
- fmt.pad = vin->src_pad_idx;
+ rent = vin_to_entity(vin);
+ if (!rent)
+ return -ENODEV;
+
+ fmt.pad = rent->source_pad_idx;
ret = v4l2_subdev_call(vin_to_source(vin), pad, get_fmt, NULL, &fmt);
if (ret)
@@ -182,7 +187,7 @@ static int __rvin_try_format_source(struct rvin_dev *vin,
if (pad_cfg == NULL)
return -ENOMEM;
- format.pad = vin->src_pad_idx;
+ format.pad = rent->source_pad_idx;
field = pix->field;
@@ -560,12 +565,17 @@ static int rvin_enum_dv_timings(struct file *file, void
*priv_fh,
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
+ struct rvin_graph_entity *rent;
int ret;
+ rent = vin_to_entity(vin);
+ if (!rent)
+ return -ENODEV;
+
if (timings->pad)
return -EINVAL;
- timings->pad = vin->sink_pad_idx;
+ timings->pad = rent->sink_pad_idx;
ret = v4l2_subdev_call(sd, pad, enum_dv_timings, timings);
@@ -612,12 +622,17 @@ static int rvin_dv_timings_cap(struct file *file, void
*priv_fh,
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
+ struct rvin_graph_entity *rent;
int ret;
+ rent = vin_to_entity(vin);
+ if (!rent)
+ return -ENODEV;
+
if (cap->pad)
return -EINVAL;
- cap->pad = vin->sink_pad_idx;
+ cap->pad = rent->sink_pad_idx;
ret = v4l2_subdev_call(sd, pad, dv_timings_cap, cap);
@@ -630,12 +645,17 @@ static int rvin_g_edid(struct file *file, void *fh,
struct v4l2_edid *edid)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
+ struct rvin_graph_entity *rent;
int ret;
+ rent = vin_to_entity(vin);
+ if (!rent)
+ return -ENODEV;
+
if (edid->pad)
return -EINVAL;
- edid->pad = vin->sink_pad_idx;
+ edid->pad = rent->sink_pad_idx;
ret = v4l2_subdev_call(sd, pad, get_edid, edid);
@@ -648,12 +668,17 @@ static int rvin_s_edid(struct file *file, void *fh,
struct v4l2_edid *edid)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
+ struct rvin_graph_entity *rent;
int ret;
+ rent = vin_to_entity(vin);
+ if (!rent)
+ return -ENODEV;
+
if (edid->pad)
return -EINVAL;
- edid->pad = vin->sink_pad_idx;
+ edid->pad = rent->sink_pad_idx;
ret = v4l2_subdev_call(sd, pad, set_edid, edid);
@@ -926,19 +951,19 @@ int rvin_v4l2_probe(struct rvin_dev *vin)
vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING |
V4L2_CAP_READWRITE;
- vin->src_pad_idx = 0;
+ vin->digital.source_pad_idx = 0;
for (pad_idx = 0; pad_idx < sd->entity.num_pads; pad_idx++)
if (sd->entity.pads[pad_idx].flags == MEDIA_PAD_FL_SOURCE)
break;
if (pad_idx >= sd->entity.num_pads)
return -EINVAL;
- vin->src_pad_idx = pad_idx;
+ vin->digital.source_pad_idx = pad_idx;
- vin->sink_pad_idx = 0;
+ vin->digital.sink_pad_idx = 0;
for (pad_idx = 0; pad_idx < sd->entity.num_pads; pad_idx++)
if (sd->entity.pads[pad_idx].flags == MEDIA_PAD_FL_SINK) {
- vin->sink_pad_idx = pad_idx;
+ vin->digital.sink_pad_idx = pad_idx;
break;
}
diff --git a/drivers/media/platform/rcar-vin/rcar-vin.h
b/drivers/media/platform/rcar-vin/rcar-vin.h
index daec26a38d896b21..d31212a992e15506 100644
--- a/drivers/media/platform/rcar-vin/rcar-vin.h
+++ b/drivers/media/platform/rcar-vin/rcar-vin.h
@@ -70,10 +70,12 @@ struct rvin_video_format {
/**
* struct rvin_graph_entity - Video endpoint from async framework
- * @asd: sub-device descriptor for async framework
- * @subdev: subdevice matched using async framework
- * @code: Media bus format from source
- * @mbus_cfg: Media bus format from DT
+ * @asd: sub-device descriptor for async framework
+ * @subdev: subdevice matched using async framework
+ * @code: Media bus format from source
+ * @mbus_cfg: Media bus format from DT
+ * @source_pad_idx: source pad index on remote device
+ * @sink_pad_idx: sink pad index on remote device
*/
struct rvin_graph_entity {
struct v4l2_async_subdev asd;
@@ -81,6 +83,9 @@ struct rvin_graph_entity {
u32 code;
struct v4l2_mbus_config mbus_cfg;
+
+ int source_pad_idx;
+ int sink_pad_idx;
};
/**
@@ -91,8 +96,6 @@ struct rvin_graph_entity {
*
* @vdev: V4L2 video device associated with VIN
* @v4l2_dev: V4L2 device
- * @src_pad_idx: source pad index for media controller drivers
- * @sink_pad_idx: sink pad index for media controller drivers
* @ctrl_handler: V4L2 control handler
* @notifier: V4L2 asynchronous subdevs notifier
* @digital: entity in the DT for local digital subdevice
@@ -121,8 +124,6 @@ struct rvin_dev {
struct video_device vdev;
struct v4l2_device v4l2_dev;
- int src_pad_idx;
- int sink_pad_idx;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_async_notifier notifier;
struct rvin_graph_entity digital;
--
2.11.0
--
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