[PATCH v3 28/46] media: rkisp1: isp: Rename rkisp1_device.active_sensor to source

[Laurent Pinchart]

The active_sensor field of the rkisp1_device structure points to the ASD
data for the active source. The source may however not be a sensor, so
the naming is a bit confusing. Furthermore, the driver doesn't need to
access the full ASD from the active_sensor field, only the subdev
pointer is needed, when stopping streaming.

Rename the field to source, and turn it into a v4l2_subdev pointer.

Signed-off-by: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
Reviewed-by: Dafna Hirschfeld <dafna at fastmail.com>
---
 .../platform/rockchip/rkisp1/rkisp1-common.h  |  4 +--
 .../platform/rockchip/rkisp1/rkisp1-isp.c     | 27 +++++++++----------
 2 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
index d07c5c8e5b0d..ee9e724f4bf2 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-common.h
@@ -410,7 +410,7 @@ struct rkisp1_debug {
  * @v4l2_dev:	   v4l2_device variable
  * @media_dev:	   media_device variable
  * @notifier:	   a notifier to register on the v4l2-async API to be notified on the sensor
- * @active_sensor: sensor in-use, set when streaming on
+ * @source:        source subdev in-use, set when starting streaming
  * @csi:	   internal CSI-2 receiver
  * @isp:	   ISP sub-device
  * @resizer_devs:  resizer sub-devices
@@ -430,7 +430,7 @@ struct rkisp1_device {
 	struct v4l2_device v4l2_dev;
 	struct media_device media_dev;
 	struct v4l2_async_notifier notifier;
-	struct rkisp1_sensor_async *active_sensor;
+	struct v4l2_subdev *source;
 	struct rkisp1_csi csi;
 	struct rkisp1_isp isp;
 	struct rkisp1_resizer resizer_devs[2];
diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
index 501996fffca0..944b6ea11853 100644
--- a/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-isp.c
@@ -58,7 +58,7 @@
  * Helpers
  */
 
-static struct v4l2_subdev *rkisp1_get_remote_sensor(struct v4l2_subdev *sd)
+static struct v4l2_subdev *rkisp1_get_remote_source(struct v4l2_subdev *sd)
 {
 	struct media_pad *local, *remote;
 	struct media_entity *sensor_me;
@@ -749,12 +749,11 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 	struct rkisp1_device *rkisp1 =
 		container_of(sd->v4l2_dev, struct rkisp1_device, v4l2_dev);
 	struct rkisp1_isp *isp = &rkisp1->isp;
-	struct v4l2_subdev *sensor_sd;
+	struct rkisp1_sensor_async *asd;
 	int ret;
 
 	if (!enable) {
-		v4l2_subdev_call(rkisp1->active_sensor->sd, video, s_stream,
-				 false);
+		v4l2_subdev_call(rkisp1->source, video, s_stream, false);
 
 		rkisp1_csi_stop(&rkisp1->csi);
 		rkisp1_isp_stop(rkisp1);
@@ -762,35 +761,33 @@ static int rkisp1_isp_s_stream(struct v4l2_subdev *sd, int enable)
 		return 0;
 	}
 
-	sensor_sd = rkisp1_get_remote_sensor(sd);
-	if (!sensor_sd) {
-		dev_warn(rkisp1->dev, "No link between isp and sensor\n");
+	rkisp1->source = rkisp1_get_remote_source(sd);
+	if (!rkisp1->source) {
+		dev_warn(rkisp1->dev, "No link between isp and source\n");
 		return -ENODEV;
 	}
 
-	rkisp1->active_sensor = container_of(sensor_sd->asd,
-					     struct rkisp1_sensor_async, asd);
+	asd = container_of(rkisp1->source->asd, struct rkisp1_sensor_async,
+			   asd);
 
-	if (rkisp1->active_sensor->mbus_type != V4L2_MBUS_CSI2_DPHY)
+	if (asd->mbus_type != V4L2_MBUS_CSI2_DPHY)
 		return -EINVAL;
 
 	rkisp1->isp.frame_sequence = -1;
 	mutex_lock(&isp->ops_lock);
-	ret = rkisp1_config_cif(rkisp1, rkisp1->active_sensor->mbus_type,
-				rkisp1->active_sensor->mbus_flags);
+	ret = rkisp1_config_cif(rkisp1, asd->mbus_type, asd->mbus_flags);
 	if (ret)
 		goto mutex_unlock;
 
 	rkisp1_isp_start(rkisp1);
 
-	ret = rkisp1_csi_start(&rkisp1->csi, rkisp1->active_sensor);
+	ret = rkisp1_csi_start(&rkisp1->csi, asd);
 	if (ret) {
 		rkisp1_isp_stop(rkisp1);
 		goto mutex_unlock;
 	}
 
-	ret = v4l2_subdev_call(rkisp1->active_sensor->sd, video, s_stream,
-			       true);
+	ret = v4l2_subdev_call(rkisp1->source, video, s_stream, true);
 	if (ret) {
 		rkisp1_isp_stop(rkisp1);
 		rkisp1_csi_stop(&rkisp1->csi);
-- 
Regards,

Laurent Pinchart