media: v4l2-subdev: Turn .[gs]_frame_interval into pad operations

The subdev .[gs]_frame_interval are video operations, but they operate
on pads (and even on streams). Not only is this confusing, it causes
practical issues for drivers as the operations don't receive a subdev
state pointer, requiring manual state handling.

To improve the situation, turn the operations into pad operations, and
extend them to receive a state pointer like other pad operations.

While at it, rename the operations to .[gs]et_frame_interval at the same
time to match the naming scheme of other pad operations. This isn't
strictly necessary, but given that all drivers using those operations
need to be modified, handling the rename separately would generate more
churn for very little gain (if at all).

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> # for imx-media
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for tegra-video
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>

1 files changed, 30 insertions, 29 deletions

diff --git a/drivers/media/i2c/ov5648.c b/drivers/media/i2c/ov5648.c
index 13e6060d15d4..d0d7e9968f48 100644
--- a/drivers/media/i2c/ov5648.c
+++ b/drivers/media/i2c/ov5648.c
@@ -2158,37 +2158,8 @@ static int ov5648_s_stream(struct v4l2_subdev *subdev, int enable)
 	return 0;
 }
 
-static int ov5648_g_frame_interval(struct v4l2_subdev *subdev,
-				   struct v4l2_subdev_frame_interval *interval)
-{
-	struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
-	const struct ov5648_mode *mode;
-	int ret = 0;
-
-	mutex_lock(&sensor->mutex);
-
-	mode = sensor->state.mode;
-
-	switch (sensor->state.mbus_code) {
-	case MEDIA_BUS_FMT_SBGGR8_1X8:
-		interval->interval = mode->frame_interval[0];
-		break;
-	case MEDIA_BUS_FMT_SBGGR10_1X10:
-		interval->interval = mode->frame_interval[1];
-		break;
-	default:
-		ret = -EINVAL;
-	}
-
-	mutex_unlock(&sensor->mutex);
-
-	return ret;
-}
-
 static const struct v4l2_subdev_video_ops ov5648_subdev_video_ops = {
 	.s_stream		= ov5648_s_stream,
-	.g_frame_interval	= ov5648_g_frame_interval,
-	.s_frame_interval	= ov5648_g_frame_interval,
 };
 
 /* Subdev Pad Operations */
@@ -2297,6 +2268,34 @@ complete:
 	return ret;
 }
 
+static int ov5648_get_frame_interval(struct v4l2_subdev *subdev,
+				     struct v4l2_subdev_state *sd_state,
+				     struct v4l2_subdev_frame_interval *interval)
+{
+	struct ov5648_sensor *sensor = ov5648_subdev_sensor(subdev);
+	const struct ov5648_mode *mode;
+	int ret = 0;
+
+	mutex_lock(&sensor->mutex);
+
+	mode = sensor->state.mode;
+
+	switch (sensor->state.mbus_code) {
+	case MEDIA_BUS_FMT_SBGGR8_1X8:
+		interval->interval = mode->frame_interval[0];
+		break;
+	case MEDIA_BUS_FMT_SBGGR10_1X10:
+		interval->interval = mode->frame_interval[1];
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	mutex_unlock(&sensor->mutex);
+
+	return ret;
+}
+
 static int ov5648_enum_frame_size(struct v4l2_subdev *subdev,
 				  struct v4l2_subdev_state *sd_state,
 				  struct v4l2_subdev_frame_size_enum *size_enum)
@@ -2363,6 +2362,8 @@ static const struct v4l2_subdev_pad_ops ov5648_subdev_pad_ops = {
 	.enum_mbus_code		= ov5648_enum_mbus_code,
 	.get_fmt		= ov5648_get_fmt,
 	.set_fmt		= ov5648_set_fmt,
+	.get_frame_interval	= ov5648_get_frame_interval,
+	.set_frame_interval	= ov5648_get_frame_interval,
 	.enum_frame_size	= ov5648_enum_frame_size,
 	.enum_frame_interval	= ov5648_enum_frame_interval,
 };