[PATCH DNI 23/26] media: pisp_be: Implement set/get_pad_fmt
Jacopo Mondi
jacopo.mondi at ideasonboard.com
Thu Jul 17 03:45:49 PDT 2025
Implement operation handlers for the set and get pad_fmt subdev
pad operations.
Format is only modifiable on the image nodes (of both output and capture
types). Only sizes can be modified.
Signed-off-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
---
.../media/platform/raspberrypi/pisp_be/pisp_be.c | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
diff --git a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c
index 5aec4f8979053500c870e71ce7171bbd1cac9606..22e440f387b5e5560b2cc80a8b3bf6064dc12d7c 100644
--- a/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c
+++ b/drivers/media/platform/raspberrypi/pisp_be/pisp_be.c
@@ -1488,7 +1488,36 @@ static int pispbe_init_node(struct pispbe_dev *pispbe, unsigned int id)
return ret;
}
+static int pispbe_subdev_set_pad_fmt(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *state,
+ struct v4l2_subdev_format *format)
+{
+ struct v4l2_mbus_framefmt *fmt = &format->format;
+
+ /* Only allow setting sizes on the image input and output pads. */
+
+ switch (format->pad) {
+ case TDN_INPUT_NODE:
+ case STITCH_INPUT_NODE:
+ case TDN_OUTPUT_NODE:
+ case STITCH_OUTPUT_NODE:
+ return -EINVAL;
+ }
+
+ fmt->width = clamp(fmt->width, PISP_BACK_END_MIN_TILE_WIDTH,
+ PISP_BACK_END_MAX_TILE_WIDTH);
+ fmt->height = clamp(fmt->height, PISP_BACK_END_MIN_TILE_HEIGHT,
+ PISP_BACK_END_MAX_TILE_HEIGHT);
+ fmt->code = MEDIA_BUS_FMT_FIXED;
+
+ *v4l2_subdev_state_get_format(state, format->pad) = *fmt;
+
+ return 0;
+}
+
static const struct v4l2_subdev_pad_ops pispbe_pad_ops = {
+ .set_fmt = pispbe_subdev_set_pad_fmt,
+ .get_fmt = v4l2_subdev_get_fmt,
.link_validate = v4l2_subdev_link_validate_default,
};
--
2.49.0
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