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[1/2] media: rcar-vin: Gen3 can not scale NV12

Message ID 20230211205432.493102-2-niklas.soderlund+renesas@ragnatech.se (mailing list archive)
State New, archived
Headers show
Series media: rcar-vin: Fix issues with NV12 on Gen3 | expand

Commit Message

Niklas Söderlund Feb. 11, 2023, 8:54 p.m. UTC 
The VIN modules on Gen3 can not scale NV12, fail format validation if
the user tries. Currently no frames are produced if this is attempted.

Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
---
 drivers/media/platform/renesas/rcar-vin/rcar-dma.c | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
index 98bfd445a649..cc6b59e5621a 100644
--- a/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
+++ b/drivers/media/platform/renesas/rcar-vin/rcar-dma.c
@@ -1312,6 +1312,11 @@  static int rvin_mc_validate_format(struct rvin_dev *vin, struct v4l2_subdev *sd,
 	}
 
 	if (rvin_scaler_needed(vin)) {
+		/* Gen3 can't scale NV12 */
+		if (vin->info->model == RCAR_GEN3 &&
+		    vin->format.pixelformat == V4L2_PIX_FMT_NV12)
+			return -EPIPE;
+
 		if (!vin->scaler)
 			return -EPIPE;
 	} else {