[PATCH v3 08/11] media: verisilicon: postproc: Fix down scale test

[Benjamin Gaignard]

Do not allow down scaling if the source buffer resolution is
smaller than destination one.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
---
 drivers/media/platform/verisilicon/hantro_postproc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/verisilicon/hantro_postproc.c b/drivers/media/platform/verisilicon/hantro_postproc.c
index a6b67d0cc66c..a4f2c5e8932c 100644
--- a/drivers/media/platform/verisilicon/hantro_postproc.c
+++ b/drivers/media/platform/verisilicon/hantro_postproc.c
@@ -103,7 +103,10 @@ static void hantro_postproc_g1_enable(struct hantro_ctx *ctx)
 
 static int down_scale_factor(struct hantro_ctx *ctx)
 {
-	if (ctx->src_fmt.width == ctx->dst_fmt.width)
+	if (ctx->src_fmt.width <= ctx->dst_fmt.width)
+		return 0;
+
+	if (ctx->src_fmt.height <= ctx->dst_fmt.height)
 		return 0;
 
 	return DIV_ROUND_CLOSEST(ctx->src_fmt.width, ctx->dst_fmt.width);
-- 
2.39.2