[PATCH v4 19/22] gpu: ipu-v3: image-convert: fix bytesperline adjustment

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For planar formats, bytesperline does not depend on BPP. It must always
be larger than width and aligned to tile width alignment restrictions.

The input bytesperline to ipu_image_convert_adjust() may be
uninitialized, so don't rely on input bytesperline as the
minimum value for clamp_align(). Use 2 << w_align as the minimum
instead.

Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
[slongerbeam@xxxxxxxxx: clamp input bytesperline]
Signed-off-by: Steve Longerbeam <slongerbeam@xxxxxxxxx>
---
No changes since v3.
---
 drivers/gpu/ipu-v3/ipu-image-convert.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c
index 0829723a7599..b735065fe288 100644
--- a/drivers/gpu/ipu-v3/ipu-image-convert.c
+++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
@@ -1915,10 +1915,18 @@ void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out,
 	out->pix.height = clamp_align(out->pix.height, MIN_H, MAX_H, h_align);
 
 	/* set input/output strides and image sizes */
-	in->pix.bytesperline = (in->pix.width * infmt->bpp) >> 3;
-	in->pix.sizeimage = in->pix.height * in->pix.bytesperline;
-	out->pix.bytesperline = (out->pix.width * outfmt->bpp) >> 3;
-	out->pix.sizeimage = out->pix.height * out->pix.bytesperline;
+	in->pix.bytesperline = infmt->planar ?
+		clamp_align(in->pix.width, 2 << w_align, MAX_W, w_align) :
+		clamp_align((in->pix.width * infmt->bpp) >> 3,
+			    2 << w_align, MAX_W, w_align);
+	in->pix.sizeimage = infmt->planar ?
+		(in->pix.height * in->pix.bytesperline * infmt->bpp) >> 3 :
+		in->pix.height * in->pix.bytesperline;
+	out->pix.bytesperline = outfmt->planar ? out->pix.width :
+		(out->pix.width * outfmt->bpp) >> 3;
+	out->pix.sizeimage = outfmt->planar ?
+		(out->pix.height * out->pix.bytesperline * outfmt->bpp) >> 3 :
+		out->pix.height * out->pix.bytesperline;
 }
 EXPORT_SYMBOL_GPL(ipu_image_convert_adjust);
 
-- 
2.19.0




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