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    Subject[PATCH 5.1 058/138] gpu: ipu-v3: image-convert: Fix input bytesperline for packed formats
    Date
    [ Upstream commit bca4d70cf1b8f6478a711c448a3a1e47b794b162 ]

    The input bytesperline calculation for packed pixel formats was
    incorrect. The min/max clamping values must be multiplied by the
    packed bits-per-pixel. This was causing corrupted converted images
    when the input format was RGB4 (probably also other input packed
    formats).

    Fixes: d966e23d61a2c ("gpu: ipu-v3: image-convert: fix bytesperline
    adjustment")

    Reported-by: Harsha Manjula Mallikarjun <Harsha.ManjulaMallikarjun@in.bosch.com>
    Suggested-by: Harsha Manjula Mallikarjun <Harsha.ManjulaMallikarjun@in.bosch.com>
    Signed-off-by: Steve Longerbeam <slongerbeam@gmail.com>
    Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/gpu/ipu-v3/ipu-image-convert.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    diff --git a/drivers/gpu/ipu-v3/ipu-image-convert.c b/drivers/gpu/ipu-v3/ipu-image-convert.c
    index 0d971985f8c9..19d3b85e0e98 100644
    --- a/drivers/gpu/ipu-v3/ipu-image-convert.c
    +++ b/drivers/gpu/ipu-v3/ipu-image-convert.c
    @@ -1942,7 +1942,9 @@ void ipu_image_convert_adjust(struct ipu_image *in, struct ipu_image *out,
    clamp_align(in->pix.width, 2 << w_align_in, MAX_W,
    w_align_in) :
    clamp_align((in->pix.width * infmt->bpp) >> 3,
    - 2 << w_align_in, MAX_W, w_align_in);
    + ((2 << w_align_in) * infmt->bpp) >> 3,
    + (MAX_W * infmt->bpp) >> 3,
    + w_align_in);
    in->pix.sizeimage = infmt->planar ?
    (in->pix.height * in->pix.bytesperline * infmt->bpp) >> 3 :
    in->pix.height * in->pix.bytesperline;
    --
    2.20.1


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