The value for downsizing 8:1 is marked as reserved in the technical reference manual and the documentation states downsizing capability up to 4:1 only.
Signed-off-by: Philipp Zabel p.zabel@pengutronix.de --- drivers/gpu/ipu-v3/ipu-ic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/ipu-v3/ipu-ic.c b/drivers/gpu/ipu-v3/ipu-ic.c index ad75588..1dcb96c 100644 --- a/drivers/gpu/ipu-v3/ipu-ic.c +++ b/drivers/gpu/ipu-v3/ipu-ic.c @@ -297,8 +297,8 @@ static int calc_resize_coeffs(struct ipu_ic *ic, return -EINVAL; }
- /* Cannot downsize more than 8:1 */ - if ((out_size << 3) < in_size) { + /* Cannot downsize more than 4:1 */ + if ((out_size << 2) < in_size) { dev_err(ipu->dev, "Unsupported downsize\n"); return -EINVAL; }