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| author | Philipp Zabel <p.zabel@pengutronix.de> | 2015-03-23 11:16:21 +0100 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2015-03-31 12:03:55 +0200 |
| commit | 8f361b279f76b1e9548c9b3e59da63d3dec11bea (patch) | |
| tree | 51af9ff5ba9debce63066c03833e05f5dad1fad0 /drivers/gpu/ipu-v3 | |
| parent | gpu: ipu-v3: limit pixel clock divider to 8-bits (diff) | |
| download | linux-8f361b279f76b1e9548c9b3e59da63d3dec11bea.tar.xz linux-8f361b279f76b1e9548c9b3e59da63d3dec11bea.zip | |
gpu: ipu-v3: turns out the IPU can only downsize 4:1
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>
Diffstat (limited to 'drivers/gpu/ipu-v3')
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-ic.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-ic.c b/drivers/gpu/ipu-v3/ipu-ic.c index ad75588e1629..1dcb96ccda66 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; } |