On Sat, 2017-07-22 at 14:21 -0700, Steve Longerbeam wrote:
> For the write channels with 4:2:0 subsampled YUV formats, avoid chroma
> overdraw by only writing chroma for even lines. Reduces necessary write
> memory bandwidth by at least 25% (more with rotation enabled).
>
> Signed-off-by: Steve Lo
Hi Steve,
On Sat, 2017-07-22 at 15:04 -0700, Steve Longerbeam wrote:
> Hi Philipp,
>
> This is the same as your patch to CSI, applied to ic-prpencvf.
>
> I'm not really sure what this cpmem bit is doing. The U/V planes
> in memory are already subsampled by 2 in both width and height.
> This must
Hi Philipp,
This is the same as your patch to CSI, applied to ic-prpencvf.
I'm not really sure what this cpmem bit is doing. The U/V planes
in memory are already subsampled by 2 in both width and height.
This must be referring to what the IDMAC is transferring on the bus,
but why would it place
For the write channels with 4:2:0 subsampled YUV formats, avoid chroma
overdraw by only writing chroma for even lines. Reduces necessary write
memory bandwidth by at least 25% (more with rotation enabled).
Signed-off-by: Steve Longerbeam
---
drivers/staging/media/imx/imx-ic-prpencvf.c | 11 +
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