On Fri, 23 Feb 2024 at 22:48, Abhinav Kumar <quic_abhinavk@xxxxxxxxxxx> wrote: > > > > On 2/22/2024 3:43 AM, Dmitry Baryshkov wrote: > > The DPU driver provides support for 4:2:0 planar YCbCr plane formats. > > Extend it to also support 4:2:2 and 4:4:4 plat formats. > > > > I checked myself and also internally on this. On sm8250, the DPU planes > do not support YUV444 and YUV422 (and the corresponding YVU formats). > > May I know what was the reference to add these formats to DPU > considering that even downstream sources didn't add them? > > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> > > --- > > Full-screen (1080p@60) YV24 gave me underruns on SM8250 until I bumped > > the clock inefficiency factor from 105 to 117. I'm not sure that it is a > > correct way to handle it, so I'm sending this as an RFC. If we agree > > that bumping the .clk_inefficiency_factor is a correct way, I'll send > > v2, including catalog changes. > > > > I had no such issues for the YV16/YU16 formats. > > We don't support this too on sm8250. But interesting it worked. I have been cross-checking DPU formats list against the format list from the display overview docs. The DPU (and SDE FWIW) drivers supported NV16/61 and UYVY/YUY2/YVYU/VYUY formats for ages, although overview does not mention these semi-planar formats at all and interleaved YUV formats are marked as unsupported. For reference, NV24 and NV42 also seem to work. -- With best wishes Dmitry
