On 09-08-19, 10:32, Hans Verkuil wrote: > The OMAP 4 TRM specifies that when using double-index addressing > the address increases by the ES plus the EI value minus 1 within > a frame. When a full frame is transferred, the address increases > by the ES plus the frame index (FI) value minus 1. > > The omap-dma code didn't account for the 'minus 1' in the FI register. > To get correct addressing, add 1 to the src_icg value. > > This was found when testing a hacked version of the media m2m-deinterlace.c > driver on a Pandaboard. > > The only other source that uses this feature is omap_vout_vrfb.c, > and that adds a + 1 when setting the dst_icg. This is a workaround > for the broken omap-dma.c behavior. So remove the workaround at the > same time that we fix omap-dma.c. > > I tested the omap_vout driver with a Beagle XM board to check that > the '+ 1' in omap_vout_vrfb.c was indeed a workaround for the omap-dma > bug. Applied, thanks -- ~Vinod
