Re: [PATCH] OMAP: DSS2: DMA optimization using scaler line buffers

2010-06-23 Thread Ville Syrjälä
On Wed, Jun 23, 2010 at 07:18:00AM +0200, ext Nagarajan, Rajkumar wrote: > > DISPC DMA optimization has been enabled and vrfb calls changed as required. > Optimization reduces the memory traffic (DDR memory) when rotation is set > to 90- and 270- degree and SMS-VRFB rotation engine is used. > > W

Re: [PATCH] OMAP: DSS2: DMA optimization using scaler line buffers

2010-06-23 Thread Koen Kooi
Op 23 jun 2010, om 07:18 heeft Nagarajan, Rajkumar het volgende geschreven: > > --- a/drivers/video/omap2/omapfb/omapfb-main.c > +++ b/drivers/video/omap2/omapfb/omapfb-main.c > @@ -552,7 +552,7 @@ static int setup_vrfb_rotation(struct fb_info *fbi) > omap_vrfb_setup(&rg->vrfb, rg->paddr,

[PATCH] OMAP: DSS2: DMA optimization using scaler line buffers

2010-06-22 Thread Nagarajan, Rajkumar
DISPC DMA optimization has been enabled and vrfb calls changed as required. Optimization reduces the memory traffic (DDR memory) when rotation is set to 90- and 270- degree and SMS-VRFB rotation engine is used. With this change, L3 interconnect traffic is reduced by a factor 2x for YUV422 & UYVY