On 13/12/16 19:35, Laurent Pinchart wrote: > Hi Sebastian, > > Thank you for the patch. > > On Tuesday 08 Mar 2016 17:39:44 Sebastian Reichel wrote: >> This is a workaround for a hardware bug occuring >> on OMAP3 with manually updated panels. > > Could you please explain what the bug is and how the workaround operates ? Do > you have a reference to an errata document ? I don't think I ever found out exactly why the problem happens. But on OMAP3 DSI, the fifo thresholds had to be tuned slightly, otherwise DISPC would stop. dispc_ovl_compute_fifo_thresholds() does that tuning if "manual_update" parameter is set on OMAP3. Tomi
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