> -----Original Message----- > From: Tomi Valkeinen [mailto:tomi.valkeinen@xxxxxxxxx] > Sent: Tuesday, July 27, 2010 12:50 PM > To: Taneja, Archit > Cc: linux-omap@xxxxxxxxxxxxxxx > Subject: Re: [PATCH v2] OMAP: DSS2: Fix error path in > omap_dsi_update() > > On Wed, 2010-07-14 at 14:11 +0200, ext Archit Taneja wrote: > > In the case of an error on calling dsi_update_screen_l4(), a > > successful framedone callback is still sent to panel-taal. An error > > should be returned to taal_update() instead. > > > > Looks ok to me, I'll add it to my tree. Are you actually > using dsi_update_screen_l4? > > Tomi There is a usecase in OMAP4 where we can run 4 displays in parallel, 3 can be run using the 3 dispc channels, and another DSI panel can be run using L4 updates. It would probably be better if we can connect 2 or more peripherals to one DSI PHY, but with l4 updates we don't need to introduce any hardware changes on the boards. So with l4 update we can free one dispc channel. I am not sure how much the 4 display usecase is going to be used. But having l4 updates is still a handy feature, especially if one wants to run both a DPI and a DSI display on OMAP3 :) Archit-- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
