On Tuesday 30 November 2010 15:23:47 Hunter Adrian (Nokia-MS/Helsinki) wrote: > From 8c0f4490d93b67326ff24f6ce1c7e925b08d96b3 Mon Sep 17 00:00:00 2001 > From: Adrian Hunter <adrian.hunter@xxxxxxxxx> > Date: Mon, 22 Nov 2010 11:32:48 +0200 > Subject: [PATCH 1/2] OMAP: DMA: prevent races while setting M idle mode to > nostandby > > In a couple of OMAP errata cases, sDMA M idle mode must be > set temporarily to nostandby. If two DMA users were to do > that at the same time, a race condition would arise. > Prevent that by using a spin lock and counting up/down the > number of times nostandby is set/reset. > > Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx> Acked-by: Peter Ujfalusi <peter.ujfalusi@xxxxxxxxx> -- 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
