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Date: Thu, 22 Mar 2012 21:19:10 -0500 From: H Hartley Sweeten <hartleys@...ionengravers.com> To: Mika Westerberg <mika.westerberg@....fi>, Rafal Prylowski <prylowski@...asoft.pl> CC: "linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "vinod.koul@...el.com" <vinod.koul@...el.com>, "rmallon@...il.com" <rmallon@...il.com> Subject: RE: [PATCH] ep93xx: Implement double buffering for M2M DMA channels On Wednesday, March 21, 2012 12:39 PM, Mika Westerberg wrote: > On Tue, Mar 20, 2012 at 09:09:26AM +0100, Rafal Prylowski wrote: >> Implement double buffering for M2M DMA channels. >> >> Signed-off-by: Rafal Prylowski <prylowski@...asoft.pl> > > The subject line prefix should probably be 'dmaengine/ep93xx_dma: ' but > otherwise this looks good. > > Acked-by: Mika Westerberg <mika.westerberg@....fi> Mika, Did you test this patch or just review it? On my system it doesn't work. I think it has something to do with the changes to m2m_hw_interrupt but I haven't tracked it down yet. It looks like what's missing is a: edmac->edma->hw_submit(edmac); But, maybe that's not needed with double buffering? Regards, Hartley -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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