From mboxrd@z Thu Jan 1 00:00:00 1970 From: vkoul@infradead.org (Vinod Koul) Date: Fri, 31 Aug 2012 06:25:54 +0530 Subject: [PATCH v3 3/3] spi: spi-davinci: convert to DMA engine API In-Reply-To: <20120830144307.GA26737@beef> References: <1345684176-21472-1-git-send-email-mporter@ti.com> <1345684176-21472-4-git-send-email-mporter@ti.com> <503F75C0.1050507@ti.com> <20120830144307.GA26737@beef> Message-ID: <1346374554.15463.6.camel@vkoul-mobl4> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, 2012-08-30 at 10:43 -0400, Matt Porter wrote: > On Thu, Aug 30, 2012 at 07:46:32PM +0530, Sekhar Nori wrote: > > Hi Matt, > > > > On 8/23/2012 6:39 AM, Matt Porter wrote: > > > Removes use of the DaVinci EDMA private DMA API and replaces > > > it with use of the DMA engine API. > > > > > > Signed-off-by: Matt Porter > > > > I tried testing this patch on my OMAP-L138 EVM, but SPI fails to > > initialize after applying the patch. > > > > root at arago:~# dmesg | grep -i spi > > spi_davinci spi_davinci.1: request RX DMA channel failed > > Hi Sekhar, > > Most likely CONFIG_TI_EDMA is off as it defaults to off in the v3 > series. Try enabling this and if it's the problem then this error > path can be fixed to properly fallback to PIO only or fail to > initialize as needed. I didnt see any update on this one, is it okay, if so care to send a tested-by? -- ~Vinod Koul Intel Corp.