* Javier Martinez Canillas <javier@xxxxxxxxxxxx> [120716 23:56]: > On Tue, Jul 17, 2012 at 8:45 AM, Shilimkar, Santosh > <santosh.shilimkar@xxxxxx> wrote: > > Hi, > > > > On Tue, Jul 17, 2012 at 6:00 AM, Javier Martinez Canillas > > <javier@xxxxxxxxxxxx> wrote: > >> The OMAP MMC and OMAP High Speed MMC hosts now use entirely the DMA > >> engine API instead of the previous private DMA API implementation. > >> > >> So, if the kernel is built with support for any of these hosts but it > >> doesn't support DMA devices nor OMAP DMA support, it fails when trying > >> to obtain a DMA channel which leads to the following error on an OMAP3 > >> IGEPv2 Rev.C board (and probably on most OMAP boards with MMC support): > >> > >> [ 2.199981] omap_hsmmc omap_hsmmc.1: unable to obtain RX DMA engine channel 48 > >> [ 2.215087] omap_hsmmc omap_hsmmc.0: unable to obtain RX DMA engine channel 62 > >> > >> selecting automatically CONFIG_DMADEVICES and CONFIG_DMA_OMAP solves it. > >> > >> Signed-off-by: Javier Martinez Canillas <javier@xxxxxxxxxxxx> > >> --- > > Considering, we are updating drivers to select the DMA engine, can you > > also include > > "drivers/spi/spi-omap2-mcspi.c" which is also updated for DMA engine. > > > > Regards > > Santosh > > Hi Santosh, > > Ok, I'll send a v2 now which includes spi-omap2-mcspi then. I don't think we should do this, the drivers should work with and without dma. This just needs to be added to the omap2plus_defconfig. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
