Hi Sascha, On Fri, Nov 11 2011, Sascha Hauer wrote: > When we can't configure the dma channel we want to fall > back to PIO. We do this by setting host->do_dma to zero. > This does not work as do_dma is used to see whether dma > can be used for the current transfer. Instead, we have > to set host->dma to NULL. > > Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> > Cc: Chris Ball <cjb@xxxxxxxxxx> > Cc: linux-mmc@xxxxxxxxxxxxxxx > --- > drivers/mmc/host/mxcmmc.c | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c > index 14aa213..b87143d 100644 > --- a/drivers/mmc/host/mxcmmc.c > +++ b/drivers/mmc/host/mxcmmc.c > @@ -731,6 +731,7 @@ static void mxcmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) > "failed to config DMA channel. Falling back to PIO\n"); > dma_release_channel(host->dma); > host->do_dma = 0; > + host->dma = NULL; > } > } Thanks, pushed to mmc-next for 3.2 with a stable@ tag added. - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- 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
