On 22 June 2011 01:38, Per Forlin <per.forlin@xxxxxxxxxx> wrote: > pre_req() runs dma_map_sg() and prepares the dma descriptor > for the next mmc data transfer. post_req() runs dma_unmap_sg. > If not calling pre_req() before mmci_request(), mmci_request() > will prepare the cache and dma just like it did it before. > It is optional to use pre_req() and post_req() for mmci. > > Signed-off-by: Per Forlin <per.forlin@xxxxxxxxxx> > --- > drivers/mmc/host/mmci.c | 146 ++++++++++++++++++++++++++++++++++++++++++---- > drivers/mmc/host/mmci.h | 8 +++ > 2 files changed, 141 insertions(+), 13 deletions(-) > ... > @@ -1005,6 +1123,8 @@ static int __devinit mmci_probe(struct amba_device *dev, > host->gpio_cd = -ENOSYS; > host->gpio_cd_irq = -1; > > + host->next_data.cookie = 1; > + Doesn't compile without DMA_ENGINE. Issue reported by Nickolay. I simply move the initialization to mmci_dma_setup. I will update in the next patchset. @@ -215,6 +215,9 @@ static void __devinit mmci_dma_setup(struct mmci_host *host) + /* initialize pre request cookie */ + host->next_data.cookie = 1; + @@ -1121,8 +1124,6 @@ static int __devinit mmci_probe(struct amba_device *dev, - host->next_data.cookie = 1; -- 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
