diff options
Diffstat (limited to 'drivers/mmc/host/mmci.c')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 8555965cdec..28b335fbc8c 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -591,7 +591,12 @@ static void mmci_pre_request(struct mmc_host *mmc, struct mmc_request *mrq, if (mmci_validate_data(host, data)) return; - if (!mmci_dma_prep_next(host, data)) + /* + * Don't prepare DMA if there is no previous request, + * is_first_req is set. Instead, prepare DMA while + * start command is being issued. + */ + if (!is_first_req && !mmci_dma_prep_next(host, data)) data->host_cookie = ++nd->cookie < 0 ? 1 : nd->cookie; } |