diff options
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 10 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 3 |
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 9864e877e105..70bc77dffb34 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -637,9 +637,13 @@ static int sdhci_pre_dma_transfer(struct sdhci_host *host, } if (mmc_get_dma_dir(data) == DMA_TO_DEVICE) { /* Copy the data to the bounce buffer */ - sg_copy_to_buffer(data->sg, data->sg_len, - host->bounce_buffer, - length); + if (host->ops->copy_to_bounce_buffer) { + host->ops->copy_to_bounce_buffer(host, + data, length); + } else { + sg_copy_to_buffer(data->sg, data->sg_len, + host->bounce_buffer, length); + } } /* Switch ownership to the DMA */ dma_sync_single_for_device(host->mmc->parent, diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 257213a94d89..d628ab6c5a6f 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -645,6 +645,9 @@ struct sdhci_ops { void (*voltage_switch)(struct sdhci_host *host); void (*adma_write_desc)(struct sdhci_host *host, void **desc, dma_addr_t addr, int len, unsigned int cmd); + void (*copy_to_bounce_buffer)(struct sdhci_host *host, + struct mmc_data *data, + unsigned int length); void (*request_done)(struct sdhci_host *host, struct mmc_request *mrq); }; |