- It's not necessary to start DMA op manually, as we have autostart feature enabled - Restore prescaler before DMA operation, otherwise it takes ages to complete DMA op. Signed-off-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx> --- drivers/mmc/host/s3cmci.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c index 2e16e0a..5d1a8ed 100644 --- a/drivers/mmc/host/s3cmci.c +++ b/drivers/mmc/host/s3cmci.c @@ -1106,6 +1106,8 @@ static int s3cmci_prepare_dma(struct s3cmci_host *host, struct mmc_data *data) sg_dma_address(&data->sg[i]), sg_dma_len(&data->sg[i])); + /* Restore prescaler value */ + writel(host->prescaler, host->base + S3C2410_SDIPRE); res = s3c2410_dma_enqueue(host->dma, host, sg_dma_address(&data->sg[i]), sg_dma_len(&data->sg[i])); @@ -1116,8 +1118,6 @@ static int s3cmci_prepare_dma(struct s3cmci_host *host, struct mmc_data *data) } } - s3c2410_dma_ctrl(host->dma, S3C2410_DMAOP_START); - return 0; } -- 1.7.2.2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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