Merge 3.5-rc7 into char-misc-next.

[firefly-linux-kernel-4.4.55.git] / drivers / mmc / host / atmel-mci.c

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 456c077455cbf564d36e355a2f119da0600bf44c..f2c115e064387715a3c2f2cf796c5ae8b70bddd0 100644 (file)
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -910,6 +910,7 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
        enum dma_data_direction         direction;
        enum dma_transfer_direction     slave_dirn;
        unsigned int                    sglen;
+       u32                             maxburst;
        u32 iflags;
 
        data->error = -EINPROGRESS;
@@ -943,17 +944,18 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data)
        if (!chan)
                return -ENODEV;
 
-       if (host->caps.has_dma)
-               atmci_writel(host, ATMCI_DMA, ATMCI_DMA_CHKSIZE(3) | ATMCI_DMAEN);
-
        if (data->flags & MMC_DATA_READ) {
                direction = DMA_FROM_DEVICE;
                host->dma_conf.direction = slave_dirn = DMA_DEV_TO_MEM;
+               maxburst = atmci_convert_chksize(host->dma_conf.src_maxburst);
        } else {
                direction = DMA_TO_DEVICE;
                host->dma_conf.direction = slave_dirn = DMA_MEM_TO_DEV;
+               maxburst = atmci_convert_chksize(host->dma_conf.dst_maxburst);
        }
 
+       atmci_writel(host, ATMCI_DMA, ATMCI_DMA_CHKSIZE(maxburst) | ATMCI_DMAEN);
+
        sglen = dma_map_sg(chan->device->dev, data->sg,
                        data->sg_len, direction);