Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

[pandora-kernel.git] / drivers / mmc / host / tmio_mmc_dma.c

diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c
index 25f1ad6..86f259c 100644 (file)
--- a/drivers/mmc/host/tmio_mmc_dma.c
+++ b/drivers/mmc/host/tmio_mmc_dma.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/device.h>
+#include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
 #include <linux/mfd/tmio.h>
 #include <linux/mmc/host.h>
@@ -22,11 +23,14 @@
 
 #define TMIO_MMC_MIN_DMA_LEN 8
 
-static void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
+void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable)
 {
+       if (!host->chan_tx || !host->chan_rx)
+               return;
+
 #if defined(CONFIG_SUPERH) || defined(CONFIG_ARCH_SHMOBILE)
        /* Switch DMA mode on or off - SuperH specific? */
-       writew(enable ? 2 : 0, host->ctl + (0xd8 << host->bus_shift));
+       sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0);
 #endif
 }