sdhci: use SG_MITER_TO_SG/SG_MITER_FROM_SG

so the page will be flushed on unmap on ARCH which need it.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Pierre Ossman <pierre@ossman.eu>

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 62041c7..fc96f8c 100644 (file)
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -773,8 +773,14 @@ static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_data *data)
        }
 
        if (!(host->flags & SDHCI_REQ_USE_DMA)) {
-               sg_miter_start(&host->sg_miter,
-                       data->sg, data->sg_len, SG_MITER_ATOMIC);
+               int flags;
+
+               flags = SG_MITER_ATOMIC;
+               if (host->data->flags & MMC_DATA_READ)
+                       flags |= SG_MITER_TO_SG;
+               else
+                       flags |= SG_MITER_FROM_SG;
+               sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);
                host->blocks = data->blocks;
        }