mmc: tmio_mmc: use dmaengine helpers, drop submit check

Use the new dmaengine helper functions, and drop the error check
on the returned cookier from the dmaengine - we recently
established that this is really not allowed to fail.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 4 insertions, 13 deletions

diff --git a/drivers/mmc/host/tmio_mmc.c b/drivers/mmc/host/tmio_mmc.c
index 699b6ab209b2..0e4998fa6fc5 100644
--- a/drivers/mmc/host/tmio_mmc.c
+++ b/drivers/mmc/host/tmio_mmc.c
@@ -836,13 +836,8 @@ static void tmio_mmc_start_dma_rx(struct tmio_mmc_host *host)
         if (desc) {
                 desc->callback = tmio_dma_complete;
                 desc->callback_param = host;
-                cookie = desc->tx_submit(desc);
-                if (cookie < 0) {
-                        desc = NULL;
-                        ret = cookie;
-                } else {
-                        chan->device->device_issue_pending(chan);
-                }
+                cookie = dmaengine_submit(desc);
+                dma_async_issue_pending(chan);
         }
         dev_dbg(&host->pdev->dev, "%s(): mapped %d -> %d, cookie %d, rq %p\n",
                 __func__, host->sg_len, ret, cookie, host->mrq);
@@ -915,11 +910,7 @@ static void tmio_mmc_start_dma_tx(struct tmio_mmc_host *host)
         if (desc) {
                 desc->callback = tmio_dma_complete;
                 desc->callback_param = host;
-                cookie = desc->tx_submit(desc);
-                if (cookie < 0) {
-                        desc = NULL;
-                        ret = cookie;
-                }
+                cookie = dmaengine_submit(desc);
         }
         dev_dbg(&host->pdev->dev, "%s(): mapped %d -> %d, cookie %d, rq %p\n",
                 __func__, host->sg_len, ret, cookie, host->mrq);
@@ -963,7 +954,7 @@ static void tmio_issue_tasklet_fn(unsigned long priv)
         struct tmio_mmc_host *host = (struct tmio_mmc_host *)priv;
         struct dma_chan *chan = host->chan_tx;
 
-        chan->device->device_issue_pending(chan);
+        dma_async_issue_pending(chan);
 }
 
 static void tmio_tasklet_fn(unsigned long arg)