1 files changed, 34 insertions, 22 deletions

diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 4894bde4bbff..30faf6d4ab91 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -147,8 +147,6 @@ struct rspi_data {
         unsigned char spsr;
 
         /* for dmaengine */
-        struct sh_dmae_slave dma_tx;
-        struct sh_dmae_slave dma_rx;
         struct dma_chan *chan_tx;
         struct dma_chan *chan_rx;
         int irq;
@@ -663,20 +661,16 @@ static irqreturn_t rspi_irq(int irq, void *_sr)
         return ret;
 }
 
-static bool rspi_filter(struct dma_chan *chan, void *filter_param)
-{
-        chan->private = filter_param;
-        return true;
-}
-
-static void __devinit rspi_request_dma(struct rspi_data *rspi,
-                                       struct platform_device *pdev)
+static int __devinit rspi_request_dma(struct rspi_data *rspi,
+                                      struct platform_device *pdev)
 {
         struct rspi_plat_data *rspi_pd = pdev->dev.platform_data;
         dma_cap_mask_t mask;
+        struct dma_slave_config cfg;
+        int ret;
 
         if (!rspi_pd)
-                return;
+                return 0;       /* The driver assumes no error. */
 
         rspi->dma_width_16bit = rspi_pd->dma_width_16bit;
 
@@ -684,21 +678,35 @@ static void __devinit rspi_request_dma(struct rspi_data *rspi,
         if (rspi_pd->dma_rx_id && rspi_pd->dma_tx_id) {
                 dma_cap_zero(mask);
                 dma_cap_set(DMA_SLAVE, mask);
-                rspi->dma_rx.slave_id = rspi_pd->dma_rx_id;
-                rspi->chan_rx = dma_request_channel(mask, rspi_filter,
-                                                    &rspi->dma_rx);
-                if (rspi->chan_rx)
-                        dev_info(&pdev->dev, "Use DMA when rx.\n");
+                rspi->chan_rx = dma_request_channel(mask, shdma_chan_filter,
+                                                    (void *)rspi_pd->dma_rx_id);
+                if (rspi->chan_rx) {
+                        cfg.slave_id = rspi_pd->dma_rx_id;
+                        cfg.direction = DMA_DEV_TO_MEM;
+                        ret = dmaengine_slave_config(rspi->chan_rx, &cfg);
+                        if (!ret)
+                                dev_info(&pdev->dev, "Use DMA when rx.\n");
+                        else
+                                return ret;
+                }
         }
         if (rspi_pd->dma_tx_id) {
                 dma_cap_zero(mask);
                 dma_cap_set(DMA_SLAVE, mask);
-                rspi->dma_tx.slave_id = rspi_pd->dma_tx_id;
-                rspi->chan_tx = dma_request_channel(mask, rspi_filter,
-                                                    &rspi->dma_tx);
-                if (rspi->chan_tx)
-                        dev_info(&pdev->dev, "Use DMA when tx\n");
+                rspi->chan_tx = dma_request_channel(mask, shdma_chan_filter,
+                                                    (void *)rspi_pd->dma_tx_id);
+                if (rspi->chan_tx) {
+                        cfg.slave_id = rspi_pd->dma_tx_id;
+                        cfg.direction = DMA_MEM_TO_DEV;
+                        ret = dmaengine_slave_config(rspi->chan_tx, &cfg);
+                        if (!ret)
+                                dev_info(&pdev->dev, "Use DMA when tx\n");
+                        else
+                                return ret;
+                }
         }
+
+        return 0;
 }
 
 static void __devexit rspi_release_dma(struct rspi_data *rspi)
@@ -788,7 +796,11 @@ static int __devinit rspi_probe(struct platform_device *pdev)
         }
 
         rspi->irq = irq;
-        rspi_request_dma(rspi, pdev);
+        ret = rspi_request_dma(rspi, pdev);
+        if (ret < 0) {
+                dev_err(&pdev->dev, "rspi_request_dma failed.\n");
+                goto error4;
+        }
 
         ret = spi_register_master(master);
         if (ret < 0) {