spi, serial: move to dma_transfer_direction

fixup usage of dma direction by introducing dma_transfer_direction,
this patch moves spi, serial drivers to use new enum

Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Alan Cox <alan@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@iki.fi>

7 files changed, 24 insertions, 21 deletions

diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index 130e55537db6..0a1fc8a27e3d 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -131,7 +131,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
         rxchan = dws->rxchan;
 
         /* 2. Prepare the TX dma transfer */
-        txconf.direction = DMA_TO_DEVICE;
+        txconf.direction = DMA_MEM_TO_DEV;
         txconf.dst_addr = dws->dma_addr;
         txconf.dst_maxburst = LNW_DMA_MSIZE_16;
         txconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
@@ -147,13 +147,13 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
         txdesc = txchan->device->device_prep_slave_sg(txchan,
                                 &dws->tx_sgl,
                                 1,
-                                DMA_TO_DEVICE,
+                                DMA_MEM_TO_DEV,
                                 DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
         txdesc->callback = dw_spi_dma_done;
         txdesc->callback_param = dws;
 
         /* 3. Prepare the RX dma transfer */
-        rxconf.direction = DMA_FROM_DEVICE;
+        rxconf.direction = DMA_DEV_TO_MEM;
         rxconf.src_addr = dws->dma_addr;
         rxconf.src_maxburst = LNW_DMA_MSIZE_16;
         rxconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
@@ -169,7 +169,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
         rxdesc = rxchan->device->device_prep_slave_sg(rxchan,
                                 &dws->rx_sgl,
                                 1,
-                                DMA_FROM_DEVICE,
+                                DMA_DEV_TO_MEM,
                                 DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
         rxdesc->callback = dw_spi_dma_done;
         rxdesc->callback_param = dws;
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index 1cf645479bfe..0afd87dd9459 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -550,6 +550,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
         struct dma_async_tx_descriptor *txd;
         enum dma_slave_buswidth buswidth;
         struct dma_slave_config conf;
+        enum dma_transfer_direction slave_dirn;
         struct scatterlist *sg;
         struct sg_table *sgt;
         struct dma_chan *chan;
@@ -572,6 +573,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
 
                 conf.src_addr = espi->sspdr_phys;
                 conf.src_addr_width = buswidth;
+                slave_dirn = DMA_DEV_TO_MEM;
         } else {
                 chan = espi->dma_tx;
                 buf = t->tx_buf;
@@ -579,6 +581,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
 
                 conf.dst_addr = espi->sspdr_phys;
                 conf.dst_addr_width = buswidth;
+                slave_dirn = DMA_MEM_TO_DEV;
         }
 
         ret = dmaengine_slave_config(chan, &conf);
@@ -630,7 +633,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_data_direction dir)
                 return ERR_PTR(-ENOMEM);
 
         txd = chan->device->device_prep_slave_sg(chan, sgt->sgl, nents,
-                                                 dir, DMA_CTRL_ACK);
+                                                 slave_dirn, DMA_CTRL_ACK);
         if (!txd) {
                 dma_unmap_sg(chan->device->dev, sgt->sgl, sgt->nents, dir);
                 return ERR_PTR(-ENOMEM);
@@ -978,7 +981,7 @@ static int ep93xx_spi_setup_dma(struct ep93xx_spi *espi)
         dma_cap_set(DMA_SLAVE, mask);
 
         espi->dma_rx_data.port = EP93XX_DMA_SSP;
-        espi->dma_rx_data.direction = DMA_FROM_DEVICE;
+        espi->dma_rx_data.direction = DMA_DEV_TO_MEM;
         espi->dma_rx_data.name = "ep93xx-spi-rx";
 
         espi->dma_rx = dma_request_channel(mask, ep93xx_spi_dma_filter,
@@ -989,7 +992,7 @@ static int ep93xx_spi_setup_dma(struct ep93xx_spi *espi)
         }
 
         espi->dma_tx_data.port = EP93XX_DMA_SSP;
-        espi->dma_tx_data.direction = DMA_TO_DEVICE;
+        espi->dma_tx_data.direction = DMA_MEM_TO_DEV;
         espi->dma_tx_data.name = "ep93xx-spi-tx";
 
         espi->dma_tx = dma_request_channel(mask, ep93xx_spi_dma_filter,
diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 730b4a37b823..ddcddf4b1248 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -910,11 +910,11 @@ static int configure_dma(struct pl022 *pl022)
 {
         struct dma_slave_config rx_conf = {
                 .src_addr = SSP_DR(pl022->phybase),
-                .direction = DMA_FROM_DEVICE,
+                .direction = DMA_DEV_TO_MEM,
         };
         struct dma_slave_config tx_conf = {
                 .dst_addr = SSP_DR(pl022->phybase),
-                .direction = DMA_TO_DEVICE,
+                .direction = DMA_MEM_TO_DEV,
         };
         unsigned int pages;
         int ret;
@@ -1051,7 +1051,7 @@ static int configure_dma(struct pl022 *pl022)
         rxdesc = rxchan->device->device_prep_slave_sg(rxchan,
                                       pl022->sgt_rx.sgl,
                                       rx_sglen,
-                                      DMA_FROM_DEVICE,
+                                      DMA_DEV_TO_MEM,
                                       DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!rxdesc)
                 goto err_rxdesc;
@@ -1059,7 +1059,7 @@ static int configure_dma(struct pl022 *pl022)
         txdesc = txchan->device->device_prep_slave_sg(txchan,
                                       pl022->sgt_tx.sgl,
                                       tx_sglen,
-                                      DMA_TO_DEVICE,
+                                      DMA_MEM_TO_DEV,
                                       DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!txdesc)
                 goto err_txdesc;
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index 1d23f3831866..7eba26e20aeb 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1051,7 +1051,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
         }
         sg = dma->sg_rx_p;
         desc_rx = dma->chan_rx->device->device_prep_slave_sg(dma->chan_rx, sg,
-                                        num, DMA_FROM_DEVICE,
+                                        num, DMA_DEV_TO_MEM,
                                         DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc_rx) {
                 dev_err(&data->master->dev, "%s:device_prep_slave_sg Failed\n",
@@ -1086,7 +1086,7 @@ static void pch_spi_handle_dma(struct pch_spi_data *data, int *bpw)
         }
         sg = dma->sg_tx_p;
         desc_tx = dma->chan_tx->device->device_prep_slave_sg(dma->chan_tx,
-                                        sg, num, DMA_TO_DEVICE,
+                                        sg, num, DMA_MEM_TO_DEV,
                                         DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc_tx) {
                 dev_err(&data->master->dev, "%s:device_prep_slave_sg Failed\n",
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index f5f6831b0a64..460ff7dbfd63 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -268,7 +268,7 @@ static void pl011_dma_probe_initcall(struct uart_amba_port *uap)
         struct dma_slave_config tx_conf = {
                 .dst_addr = uap->port.mapbase + UART01x_DR,
                 .dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
-                .direction = DMA_TO_DEVICE,
+                .direction = DMA_MEM_TO_DEV,
                 .dst_maxburst = uap->fifosize >> 1,
         };
         struct dma_chan *chan;
@@ -301,7 +301,7 @@ static void pl011_dma_probe_initcall(struct uart_amba_port *uap)
                 struct dma_slave_config rx_conf = {
                         .src_addr = uap->port.mapbase + UART01x_DR,
                         .src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
-                        .direction = DMA_FROM_DEVICE,
+                        .direction = DMA_DEV_TO_MEM,
                         .src_maxburst = uap->fifosize >> 1,
                 };
 
@@ -480,7 +480,7 @@ static int pl011_dma_tx_refill(struct uart_amba_port *uap)
                 return -EBUSY;
         }
 
-        desc = dma_dev->device_prep_slave_sg(chan, &dmatx->sg, 1, DMA_TO_DEVICE,
+        desc = dma_dev->device_prep_slave_sg(chan, &dmatx->sg, 1, DMA_MEM_TO_DEV,
                                              DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc) {
                 dma_unmap_sg(dma_dev->dev, &dmatx->sg, 1, DMA_TO_DEVICE);
@@ -676,7 +676,7 @@ static int pl011_dma_rx_trigger_dma(struct uart_amba_port *uap)
                 &uap->dmarx.sgbuf_b : &uap->dmarx.sgbuf_a;
         dma_dev = rxchan->device;
         desc = rxchan->device->device_prep_slave_sg(rxchan, &sgbuf->sg, 1,
-                                        DMA_FROM_DEVICE,
+                                        DMA_DEV_TO_MEM,
                                         DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         /*
          * If the DMA engine is busy and cannot prepare a
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index b46218d679e2..73201a11697a 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -747,7 +747,7 @@ static int dma_handle_rx(struct eg20t_port *priv)
         sg_dma_address(sg) = priv->rx_buf_dma;
 
         desc = priv->chan_rx->device->device_prep_slave_sg(priv->chan_rx,
-                        sg, 1, DMA_FROM_DEVICE,
+                        sg, 1, DMA_DEV_TO_MEM,
                         DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 
         if (!desc)
@@ -906,7 +906,7 @@ static unsigned int dma_handle_tx(struct eg20t_port *priv)
         }
 
         desc = priv->chan_tx->device->device_prep_slave_sg(priv->chan_tx,
-                                        priv->sg_tx_p, nent, DMA_TO_DEVICE,
+                                        priv->sg_tx_p, nent, DMA_MEM_TO_DEV,
                                         DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc) {
                 dev_err(priv->port.dev, "%s:device_prep_slave_sg Failed\n",
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index dbd32a1286d3..3683a69b45ee 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1207,7 +1207,7 @@ static void sci_submit_rx(struct sci_port *s)
                 struct dma_async_tx_descriptor *desc;
 
                 desc = chan->device->device_prep_slave_sg(chan,
-                        sg, 1, DMA_FROM_DEVICE, DMA_PREP_INTERRUPT);
+                        sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT);
 
                 if (desc) {
                         s->desc_rx[i] = desc;
@@ -1322,7 +1322,7 @@ static void work_fn_tx(struct work_struct *work)
         BUG_ON(!sg_dma_len(sg));
 
         desc = chan->device->device_prep_slave_sg(chan,
-                        sg, s->sg_len_tx, DMA_TO_DEVICE,
+                        sg, s->sg_len_tx, DMA_MEM_TO_DEV,
                         DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
         if (!desc) {
                 /* switch to PIO */