serial: PL011: move interrupt clearing

[pandora-kernel.git] / drivers / tty / serial / amba-pl011.c

diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 20d795d..3d569cd 100644 (file)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -51,6 +51,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/scatterlist.h>
 #include <linux/delay.h>
+#include <linux/types.h>
 
 #include <asm/io.h>
 #include <asm/sizes.h>
@@ -271,6 +272,7 @@ static void pl011_dma_probe_initcall(struct uart_amba_port *uap)
                .dst_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
                .direction = DMA_MEM_TO_DEV,
                .dst_maxburst = uap->fifosize >> 1,
+               .device_fc = false,
        };
        struct dma_chan *chan;
        dma_cap_mask_t mask;
@@ -304,6 +306,7 @@ static void pl011_dma_probe_initcall(struct uart_amba_port *uap)
                        .src_addr_width = DMA_SLAVE_BUSWIDTH_1_BYTE,
                        .direction = DMA_DEV_TO_MEM,
                        .src_maxburst = uap->fifosize >> 1,
+                       .device_fc = false,
                };
 
                chan = dma_request_channel(mask, plat->dma_filter, plat->dma_rx_param);
@@ -481,7 +484,7 @@ 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_MEM_TO_DEV,
+       desc = dmaengine_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);
@@ -664,7 +667,6 @@ static void pl011_dma_rx_callback(void *data);
 static int pl011_dma_rx_trigger_dma(struct uart_amba_port *uap)
 {
        struct dma_chan *rxchan = uap->dmarx.chan;
-       struct dma_device *dma_dev;
        struct pl011_dmarx_data *dmarx = &uap->dmarx;
        struct dma_async_tx_descriptor *desc;
        struct pl011_sgbuf *sgbuf;
@@ -675,8 +677,7 @@ static int pl011_dma_rx_trigger_dma(struct uart_amba_port *uap)
        /* Start the RX DMA job */
        sgbuf = uap->dmarx.use_buf_b ?
                &uap->dmarx.sgbuf_b : &uap->dmarx.sgbuf_a;
-       dma_dev = rxchan->device;
-       desc = rxchan->device->device_prep_slave_sg(rxchan, &sgbuf->sg, 1,
+       desc = dmaengine_prep_slave_sg(rxchan, &sgbuf->sg, 1,
                                        DMA_DEV_TO_MEM,
                                        DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
        /*
@@ -1945,10 +1946,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
                goto unmap;
        }
 
-       /* Ensure interrupts from this UART are masked and cleared */
-       writew(0, uap->port.membase + UART011_IMSC);
-       writew(0xffff, uap->port.membase + UART011_ICR);
-
        uap->vendor = vendor;
        uap->lcrh_rx = vendor->lcrh_rx;
        uap->lcrh_tx = vendor->lcrh_tx;
@@ -1966,6 +1963,10 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
        uap->port.line = i;
        pl011_dma_probe(uap);
 
+       /* Ensure interrupts from this UART are masked and cleared */
+       writew(0, uap->port.membase + UART011_IMSC);
+       writew(0xffff, uap->port.membase + UART011_ICR);
+
        snprintf(uap->type, sizeof(uap->type), "PL011 rev%u", amba_rev(dev));
 
        amba_ports[i] = uap;