DMAENGINE: generic channel status v2

Convert the device_is_tx_complete() operation on the
DMA engine to a generic device_tx_status()operation which
can return three states, DMA_TX_RUNNING, DMA_TX_COMPLETE,
DMA_TX_PAUSED.

[dan.j.williams@intel.com: update for timberdale]
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Maciej Sosnowski <maciej.sosnowski@intel.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Li Yang <leoli@freescale.com>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
Cc: Magnus Damm <damm@opensource.se>
Cc: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: Joe Perches <joe@perches.com>
Cc: Roland Dreier <rdreier@cisco.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 0099340b9616..59cebbfc89ec 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -726,18 +726,18 @@ static void ioat1_timer_event(unsigned long data)
 }
 
 enum dma_status
-ioat_is_dma_complete(struct dma_chan *c, dma_cookie_t cookie,
-                      dma_cookie_t *done, dma_cookie_t *used)
+ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie,
+                   struct dma_tx_state *txstate)
 {
         struct ioat_chan_common *chan = to_chan_common(c);
         struct ioatdma_device *device = chan->device;
 
-        if (ioat_is_complete(c, cookie, done, used) == DMA_SUCCESS)
+        if (ioat_tx_status(c, cookie, txstate) == DMA_SUCCESS)
                 return DMA_SUCCESS;
 
         device->cleanup_fn((unsigned long) c);
 
-        return ioat_is_complete(c, cookie, done, used);
+        return ioat_tx_status(c, cookie, txstate);
 }
 
 static void ioat1_dma_start_null_desc(struct ioat_dma_chan *ioat)
@@ -857,7 +857,7 @@ int __devinit ioat_dma_self_test(struct ioatdma_device *device)
         tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
 
         if (tmo == 0 ||
-            dma->device_is_tx_complete(dma_chan, cookie, NULL, NULL)
+            dma->device_tx_status(dma_chan, cookie, NULL)
                                         != DMA_SUCCESS) {
                 dev_err(dev, "Self-test copy timed out, disabling\n");
                 err = -ENODEV;
@@ -1198,7 +1198,7 @@ int __devinit ioat1_dma_probe(struct ioatdma_device *device, int dca)
         dma->device_issue_pending = ioat1_dma_memcpy_issue_pending;
         dma->device_alloc_chan_resources = ioat1_dma_alloc_chan_resources;
         dma->device_free_chan_resources = ioat1_dma_free_chan_resources;
-        dma->device_is_tx_complete = ioat_is_dma_complete;
+        dma->device_tx_status = ioat_dma_tx_status;
 
         err = ioat_probe(device);
         if (err)