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serial: imx: use the dmaengine_tx_status 

Use the dmaengine_tx_status to simplify the code, do not change any logic.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Huang Shijie 2013-10-11 18:31:01 +08:00 committed by Greg Kroah-Hartman
parent 947c74eba8
commit f0ef8834b2
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/imx.c
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@ -521,7 +521,7 @@ static void dma_tx_work(struct work_struct *w)
unsigned long flags;
int ret;
status = chan->device->device_tx_status(chan, (dma_cookie_t)0, NULL);
status = dmaengine_tx_status(chan, (dma_cookie_t)0, NULL);
if (DMA_IN_PROGRESS == status)
return;
@ -926,7 +926,7 @@ static void dma_rx_callback(void *data)
/* unmap it first */
dma_unmap_sg(sport->port.dev, sgl, 1, DMA_FROM_DEVICE);
status = chan->device->device_tx_status(chan, (dma_cookie_t)0, &state);
status = dmaengine_tx_status(chan, (dma_cookie_t)0, &state);
count = RX_BUF_SIZE - state.residue;
dev_dbg(sport->port.dev, "We get %d bytes.\n", count);