diff options
Diffstat (limited to 'drivers/dma/imx-sdma.c')
| -rw-r--r-- | drivers/dma/imx-sdma.c | 23 |
1 files changed, 6 insertions, 17 deletions
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index eb0bd2d30a1f..9a27080efa57 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -800,19 +800,6 @@ static void sdma_enable_channel(struct sdma_engine *sdma, int channel) __raw_writel(1 << channel, sdma->regs + SDMA_H_START); } -static dma_cookie_t sdma_assign_cookie(struct sdma_channel *sdmac) -{ - dma_cookie_t cookie = sdmac->chan.cookie; - - if (++cookie < 0) - cookie = 1; - - sdmac->chan.cookie = cookie; - sdmac->desc.cookie = cookie; - - return cookie; -} - static struct sdma_channel *to_sdma_chan(struct dma_chan *chan) { return container_of(chan, struct sdma_channel, chan); @@ -826,7 +813,7 @@ static dma_cookie_t sdma_tx_submit(struct dma_async_tx_descriptor *tx) spin_lock_irq(&sdmac->lock); - cookie = sdma_assign_cookie(sdmac); + cookie = dma_cookie_assign(tx); sdma_enable_channel(sdma, sdmac->channel); @@ -1119,9 +1106,11 @@ static enum dma_status sdma_tx_status(struct dma_chan *chan, static void sdma_issue_pending(struct dma_chan *chan) { - /* - * Nothing to do. We only have a single descriptor - */ + struct sdma_channel *sdmac = to_sdma_chan(chan); + struct sdma_engine *sdma = sdmac->sdma; + + if (sdmac->status == DMA_IN_PROGRESS) + sdma_enable_channel(sdma, sdmac->channel); } #define SDMA_SCRIPT_ADDRS_ARRAY_SIZE_V1 34 |