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authorPeter Ujfalusi <peter.ujfalusi@ti.com>2012-09-14 15:05:47 +0300
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-09-22 11:12:45 -0400
commitec8b5e48c03790a68cb875fe5064007a9cbdfdd0 (patch)
tree18c572345b2c54d3d50f234e0e913d9f227363ba /drivers/dma/at_hdmac.c
parent2dcdf570936168d488acf90be9b04a3d32dafce7 (diff)
downloadlwn-ec8b5e48c03790a68cb875fe5064007a9cbdfdd0.tar.gz
lwn-ec8b5e48c03790a68cb875fe5064007a9cbdfdd0.zip
dmaengine: Pass flags via device_prep_dma_cyclic() callback
Change the parameter list of device_prep_dma_cyclic() so the DMA drivers can receive the flags coming from clients. This feature can be used during audio operation to disable all audio related interrupts when the DMA_PREP_INTERRUPT is cleared from the flags. Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Vinod Koul <vinod.koul@linux.intel.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'drivers/dma/at_hdmac.c')
-rw-r--r--drivers/dma/at_hdmac.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index 3934fcc4e00b..7e5f6b65c651 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -841,12 +841,13 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc,
* @buf_len: total number of bytes for the entire buffer
* @period_len: number of bytes for each period
* @direction: transfer direction, to or from device
+ * @flags: tx descriptor status flags
* @context: transfer context (ignored)
*/
static struct dma_async_tx_descriptor *
atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
size_t period_len, enum dma_transfer_direction direction,
- void *context)
+ unsigned long flags, void *context)
{
struct at_dma_chan *atchan = to_at_dma_chan(chan);
struct at_dma_slave *atslave = chan->private;