Commit ec8b5e48 authored by Peter Ujfalusi's avatar Peter Ujfalusi Committed by Mark Brown
Browse files

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: default avatarPeter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: default avatarNicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: default avatarShawn Guo <shawn.guo@linaro.org>
Acked-by: default avatarVinod Koul <vinod.koul@linux.intel.com>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent 2dcdf570

drivers/dma/at_hdmac.c

+2 −1
Original line number Diff line number Diff line
@@ -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;

drivers/dma/ep93xx_dma.c

+3 −1
Original line number Diff line number Diff line
@@ -1120,6 +1120,7 @@ fail: 
 * @buf_len: length of the buffer (in bytes)

 * @period_len: lenght of a single period

 * @dir: direction of the operation

 * @flags: tx descriptor status flags

 * @context: operation context (ignored)

 *

 * Prepares a descriptor for cyclic DMA operation. This means that once the
@@ -1133,7 +1134,8 @@ fail: 
static struct dma_async_tx_descriptor *

ep93xx_dma_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t dma_addr,

			   size_t buf_len, size_t period_len,

			   enum dma_transfer_direction dir, void *context)

			   enum dma_transfer_direction dir, unsigned long flags,

			   void *context)

{

	struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);

	struct ep93xx_dma_desc *desc, *first;

drivers/dma/imx-dma.c

+1 −1
Original line number Diff line number Diff line
@@ -801,7 +801,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_slave_sg( 
static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(

		struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len,

		size_t period_len, enum dma_transfer_direction direction,

		void *context)

		unsigned long flags, void *context)

{

	struct imxdma_channel *imxdmac = to_imxdma_chan(chan);

	struct imxdma_engine *imxdma = imxdmac->imxdma;

drivers/dma/imx-sdma.c

+1 −1
Original line number Diff line number Diff line
@@ -1012,7 +1012,7 @@ err_out: 
static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(

		struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len,

		size_t period_len, enum dma_transfer_direction direction,

		void *context)

		unsigned long flags, void *context)

{

	struct sdma_channel *sdmac = to_sdma_chan(chan);

	struct sdma_engine *sdma = sdmac->sdma;

drivers/dma/mmp_tdma.c

+1 −1
Original line number Diff line number Diff line
@@ -358,7 +358,7 @@ struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac) 
static struct dma_async_tx_descriptor *mmp_tdma_prep_dma_cyclic(

		struct dma_chan *chan, dma_addr_t dma_addr, size_t buf_len,

		size_t period_len, enum dma_transfer_direction direction,

		void *context)

		unsigned long flags, void *context)

{

	struct mmp_tdma_chan *tdmac = to_mmp_tdma_chan(chan);

	struct mmp_tdma_desc *desc;

CRA Git | Maintained and supported by SUSTech CRA and CCSE