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authorMaxime Ripard <maxime.ripard@free-electrons.com>2014-11-17 14:42:34 +0100
committerVinod Koul <vinod.koul@intel.com>2014-12-22 12:32:16 +0530
commited14a7c9fa345cd5334209cdab89fc45e731cad6 (patch)
treedaf8e2c0e11b6d281847e7240f1d003eaa3b199d /drivers/dma
parentbe60f94074cf1caf165c0494aa393bcd2e322af4 (diff)
downloadlinux-ed14a7c9fa345cd5334209cdab89fc45e731cad6.tar.bz2
dmaengine: sirf: Split device_control
Split the device_control callback of the SiRF Prima 2 DMA driver to make use of the newly introduced callbacks, that will eventually be used to retrieve slave capabilities. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/sirf-dma.c43
1 files changed, 13 insertions, 30 deletions
diff --git a/drivers/dma/sirf-dma.c b/drivers/dma/sirf-dma.c
index 11c85fc450a1..fab9c9c1b421 100644
--- a/drivers/dma/sirf-dma.c
+++ b/drivers/dma/sirf-dma.c
@@ -281,9 +281,10 @@ static dma_cookie_t sirfsoc_dma_tx_submit(struct dma_async_tx_descriptor *txd)
return cookie;
}
-static int sirfsoc_dma_slave_config(struct sirfsoc_dma_chan *schan,
- struct dma_slave_config *config)
+static int sirfsoc_dma_slave_config(struct dma_chan *chan,
+ struct dma_slave_config *config)
{
+ struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
unsigned long flags;
if ((config->src_addr_width != DMA_SLAVE_BUSWIDTH_4_BYTES) ||
@@ -297,8 +298,9 @@ static int sirfsoc_dma_slave_config(struct sirfsoc_dma_chan *schan,
return 0;
}
-static int sirfsoc_dma_terminate_all(struct sirfsoc_dma_chan *schan)
+static int sirfsoc_dma_terminate_all(struct dma_chan *chan)
{
+ struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
struct sirfsoc_dma *sdma = dma_chan_to_sirfsoc_dma(&schan->chan);
int cid = schan->chan.chan_id;
unsigned long flags;
@@ -327,8 +329,9 @@ static int sirfsoc_dma_terminate_all(struct sirfsoc_dma_chan *schan)
return 0;
}
-static int sirfsoc_dma_pause_chan(struct sirfsoc_dma_chan *schan)
+static int sirfsoc_dma_pause_chan(struct dma_chan *chan)
{
+ struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
struct sirfsoc_dma *sdma = dma_chan_to_sirfsoc_dma(&schan->chan);
int cid = schan->chan.chan_id;
unsigned long flags;
@@ -348,8 +351,9 @@ static int sirfsoc_dma_pause_chan(struct sirfsoc_dma_chan *schan)
return 0;
}
-static int sirfsoc_dma_resume_chan(struct sirfsoc_dma_chan *schan)
+static int sirfsoc_dma_resume_chan(struct dma_chan *chan)
{
+ struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
struct sirfsoc_dma *sdma = dma_chan_to_sirfsoc_dma(&schan->chan);
int cid = schan->chan.chan_id;
unsigned long flags;
@@ -369,30 +373,6 @@ static int sirfsoc_dma_resume_chan(struct sirfsoc_dma_chan *schan)
return 0;
}
-static int sirfsoc_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
- unsigned long arg)
-{
- struct dma_slave_config *config;
- struct sirfsoc_dma_chan *schan = dma_chan_to_sirfsoc_dma_chan(chan);
-
- switch (cmd) {
- case DMA_PAUSE:
- return sirfsoc_dma_pause_chan(schan);
- case DMA_RESUME:
- return sirfsoc_dma_resume_chan(schan);
- case DMA_TERMINATE_ALL:
- return sirfsoc_dma_terminate_all(schan);
- case DMA_SLAVE_CONFIG:
- config = (struct dma_slave_config *)arg;
- return sirfsoc_dma_slave_config(schan, config);
-
- default:
- break;
- }
-
- return -ENOSYS;
-}
-
/* Alloc channel resources */
static int sirfsoc_dma_alloc_chan_resources(struct dma_chan *chan)
{
@@ -739,7 +719,10 @@ static int sirfsoc_dma_probe(struct platform_device *op)
dma->device_alloc_chan_resources = sirfsoc_dma_alloc_chan_resources;
dma->device_free_chan_resources = sirfsoc_dma_free_chan_resources;
dma->device_issue_pending = sirfsoc_dma_issue_pending;
- dma->device_control = sirfsoc_dma_control;
+ dma->device_config = sirfsoc_dma_slave_config;
+ dma->device_pause = sirfsoc_dma_pause_chan;
+ dma->device_resume = sirfsoc_dma_resume_chan;
+ dma->device_terminate_all = sirfsoc_dma_terminate_all;
dma->device_tx_status = sirfsoc_dma_tx_status;
dma->device_prep_interleaved_dma = sirfsoc_dma_prep_interleaved;
dma->device_prep_dma_cyclic = sirfsoc_dma_prep_cyclic;