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authorMaxime Ripard <maxime.ripard@free-electrons.com>2014-11-17 14:42:10 +0100
committerVinod Koul <vinod.koul@intel.com>2014-12-22 07:58:57 +0100
commit3b5a03a6646534f939e3a52c0c6ed1a6546c5104 (patch)
tree903fefac41ec627a6c5931c392ed321f163a15e6 /drivers/dma/cppi41.c
parentdmaengine: coh901318: Split device_control (diff)
downloadlinux-3b5a03a6646534f939e3a52c0c6ed1a6546c5104.tar.xz
linux-3b5a03a6646534f939e3a52c0c6ed1a6546c5104.zip
dmaengine: cppi41: Split device_control
Split the device_control callback of the TI CPPI41 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/cppi41.c')
-rw-r--r--drivers/dma/cppi41.c30
1 files changed, 1 insertions, 29 deletions
diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index b743adf56465..512cb8e2805e 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -525,12 +525,6 @@ static struct dma_async_tx_descriptor *cppi41_dma_prep_slave_sg(
return &c->txd;
}
-static int cpp41_cfg_chan(struct cppi41_channel *c,
- struct dma_slave_config *cfg)
-{
- return 0;
-}
-
static void cppi41_compute_td_desc(struct cppi41_desc *d)
{
d->pd0 = DESC_TYPE_TEARD << DESC_TYPE;
@@ -647,28 +641,6 @@ static int cppi41_stop_chan(struct dma_chan *chan)
return 0;
}
-static int cppi41_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
- unsigned long arg)
-{
- struct cppi41_channel *c = to_cpp41_chan(chan);
- int ret;
-
- switch (cmd) {
- case DMA_SLAVE_CONFIG:
- ret = cpp41_cfg_chan(c, (struct dma_slave_config *) arg);
- break;
-
- case DMA_TERMINATE_ALL:
- ret = cppi41_stop_chan(chan);
- break;
-
- default:
- ret = -ENXIO;
- break;
- }
- return ret;
-}
-
static void cleanup_chans(struct cppi41_dd *cdd)
{
while (!list_empty(&cdd->ddev.channels)) {
@@ -953,7 +925,7 @@ static int cppi41_dma_probe(struct platform_device *pdev)
cdd->ddev.device_tx_status = cppi41_dma_tx_status;
cdd->ddev.device_issue_pending = cppi41_dma_issue_pending;
cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg;
- cdd->ddev.device_control = cppi41_dma_control;
+ cdd->ddev.device_terminate_all = cppi41_stop_chan;
cdd->ddev.dev = dev;
INIT_LIST_HEAD(&cdd->ddev.channels);
cpp41_dma_info.dma_cap = cdd->ddev.cap_mask;