hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

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>
This commit is contained in:
Maxime Ripard 2014-11-17 14:42:10 +01:00 committed by Vinod Koul
parent 6782af118b
commit 3b5a03a664
1 changed files with 1 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/dma/cppi41.c
View File

@ -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;