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authorMaxime Ripard <maxime.ripard@free-electrons.com>2014-11-17 16:42:28 +0300
committerVinod Koul <vinod.koul@intel.com>2014-12-22 09:59:07 +0300
commit78ea4fe7e7a9395498c45098dc7339fce23fa7e0 (patch)
tree8d686c859f8e1c9764e8b7dfb741f8ecc9656472 /drivers/dma/omap-dma.c
parente22aec0f0072164e7a2243059715c92ff56016c6 (diff)
downloadlinux-78ea4fe7e7a9395498c45098dc7339fce23fa7e0.tar.xz
dmaengine: omap: Split device_control
Split the device_control callback of the TI OMAP 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/omap-dma.c')
-rw-r--r--drivers/dma/omap-dma.c51
1 files changed, 15 insertions, 36 deletions
diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index ca4645c27634..c84fe4a35022 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -948,8 +948,10 @@ static struct dma_async_tx_descriptor *omap_dma_prep_dma_cyclic(
return vchan_tx_prep(&c->vc, &d->vd, flags);
}
-static int omap_dma_slave_config(struct omap_chan *c, struct dma_slave_config *cfg)
+static int omap_dma_slave_config(struct dma_chan *chan, struct dma_slave_config *cfg)
{
+ struct omap_chan *c = to_omap_dma_chan(chan);
+
if (cfg->src_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES ||
cfg->dst_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES)
return -EINVAL;
@@ -959,8 +961,9 @@ static int omap_dma_slave_config(struct omap_chan *c, struct dma_slave_config *c
return 0;
}
-static int omap_dma_terminate_all(struct omap_chan *c)
+static int omap_dma_terminate_all(struct dma_chan *chan)
{
+ struct omap_chan *c = to_omap_dma_chan(chan);
struct omap_dmadev *d = to_omap_dma_dev(c->vc.chan.device);
unsigned long flags;
LIST_HEAD(head);
@@ -996,8 +999,10 @@ static int omap_dma_terminate_all(struct omap_chan *c)
return 0;
}
-static int omap_dma_pause(struct omap_chan *c)
+static int omap_dma_pause(struct dma_chan *chan)
{
+ struct omap_chan *c = to_omap_dma_chan(chan);
+
/* Pause/Resume only allowed with cyclic mode */
if (!c->cyclic)
return -EINVAL;
@@ -1010,8 +1015,10 @@ static int omap_dma_pause(struct omap_chan *c)
return 0;
}
-static int omap_dma_resume(struct omap_chan *c)
+static int omap_dma_resume(struct dma_chan *chan)
{
+ struct omap_chan *c = to_omap_dma_chan(chan);
+
/* Pause/Resume only allowed with cyclic mode */
if (!c->cyclic)
return -EINVAL;
@@ -1029,37 +1036,6 @@ static int omap_dma_resume(struct omap_chan *c)
return 0;
}
-static int omap_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
- unsigned long arg)
-{
- struct omap_chan *c = to_omap_dma_chan(chan);
- int ret;
-
- switch (cmd) {
- case DMA_SLAVE_CONFIG:
- ret = omap_dma_slave_config(c, (struct dma_slave_config *)arg);
- break;
-
- case DMA_TERMINATE_ALL:
- ret = omap_dma_terminate_all(c);
- break;
-
- case DMA_PAUSE:
- ret = omap_dma_pause(c);
- break;
-
- case DMA_RESUME:
- ret = omap_dma_resume(c);
- break;
-
- default:
- ret = -ENXIO;
- break;
- }
-
- return ret;
-}
-
static int omap_dma_chan_init(struct omap_dmadev *od, int dma_sig)
{
struct omap_chan *c;
@@ -1136,7 +1112,10 @@ static int omap_dma_probe(struct platform_device *pdev)
od->ddev.device_issue_pending = omap_dma_issue_pending;
od->ddev.device_prep_slave_sg = omap_dma_prep_slave_sg;
od->ddev.device_prep_dma_cyclic = omap_dma_prep_dma_cyclic;
- od->ddev.device_control = omap_dma_control;
+ od->ddev.device_config = omap_dma_config;
+ od->ddev.device_pause = omap_dma_pause;
+ od->ddev.device_resume = omap_dma_resume;
+ od->ddev.device_terminate_all = omap_dma_terminate_all;
od->ddev.device_slave_caps = omap_dma_device_slave_caps;
od->ddev.dev = &pdev->dev;
INIT_LIST_HEAD(&od->ddev.channels);