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>

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index ca4645c2763430ad651acf2fddedd22bc512a04b..c84fe4a35022bbc9bc559b2bef32f085992cbc45 100644 (file)
--- 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);