dmaengine: ep93xx: Split device_control

Split the device_control callback of the Cirrus Logic EP93xx 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/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 7650470..a8bcbb5 100644 (file)
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -1164,13 +1164,14 @@ fail:
 
 /**
  * ep93xx_dma_terminate_all - terminate all transactions
- * @edmac: channel
+ * @chan: channel
  *
  * Stops all DMA transactions. All descriptors are put back to the
  * @edmac->free_list and callbacks are _not_ called.
  */
-static int ep93xx_dma_terminate_all(struct ep93xx_dma_chan *edmac)
+static int ep93xx_dma_terminate_all(struct dma_chan *chan)
 {
+       struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
        struct ep93xx_dma_desc *desc, *_d;
        unsigned long flags;
        LIST_HEAD(list);
@@ -1194,9 +1195,10 @@ static int ep93xx_dma_terminate_all(struct ep93xx_dma_chan *edmac)
        return 0;
 }
 
-static int ep93xx_dma_slave_config(struct ep93xx_dma_chan *edmac,
+static int ep93xx_dma_slave_config(struct dma_chan *chan,
                                   struct dma_slave_config *config)
 {
+       struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
        enum dma_slave_buswidth width;
        unsigned long flags;
        u32 addr, ctrl;
@@ -1241,36 +1243,6 @@ static int ep93xx_dma_slave_config(struct ep93xx_dma_chan *edmac,
        return 0;
 }
 
-/**
- * ep93xx_dma_control - manipulate all pending operations on a channel
- * @chan: channel
- * @cmd: control command to perform
- * @arg: optional argument
- *
- * Controls the channel. Function returns %0 in case of success or negative
- * error in case of failure.
- */
-static int ep93xx_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
-                             unsigned long arg)
-{
-       struct ep93xx_dma_chan *edmac = to_ep93xx_dma_chan(chan);
-       struct dma_slave_config *config;
-
-       switch (cmd) {
-       case DMA_TERMINATE_ALL:
-               return ep93xx_dma_terminate_all(edmac);
-
-       case DMA_SLAVE_CONFIG:
-               config = (struct dma_slave_config *)arg;
-               return ep93xx_dma_slave_config(edmac, config);
-
-       default:
-               break;
-       }
-
-       return -ENOSYS;
-}
-
 /**
  * ep93xx_dma_tx_status - check if a transaction is completed
  * @chan: channel
@@ -1352,7 +1324,8 @@ static int __init ep93xx_dma_probe(struct platform_device *pdev)
        dma_dev->device_free_chan_resources = ep93xx_dma_free_chan_resources;
        dma_dev->device_prep_slave_sg = ep93xx_dma_prep_slave_sg;
        dma_dev->device_prep_dma_cyclic = ep93xx_dma_prep_dma_cyclic;
-       dma_dev->device_control = ep93xx_dma_control;
+       dma_dev->device_config = ep93xx_dma_slave_config;
+       dma_dev->device_terminate_all = ep93xx_dma_terminate_all;
        dma_dev->device_issue_pending = ep93xx_dma_issue_pending;
        dma_dev->device_tx_status = ep93xx_dma_tx_status;