#include <linux/rculist.h>
#include <linux/idr.h>
#include <linux/slab.h>
+#include <linux/acpi.h>
+#include <linux/acpi_dma.h>
#include <linux/of_dma.h>
static DEFINE_MUTEX(dma_list_mutex);
#define dma_device_satisfies_mask(device, mask) \
__dma_device_satisfies_mask((device), &(mask))
static int
-__dma_device_satisfies_mask(struct dma_device *device, dma_cap_mask_t *want)
+__dma_device_satisfies_mask(struct dma_device *device,
+ const dma_cap_mask_t *want)
{
dma_cap_mask_t has;
}
}
-static struct dma_chan *private_candidate(dma_cap_mask_t *mask, struct dma_device *dev,
+static struct dma_chan *private_candidate(const dma_cap_mask_t *mask,
+ struct dma_device *dev,
dma_filter_fn fn, void *fn_param)
{
struct dma_chan *chan;
* @fn: optional callback to disposition available channels
* @fn_param: opaque parameter to pass to dma_filter_fn
*/
-struct dma_chan *__dma_request_channel(dma_cap_mask_t *mask, dma_filter_fn fn, void *fn_param)
+struct dma_chan *__dma_request_channel(const dma_cap_mask_t *mask,
+ dma_filter_fn fn, void *fn_param)
{
struct dma_device *device, *_d;
struct dma_chan *chan = NULL;
if (dev->of_node)
return of_dma_request_slave_channel(dev->of_node, name);
+ /* If device was enumerated by ACPI get slave info from here */
+ if (ACPI_HANDLE(dev))
+ return acpi_dma_request_slave_chan_by_name(dev, name);
+
return NULL;
}
EXPORT_SYMBOL_GPL(dma_request_slave_channel);