提交 4e82f5dd 编写于 作者: A Andy Shevchenko 提交者: Vinod Koul

dmaengine: call acpi_dma_request_slave_channel as well

The slave device could be enumerated by ACPI. In that case the
dma_request_slave_channel should use the acpi_dma_request_slave_channel()
helper.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: NVinod Koul <vinod.koul@intel.com>
上级 1b2e98bc
......@@ -62,6 +62,8 @@
#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);
......@@ -564,6 +566,10 @@ struct dma_chan *dma_request_slave_channel(struct device *dev, char *name)
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);
......
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