Most devices are configured for 32-bit DMA addresses.
Setting the mask to 32-bit here removes the need for the
drivers to do it separately.
Signed-off-by: Heikki Krogerus <heikki.kroge...@linux.intel.com>
Cc: "Rafael J. Wysocki" <r...@rjwysocki.net>
---
drivers/acpi/acpi_platform.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 2bf9082..8d099e6 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -16,6 +16,7 @@
#include <linux/err.h>
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include "internal.h"
@@ -102,6 +103,7 @@ struct platform_device *acpi_create_platform_device(struct
acpi_device *adev)
pdevinfo.res = resources;
pdevinfo.num_res = count;
pdevinfo.acpi_node.companion = adev;
+ pdevinfo.dma_mask = DMA_BIT_MASK(32);
pdev = platform_device_register_full(&pdevinfo);
if (IS_ERR(pdev))
dev_err(&adev->dev, "platform device creation failed: %ld\n",
--
2.1.0
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