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device property: Introduces device_dma_is_coherent()

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Currently, device drivers, which support both OF and ACPI,
need to call two separate APIs, of_dma_is_coherent() and
acpi_dma_is_coherent()) to determine device coherency attribute.

This patch simplifies this process by introducing a new device
property API, device_dma_is_coherent(), which calls the appropriate
interface based on the booting architecture.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Suthikulpanit, Suravee
2015-06-10 11:08:54 -05:00
committed by Rafael J. Wysocki
parent b6197b93fa
commit 05ca556003
2 changed files with 16 additions and 0 deletions
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include/linux/property.h
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@@ -164,4 +164,6 @@ struct property_set {
void device_add_property_set(struct device *dev, struct property_set *pset);
bool device_dma_is_coherent(struct device *dev);
#endif /* _LINUX_PROPERTY_H_ */