tree 8e183e85861b37394bfa6a64b2352848325e0b6b
parent b84f196d963c3159329f72ca1913b08679004a43
author Suthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com> 1446072649 -0700
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1446856162 +0100

device property: Adding DMA Attribute APIs for Generic Devices

The function device_dma_is_coherent() does not sufficiently
communicate device DMA attributes. Instead, this patch introduces
device_get_dma_attr(), which returns enum dev_dma_attr.
It replaces the acpi_check_dma(), which will be removed in
subsequent patch.

This also provides a convenient function, device_dma_supported(),
to check DMA support of the specified device.

Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>