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| author | Suthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com> | 2015-10-28 15:50:49 -0700 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-11-07 01:29:22 +0100 |
| commit | e5e558644bbb23cad03c586703331b8bcd9e0e6c (patch) | |
| tree | 8e183e85861b37394bfa6a64b2352848325e0b6b /include | |
| parent | b84f196d963c3159329f72ca1913b08679004a43 (diff) | |
| download | linux-e5e558644bbb23cad03c586703331b8bcd9e0e6c.tar.gz linux-e5e558644bbb23cad03c586703331b8bcd9e0e6c.tar.bz2 linux-e5e558644bbb23cad03c586703331b8bcd9e0e6c.zip | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/property.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/property.h b/include/linux/property.h index 8eecf200bae5..7200490b7e6f 100644 --- a/include/linux/property.h +++ b/include/linux/property.h @@ -176,6 +176,10 @@ void device_add_property_set(struct device *dev, struct property_set *pset); bool device_dma_is_coherent(struct device *dev); +bool device_dma_supported(struct device *dev); + +enum dev_dma_attr device_get_dma_attr(struct device *dev); + int device_get_phy_mode(struct device *dev); void *device_get_mac_address(struct device *dev, char *addr, int alen); |