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authorSuthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com>2015-10-29 01:50:49 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-11-07 03:29:22 +0300
commite5e558644bbb23cad03c586703331b8bcd9e0e6c (patch)
tree8e183e85861b37394bfa6a64b2352848325e0b6b /include/linux/property.h
parentb84f196d963c3159329f72ca1913b08679004a43 (diff)
downloadlinux-e5e558644bbb23cad03c586703331b8bcd9e0e6c.tar.xz
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/linux/property.h')
-rw-r--r--include/linux/property.h4
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);