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authorSuthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com>2015-10-29 01:50:47 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2015-11-07 03:29:21 +0300
commit1b9863c6aa56d92126ec0d5c42eae25df52b7ca1 (patch)
tree27e1ad46de67d26f193f34eb50bcfaa46859aa3a /include/linux/property.h
parentd764c21c7b1aa5ce982eaa8400517d8004d30267 (diff)
downloadlinux-1b9863c6aa56d92126ec0d5c42eae25df52b7ca1.tar.xz
device property: Introducing enum dev_dma_attr
A device could have one of the following DMA attributes: * DMA not supported * DMA non-coherent * DMA coherent So, this patch introduces enum dev_dma_attribute. This will be used by new APIs introduced in later patches. 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.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/property.h b/include/linux/property.h
index 463de52fe891..8eecf200bae5 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -27,6 +27,12 @@ enum dev_prop_type {
DEV_PROP_MAX,
};
+enum dev_dma_attr {
+ DEV_DMA_NOT_SUPPORTED,
+ DEV_DMA_NON_COHERENT,
+ DEV_DMA_COHERENT,
+};
+
bool device_property_present(struct device *dev, const char *propname);
int device_property_read_u8_array(struct device *dev, const char *propname,
u8 *val, size_t nval);