diff options
| author |   Suthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com> | 2015-10-28 15:50:47 -0700 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-11-07 01:29:21 +0100 |
| commit | 1b9863c6aa56d92126ec0d5c42eae25df52b7ca1 (patch) | |
| tree | 27e1ad46de67d26f193f34eb50bcfaa46859aa3a /include/linux/property.h | |
| parent | ACPI: Honor ACPI _CCA attribute setting (diff) | |
| download | linux-dev-1b9863c6aa56d92126ec0d5c42eae25df52b7ca1.tar.xz linux-dev-1b9863c6aa56d92126ec0d5c42eae25df52b7ca1.zip | |
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.h | 6 |
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); |