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author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2014-04-24 19:30:03 +0400 |
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committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2014-05-06 02:11:13 +0400 |
commit | 92ea637edea36e58236e3124f199161da6f5c5de (patch) | |
tree | 3d448091313a8f872a8e6bb7498c447350d801b8 /include/linux/dma-mapping.h | |
parent | 18308c94723e162ed121942335bc186e66820a7a (diff) | |
download | linux-92ea637edea36e58236e3124f199161da6f5c5de.tar.xz |
of: introduce of_dma_is_coherent() helper
The of_dma_is_coherent() helper parses the given DT device
node to see if the "dma-coherent" property is supported and
returns true or false accordingly.
If the arch is always coherent or always noncoherent, then the default
DMA ops has to be specified accordingly.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Diffstat (limited to 'include/linux/dma-mapping.h')
0 files changed, 0 insertions, 0 deletions