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| author | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2014-04-24 11:30:04 -0400 |
|---|---|---|
| committer | Santosh Shilimkar <santosh.shilimkar@ti.com> | 2014-05-07 09:21:21 -0400 |
| commit | 591c1ee465ce5372385dbc41e7d3e36cbb477bd8 (patch) | |
| tree | 9a1a70d862e00f8431956479eb15899565f0f6bd /arch/arm/include/asm/dma-mapping.h | |
| parent | 92ea637edea36e58236e3124f199161da6f5c5de (diff) | |
| download | linux-0-day-591c1ee465ce5372385dbc41e7d3e36cbb477bd8.tar.gz linux-0-day-591c1ee465ce5372385dbc41e7d3e36cbb477bd8.tar.xz | |
of: configure the platform device dma parameters
Retrieve DMA configuration from DT and setup platform device's DMA
parameters. The DMA configuration in DT has to be specified using
"dma-ranges" and "dma-coherent" properties if supported.
We setup dma_pfn_offset using "dma-ranges" and dma_coherent_ops
using "dma-coherent" device tree properties.
The set_arch_dma_coherent_ops macro has to be defined by arch if
it supports coherent dma_ops. Otherwise, set_arch_dma_coherent_ops() is
declared as nop.
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: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Diffstat (limited to 'arch/arm/include/asm/dma-mapping.h')
0 files changed, 0 insertions, 0 deletions