drivers: dma-contiguous: clean source code and prepare for device tree
authorMarek Szyprowski <m.szyprowski@samsung.com>
Mon, 29 Jul 2013 12:31:45 +0000 (14:31 +0200)
committerMarek Szyprowski <m.szyprowski@samsung.com>
Tue, 27 Aug 2013 07:18:29 +0000 (09:18 +0200)
commita2547380393ac82c659b40182b0da8d05a8365f3
tree45ff811ef870825743dd88eb14128003a9e3e375
parentf7d8f1e9cb44e6ee1602586dbf7f2bed637a2b4e
drivers: dma-contiguous: clean source code and prepare for device tree

This patch cleans the initialization of dma contiguous framework. The
all-in-one dma_declare_contiguous() function is now separated into
dma_contiguous_reserve_area() which only steals the the memory from
memblock allocator and dma_contiguous_add_device() function, which
assigns given device to the specified reserved memory area. This improves
the flexibility in defining contiguous memory areas and assigning device
to them, because now it is possible to assign more than one device to
the given contiguous memory area. Such split in initialization procedure
is also required for upcoming device tree support.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
arch/arm/include/asm/dma-contiguous.h
arch/x86/include/asm/dma-contiguous.h
drivers/base/dma-contiguous.c
include/asm-generic/dma-contiguous.h [deleted file]
include/linux/device.h
include/linux/dma-contiguous.h