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| author |   Greentime Hu <greentime@andestech.com> | 2017-10-24 16:22:35 +0800 |
|---|---|---|
| committer | Greentime Hu <greentime@andestech.com> | 2018-02-22 10:44:32 +0800 |
| commit | 80081b33910f417310921430dbfb5c8bf20e86aa (patch) | |
| tree | 42d8174ee9aa751821a074bddb5b7fff8201de04 /arch/nds32/include/asm | |
| parent | nds32: Device specific operations (diff) | |
| download | linux-dev-80081b33910f417310921430dbfb5c8bf20e86aa.tar.xz linux-dev-80081b33910f417310921430dbfb5c8bf20e86aa.zip | |
nds32: DMA mapping API
This patch adds support for the DMA mapping API. It uses dma_map_ops for
flexibility.
Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/nds32/include/asm')
| -rw-r--r-- | arch/nds32/include/asm/dma-mapping.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/dma-mapping.h b/arch/nds32/include/asm/dma-mapping.h new file mode 100644 index 000000000000..2dd47d245c25 --- /dev/null +++ b/arch/nds32/include/asm/dma-mapping.h @@ -0,0 +1,14 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2005-2017 Andes Technology Corporation + +#ifndef ASMNDS32_DMA_MAPPING_H +#define ASMNDS32_DMA_MAPPING_H + +extern struct dma_map_ops nds32_dma_ops; + +static inline struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus) +{ + return &nds32_dma_ops; +} + +#endif |