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| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2012-07-05 12:29:41 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@linux.intel.com> | 2012-07-20 11:23:45 +0530 |
| commit | c2cdb7e4d16394fc51dc5c2c5b3e7c3733bdfaac (patch) | |
| tree | 1e98394a20b33ed09d55b5e37a1c1ed2784721d6 /include/linux/sh_dma.h | |
| parent | ecf90fbbdc66cde6f5fa25d88541112b9baac459 (diff) | |
| download | lwn-c2cdb7e4d16394fc51dc5c2c5b3e7c3733bdfaac.tar.gz lwn-c2cdb7e4d16394fc51dc5c2c5b3e7c3733bdfaac.zip | |
dma: sh: use an integer slave ID to improve API compatibility
Initially struct shdma_slave has been introduced with the only member - an
unsigned slave ID - to describe common properties of DMA slaves in an
extensible way. However, experience shows, that a slave ID is indeed the
only parameter, needed to identify DMA slaves. This is also, what is used
by the core dmaengine API in struct dma_slave_config. We switch to using
the slave_id directly, instead of passing a pointer to struct shdma_slave
to improve compatibility with the core. We also make the slave_id signed
for easier error checking.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'include/linux/sh_dma.h')
| -rw-r--r-- | include/linux/sh_dma.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index a79f10a32243..4e83f3e034f3 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -27,10 +27,10 @@ struct sh_dmae_slave { * a certain peripheral */ struct sh_dmae_slave_config { - unsigned int slave_id; - dma_addr_t addr; - u32 chcr; - char mid_rid; + int slave_id; + dma_addr_t addr; + u32 chcr; + char mid_rid; }; struct sh_dmae_channel { |