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authorGuennadi Liakhovetski <g.liakhovetski@gmx.de>2012-07-05 14:29:41 +0400
committerVinod Koul <vinod.koul@linux.intel.com>2012-07-20 09:53:45 +0400
commitc2cdb7e4d16394fc51dc5c2c5b3e7c3733bdfaac (patch)
tree1e98394a20b33ed09d55b5e37a1c1ed2784721d6 /include/linux/sh_dma.h
parentecf90fbbdc66cde6f5fa25d88541112b9baac459 (diff)
downloadlinux-c2cdb7e4d16394fc51dc5c2c5b3e7c3733bdfaac.tar.xz
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.h8
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 {