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authorIra Snyder <iws@ovro.caltech.edu>2009-09-08 17:53:04 -0700
committerDan Williams <dan.j.williams@intel.com>2009-09-08 17:53:04 -0700
commite6c7ecb64e08ef346cb7062b4a5421f00bc602bd (patch)
tree73424d223391302a9a16df65378d78f25fd05929 /drivers/dma/fsldma.h
parent162b96e63e518aa6ff029ce23de12d7f027483bf (diff)
downloadlinux-e6c7ecb64e08ef346cb7062b4a5421f00bc602bd.tar.bz2
fsldma: split apart external pause and request count features
When using the Freescale DMA controller in external control mode, both the request count and external pause bits need to be setup correctly. This was being done with the same function. The 83xx controller lacks the external pause feature, but has a similar feature called external start. This feature requires that the request count bits be setup correctly. Split the function into two parts, to make it possible to use the external start feature on the 83xx controller. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/dma/fsldma.h')
-rw-r--r--drivers/dma/fsldma.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h
index 4493afed53f0..0df14cbb8ca3 100644
--- a/drivers/dma/fsldma.h
+++ b/drivers/dma/fsldma.h
@@ -144,10 +144,11 @@ struct fsl_dma_chan {
struct tasklet_struct tasklet;
u32 feature;
- void (*toggle_ext_pause)(struct fsl_dma_chan *fsl_chan, int size);
+ void (*toggle_ext_pause)(struct fsl_dma_chan *fsl_chan, int enable);
void (*toggle_ext_start)(struct fsl_dma_chan *fsl_chan, int enable);
void (*set_src_loop_size)(struct fsl_dma_chan *fsl_chan, int size);
void (*set_dest_loop_size)(struct fsl_dma_chan *fsl_chan, int size);
+ void (*set_request_count)(struct fsl_dma_chan *fsl_chan, int size);
};
#define to_fsl_chan(chan) container_of(chan, struct fsl_dma_chan, common)