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| author | Ira Snyder <iws@ovro.caltech.edu> | 2009-09-09 02:53:04 +0200 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2009-09-09 02:53:04 +0200 |
| commit | e6c7ecb64e08ef346cb7062b4a5421f00bc602bd (patch) | |
| tree | 73424d223391302a9a16df65378d78f25fd05929 /drivers/dma/fsldma.h | |
| parent | ioat2,3: cacheline align software descriptor allocations (diff) | |
| download | linux-e6c7ecb64e08ef346cb7062b4a5421f00bc602bd.tar.xz linux-e6c7ecb64e08ef346cb7062b4a5421f00bc602bd.zip | |
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.h | 3 |
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) |