diff options
Diffstat (limited to 'include/linux/dmaengine.h')
| -rw-r--r-- | include/linux/dmaengine.h | 14 |
1 files changed, 5 insertions, 9 deletions
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index c5c92d59e531..8300fb87b84a 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h | |||
| @@ -341,15 +341,11 @@ enum dma_slave_buswidth { | |||
| 341 | * and this struct will then be passed in as an argument to the | 341 | * and this struct will then be passed in as an argument to the |
| 342 | * DMA engine device_control() function. | 342 | * DMA engine device_control() function. |
| 343 | * | 343 | * |
| 344 | * The rationale for adding configuration information to this struct | 344 | * The rationale for adding configuration information to this struct is as |
| 345 | * is as follows: if it is likely that most DMA slave controllers in | 345 | * follows: if it is likely that more than one DMA slave controllers in |
| 346 | * the world will support the configuration option, then make it | 346 | * the world will support the configuration option, then make it generic. |
| 347 | * generic. If not: if it is fixed so that it be sent in static from | 347 | * If not: if it is fixed so that it be sent in static from the platform |
| 348 | * the platform data, then prefer to do that. Else, if it is neither | 348 | * data, then prefer to do that. |
| 349 | * fixed at runtime, nor generic enough (such as bus mastership on | ||
| 350 | * some CPU family and whatnot) then create a custom slave config | ||
| 351 | * struct and pass that, then make this config a member of that | ||
| 352 | * struct, if applicable. | ||
| 353 | */ | 349 | */ |
| 354 | struct dma_slave_config { | 350 | struct dma_slave_config { |
| 355 | enum dma_transfer_direction direction; | 351 | enum dma_transfer_direction direction; |
