diff options
Diffstat (limited to 'drivers/dma/dw_dmac.c')
| -rw-r--r-- | drivers/dma/dw_dmac.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index e5d97bf9264a..711ebe954f5b 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c | |||
| @@ -47,14 +47,13 @@ | |||
| 47 | 47 | ||
| 48 | /* | 48 | /* |
| 49 | * This is configuration-dependent and usually a funny size like 4095. | 49 | * This is configuration-dependent and usually a funny size like 4095. |
| 50 | * Let's round it down to the nearest power of two. | ||
| 51 | * | 50 | * |
| 52 | * Note that this is a transfer count, i.e. if we transfer 32-bit | 51 | * Note that this is a transfer count, i.e. if we transfer 32-bit |
| 53 | * words, we can do 8192 bytes per descriptor. | 52 | * words, we can do 16380 bytes per descriptor. |
| 54 | * | 53 | * |
| 55 | * This parameter is also system-specific. | 54 | * This parameter is also system-specific. |
| 56 | */ | 55 | */ |
| 57 | #define DWC_MAX_COUNT 2048U | 56 | #define DWC_MAX_COUNT 4095U |
| 58 | 57 | ||
| 59 | /* | 58 | /* |
| 60 | * Number of descriptors to allocate for each channel. This should be | 59 | * Number of descriptors to allocate for each channel. This should be |