diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dma/edma.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/dma/edma.h b/include/linux/dma/edma.h index 17cbe7ce55aa..2ce9d2d49aef 100644 --- a/include/linux/dma/edma.h +++ b/include/linux/dma/edma.h @@ -57,9 +57,16 @@ enum dw_edma_map_format { /** * enum dw_edma_chip_flags - Flags specific to an eDMA chip * @DW_EDMA_CHIP_LOCAL: eDMA is used locally by an endpoint + * @DW_EDMA_CHIP_PARTIAL: Only channels described by this instance are + * owned by this driver. Controller-wide state + * must be preserved, and layouts with shared + * direction-wide registers must only be shared at + * direction granularity. Layouts with per-channel + * registers may be shared at channel granularity. */ enum dw_edma_chip_flags { DW_EDMA_CHIP_LOCAL = BIT(0), + DW_EDMA_CHIP_PARTIAL = BIT(1), }; /** |