diff options
Diffstat (limited to 'drivers/spi/internals.h')
| -rw-r--r-- | drivers/spi/internals.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/spi/internals.h b/drivers/spi/internals.h index 4a28a8395552..1f459b895891 100644 --- a/drivers/spi/internals.h +++ b/drivers/spi/internals.h @@ -40,4 +40,12 @@ static inline void spi_unmap_buf(struct spi_controller *ctlr, } #endif /* CONFIG_HAS_DMA */ +static inline bool spi_xfer_is_dma_mapped(struct spi_controller *ctlr, + struct spi_device *spi, + struct spi_transfer *xfer) +{ + return ctlr->can_dma && ctlr->can_dma(ctlr, spi, xfer) && + (xfer->tx_sg_mapped || xfer->rx_sg_mapped); +} + #endif /* __LINUX_SPI_INTERNALS_H */ |