spi: spi-atmel: Use correct enum for DMA transfer direction
Use enum dma_transfer_direction as required by the functions
dmaengine_prep_slave_(sg|single)() instead of enum dma_data_direction.
This won't change behavior in practice as the enum values are
equivalent.
This fixes two warnings when building with clang:
drivers/spi/spi-atmel.c:771:12: warning: implicit conversion from enumeration
type 'enum dma_data_direction' to different enumeration type
'enum dma_transfer_direction'
[-Wenum-conversion]
DMA_FROM_DEVICE,
^~~~~~~~~~~~~~~
...
Signed-off-by: Stefan Agner <stefan@agner.ch>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index b7936f8..3f890d1 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -768,14 +768,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
rxdesc = dmaengine_prep_slave_single(rxchan,
as->dma_addr_rx_bbuf,
xfer->len,
- DMA_FROM_DEVICE,
+ DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
} else {
rxdesc = dmaengine_prep_slave_sg(rxchan,
xfer->rx_sg.sgl,
xfer->rx_sg.nents,
- DMA_FROM_DEVICE,
+ DMA_DEV_TO_MEM,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
}
@@ -787,14 +787,14 @@ static int atmel_spi_next_xfer_dma_submit(struct spi_master *master,
memcpy(as->addr_tx_bbuf, xfer->tx_buf, xfer->len);
txdesc = dmaengine_prep_slave_single(txchan,
as->dma_addr_tx_bbuf,
- xfer->len, DMA_TO_DEVICE,
+ xfer->len, DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
} else {
txdesc = dmaengine_prep_slave_sg(txchan,
xfer->tx_sg.sgl,
xfer->tx_sg.nents,
- DMA_TO_DEVICE,
+ DMA_MEM_TO_DEV,
DMA_PREP_INTERRUPT |
DMA_CTRL_ACK);
}