Enable DMA support for RSPI on r7s72100 (RZ/A1H).
Signed-off-by: Geert Uytterhoeven <[email protected]>
---
This is untested, due to lack of DMA integration code on r7s72100/genmai.
---
drivers/spi/spi-rspi.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index bec81470dd9c..4bc4138e002b 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -625,6 +625,9 @@ static int rspi_rz_transfer_one(struct spi_master *master,
rspi_rz_receive_init(rspi);
+ if (master->can_dma && __rspi_can_dma(rspi, xfer))
+ return rspi_dma_transfer(rspi, &xfer->tx_sg, &xfer->rx_sg);
+
ret = rspi_pio_transfer(rspi, xfer->tx_buf, xfer->rx_buf, xfer->len);
if (ret < 0)
return ret;
--
1.9.1
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