summaryrefslogtreecommitdiffstats
path: root/drivers/spi/spi-rspi.c
diff options
context:
space:
mode:
authorGeert Uytterhoeven <geert+renesas@glider.be>2014-06-02 15:38:18 +0200
committerMark Brown <broonie@linaro.org>2014-06-02 15:49:35 +0100
commite7fb921d9f62df05240ad1a74b5a0f623e503c9c (patch)
treea8591e5c0c6e2cb8cb63aa97c1a824b688dcde71 /drivers/spi/spi-rspi.c
parent4f12b5e529e4ff274eb478ec1c2ef41358ed9577 (diff)
downloadlinux-stable-e7fb921d9f62df05240ad1a74b5a0f623e503c9c.tar.gz
linux-stable-e7fb921d9f62df05240ad1a74b5a0f623e503c9c.tar.bz2
linux-stable-e7fb921d9f62df05240ad1a74b5a0f623e503c9c.zip
spi: rspi: Add DMA support for RSPI on RZ/A1H
Enable DMA support for RSPI on r7s72100 (RZ/A1H). Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'drivers/spi/spi-rspi.c')
-rw-r--r--drivers/spi/spi-rspi.c3
1 files changed, 3 insertions, 0 deletions
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;