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| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2014-06-02 15:38:18 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-06-02 15:49:35 +0100 |
| commit | e7fb921d9f62df05240ad1a74b5a0f623e503c9c (patch) | |
| tree | a8591e5c0c6e2cb8cb63aa97c1a824b688dcde71 /drivers/spi/spi-rspi.c | |
| parent | 4f12b5e529e4ff274eb478ec1c2ef41358ed9577 (diff) | |
| download | linux-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.c | 3 |
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; |