diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-rspi.c | 22 |
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index 3dea8adfdcf..bfa5e7e5df5 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -463,13 +463,13 @@ static void rspi_dma_complete(void *arg) wake_up_interruptible(&rspi->wait); } -static int rspi_send_dma(struct rspi_data *rspi, struct spi_transfer *t) +static int rspi_send_dma(struct rspi_data *rspi, struct sg_table *tx) { struct dma_async_tx_descriptor *desc; int ret; - desc = dmaengine_prep_slave_sg(rspi->master->dma_tx, t->tx_sg.sgl, - t->tx_sg.nents, DMA_TO_DEVICE, + desc = dmaengine_prep_slave_sg(rspi->master->dma_tx, tx->sgl, + tx->nents, DMA_TO_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc) return -EIO; @@ -530,21 +530,22 @@ static void qspi_receive_init(const struct rspi_data *rspi) rspi_write8(rspi, 0, QSPI_SPBFCR); } -static int rspi_send_receive_dma(struct rspi_data *rspi, struct spi_transfer *t) +static int rspi_send_receive_dma(struct rspi_data *rspi, struct sg_table *tx, + struct sg_table *rx) { struct dma_async_tx_descriptor *desc_tx, *desc_rx; int ret; /* prepare transmit transfer */ - desc_tx = dmaengine_prep_slave_sg(rspi->master->dma_tx, t->tx_sg.sgl, - t->tx_sg.nents, DMA_TO_DEVICE, + desc_tx = dmaengine_prep_slave_sg(rspi->master->dma_tx, tx->sgl, + tx->nents, DMA_TO_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc_tx) return -EIO; /* prepare receive transfer */ - desc_rx = dmaengine_prep_slave_sg(rspi->master->dma_rx, t->rx_sg.sgl, - t->rx_sg.nents, DMA_FROM_DEVICE, + desc_rx = dmaengine_prep_slave_sg(rspi->master->dma_rx, rx->sgl, + rx->nents, DMA_FROM_DEVICE, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); if (!desc_rx) return -EIO; @@ -616,9 +617,10 @@ static int rspi_transfer_one(struct spi_master *master, struct spi_device *spi, if (master->can_dma && __rspi_can_dma(rspi, xfer)) { if (xfer->rx_buf) - return rspi_send_receive_dma(rspi, xfer); + return rspi_send_receive_dma(rspi, &xfer->tx_sg, + &xfer->rx_sg); else - return rspi_send_dma(rspi, xfer); + return rspi_send_dma(rspi, &xfer->tx_sg); } ret = rspi_pio_transfer(rspi, xfer->tx_buf, xfer->rx_buf, xfer->len); |