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spi: rockchip: directly use direction constants

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The dma direction for the tx and rx dma channels never
change, so just use the constants directly rather
than storing them in device data.

Signed-off-by: Emil Renner Berthing <kernel@esmil.dk>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Emil Renner Berthing 2018-10-10 11:00:37 +02:00 committed by Mark Brown
parent f340b92051
commit d9071b7e9f
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 4 additions and 7 deletions
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11
drivers/spi/spi-rockchip.c
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@ -164,7 +164,6 @@ enum rockchip_ssi_type {
struct rockchip_spi_dma_data {
struct dma_chan *ch;
enum dma_transfer_direction direction;
dma_addr_t addr;
};
@ -451,7 +450,7 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
rxdesc = NULL;
if (rs->rx) {
rxconf.direction = rs->dma_rx.direction;
rxconf.direction = DMA_DEV_TO_MEM;
rxconf.src_addr = rs->dma_rx.addr;
rxconf.src_addr_width = rs->n_bytes;
rxconf.src_maxburst = 1;
@ -460,7 +459,7 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
rxdesc = dmaengine_prep_slave_sg(
rs->dma_rx.ch,
rs->rx_sg.sgl, rs->rx_sg.nents,
rs->dma_rx.direction, DMA_PREP_INTERRUPT);
DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT);
if (!rxdesc)
return -EINVAL;
@ -470,7 +469,7 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
txdesc = NULL;
if (rs->tx) {
txconf.direction = rs->dma_tx.direction;
txconf.direction = DMA_MEM_TO_DEV;
txconf.dst_addr = rs->dma_tx.addr;
txconf.dst_addr_width = rs->n_bytes;
txconf.dst_maxburst = rs->fifo_len / 2;
@ -479,7 +478,7 @@ static int rockchip_spi_prepare_dma(struct rockchip_spi *rs)
txdesc = dmaengine_prep_slave_sg(
rs->dma_tx.ch,
rs->tx_sg.sgl, rs->tx_sg.nents,
rs->dma_tx.direction, DMA_PREP_INTERRUPT);
DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT);
if (!txdesc) {
if (rxdesc)
dmaengine_terminate_sync(rs->dma_rx.ch);
@ -775,8 +774,6 @@ static int rockchip_spi_probe(struct platform_device *pdev)
if (rs->dma_tx.ch && rs->dma_rx.ch) {
rs->dma_tx.addr = (dma_addr_t)(mem->start + ROCKCHIP_SPI_TXDR);
rs->dma_rx.addr = (dma_addr_t)(mem->start + ROCKCHIP_SPI_RXDR);
rs->dma_tx.direction = DMA_MEM_TO_DEV;
rs->dma_rx.direction = DMA_DEV_TO_MEM;
master->can_dma = rockchip_spi_can_dma;
master->dma_tx = rs->dma_tx.ch;