From d9071b7e9fc474e474e3b865428a8d30d88daaf4 Mon Sep 17 00:00:00 2001 From: Emil Renner Berthing Date: Wed, 10 Oct 2018 11:00:37 +0200 Subject: spi: rockchip: directly use direction constants 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 Signed-off-by: Mark Brown --- drivers/spi/spi-rockchip.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c index 99943aa71bc1..6fa809da61dd 100644 --- a/drivers/spi/spi-rockchip.c +++ b/drivers/spi/spi-rockchip.c @@ -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; -- cgit v1.2.3-59-g8ed1b