diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-dw-mid.c | 10 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.c | 1 | ||||
| -rw-r--r-- | drivers/spi/spi-dw.h | 1 |
3 files changed, 5 insertions, 7 deletions
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index a39bde9996a4..b1710132b7b2 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -133,10 +133,10 @@ static bool mid_spi_can_dma(struct spi_controller *master, return xfer->len > dws->fifo_len; } -static enum dma_slave_buswidth convert_dma_width(u32 dma_width) { - if (dma_width == 1) +static enum dma_slave_buswidth convert_dma_width(u8 n_bytes) { + if (n_bytes == 1) return DMA_SLAVE_BUSWIDTH_1_BYTE; - else if (dma_width == 2) + else if (n_bytes == 2) return DMA_SLAVE_BUSWIDTH_2_BYTES; return DMA_SLAVE_BUSWIDTH_UNDEFINED; @@ -172,7 +172,7 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws, txconf.dst_addr = dws->dma_addr; txconf.dst_maxburst = 16; txconf.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - txconf.dst_addr_width = convert_dma_width(dws->dma_width); + txconf.dst_addr_width = convert_dma_width(dws->n_bytes); txconf.device_fc = false; dmaengine_slave_config(dws->txchan, &txconf); @@ -221,7 +221,7 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws, rxconf.src_addr = dws->dma_addr; rxconf.src_maxburst = 16; rxconf.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES; - rxconf.src_addr_width = convert_dma_width(dws->dma_width); + rxconf.src_addr_width = convert_dma_width(dws->n_bytes); rxconf.device_fc = false; dmaengine_slave_config(dws->rxchan, &rxconf); diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 450c8218caeb..1edb8cdd11ee 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -353,7 +353,6 @@ static int dw_spi_transfer_one(struct spi_controller *master, } dws->n_bytes = DIV_ROUND_UP(transfer->bits_per_word, BITS_PER_BYTE); - dws->dma_width = DIV_ROUND_UP(transfer->bits_per_word, BITS_PER_BYTE); cr0 = dws->update_cr0(master, spi, transfer); dw_writel(dws, DW_SPI_CTRLR0, cr0); diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 0aa3a4be1046..79782e93eb12 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -136,7 +136,6 @@ struct dw_spi { void *rx_end; int dma_mapped; u8 n_bytes; /* current is a 1/2 bytes op */ - u32 dma_width; irqreturn_t (*transfer_handler)(struct dw_spi *dws); u32 current_freq; /* frequency in hz */ |