diff options
| author | Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com> | 2015-01-28 15:23:50 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-01-28 22:42:43 +0300 |
| commit | 17aaaa80327107843f8ea6d2629ab5f733fc01aa (patch) | |
| tree | d589e3bfc876315f75156948d3b14c59335a30c2 /drivers/spi | |
| parent | d79b2d073ae4eeb79ce1aa27c96fe9e3f7582e97 (diff) | |
| download | linux-17aaaa80327107843f8ea6d2629ab5f733fc01aa.tar.xz | |
spi/xilinx: Convert bits_per_word in bytes_per_word
Simplify the code by using the unit used on most of the code logic.
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi-xilinx.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c index 8ed306e44df7..b16fccfe69bf 100644 --- a/drivers/spi/spi-xilinx.c +++ b/drivers/spi/spi-xilinx.c @@ -87,7 +87,7 @@ struct xilinx_spi { u8 *rx_ptr; /* pointer in the Tx buffer */ const u8 *tx_ptr; /* pointer in the Rx buffer */ int remaining_words; /* the number of words left to transfer */ - u8 bits_per_word; + u8 bytes_per_word; int buffer_size; /* buffer size in words */ u32 cs_inactive; /* Level of the CS pins when inactive*/ unsigned int (*read_fn)(void __iomem *); @@ -121,7 +121,7 @@ static void xilinx_spi_tx(struct xilinx_spi *xspi) return; } xspi->write_fn(*(u32 *)(xspi->tx_ptr), xspi->regs + XSPI_TXD_OFFSET); - xspi->tx_ptr += xspi->bits_per_word / 8; + xspi->tx_ptr += xspi->bytes_per_word; } static void xilinx_spi_rx(struct xilinx_spi *xspi) @@ -131,19 +131,19 @@ static void xilinx_spi_rx(struct xilinx_spi *xspi) if (!xspi->rx_ptr) return; - switch (xspi->bits_per_word) { - case 8: + switch (xspi->bytes_per_word) { + case 1: *(u8 *)(xspi->rx_ptr) = data; break; - case 16: + case 2: *(u16 *)(xspi->rx_ptr) = data; break; - case 32: + case 4: *(u32 *)(xspi->rx_ptr) = data; break; } - xspi->rx_ptr += xspi->bits_per_word / 8; + xspi->rx_ptr += xspi->bytes_per_word; } static void xspi_init_hw(struct xilinx_spi *xspi) @@ -246,7 +246,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t) xspi->tx_ptr = t->tx_buf; xspi->rx_ptr = t->rx_buf; - xspi->remaining_words = (t->len * 8) / xspi->bits_per_word; + xspi->remaining_words = t->len / xspi->bytes_per_word; reinit_completion(&xspi->done); while (xspi->remaining_words) { @@ -410,7 +410,7 @@ static int xilinx_spi_probe(struct platform_device *pdev) } master->bits_per_word_mask = SPI_BPW_MASK(bits_per_word); - xspi->bits_per_word = bits_per_word; + xspi->bytes_per_word = bits_per_word / 8; xspi->buffer_size = xilinx_spi_find_buffer_size(xspi); xspi->irq = platform_get_irq(pdev, 0); |