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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>
This commit is contained in:
Ricardo Ribalda Delgado 2015-01-28 13:23:50 +01:00 committed by Mark Brown
parent d79b2d073a
commit 17aaaa8032
1 changed files with 9 additions and 9 deletions
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18
drivers/spi/spi-xilinx.c
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@ -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);