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>

diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 8ed306e..b16fccf 100644 (file)
--- 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);