spi: mxc_spi: Use DIV_ROUND_UP at appropriate places

This change slightly improves readability.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>

diff --git a/drivers/spi/mxc_spi.c b/drivers/spi/mxc_spi.c
index 5bed858787f610a9c9a46bb2214665a51d60a9e9..2ea322833c29cb30275313d06292ae6292d3ffcd 100644 (file)
--- a/drivers/spi/mxc_spi.c
+++ b/drivers/spi/mxc_spi.c
@@ -224,7 +224,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
        const u8 *dout, u8 *din, unsigned long flags)
 {
        struct mxc_spi_slave *mxcs = to_mxc_spi_slave(slave);
-       int nbytes = (bitlen + 7) / 8;
+       int nbytes = DIV_ROUND_UP(bitlen, 8);
        u32 data, cnt, i;
        struct cspi_regs *regs = (struct cspi_regs *)mxcs->base;
 
@@ -294,7 +294,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
        /* Transfer completed, clear any pending request */
        reg_write(&regs->stat, MXC_CSPICTRL_TC | MXC_CSPICTRL_RXOVF);
 
-       nbytes = (bitlen + 7) / 8;
+       nbytes = DIV_ROUND_UP(bitlen, 8);
 
        cnt = nbytes % 32;
 
@@ -330,7 +330,7 @@ int spi_xchg_single(struct spi_slave *slave, unsigned int bitlen,
 int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *dout,
                void *din, unsigned long flags)
 {
-       int n_bytes = (bitlen + 7) / 8;
+       int n_bytes = DIV_ROUND_UP(bitlen, 8);
        int n_bits;
        int ret;
        u32 blk_size;