spi: sh: Use spi_sh_clear_bit() instead of open-coded

We have a spi_sh_clear_bit() function, there's no reason not to use it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/drivers/spi/spi-sh.c b/drivers/spi/spi-sh.c
index c120a70094f20f131cf0ef5e7a3861e57f9eba39..9fea8ccdce45aa0888e5f8c19c49e831a0458727 100644 (file)
--- a/drivers/spi/spi-sh.c
+++ b/drivers/spi/spi-sh.c
@@ -171,7 +171,6 @@ static int spi_sh_send(struct spi_sh_data *ss, struct spi_message *mesg,
        int remain = t->len;
        int cur_len;
        unsigned char *data;
-       unsigned long tmp;
        long ret;
 
        if (t->len)
@@ -213,9 +212,7 @@ static int spi_sh_send(struct spi_sh_data *ss, struct spi_message *mesg,
        }
 
        if (list_is_last(&t->transfer_list, &mesg->transfers)) {
-               tmp = spi_sh_read(ss, SPI_SH_CR1);
-               tmp = tmp & ~(SPI_SH_SSD | SPI_SH_SSDB);
-               spi_sh_write(ss, tmp, SPI_SH_CR1);
+               spi_sh_clear_bit(ss, SPI_SH_SSD | SPI_SH_SSDB, SPI_SH_CR1);
                spi_sh_set_bit(ss, SPI_SH_SSA, SPI_SH_CR1);
 
                ss->cr1 &= ~SPI_SH_TBE;
@@ -239,7 +236,6 @@ static int spi_sh_receive(struct spi_sh_data *ss, struct spi_message *mesg,
        int remain = t->len;
        int cur_len;
        unsigned char *data;
-       unsigned long tmp;
        long ret;
 
        if (t->len > SPI_SH_MAX_BYTE)
@@ -247,9 +243,7 @@ static int spi_sh_receive(struct spi_sh_data *ss, struct spi_message *mesg,
        else
                spi_sh_write(ss, t->len, SPI_SH_CR3);
 
-       tmp = spi_sh_read(ss, SPI_SH_CR1);
-       tmp = tmp & ~(SPI_SH_SSD | SPI_SH_SSDB);
-       spi_sh_write(ss, tmp, SPI_SH_CR1);
+       spi_sh_clear_bit(ss, SPI_SH_SSD | SPI_SH_SSDB, SPI_SH_CR1);
        spi_sh_set_bit(ss, SPI_SH_SSA, SPI_SH_CR1);
 
        spi_sh_wait_write_buffer_empty(ss);