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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2015-03-24 16:43:21 +0100
committerMark Brown <broonie@kernel.org>2015-03-24 17:32:48 +0100
commit025ffe88ee605acb03dba0d920908dff5ec15dd0 (patch)
treeb7be19cbb5b42d13996dfc48dc1f9a503fc3e747 /drivers/spi
parentspi: pxa2xx: Remove needless includes (diff)
downloadlinux-025ffe88ee605acb03dba0d920908dff5ec15dd0.tar.xz
linux-025ffe88ee605acb03dba0d920908dff5ec15dd0.zip
spi: pxa2xx: shift clk_div in one place
This patch refactors ssp_get_clk_div() and pxa2xx_ssp_get_clk_div() to align clk_div calculations, i.e. ssp_get_clk_div() and quark_x1000_set_clk_regvals() will return plain clk_div and it will be shifted to proper position in pxa2xx_ssp_get_clk_div(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-pxa2xx.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 74342d167324..6d6473427432 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -726,23 +726,23 @@ static unsigned int ssp_get_clk_div(struct driver_data *drv_data, int rate)
rate = min_t(int, ssp_clk, rate);
if (ssp->type == PXA25x_SSP || ssp->type == CE4100_SSP)
- return ((ssp_clk / (2 * rate) - 1) & 0xff) << 8;
+ return (ssp_clk / (2 * rate) - 1) & 0xff;
else
- return ((ssp_clk / rate - 1) & 0xfff) << 8;
+ return (ssp_clk / rate - 1) & 0xfff;
}
static unsigned int pxa2xx_ssp_get_clk_div(struct driver_data *drv_data,
struct chip_data *chip, int rate)
{
- u32 clk_div;
+ unsigned int clk_div;
switch (drv_data->ssp_type) {
case QUARK_X1000_SSP:
quark_x1000_set_clk_regvals(rate, &chip->dds_rate, &clk_div);
- return clk_div << 8;
default:
- return ssp_get_clk_div(drv_data, rate);
+ clk_div = ssp_get_clk_div(drv_data, rate);
}
+ return clk_div << 8;
}
static void pump_transfers(unsigned long data)