diff options
| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2015-03-24 17:43:21 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-03-24 09:32:48 -0700 |
| commit | 025ffe88ee605acb03dba0d920908dff5ec15dd0 (patch) | |
| tree | b7be19cbb5b42d13996dfc48dc1f9a503fc3e747 /drivers/spi/spi-pxa2xx.c | |
| parent | 22d1b94d4b04878a6d1514a21af04699bd27e0ce (diff) | |
| download | lwn-025ffe88ee605acb03dba0d920908dff5ec15dd0.tar.gz lwn-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/spi-pxa2xx.c')
| -rw-r--r-- | drivers/spi/spi-pxa2xx.c | 10 |
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) |