spi: pxa2xx: choose closest lower speed

As per discussion [1] the best choice is to set closest speed which is not
going over the asked one.

Do the same approach for Intel Quark boards.

[1] http://www.spinics.net/lists/linux-spi/msg03389.html

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 22b473ebf607..158967a10bec 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -730,7 +730,7 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds)
         mul = (1 << 24) >> 1;
 
         /* Calculate initial quot */
-        q1 = DIV_ROUND_CLOSEST(fref1, rate);
+        q1 = DIV_ROUND_UP(fref1, rate);
 
         /* Scale q1 if it's too big */
         if (q1 > 256) {
@@ -755,7 +755,7 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds)
 
         /* Case 2 */
 
-        q2 = DIV_ROUND_CLOSEST(fref2, rate);
+        q2 = DIV_ROUND_UP(fref2, rate);
         r2 = abs(fref2 / q2 - rate);
 
         /*
@@ -774,13 +774,13 @@ static unsigned int quark_x1000_get_clk_div(int rate, u32 *dds)
                 mul = (1 << 24) * 2 / 5;
         }
 
-        /* Check case 3 only If the divisor is big enough */
+        /* Check case 3 only if the divisor is big enough */
         if (fref / rate >= 80) {
                 u64 fssp;
                 u32 m;
 
                 /* Calculate initial quot */
-                q1 = DIV_ROUND_CLOSEST(fref, rate);
+                q1 = DIV_ROUND_UP(fref, rate);
                 m = (1 << 24) / q1;
 
                 /* Get the remainder */