[PATCH] staging: sm750fb: refactor the clock frequency calculation method

[Lynn Lei]

speed up calculation by merging two divisions into one.

Signed-off-by: Lynn Lei <lynnl....@gmail.com>
---
 drivers/staging/sm750fb/ddk750_chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/sm750fb/ddk750_chip.c 
b/drivers/staging/sm750fb/ddk750_chip.c
index c51761221131..5970c3792f27 100644
--- a/drivers/staging/sm750fb/ddk750_chip.c
+++ b/drivers/staging/sm750fb/ddk750_chip.c
@@ -44,7 +44,7 @@ static unsigned int get_mxclk_freq(void)
        OD = (pll_reg & PLL_CTRL_OD_MASK) >> PLL_CTRL_OD_SHIFT;
        POD = (pll_reg & PLL_CTRL_POD_MASK) >> PLL_CTRL_POD_SHIFT;
 
-       return DEFAULT_INPUT_CLOCK * M / N / (1 << OD) / (1 << POD);
+       return DEFAULT_INPUT_CLOCK * M / N / (1 << (OD + POD));
 }
 
 /*
-- 
2.13.2