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imx/clk-pllv1: fix wrong do_div() usage 

do_div() is meant to be used with an unsigned dividend.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
steinar/wifi_calib_4_9_kernel
Nicolas Pitre 2015-11-03 19:46:23 -05:00
parent 8cb87c0407
commit 6a0078c852
1 changed files with 7 additions and 7 deletions
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14
drivers/clk/imx/clk-pllv1.c
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@ -52,7 +52,7 @@ static unsigned long clk_pllv1_recalc_rate(struct clk_hw *hw,
unsigned long parent_rate)
{
struct clk_pllv1 *pll = to_clk_pllv1(hw);
long long ll;
unsigned long long ull;
int mfn_abs;
unsigned int mfi, mfn, mfd, pd;
u32 reg;
@ -94,16 +94,16 @@ static unsigned long clk_pllv1_recalc_rate(struct clk_hw *hw,
rate = parent_rate * 2;
rate /= pd + 1;
ll = (unsigned long long)rate * mfn_abs;
ull = (unsigned long long)rate * mfn_abs;
do_div(ll, mfd + 1);
do_div(ull, mfd + 1);
if (mfn_is_negative(pll, mfn))
ll = -ll;
ull = (rate * mfi) - ull;
else
ull = (rate * mfi) + ull;
ll = (rate * mfi) + ll;
return ll;
return ull;
}
static struct clk_ops clk_pllv1_ops = {