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author | Nicolas Pitre <nicolas.pitre@linaro.org> | 2015-11-03 19:46:23 -0500 |
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committer | Stephen Boyd <sboyd@codeaurora.org> | 2015-11-30 12:58:35 -0800 |
commit | 741e96e8790cbd389d27e29bbf66de2c691fd775 (patch) | |
tree | 0549369ea96a147bc45fcd00b95f1f087445354f | |
parent | c6bb9cece632f4cad804b3b574364bb68a4c363b (diff) | |
download | linux-741e96e8790cbd389d27e29bbf66de2c691fd775.tar.bz2 |
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>
Acked-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
-rw-r--r-- | drivers/clk/imx/clk-pllv1.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/clk/imx/clk-pllv1.c b/drivers/clk/imx/clk-pllv1.c index 8564e4342c7d..82fe3662b5f6 100644 --- a/drivers/clk/imx/clk-pllv1.c +++ b/drivers/clk/imx/clk-pllv1.c @@ -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 = { |