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clk: meson: use the frac parameter width instead of a constant
author
Jerome Brunet
<jbrunet@baylibre.com>
Fri, 19 Jan 2018 15:55:24 +0000
(16:55 +0100)
committer
Jerome Brunet
<jbrunet@baylibre.com>
Mon, 12 Feb 2018 08:49:23 +0000
(09:49 +0100)
Use the fractional part width in the calculation instead of 12, which
happens to be the witdh right now. This is safer in case the field width
ever change in the future
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
drivers/clk/meson/clk-pll.c
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diff --git
a/drivers/clk/meson/clk-pll.c
b/drivers/clk/meson/clk-pll.c
index
087dfc5
..
50923d0
100644
(file)
--- a/
drivers/clk/meson/clk-pll.c
+++ b/
drivers/clk/meson/clk-pll.c
@@
-81,7
+81,7
@@
static unsigned long meson_clk_pll_recalc_rate(struct clk_hw *hw,
reg = readl(pll->base + p->reg_off);
frac = PARM_GET(p->width, p->shift, reg);
- rate += mul_u64_u32_shr(parent_rate, frac,
12
);
+ rate += mul_u64_u32_shr(parent_rate, frac,
p->width
);
rate *= 2;
}