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clk: sunxi: factors: fix off-by-one masks

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The previous code would generate one bit too long masks, and was
needlessly complicated. This patch replaces it by simpler code that can
generate the masks correctly.

Signed-off-by: Emilio López <emilio@elopez.com.ar>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Emilio López 2013-09-20 22:03:10 -03:00 committed by Maxime Ripard
parent 107f3198fd
commit c518e84c76
1 changed files with 1 additions and 1 deletions
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2
drivers/clk/sunxi/clk-factors.c
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@ -40,7 +40,7 @@ struct clk_factors {
#define to_clk_factors(_hw) container_of(_hw, struct clk_factors, hw)
#define SETMASK(len, pos) (((-1U) >> (31-len)) << (pos))
#define SETMASK(len, pos) (((1U << (len)) - 1) << (pos))
#define CLRMASK(len, pos) (~(SETMASK(len, pos)))
#define FACTOR_GET(bit, len, reg) (((reg) & SETMASK(len, bit)) >> (bit))