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clocksource: Fix type confusion for clocksource_mmio_readX_Y

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The types' definations are:
   o  cycle_t       -> u64
   o  readl_relaxed -> u32
   o  readw_relaxed -> u16

So let clocksource_mmio_readX_Ys return a cast to cycle_t, though
this maybe look reduntant sometimes, it make sense and they will be
more readable and less confusion...

This patch clarifies the functions type and fix it.

Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
This commit is contained in:
Xiubo Li 2014-04-23 10:11:59 +08:00 committed by Daniel Lezcano
parent 013be5adf5
commit 4a3ae07413
1 changed files with 4 additions and 4 deletions
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8
drivers/clocksource/mmio.c
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@ -22,22 +22,22 @@ static inline struct clocksource_mmio *to_mmio_clksrc(struct clocksource *c)
cycle_t clocksource_mmio_readl_up(struct clocksource *c)
{
return readl_relaxed(to_mmio_clksrc(c)->reg);
return (cycle_t)readl_relaxed(to_mmio_clksrc(c)->reg);
}
cycle_t clocksource_mmio_readl_down(struct clocksource *c)
{
return ~readl_relaxed(to_mmio_clksrc(c)->reg);
return ~(cycle_t)readl_relaxed(to_mmio_clksrc(c)->reg);
}
cycle_t clocksource_mmio_readw_up(struct clocksource *c)
{
return readw_relaxed(to_mmio_clksrc(c)->reg);
return (cycle_t)readw_relaxed(to_mmio_clksrc(c)->reg);
}
cycle_t clocksource_mmio_readw_down(struct clocksource *c)
{
return ~(unsigned)readw_relaxed(to_mmio_clksrc(c)->reg);
return ~(cycle_t)readw_relaxed(to_mmio_clksrc(c)->reg);
}
/**