msm: timer: compensate for timer shift in msm_read_timer_count
Some msm targets have timers whose lower bits are unreliable. So, we
present our timers as lower frequency than they actually are, and ignore
the bottom 5 bits on such targets. This compensation was erroneously
removed from the msm_read_timer_count function, so restore it.
This was broken by 94790ec25
"msm: timer: SMP timer support for msm".
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
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ebf30dc91c
Коммит
650f156775
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@ -102,7 +102,11 @@ static cycle_t msm_read_timer_count(struct clocksource *cs)
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{
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{
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struct msm_clock *clk = container_of(cs, struct msm_clock, clocksource);
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struct msm_clock *clk = container_of(cs, struct msm_clock, clocksource);
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return readl(clk->global_counter);
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/*
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* Shift timer count down by a constant due to unreliable lower bits
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* on some targets.
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*/
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return readl(clk->global_counter) >> clk->shift;
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}
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}
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static struct msm_clock *clockevent_to_clock(struct clock_event_device *evt)
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static struct msm_clock *clockevent_to_clock(struct clock_event_device *evt)
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