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hw/clock: Let clock_set() return boolean value

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Let clock_set() return a boolean value whether the clock
has been updated or not.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20200806123858.30058-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Philippe Mathieu-Daudé 2020-08-28 10:02:44 +01:00 • committed by Peter Maydell
parent bb80ae077e
commit 15aa2876d9
2 changed files with 13 additions and 6 deletions
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7
hw/core/clock.c
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@ -34,11 +34,16 @@ void clock_clear_callback(Clock *clk)
clock_set_callback(clk, NULL, NULL);
}
void clock_set(Clock *clk, uint64_t period)
bool clock_set(Clock *clk, uint64_t period)
{
if (clk->period == period) {
return false;
}
trace_clock_set(CLOCK_PATH(clk), CLOCK_PERIOD_TO_NS(clk->period),
CLOCK_PERIOD_TO_NS(period));
clk->period = period;
return true;
}
static void clock_propagate_period(Clock *clk, bool call_callbacks)