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| author | Peter Maydell | 2021-02-19 15:45:35 +0100 |
|---|---|---|
| committer | Peter Maydell | 2021-03-08 18:20:01 +0100 |
| commit | e4341623a3b87e7eca87d42b7b88da967cd21c49 (patch) | |
| tree | 302b7562c81f41d7d93b5d1eadc6986742b2390f /hw/core | |
| parent | clock: Add ClockEvent parameter to callbacks (diff) | |
| download | qemu-e4341623a3b87e7eca87d42b7b88da967cd21c49.tar.gz qemu-e4341623a3b87e7eca87d42b7b88da967cd21c49.tar.xz qemu-e4341623a3b87e7eca87d42b7b88da967cd21c49.zip | |
clock: Add ClockPreUpdate callback event type
Add a new callback event type ClockPreUpdate, which is called on
period changes before the period is updated.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Reviewed-by: Hao Wu <wuhaotsh@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20210219144617.4782-3-peter.maydell@linaro.org
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/clock.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/hw/core/clock.c b/hw/core/clock.c index 4479eff145..fc5a99683f 100644 --- a/hw/core/clock.c +++ b/hw/core/clock.c @@ -81,6 +81,9 @@ static void clock_propagate_period(Clock *clk, bool call_callbacks) QLIST_FOREACH(child, &clk->children, sibling) { if (child->period != clk->period) { + if (call_callbacks) { + clock_call_callback(child, ClockPreUpdate); + } child->period = clk->period; trace_clock_update(CLOCK_PATH(child), CLOCK_PATH(clk), CLOCK_PERIOD_TO_HZ(clk->period), |