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authorPeter Maydell <peter.maydell@linaro.org>2021-02-19 14:45:34 +0000
committerPeter Maydell <peter.maydell@linaro.org>2021-03-08 17:20:01 +0000
commit5ee0abed51231949ef91d7f8e1115be69ed91e93 (patch)
treeb2c5ff7c17430270d3b03213eb668dd207bd4665 /hw/timer/cmsdk-apb-timer.c
parent0436c55edf6b357ff56e2a5bf688df8636f83456 (diff)
clock: Add ClockEvent parameter to callbacks
The Clock framework allows users to specify a callback which is called after the clock's period has been updated. Some users need to also have a callback which is called before the clock period is updated. As the first step in adding support for notifying Clock users on pre-update events, add an argument to the ClockCallback to specify what event is being notified, and add an argument to the various functions for registering a callback to specify which events are of interest to that callback. Note that the documentation update renders correct the previously incorrect claim in 'Adding a new clock' that callbacks "will be explained in a following section". Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Luc Michel <luc@lmichel.fr> Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20210219144617.4782-2-peter.maydell@linaro.org
Diffstat (limited to 'hw/timer/cmsdk-apb-timer.c')
-rw-r--r--hw/timer/cmsdk-apb-timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/timer/cmsdk-apb-timer.c b/hw/timer/cmsdk-apb-timer.c
index ee51ce3369..68aa1a7636 100644
--- a/hw/timer/cmsdk-apb-timer.c
+++ b/hw/timer/cmsdk-apb-timer.c
@@ -204,7 +204,7 @@ static void cmsdk_apb_timer_reset(DeviceState *dev)
ptimer_transaction_commit(s->timer);
}
-static void cmsdk_apb_timer_clk_update(void *opaque)
+static void cmsdk_apb_timer_clk_update(void *opaque, ClockEvent event)
{
CMSDKAPBTimer *s = CMSDK_APB_TIMER(opaque);
@@ -223,7 +223,7 @@ static void cmsdk_apb_timer_init(Object *obj)
sysbus_init_mmio(sbd, &s->iomem);
sysbus_init_irq(sbd, &s->timerint);
s->pclk = qdev_init_clock_in(DEVICE(s), "pclk",
- cmsdk_apb_timer_clk_update, s);
+ cmsdk_apb_timer_clk_update, s, ClockUpdate);
}
static void cmsdk_apb_timer_realize(DeviceState *dev, Error **errp)