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remoteproc: sysmon: Add notifications for events

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Add notification for other stages of remoteproc boot and shutdown. This
includes adding callback functions for the prepare and unprepare events,
and fleshing out the callback function for start.

Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Link: https://lore.kernel.org/r/1586389003-26675-3-git-send-email-sidgup@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Siddharth Gupta 2020-04-08 16:36:39 -07:00 committed by Bjorn Andersson
parent 66a4347e9a
commit 1877f54f75
1 changed files with 37 additions and 0 deletions
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37
drivers/remoteproc/qcom_sysmon.c
View file

@ -439,8 +439,31 @@ static const struct qmi_ops ssctl_ops = {
.del_server = ssctl_del_server,
};
static int sysmon_prepare(struct rproc_subdev *subdev)
{
struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon,
subdev);
struct sysmon_event event = {
.subsys_name = sysmon->name,
.ssr_event = SSCTL_SSR_EVENT_BEFORE_POWERUP
};
blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event);
return 0;
}
static int sysmon_start(struct rproc_subdev *subdev)
{
struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon,
subdev);
struct sysmon_event event = {
.subsys_name = sysmon->name,
.ssr_event = SSCTL_SSR_EVENT_AFTER_POWERUP
};
blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event);
return 0;
}
@ -464,6 +487,18 @@ static void sysmon_stop(struct rproc_subdev *subdev, bool crashed)
sysmon_request_shutdown(sysmon);
}
static void sysmon_unprepare(struct rproc_subdev *subdev)
{
struct qcom_sysmon *sysmon = container_of(subdev, struct qcom_sysmon,
subdev);
struct sysmon_event event = {
.subsys_name = sysmon->name,
.ssr_event = SSCTL_SSR_EVENT_AFTER_SHUTDOWN
};
blocking_notifier_call_chain(&sysmon_notifiers, 0, (void *)&event);
}
/**
* sysmon_notify() - notify sysmon target of another's SSR
* @nb: notifier_block associated with sysmon instance
@ -563,8 +598,10 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc,
qmi_add_lookup(&sysmon->qmi, 43, 0, 0);
sysmon->subdev.prepare = sysmon_prepare;
sysmon->subdev.start = sysmon_start;
sysmon->subdev.stop = sysmon_stop;
sysmon->subdev.unprepare = sysmon_unprepare;
rproc_add_subdev(rproc, &sysmon->subdev);