summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorSiddharth Gupta <sidgup@codeaurora.org>2020-04-08 16:36:39 -0700
committerBjorn Andersson <bjorn.andersson@linaro.org>2020-04-20 00:06:22 -0700
commit1877f54f75ad16549861ae92a708bd04c23f2a72 (patch)
treecc5c16bdb6b3583a066573d437430c834e3a84a6 /drivers
parent66a4347e9a3e6adf9d3d5ceb9856cbed3d805beb (diff)
remoteproc: sysmon: Add notifications for events
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/remoteproc/qcom_sysmon.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c
index 13660506b9b0..851664e1aabe 100644
--- a/drivers/remoteproc/qcom_sysmon.c
+++ b/drivers/remoteproc/qcom_sysmon.c
@@ -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);