Commit 1877f54f authored by Siddharth Gupta's avatar Siddharth Gupta Committed by Bjorn Andersson
Browse files

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: default avatarMathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: default avatarSiddharth Gupta <sidgup@codeaurora.org>
Link: https://lore.kernel.org/r/1586389003-26675-3-git-send-email-sidgup@codeaurora.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 66a4347e

drivers/remoteproc/qcom_sysmon.c

+37 −0
Original line number Diff line number Diff line
@@ -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);

CRA Git | Maintained and supported by SUSTech CRA and CCSE