On Wed, Apr 08, 2020 at 04:36:39PM -0700, Siddharth Gupta wrote:
> 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.
>
> Signed-off-by: Siddharth Gupta <sidgup@xxxxxxxxxxxxxx>
Acked-by: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx>
> ---
> drivers/remoteproc/qcom_sysmon.c | 37 +++++++++++++++++++++++++++++++++++++
> 1 file changed, 37 insertions(+)
>
> diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c
> index 1366050..851664e 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);
>
> --
> Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
> a Linux Foundation Collaborative Project
