soc: qcom: glink_ssr: Internalize ssr_notifiers
Rather than carrying a special purpose blocking notifier for glink_ssr
in remoteproc's qcom_common.c, move it into glink_ssr so allow wider
reuse of the common one.
The rpmsg glink header file is used in preparation for the next patch.
Acked-by: Chris Lew <clew@codeaurora.org>
Acked-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/20200423003736.2027371-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
diff --git a/drivers/soc/qcom/glink_ssr.c b/drivers/soc/qcom/glink_ssr.c
index d7babe3..847d79c 100644
--- a/drivers/soc/qcom/glink_ssr.c
+++ b/drivers/soc/qcom/glink_ssr.c
@@ -54,6 +54,19 @@ struct glink_ssr {
struct completion completion;
};
+/* Notifier list for all registered glink_ssr instances */
+static BLOCKING_NOTIFIER_HEAD(ssr_notifiers);
+
+/**
+ * qcom_glink_ssr_notify() - notify GLINK SSR about stopped remoteproc
+ * @ssr_name: name of the remoteproc that has been stopped
+ */
+void qcom_glink_ssr_notify(const char *ssr_name)
+{
+ blocking_notifier_call_chain(&ssr_notifiers, 0, (void *)ssr_name);
+}
+EXPORT_SYMBOL_GPL(qcom_glink_ssr_notify);
+
static int qcom_glink_ssr_callback(struct rpmsg_device *rpdev,
void *data, int len, void *priv, u32 addr)
{
@@ -81,8 +94,9 @@ static int qcom_glink_ssr_callback(struct rpmsg_device *rpdev,
return 0;
}
-static int qcom_glink_ssr_notify(struct notifier_block *nb, unsigned long event,
- void *data)
+static int qcom_glink_ssr_notifier_call(struct notifier_block *nb,
+ unsigned long event,
+ void *data)
{
struct glink_ssr *ssr = container_of(nb, struct glink_ssr, nb);
struct do_cleanup_msg msg;
@@ -121,18 +135,18 @@ static int qcom_glink_ssr_probe(struct rpmsg_device *rpdev)
ssr->dev = &rpdev->dev;
ssr->ept = rpdev->ept;
- ssr->nb.notifier_call = qcom_glink_ssr_notify;
+ ssr->nb.notifier_call = qcom_glink_ssr_notifier_call;
dev_set_drvdata(&rpdev->dev, ssr);
- return qcom_register_ssr_notifier(&ssr->nb);
+ return blocking_notifier_chain_register(&ssr_notifiers, &ssr->nb);
}
static void qcom_glink_ssr_remove(struct rpmsg_device *rpdev)
{
struct glink_ssr *ssr = dev_get_drvdata(&rpdev->dev);
- qcom_unregister_ssr_notifier(&ssr->nb);
+ blocking_notifier_chain_unregister(&ssr_notifiers, &ssr->nb);
}
static const struct rpmsg_device_id qcom_glink_ssr_match[] = {
