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remoteproc: qcom: Add support for SSR notifications

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This adds the remoteproc part of subsystem restart, which is responsible
for emitting notifications to other processors in the system about a
dying remoteproc instance.

These notifications are propagated to the various communication systems
in the various remote processors to shut down communication links that
was left in a dangling state as the remoteproc was stopped (or crashed).

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This commit is contained in:
Bjorn Andersson
2017-07-24 22:56:43 -07:00
parent 1b0ef9068f
commit 1e140df049
5 changed files with 112 additions and 0 deletions
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22
include/linux/remoteproc/qcom_rproc.h Normal file
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@@ -0,0 +1,22 @@
#ifndef __QCOM_RPROC_H__
#define __QCOM_RPROC_H__
struct notifier_block;
#if IS_ENABLED(CONFIG_QCOM_RPROC_COMMON)
int qcom_register_ssr_notifier(struct notifier_block *nb);
void qcom_unregister_ssr_notifier(struct notifier_block *nb);
#else
static inline int qcom_register_ssr_notifier(struct notifier_block *nb)
{
return 0;
}
static inline void qcom_unregister_ssr_notifier(struct notifier_block *nb) {}
#endif
#endif