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soc: qcom: msm_glink_ssr: Notify on powerup failure

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There have been situations where the remote boots up far enough to
establish glink communication to other remote processors but not far
enough that APPS recognizes that the remote proc has been brought
out of reset.

The remote procs that have established connection with the
"boot failed" remote proc will crash from having a stale state once the
"boot failed" remote proc is restarted.

Send a cleanup message on powerup failure so remote procs can cleanup
their state with the remote proc that failed to start.

Change-Id: If6fae349bb5f45fb544275a4ba2320d5f12fe4fc
Signed-off-by: Chris Lew <clew@codeaurora.org>
This commit is contained in:
Chris Lew 2020-09-14 20:46:48 -07:00
commit a91c0d19fc
1 changed files with 2 additions and 2 deletions
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4
drivers/soc/qcom/msm_glink_ssr.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
* Copyright (c) 2017-2020, The Linux Foundation. All rights reserved.
*/
#include <linux/of.h>
@ -74,7 +74,7 @@ static int glink_ssr_ssr_cb(struct notifier_block *this,
struct do_cleanup_msg msg;
int ret;
if (code == SUBSYS_AFTER_SHUTDOWN) {
if (code == SUBSYS_AFTER_SHUTDOWN || code == SUBSYS_POWERUP_FAILURE) {
ssr->seq_num++;
reinit_completion(&ssr->completion);