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authorFernando Guzman Lugo <fernando.lugo@ti.com>2012-09-18 12:26:35 +0300
committerOhad Ben-Cohen <ohad@wizery.com>2012-09-18 12:53:41 +0300
commit2e37abb89a2ef13c524b0728bb9893f996a10b6b (patch)
tree11e760251317566b19cd9053608afa67cab88576 /drivers/remoteproc/remoteproc_core.c
parent70b85ef83ce3523f709b622d2c4cb31778686338 (diff)
downloadlinux-2e37abb89a2ef13c524b0728bb9893f996a10b6b.tar.gz
remoteproc: create a 'recovery' debugfs entry
Add a 'recovery' debugfs entry to dynamically disable/enable recovery at runtime. This is useful when one is trying to debug an rproc crash; without it, a recovery will immediately take place, making it harder to debug the crash. Contributions from Subramaniam Chanderashekarapuram. Examples: - disabling recovery: $ echo disabled > <debugfs>/remoteproc/remoteproc0/recovery - in case you want to recover a crash, but keep recovery disabled (useful in debugging sessions when you expect additional crashes you want to debug): $ echo recover > <debugfs>/remoteproc/remoteproc0/recovery - enabling recovery: $ echo enabled > <debugfs>/remoteproc/remoteproc0/recovery Signed-off-by: Fernando Guzman Lugo <fernando.lugo@ti.com> [ohad: some white space, commentary and commit log changes] Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Diffstat (limited to 'drivers/remoteproc/remoteproc_core.c')
-rw-r--r--drivers/remoteproc/remoteproc_core.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 5000d7589cf..29fc8236cac 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -965,7 +965,8 @@ static void rproc_crash_handler_work(struct work_struct *work)
mutex_unlock(&rproc->lock);
- rproc_trigger_recovery(rproc);
+ if (!rproc->recovery_disabled)
+ rproc_trigger_recovery(rproc);
}
/**