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ANDROID: power: add vendor hook to handle hibernate failures

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The driver or external module may need handling due to hibernate failure.
This error cannot be detected outside of the hibernate() function.
so Add a vendor hook to receive and handle errors in hibernate().

Bug: 342523877
Change-Id: I221e26f571d94e5d5c5aae19937945bb8981f85b
Signed-off-by: karam.lee <karam.lee@lge.com>
This commit is contained in:
karam.lee
2024-07-25 15:35:02 +09:00
committed by Treehugger Robot
parent d7387786c2
commit f571d0bdaa
3 changed files with 8 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@@ -440,3 +440,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_get_folio_trylock_result);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_folio_trylock_clear);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_folio_trylock_set);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_handle_trylock_failed_folio);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_hibernate_state);

4
include/trace/hooks/power.h
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@@ -33,6 +33,10 @@ DECLARE_HOOK(android_vh_freq_qos_remove_request,
TP_PROTO(struct freq_qos_request *req),
TP_ARGS(req));
DECLARE_HOOK(android_vh_hibernate_state,
TP_PROTO(int error),
TP_ARGS(error));
#endif /* _TRACE_HOOK_POWER_H */
/* This part must be outside protection */
#include <trace/define_trace.h>

3
kernel/power/main.c
View File

@@ -16,6 +16,8 @@
#include <linux/suspend.h>
#include <linux/syscalls.h>
#include <linux/pm_runtime.h>
#include <trace/events/power.h>
#include <trace/hooks/power.h>
#include "power.h"
@@ -639,6 +641,7 @@ static ssize_t state_store(struct kobject *kobj, struct kobj_attribute *attr,
error = pm_suspend(state);
} else if (state == PM_SUSPEND_MAX) {
error = hibernate();
trace_android_vh_hibernate_state(error);
} else {
error = -EINVAL;
}