Store the state change reason to some black box, for later
investigation.
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
drivers/regulator/core.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a6cb84af989e..d8a45c89f14a 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -19,6 +19,7 @@
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/of.h>
+#include <linux/pscr.h>
#include <linux/reboot.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
@@ -5074,6 +5075,7 @@ EXPORT_SYMBOL_GPL(regulator_bulk_free);
static void regulator_handle_critical(struct regulator_dev *rdev,
unsigned long event)
{
+ enum power_state_change_reason pscr;
const char *reason = NULL;
if (!rdev->constraints->system_critical)
@@ -5082,17 +5084,21 @@ static void regulator_handle_critical(struct regulator_dev *rdev,
switch (event) {
case REGULATOR_EVENT_UNDER_VOLTAGE:
reason = "System critical regulator: voltage drop detected";
+ pscr = PSCR_UNDER_VOLTAGE;
break;
case REGULATOR_EVENT_OVER_CURRENT:
reason = "System critical regulator: over-current detected";
+ pscr = PSCR_OVER_CURRENT;
break;
case REGULATOR_EVENT_FAIL:
reason = "System critical regulator: unknown error";
+ pscr = PSCR_REGULATOR_FAILURE;
}
if (!reason)
return;
+ set_power_state_change_reason(pscr);
hw_protection_shutdown(reason,
rdev->constraints->uv_less_critical_window_ms);
}
--
2.39.2
