diff options
Diffstat (limited to 'drivers/regulator/wm831x-ldo.c')
| -rw-r--r-- | drivers/regulator/wm831x-ldo.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c index e4a6f888484e..56754686c982 100644 --- a/drivers/regulator/wm831x-ldo.c +++ b/drivers/regulator/wm831x-ldo.c @@ -1,15 +1,10 @@ -/* - * wm831x-ldo.c -- LDO driver for the WM831x series - * - * Copyright 2009 Wolfson Microelectronics PLC. - * - * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// wm831x-ldo.c -- LDO driver for the WM831x series +// +// Copyright 2009 Wolfson Microelectronics PLC. +// +// Author: Mark Brown <broonie@opensource.wolfsonmicro.com> #include <linux/module.h> #include <linux/moduleparam.h> @@ -51,9 +46,11 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data) { struct wm831x_ldo *ldo = data; + regulator_lock(ldo->regulator); regulator_notifier_call_chain(ldo->regulator, REGULATOR_EVENT_UNDER_VOLTAGE, NULL); + regulator_unlock(ldo->regulator); return IRQ_HANDLED; } |