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Diffstat (limited to 'include/clocksource/samsung_pwm.h')
-rw-r--r--include/clocksource/samsung_pwm.h23
1 files changed, 10 insertions, 13 deletions
diff --git a/include/clocksource/samsung_pwm.h b/include/clocksource/samsung_pwm.h
index 5c449c8199e9..9b435caa95fe 100644
--- a/include/clocksource/samsung_pwm.h
+++ b/include/clocksource/samsung_pwm.h
@@ -1,17 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __CLOCKSOURCE_SAMSUNG_PWM_H
#define __CLOCKSOURCE_SAMSUNG_PWM_H
@@ -20,7 +9,14 @@
#define SAMSUNG_PWM_NUM 5
+/*
+ * Following declaration must be in an ifdef due to this symbol being static
+ * in pwm-samsung driver if the clocksource driver is not compiled in and the
+ * spinlock is not shared between both drivers.
+ */
+#ifdef CONFIG_CLKSRC_SAMSUNG_PWM
extern spinlock_t samsung_pwm_lock;
+#endif
struct samsung_pwm_variant {
u8 bits;
@@ -31,6 +27,7 @@ struct samsung_pwm_variant {
};
void samsung_pwm_clocksource_init(void __iomem *base,
- unsigned int *irqs, struct samsung_pwm_variant *variant);
+ unsigned int *irqs,
+ const struct samsung_pwm_variant *variant);
#endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */