1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2013 Samsung Electronics Co., Ltd.
4  */
5 #ifndef __CLOCKSOURCE_SAMSUNG_PWM_H
6 #define __CLOCKSOURCE_SAMSUNG_PWM_H
7 
8 #include <linux/spinlock.h>
9 
10 #define SAMSUNG_PWM_NUM		5
11 
12 /*
13  * Following declaration must be in an ifdef due to this symbol being static
14  * in pwm-samsung driver if the clocksource driver is not compiled in and the
15  * spinlock is not shared between both drivers.
16  */
17 #ifdef CONFIG_CLKSRC_SAMSUNG_PWM
18 extern spinlock_t samsung_pwm_lock;
19 #endif
20 
21 struct samsung_pwm_variant {
22 	u8 bits;
23 	u8 div_base;
24 	u8 tclk_mask;
25 	u8 output_mask;
26 	bool has_tint_cstat;
27 };
28 
29 void samsung_pwm_clocksource_init(void __iomem *base,
30 		unsigned int *irqs, struct samsung_pwm_variant *variant);
31 
32 #endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */
33