1/*
2 * Copyright (C) 2013 Samsung Electronics Co., Ltd.
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
15 */
16#ifndef __CLOCKSOURCE_SAMSUNG_PWM_H
17#define __CLOCKSOURCE_SAMSUNG_PWM_H
18
19#include <linux/spinlock.h>
20
21#define SAMSUNG_PWM_NUM		5
22
23/*
24 * Following declaration must be in an ifdef due to this symbol being static
25 * in pwm-samsung driver if the clocksource driver is not compiled in and the
26 * spinlock is not shared between both drivers.
27 */
28#ifdef CONFIG_CLKSRC_SAMSUNG_PWM
29extern spinlock_t samsung_pwm_lock;
30#endif
31
32struct samsung_pwm_variant {
33	u8 bits;
34	u8 div_base;
35	u8 tclk_mask;
36	u8 output_mask;
37	bool has_tint_cstat;
38};
39
40void samsung_pwm_clocksource_init(void __iomem *base,
41		unsigned int *irqs, struct samsung_pwm_variant *variant);
42
43#endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */
44