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 29 extern spinlock_t samsung_pwm_lock; 30 #endif 31 32 struct 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 40 void samsung_pwm_clocksource_init(void __iomem *base, 41 unsigned int *irqs, struct samsung_pwm_variant *variant); 42 43 #endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */ 44