LXR linux/include/clocksource/samsung

   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