include/clocksource/samsung_pwm.h

   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,
  31                                   const struct samsung_pwm_variant *variant);
  32
  33 #endif /* __CLOCKSOURCE_SAMSUNG_PWM_H */