drivers/clocksource/timer-of.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __TIMER_OF_H__
   3 #define __TIMER_OF_H__
   4
   5 #include <linux/clockchips.h>
   6
   7 #define TIMER_OF_BASE   0x1
   8 #define TIMER_OF_CLOCK  0x2
   9 #define TIMER_OF_IRQ    0x4
  10
  11 struct of_timer_irq {
  12         int irq;
  13         int index;
  14         const char *name;
  15         unsigned long flags;
  16         irq_handler_t handler;
  17 };
  18
  19 struct of_timer_base {
  20         void __iomem *base;
  21         const char *name;
  22         int index;
  23 };
  24
  25 struct of_timer_clk {
  26         struct clk *clk;
  27         const char *name;
  28         int index;
  29         unsigned long rate;
  30         unsigned long period;
  31 };
  32
  33 struct timer_of {
  34         unsigned int flags;
  35         struct device_node *np;
  36         struct clock_event_device clkevt;
  37         struct of_timer_base of_base;
  38         struct of_timer_irq  of_irq;
  39         struct of_timer_clk  of_clk;
  40         void *private_data;
  41 };
  42
  43 static inline struct timer_of *to_timer_of(struct clock_event_device *clkevt)
  44 {
  45         return container_of(clkevt, struct timer_of, clkevt);
  46 }
  47
  48 static inline void __iomem *timer_of_base(struct timer_of *to)
  49 {
  50         return to->of_base.base;
  51 }
  52
  53 static inline int timer_of_irq(struct timer_of *to)
  54 {
  55         return to->of_irq.irq;
  56 }
  57
  58 static inline unsigned long timer_of_rate(struct timer_of *to)
  59 {
  60         return to->of_clk.rate;
  61 }
  62
  63 static inline unsigned long timer_of_period(struct timer_of *to)
  64 {
  65         return to->of_clk.period;
  66 }
  67
  68 extern int __init timer_of_init(struct device_node *np,
  69                                 struct timer_of *to);
  70
  71 extern void __init timer_of_cleanup(struct timer_of *to);
  72
  73 #endif