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 	int percpu;
15 	const char *name;
16 	unsigned long flags;
17 	irq_handler_t handler;
18 };
19 
20 struct of_timer_base {
21 	void __iomem *base;
22 	const char *name;
23 	int index;
24 };
25 
26 struct of_timer_clk {
27 	struct clk *clk;
28 	const char *name;
29 	int index;
30 	unsigned long rate;
31 	unsigned long period;
32 };
33 
34 struct timer_of {
35 	unsigned int flags;
36 	struct device_node *np;
37 	struct clock_event_device clkevt;
38 	struct of_timer_base of_base;
39 	struct of_timer_irq  of_irq;
40 	struct of_timer_clk  of_clk;
41 	void *private_data;
42 };
43 
to_timer_of(struct clock_event_device * clkevt)44 static inline struct timer_of *to_timer_of(struct clock_event_device *clkevt)
45 {
46 	return container_of(clkevt, struct timer_of, clkevt);
47 }
48 
timer_of_base(struct timer_of * to)49 static inline void __iomem *timer_of_base(struct timer_of *to)
50 {
51 	return to->of_base.base;
52 }
53 
timer_of_irq(struct timer_of * to)54 static inline int timer_of_irq(struct timer_of *to)
55 {
56 	return to->of_irq.irq;
57 }
58 
timer_of_rate(struct timer_of * to)59 static inline unsigned long timer_of_rate(struct timer_of *to)
60 {
61 	return to->of_clk.rate;
62 }
63 
timer_of_period(struct timer_of * to)64 static inline unsigned long timer_of_period(struct timer_of *to)
65 {
66 	return to->of_clk.period;
67 }
68 
69 extern int __init timer_of_init(struct device_node *np,
70 				struct timer_of *to);
71 
72 extern void __init timer_of_cleanup(struct timer_of *to);
73 
74 #endif
75