1 // SPDX-License-Identifier: GPL-2.0+
46 	struct bcm2835_timer *timer = container_of(evt_dev,  in bcm2835_time_set_next_event()  local
49 		timer->compare);  in bcm2835_time_set_next_event()
55 	struct bcm2835_timer *timer = dev_id;  in bcm2835_time_interrupt()  local
57 	if (readl_relaxed(timer->control) & timer->match_mask) {  in bcm2835_time_interrupt()
58 		writel_relaxed(timer->match_mask, timer->control);  in bcm2835_time_interrupt()
60 		event_handler = READ_ONCE(timer->evt.event_handler);  in bcm2835_time_interrupt()
62 			event_handler(&timer->evt);  in bcm2835_time_interrupt()
74 	struct bcm2835_timer *timer;  in bcm2835_timer_init()  local
79 		return -ENXIO;  in bcm2835_timer_init()
82 	ret = of_property_read_u32(node, "clock-frequency", &freq);  in bcm2835_timer_init()
84 		pr_err("Can't read clock-frequency\n");  in bcm2835_timer_init()
91 	clocksource_mmio_init(base + REG_COUNTER_LO, node->name,  in bcm2835_timer_init()
97 		ret = -EINVAL;  in bcm2835_timer_init()
101 	timer = kzalloc(sizeof(*timer), GFP_KERNEL);  in bcm2835_timer_init()
102 	if (!timer) {  in bcm2835_timer_init()
103 		ret = -ENOMEM;  in bcm2835_timer_init()
107 	timer->control = base + REG_CONTROL;  in bcm2835_timer_init()
108 	timer->compare = base + REG_COMPARE(DEFAULT_TIMER);  in bcm2835_timer_init()
109 	timer->match_mask = BIT(DEFAULT_TIMER);  in bcm2835_timer_init()
110 	timer->evt.name = node->name;  in bcm2835_timer_init()
111 	timer->evt.rating = 300;  in bcm2835_timer_init()
112 	timer->evt.features = CLOCK_EVT_FEAT_ONESHOT;  in bcm2835_timer_init()
113 	timer->evt.set_next_event = bcm2835_time_set_next_event;  in bcm2835_timer_init()
114 	timer->evt.cpumask = cpumask_of(0);  in bcm2835_timer_init()
117 			  node->name, timer);  in bcm2835_timer_init()
119 		pr_err("Can't set up timer IRQ\n");  in bcm2835_timer_init()
123 	clockevents_config_and_register(&timer->evt, freq, 0xf, 0xffffffff);  in bcm2835_timer_init()
125 	pr_info("bcm2835: system timer (irq = %d)\n", irq);  in bcm2835_timer_init()
130 	kfree(timer);  in bcm2835_timer_init()
136 TIMER_OF_DECLARE(bcm2835, "brcm,bcm2835-system-timer",