72 static void sun5i_clkevt_sync(struct sun5i_timer_clkevt *ce)  in sun5i_clkevt_sync()  argument
74 	u32 old = readl(ce->timer.base + TIMER_CNTVAL_LO_REG(1));  in sun5i_clkevt_sync()
76 	while ((old - readl(ce->timer.base + TIMER_CNTVAL_LO_REG(1))) < TIMER_SYNC_TICKS)  in sun5i_clkevt_sync()
80 static void sun5i_clkevt_time_stop(struct sun5i_timer_clkevt *ce, u8 timer)  in sun5i_clkevt_time_stop()  argument
82 	u32 val = readl(ce->timer.base + TIMER_CTL_REG(timer));  in sun5i_clkevt_time_stop()
83 	writel(val & ~TIMER_CTL_ENABLE, ce->timer.base + TIMER_CTL_REG(timer));  in sun5i_clkevt_time_stop()
85 	sun5i_clkevt_sync(ce);  in sun5i_clkevt_time_stop()
88 static void sun5i_clkevt_time_setup(struct sun5i_timer_clkevt *ce, u8 timer, u32 delay)  in sun5i_clkevt_time_setup()  argument
90 	writel(delay, ce->timer.base + TIMER_INTVAL_LO_REG(timer));  in sun5i_clkevt_time_setup()
93 static void sun5i_clkevt_time_start(struct sun5i_timer_clkevt *ce, u8 timer, bool periodic)  in sun5i_clkevt_time_start()  argument
95 	u32 val = readl(ce->timer.base + TIMER_CTL_REG(timer));  in sun5i_clkevt_time_start()
103 	       ce->timer.base + TIMER_CTL_REG(timer));  in sun5i_clkevt_time_start()
108 	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);  in sun5i_clkevt_shutdown()  local
110 	sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_shutdown()
116 	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);  in sun5i_clkevt_set_oneshot()  local
118 	sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_set_oneshot()
119 	sun5i_clkevt_time_start(ce, 0, false);  in sun5i_clkevt_set_oneshot()
125 	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);  in sun5i_clkevt_set_periodic()  local
127 	sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_set_periodic()
128 	sun5i_clkevt_time_setup(ce, 0, ce->timer.ticks_per_jiffy);  in sun5i_clkevt_set_periodic()
129 	sun5i_clkevt_time_start(ce, 0, true);  in sun5i_clkevt_set_periodic()
136 	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);  in sun5i_clkevt_next_event()  local
138 	sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_next_event()
139 	sun5i_clkevt_time_setup(ce, 0, evt - TIMER_SYNC_TICKS);  in sun5i_clkevt_next_event()
140 	sun5i_clkevt_time_start(ce, 0, false);  in sun5i_clkevt_next_event()
147 	struct sun5i_timer_clkevt *ce = (struct sun5i_timer_clkevt *)dev_id;  in sun5i_timer_interrupt()  local
149 	writel(0x1, ce->timer.base + TIMER_IRQ_ST_REG);  in sun5i_timer_interrupt()
150 	ce->clkevt.event_handler(&ce->clkevt);  in sun5i_timer_interrupt()
248 	struct sun5i_timer_clkevt *ce = container_of(timer, struct sun5i_timer_clkevt, timer);  in sun5i_rate_cb_clkevt()  local
251 		clockevents_update_freq(&ce->clkevt, ndata->new_rate);  in sun5i_rate_cb_clkevt()
252 		ce->timer.ticks_per_jiffy = DIV_ROUND_UP(ndata->new_rate, HZ);  in sun5i_rate_cb_clkevt()
261 	struct sun5i_timer_clkevt *ce;  in sun5i_setup_clockevent()  local
266 	ce = kzalloc(sizeof(*ce), GFP_KERNEL);  in sun5i_setup_clockevent()
267 	if (!ce)  in sun5i_setup_clockevent()
278 	ce->timer.base = base;  in sun5i_setup_clockevent()
279 	ce->timer.ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);  in sun5i_setup_clockevent()
280 	ce->timer.clk = clk;  in sun5i_setup_clockevent()
281 	ce->timer.clk_rate_cb.notifier_call = sun5i_rate_cb_clkevt;  in sun5i_setup_clockevent()
282 	ce->timer.clk_rate_cb.next = NULL;  in sun5i_setup_clockevent()
284 	ret = clk_notifier_register(clk, &ce->timer.clk_rate_cb);  in sun5i_setup_clockevent()
290 	ce->clkevt.name = node->name;  in sun5i_setup_clockevent()
291 	ce->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;  in sun5i_setup_clockevent()
292 	ce->clkevt.set_next_event = sun5i_clkevt_next_event;  in sun5i_setup_clockevent()
293 	ce->clkevt.set_state_shutdown = sun5i_clkevt_shutdown;  in sun5i_setup_clockevent()
294 	ce->clkevt.set_state_periodic = sun5i_clkevt_set_periodic;  in sun5i_setup_clockevent()
295 	ce->clkevt.set_state_oneshot = sun5i_clkevt_set_oneshot;  in sun5i_setup_clockevent()
296 	ce->clkevt.tick_resume = sun5i_clkevt_shutdown;  in sun5i_setup_clockevent()
297 	ce->clkevt.rating = 340;  in sun5i_setup_clockevent()
298 	ce->clkevt.irq = irq;  in sun5i_setup_clockevent()
299 	ce->clkevt.cpumask = cpu_possible_mask;  in sun5i_setup_clockevent()
305 	clockevents_config_and_register(&ce->clkevt, rate,  in sun5i_setup_clockevent()
309 			  "sun5i_timer0", ce);  in sun5i_setup_clockevent()
318 	clk_notifier_unregister(clk, &ce->timer.clk_rate_cb);  in sun5i_setup_clockevent()
322 	kfree(ce);  in sun5i_setup_clockevent()