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()
109 	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);  in sun5i_clkevt_mode()  local
113 		sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_mode()
114 		sun5i_clkevt_time_setup(ce, 0, ce->timer.ticks_per_jiffy);  in sun5i_clkevt_mode()
115 		sun5i_clkevt_time_start(ce, 0, true);  in sun5i_clkevt_mode()
118 		sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_mode()
119 		sun5i_clkevt_time_start(ce, 0, false);  in sun5i_clkevt_mode()
124 		sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_mode()
132 	struct sun5i_timer_clkevt *ce = to_sun5i_timer_clkevt(clkevt);  in sun5i_clkevt_next_event()  local
134 	sun5i_clkevt_time_stop(ce, 0);  in sun5i_clkevt_next_event()
135 	sun5i_clkevt_time_setup(ce, 0, evt - TIMER_SYNC_TICKS);  in sun5i_clkevt_next_event()
136 	sun5i_clkevt_time_start(ce, 0, false);  in sun5i_clkevt_next_event()
143 	struct sun5i_timer_clkevt *ce = (struct sun5i_timer_clkevt *)dev_id;  in sun5i_timer_interrupt()  local
145 	writel(0x1, ce->timer.base + TIMER_IRQ_ST_REG);  in sun5i_timer_interrupt()
146 	ce->clkevt.event_handler(&ce->clkevt);  in sun5i_timer_interrupt()
244 	struct sun5i_timer_clkevt *ce = container_of(timer, struct sun5i_timer_clkevt, timer);  in sun5i_rate_cb_clkevt()  local
247 		clockevents_update_freq(&ce->clkevt, ndata->new_rate);  in sun5i_rate_cb_clkevt()
248 		ce->timer.ticks_per_jiffy = DIV_ROUND_UP(ndata->new_rate, HZ);  in sun5i_rate_cb_clkevt()
257 	struct sun5i_timer_clkevt *ce;  in sun5i_setup_clockevent()  local
262 	ce = kzalloc(sizeof(*ce), GFP_KERNEL);  in sun5i_setup_clockevent()
263 	if (!ce)  in sun5i_setup_clockevent()
274 	ce->timer.base = base;  in sun5i_setup_clockevent()
275 	ce->timer.ticks_per_jiffy = DIV_ROUND_UP(rate, HZ);  in sun5i_setup_clockevent()
276 	ce->timer.clk = clk;  in sun5i_setup_clockevent()
277 	ce->timer.clk_rate_cb.notifier_call = sun5i_rate_cb_clkevt;  in sun5i_setup_clockevent()
278 	ce->timer.clk_rate_cb.next = NULL;  in sun5i_setup_clockevent()
280 	ret = clk_notifier_register(clk, &ce->timer.clk_rate_cb);  in sun5i_setup_clockevent()
286 	ce->clkevt.name = node->name;  in sun5i_setup_clockevent()
287 	ce->clkevt.features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;  in sun5i_setup_clockevent()
288 	ce->clkevt.set_next_event = sun5i_clkevt_next_event;  in sun5i_setup_clockevent()
289 	ce->clkevt.set_mode = sun5i_clkevt_mode;  in sun5i_setup_clockevent()
290 	ce->clkevt.rating = 340;  in sun5i_setup_clockevent()
291 	ce->clkevt.irq = irq;  in sun5i_setup_clockevent()
292 	ce->clkevt.cpumask = cpu_possible_mask;  in sun5i_setup_clockevent()
298 	clockevents_config_and_register(&ce->clkevt, rate,  in sun5i_setup_clockevent()
302 			  "sun5i_timer0", ce);  in sun5i_setup_clockevent()
311 	clk_notifier_unregister(clk, &ce->timer.clk_rate_cb);  in sun5i_setup_clockevent()
315 	kfree(ce);  in sun5i_setup_clockevent()