71 static inline u32 omap_dm_timer_read_reg(struct omap_dm_timer *timer, u32 reg)  in omap_dm_timer_read_reg()  argument
74 	return __omap_dm_timer_read(timer, reg, timer->posted);  in omap_dm_timer_read_reg()
87 static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg,  in omap_dm_timer_write_reg()  argument
91 	__omap_dm_timer_write(timer, reg, value, timer->posted);  in omap_dm_timer_write_reg()
94 static void omap_timer_restore_context(struct omap_dm_timer *timer)  in omap_timer_restore_context()  argument
96 	omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG,  in omap_timer_restore_context()
97 				timer->context.twer);  in omap_timer_restore_context()
98 	omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG,  in omap_timer_restore_context()
99 				timer->context.tcrr);  in omap_timer_restore_context()
100 	omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG,  in omap_timer_restore_context()
101 				timer->context.tldr);  in omap_timer_restore_context()
102 	omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG,  in omap_timer_restore_context()
103 				timer->context.tmar);  in omap_timer_restore_context()
104 	omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG,  in omap_timer_restore_context()
105 				timer->context.tsicr);  in omap_timer_restore_context()
106 	writel_relaxed(timer->context.tier, timer->irq_ena);  in omap_timer_restore_context()
107 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG,  in omap_timer_restore_context()
108 				timer->context.tclr);  in omap_timer_restore_context()
111 static int omap_dm_timer_reset(struct omap_dm_timer *timer)  in omap_dm_timer_reset()  argument
115 	if (timer->revision != 1)  in omap_dm_timer_reset()
118 	omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);  in omap_dm_timer_reset()
121 		l = __omap_dm_timer_read(timer,  in omap_dm_timer_reset()
126 		dev_err(&timer->pdev->dev, "Timer failed to reset\n");  in omap_dm_timer_reset()
131 	l = __omap_dm_timer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET, 0);  in omap_dm_timer_reset()
133 	__omap_dm_timer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET, l, 0);  in omap_dm_timer_reset()
135 	timer->posted = 0;  in omap_dm_timer_reset()
140 static int omap_dm_timer_prepare(struct omap_dm_timer *timer)  in omap_dm_timer_prepare()  argument
148 	if (!(timer->capability & OMAP_TIMER_NEEDS_RESET)) {  in omap_dm_timer_prepare()
149 		timer->fclk = clk_get(&timer->pdev->dev, "fck");  in omap_dm_timer_prepare()
150 		if (WARN_ON_ONCE(IS_ERR(timer->fclk))) {  in omap_dm_timer_prepare()
151 			dev_err(&timer->pdev->dev, ": No fclk handle.\n");  in omap_dm_timer_prepare()
156 	omap_dm_timer_enable(timer);  in omap_dm_timer_prepare()
158 	if (timer->capability & OMAP_TIMER_NEEDS_RESET) {  in omap_dm_timer_prepare()
159 		rc = omap_dm_timer_reset(timer);  in omap_dm_timer_prepare()
161 			omap_dm_timer_disable(timer);  in omap_dm_timer_prepare()
166 	__omap_dm_timer_enable_posted(timer);  in omap_dm_timer_prepare()
167 	omap_dm_timer_disable(timer);  in omap_dm_timer_prepare()
169 	return omap_dm_timer_set_source(timer, OMAP_TIMER_SRC_32_KHZ);  in omap_dm_timer_prepare()
189 	struct omap_dm_timer *timer = NULL, *t;  in _omap_dm_timer_request()  local
218 				timer = t;  in _omap_dm_timer_request()
219 				timer->reserved = 1;  in _omap_dm_timer_request()
233 				if (timer)  in _omap_dm_timer_request()
234 					timer->reserved = 0;  in _omap_dm_timer_request()
235 				timer = t;  in _omap_dm_timer_request()
236 				timer->reserved = 1;  in _omap_dm_timer_request()
245 				timer = t;  in _omap_dm_timer_request()
246 				timer->reserved = 1;  in _omap_dm_timer_request()
252 			timer = t;  in _omap_dm_timer_request()
253 			timer->reserved = 1;  in _omap_dm_timer_request()
260 	if (timer && omap_dm_timer_prepare(timer)) {  in _omap_dm_timer_request()
261 		timer->reserved = 0;  in _omap_dm_timer_request()
262 		timer = NULL;  in _omap_dm_timer_request()
265 	if (!timer)  in _omap_dm_timer_request()
268 	return timer;  in _omap_dm_timer_request()
321 int omap_dm_timer_free(struct omap_dm_timer *timer)  in omap_dm_timer_free()  argument
323 	if (unlikely(!timer))  in omap_dm_timer_free()
326 	clk_put(timer->fclk);  in omap_dm_timer_free()
328 	WARN_ON(!timer->reserved);  in omap_dm_timer_free()
329 	timer->reserved = 0;  in omap_dm_timer_free()
334 void omap_dm_timer_enable(struct omap_dm_timer *timer)  in omap_dm_timer_enable()  argument
338 	pm_runtime_get_sync(&timer->pdev->dev);  in omap_dm_timer_enable()
340 	if (!(timer->capability & OMAP_TIMER_ALWON)) {  in omap_dm_timer_enable()
341 		if (timer->get_context_loss_count) {  in omap_dm_timer_enable()
342 			c = timer->get_context_loss_count(&timer->pdev->dev);  in omap_dm_timer_enable()
343 			if (c != timer->ctx_loss_count) {  in omap_dm_timer_enable()
344 				omap_timer_restore_context(timer);  in omap_dm_timer_enable()
345 				timer->ctx_loss_count = c;  in omap_dm_timer_enable()
348 			omap_timer_restore_context(timer);  in omap_dm_timer_enable()
354 void omap_dm_timer_disable(struct omap_dm_timer *timer)  in omap_dm_timer_disable()  argument
356 	pm_runtime_put_sync(&timer->pdev->dev);  in omap_dm_timer_disable()
360 int omap_dm_timer_get_irq(struct omap_dm_timer *timer)  in omap_dm_timer_get_irq()  argument
362 	if (timer)  in omap_dm_timer_get_irq()
363 		return timer->irq;  in omap_dm_timer_get_irq()
377 	struct omap_dm_timer *timer = NULL;  in omap_dm_timer_modify_idlect_mask()  local
386 	list_for_each_entry(timer, &omap_timer_list, node) {  in omap_dm_timer_modify_idlect_mask()
389 		l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_modify_idlect_mask()
406 struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)  in omap_dm_timer_get_fclk()  argument
408 	if (timer && !IS_ERR(timer->fclk))  in omap_dm_timer_get_fclk()
409 		return timer->fclk;  in omap_dm_timer_get_fclk()
424 int omap_dm_timer_trigger(struct omap_dm_timer *timer)  in omap_dm_timer_trigger()  argument
426 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_trigger()
431 	omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);  in omap_dm_timer_trigger()
436 int omap_dm_timer_start(struct omap_dm_timer *timer)  in omap_dm_timer_start()  argument
440 	if (unlikely(!timer))  in omap_dm_timer_start()
443 	omap_dm_timer_enable(timer);  in omap_dm_timer_start()
445 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_start()
448 		omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_start()
452 	timer->context.tclr = l;  in omap_dm_timer_start()
457 int omap_dm_timer_stop(struct omap_dm_timer *timer)  in omap_dm_timer_stop()  argument
461 	if (unlikely(!timer))  in omap_dm_timer_stop()
464 	if (!(timer->capability & OMAP_TIMER_NEEDS_RESET))  in omap_dm_timer_stop()
465 		rate = clk_get_rate(timer->fclk);  in omap_dm_timer_stop()
467 	__omap_dm_timer_stop(timer, timer->posted, rate);  in omap_dm_timer_stop()
474 	timer->context.tclr =  in omap_dm_timer_stop()
475 			omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_stop()
476 	omap_dm_timer_disable(timer);  in omap_dm_timer_stop()
481 int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)  in omap_dm_timer_set_source()  argument
488 	if (unlikely(!timer))  in omap_dm_timer_set_source()
491 	pdata = timer->pdev->dev.platform_data;  in omap_dm_timer_set_source()
502 		return pdata->set_timer_src(timer->pdev, source);  in omap_dm_timer_set_source()
504 	if (IS_ERR(timer->fclk))  in omap_dm_timer_set_source()
521 	parent = clk_get(&timer->pdev->dev, parent_name);  in omap_dm_timer_set_source()
527 	ret = clk_set_parent(timer->fclk, parent);  in omap_dm_timer_set_source()
538 int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,  in omap_dm_timer_set_load()  argument
543 	if (unlikely(!timer))  in omap_dm_timer_set_load()
546 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_load()
547 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_load()
552 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_load()
553 	omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG, load);  in omap_dm_timer_set_load()
555 	omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);  in omap_dm_timer_set_load()
557 	timer->context.tclr = l;  in omap_dm_timer_set_load()
558 	timer->context.tldr = load;  in omap_dm_timer_set_load()
559 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_load()
565 int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,  in omap_dm_timer_set_load_start()  argument
570 	if (unlikely(!timer))  in omap_dm_timer_set_load_start()
573 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_load_start()
575 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_load_start()
578 		omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG, load);  in omap_dm_timer_set_load_start()
584 	__omap_dm_timer_load_start(timer, l, load, timer->posted);  in omap_dm_timer_set_load_start()
587 	timer->context.tclr = l;  in omap_dm_timer_set_load_start()
588 	timer->context.tldr = load;  in omap_dm_timer_set_load_start()
589 	timer->context.tcrr = load;  in omap_dm_timer_set_load_start()
594 int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,  in omap_dm_timer_set_match()  argument
599 	if (unlikely(!timer))  in omap_dm_timer_set_match()
602 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_match()
603 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_match()
608 	omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG, match);  in omap_dm_timer_set_match()
609 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_match()
612 	timer->context.tclr = l;  in omap_dm_timer_set_match()
613 	timer->context.tmar = match;  in omap_dm_timer_set_match()
614 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_match()
619 int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,  in omap_dm_timer_set_pwm()  argument
624 	if (unlikely(!timer))  in omap_dm_timer_set_pwm()
627 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_pwm()
628 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_pwm()
636 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_pwm()
639 	timer->context.tclr = l;  in omap_dm_timer_set_pwm()
640 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_pwm()
645 int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer, int prescaler)  in omap_dm_timer_set_prescaler()  argument
649 	if (unlikely(!timer))  in omap_dm_timer_set_prescaler()
652 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_prescaler()
653 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_prescaler()
659 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_prescaler()
662 	timer->context.tclr = l;  in omap_dm_timer_set_prescaler()
663 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_prescaler()
668 int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,  in omap_dm_timer_set_int_enable()  argument
671 	if (unlikely(!timer))  in omap_dm_timer_set_int_enable()
674 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_int_enable()
675 	__omap_dm_timer_int_enable(timer, value);  in omap_dm_timer_set_int_enable()
678 	timer->context.tier = value;  in omap_dm_timer_set_int_enable()
679 	timer->context.twer = value;  in omap_dm_timer_set_int_enable()
680 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_int_enable()
692 int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask)  in omap_dm_timer_set_int_disable()  argument
696 	if (unlikely(!timer))  in omap_dm_timer_set_int_disable()
699 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_int_disable()
701 	if (timer->revision == 1)  in omap_dm_timer_set_int_disable()
702 		l = readl_relaxed(timer->irq_ena) & ~mask;  in omap_dm_timer_set_int_disable()
704 	writel_relaxed(l, timer->irq_dis);  in omap_dm_timer_set_int_disable()
705 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_WAKEUP_EN_REG) & ~mask;  in omap_dm_timer_set_int_disable()
706 	omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, l);  in omap_dm_timer_set_int_disable()
709 	timer->context.tier &= ~mask;  in omap_dm_timer_set_int_disable()
710 	timer->context.twer &= ~mask;  in omap_dm_timer_set_int_disable()
711 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_int_disable()
716 unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)  in omap_dm_timer_read_status()  argument
720 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_read_status()
725 	l = readl_relaxed(timer->irq_stat);  in omap_dm_timer_read_status()
731 int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)  in omap_dm_timer_write_status()  argument
733 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev)))  in omap_dm_timer_write_status()
736 	__omap_dm_timer_write_status(timer, value);  in omap_dm_timer_write_status()
742 unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)  in omap_dm_timer_read_counter()  argument
744 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_read_counter()
749 	return __omap_dm_timer_read_counter(timer, timer->posted);  in omap_dm_timer_read_counter()
753 int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)  in omap_dm_timer_write_counter()  argument
755 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_write_counter()
760 	omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, value);  in omap_dm_timer_write_counter()
763 	timer->context.tcrr = value;  in omap_dm_timer_write_counter()
770 	struct omap_dm_timer *timer;  in omap_dm_timers_active()  local
772 	list_for_each_entry(timer, &omap_timer_list, node) {  in omap_dm_timers_active()
773 		if (!timer->reserved)  in omap_dm_timers_active()
776 		if (omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG) &  in omap_dm_timers_active()
797 	struct omap_dm_timer *timer;  in omap_dm_timer_probe()  local
824 	timer = devm_kzalloc(dev, sizeof(struct omap_dm_timer), GFP_KERNEL);  in omap_dm_timer_probe()
825 	if (!timer) {  in omap_dm_timer_probe()
830 	timer->fclk = ERR_PTR(-ENODEV);  in omap_dm_timer_probe()
831 	timer->io_base = devm_ioremap_resource(dev, mem);  in omap_dm_timer_probe()
832 	if (IS_ERR(timer->io_base))  in omap_dm_timer_probe()
833 		return PTR_ERR(timer->io_base);  in omap_dm_timer_probe()
837 			timer->capability |= OMAP_TIMER_ALWON;  in omap_dm_timer_probe()
839 			timer->capability |= OMAP_TIMER_HAS_DSP_IRQ;  in omap_dm_timer_probe()
841 			timer->capability |= OMAP_TIMER_HAS_PWM;  in omap_dm_timer_probe()
843 			timer->capability |= OMAP_TIMER_SECURE;  in omap_dm_timer_probe()
845 		timer->id = pdev->id;  in omap_dm_timer_probe()
846 		timer->capability = pdata->timer_capability;  in omap_dm_timer_probe()
847 		timer->reserved = omap_dm_timer_reserved_systimer(timer->id);  in omap_dm_timer_probe()
848 		timer->get_context_loss_count = pdata->get_context_loss_count;  in omap_dm_timer_probe()
852 		timer->errata = pdata->timer_errata;  in omap_dm_timer_probe()
854 	timer->irq = irq->start;  in omap_dm_timer_probe()
855 	timer->pdev = pdev;  in omap_dm_timer_probe()
858 	if (!(timer->capability & OMAP_TIMER_NEEDS_RESET)) {  in omap_dm_timer_probe()
863 	if (!timer->reserved) {  in omap_dm_timer_probe()
870 		__omap_dm_timer_init_regs(timer);  in omap_dm_timer_probe()
876 	list_add_tail(&timer->node, &omap_timer_list);  in omap_dm_timer_probe()
899 	struct omap_dm_timer *timer;  in omap_dm_timer_remove()  local
904 	list_for_each_entry(timer, &omap_timer_list, node)  in omap_dm_timer_remove()
905 		if (!strcmp(dev_name(&timer->pdev->dev),  in omap_dm_timer_remove()
907 			list_del(&timer->node);  in omap_dm_timer_remove()