72 static inline u32 omap_dm_timer_read_reg(struct omap_dm_timer *timer, u32 reg)  in omap_dm_timer_read_reg()  argument
75 	return __omap_dm_timer_read(timer, reg, timer->posted);  in omap_dm_timer_read_reg()
88 static void omap_dm_timer_write_reg(struct omap_dm_timer *timer, u32 reg,  in omap_dm_timer_write_reg()  argument
92 	__omap_dm_timer_write(timer, reg, value, timer->posted);  in omap_dm_timer_write_reg()
95 static void omap_timer_restore_context(struct omap_dm_timer *timer)  in omap_timer_restore_context()  argument
97 	omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG,  in omap_timer_restore_context()
98 				timer->context.twer);  in omap_timer_restore_context()
99 	omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG,  in omap_timer_restore_context()
100 				timer->context.tcrr);  in omap_timer_restore_context()
101 	omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG,  in omap_timer_restore_context()
102 				timer->context.tldr);  in omap_timer_restore_context()
103 	omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG,  in omap_timer_restore_context()
104 				timer->context.tmar);  in omap_timer_restore_context()
105 	omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG,  in omap_timer_restore_context()
106 				timer->context.tsicr);  in omap_timer_restore_context()
107 	writel_relaxed(timer->context.tier, timer->irq_ena);  in omap_timer_restore_context()
108 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG,  in omap_timer_restore_context()
109 				timer->context.tclr);  in omap_timer_restore_context()
112 static int omap_dm_timer_reset(struct omap_dm_timer *timer)  in omap_dm_timer_reset()  argument
116 	if (timer->revision != 1)  in omap_dm_timer_reset()
119 	omap_dm_timer_write_reg(timer, OMAP_TIMER_IF_CTRL_REG, 0x06);  in omap_dm_timer_reset()
122 		l = __omap_dm_timer_read(timer,  in omap_dm_timer_reset()
127 		dev_err(&timer->pdev->dev, "Timer failed to reset\n");  in omap_dm_timer_reset()
132 	l = __omap_dm_timer_read(timer, OMAP_TIMER_OCP_CFG_OFFSET, 0);  in omap_dm_timer_reset()
134 	__omap_dm_timer_write(timer, OMAP_TIMER_OCP_CFG_OFFSET, l, 0);  in omap_dm_timer_reset()
136 	timer->posted = 0;  in omap_dm_timer_reset()
141 static int omap_dm_timer_of_set_source(struct omap_dm_timer *timer)  in omap_dm_timer_of_set_source()  argument
150 	if (!timer->fclk)  in omap_dm_timer_of_set_source()
153 	parent = clk_get(&timer->pdev->dev, NULL);  in omap_dm_timer_of_set_source()
157 	ret = clk_set_parent(timer->fclk, parent);  in omap_dm_timer_of_set_source()
166 static int omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)  in omap_dm_timer_set_source()  argument
173 	if (unlikely(!timer) || IS_ERR(timer->fclk))  in omap_dm_timer_set_source()
190 	pdata = timer->pdev->dev.platform_data;  in omap_dm_timer_set_source()
198 		return pdata->set_timer_src(timer->pdev, source);  in omap_dm_timer_set_source()
202 	if (clk_hw_get_num_parents(__clk_get_hw(timer->fclk)) < 2)  in omap_dm_timer_set_source()
206 	parent = clk_get(&timer->pdev->dev, parent_name);  in omap_dm_timer_set_source()
212 	ret = clk_set_parent(timer->fclk, parent);  in omap_dm_timer_set_source()
222 static void omap_dm_timer_enable(struct omap_dm_timer *timer)  in omap_dm_timer_enable()  argument
226 	pm_runtime_get_sync(&timer->pdev->dev);  in omap_dm_timer_enable()
228 	if (!(timer->capability & OMAP_TIMER_ALWON)) {  in omap_dm_timer_enable()
229 		if (timer->get_context_loss_count) {  in omap_dm_timer_enable()
230 			c = timer->get_context_loss_count(&timer->pdev->dev);  in omap_dm_timer_enable()
231 			if (c != timer->ctx_loss_count) {  in omap_dm_timer_enable()
232 				omap_timer_restore_context(timer);  in omap_dm_timer_enable()
233 				timer->ctx_loss_count = c;  in omap_dm_timer_enable()
236 			omap_timer_restore_context(timer);  in omap_dm_timer_enable()
241 static void omap_dm_timer_disable(struct omap_dm_timer *timer)  in omap_dm_timer_disable()  argument
243 	pm_runtime_put_sync(&timer->pdev->dev);  in omap_dm_timer_disable()
246 static int omap_dm_timer_prepare(struct omap_dm_timer *timer)  in omap_dm_timer_prepare()  argument
254 	if (!(timer->capability & OMAP_TIMER_NEEDS_RESET)) {  in omap_dm_timer_prepare()
255 		timer->fclk = clk_get(&timer->pdev->dev, "fck");  in omap_dm_timer_prepare()
256 		if (WARN_ON_ONCE(IS_ERR(timer->fclk))) {  in omap_dm_timer_prepare()
257 			dev_err(&timer->pdev->dev, ": No fclk handle.\n");  in omap_dm_timer_prepare()
262 	omap_dm_timer_enable(timer);  in omap_dm_timer_prepare()
264 	if (timer->capability & OMAP_TIMER_NEEDS_RESET) {  in omap_dm_timer_prepare()
265 		rc = omap_dm_timer_reset(timer);  in omap_dm_timer_prepare()
267 			omap_dm_timer_disable(timer);  in omap_dm_timer_prepare()
272 	__omap_dm_timer_enable_posted(timer);  in omap_dm_timer_prepare()
273 	omap_dm_timer_disable(timer);  in omap_dm_timer_prepare()
275 	rc = omap_dm_timer_of_set_source(timer);  in omap_dm_timer_prepare()
277 		return omap_dm_timer_set_source(timer, OMAP_TIMER_SRC_32_KHZ);  in omap_dm_timer_prepare()
299 	struct omap_dm_timer *timer = NULL, *t;  in _omap_dm_timer_request()  local
328 				timer = t;  in _omap_dm_timer_request()
329 				timer->reserved = 1;  in _omap_dm_timer_request()
343 				if (timer)  in _omap_dm_timer_request()
344 					timer->reserved = 0;  in _omap_dm_timer_request()
345 				timer = t;  in _omap_dm_timer_request()
346 				timer->reserved = 1;  in _omap_dm_timer_request()
355 				timer = t;  in _omap_dm_timer_request()
356 				timer->reserved = 1;  in _omap_dm_timer_request()
362 			timer = t;  in _omap_dm_timer_request()
363 			timer->reserved = 1;  in _omap_dm_timer_request()
370 	if (timer && omap_dm_timer_prepare(timer)) {  in _omap_dm_timer_request()
371 		timer->reserved = 0;  in _omap_dm_timer_request()
372 		timer = NULL;  in _omap_dm_timer_request()
375 	if (!timer)  in _omap_dm_timer_request()
378 	return timer;  in _omap_dm_timer_request()
427 static int omap_dm_timer_free(struct omap_dm_timer *timer)  in omap_dm_timer_free()  argument
429 	if (unlikely(!timer))  in omap_dm_timer_free()
432 	clk_put(timer->fclk);  in omap_dm_timer_free()
434 	WARN_ON(!timer->reserved);  in omap_dm_timer_free()
435 	timer->reserved = 0;  in omap_dm_timer_free()
439 int omap_dm_timer_get_irq(struct omap_dm_timer *timer)  in omap_dm_timer_get_irq()  argument
441 	if (timer)  in omap_dm_timer_get_irq()
442 		return timer->irq;  in omap_dm_timer_get_irq()
449 static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)  in omap_dm_timer_get_fclk()  argument
461 	struct omap_dm_timer *timer = NULL;  in omap_dm_timer_modify_idlect_mask()  local
470 	list_for_each_entry(timer, &omap_timer_list, node) {  in omap_dm_timer_modify_idlect_mask()
473 		l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_modify_idlect_mask()
489 static struct clk *omap_dm_timer_get_fclk(struct omap_dm_timer *timer)  in omap_dm_timer_get_fclk()  argument
491 	if (timer && !IS_ERR(timer->fclk))  in omap_dm_timer_get_fclk()
492 		return timer->fclk;  in omap_dm_timer_get_fclk()
505 int omap_dm_timer_trigger(struct omap_dm_timer *timer)  in omap_dm_timer_trigger()  argument
507 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_trigger()
512 	omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);  in omap_dm_timer_trigger()
516 static int omap_dm_timer_start(struct omap_dm_timer *timer)  in omap_dm_timer_start()  argument
520 	if (unlikely(!timer))  in omap_dm_timer_start()
523 	omap_dm_timer_enable(timer);  in omap_dm_timer_start()
525 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_start()
528 		omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_start()
532 	timer->context.tclr = l;  in omap_dm_timer_start()
536 static int omap_dm_timer_stop(struct omap_dm_timer *timer)  in omap_dm_timer_stop()  argument
540 	if (unlikely(!timer))  in omap_dm_timer_stop()
543 	if (!(timer->capability & OMAP_TIMER_NEEDS_RESET))  in omap_dm_timer_stop()
544 		rate = clk_get_rate(timer->fclk);  in omap_dm_timer_stop()
546 	__omap_dm_timer_stop(timer, timer->posted, rate);  in omap_dm_timer_stop()
553 	timer->context.tclr =  in omap_dm_timer_stop()
554 			omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_stop()
555 	omap_dm_timer_disable(timer);  in omap_dm_timer_stop()
559 static int omap_dm_timer_set_load(struct omap_dm_timer *timer, int autoreload,  in omap_dm_timer_set_load()  argument
564 	if (unlikely(!timer))  in omap_dm_timer_set_load()
567 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_load()
568 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_load()
573 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_load()
574 	omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG, load);  in omap_dm_timer_set_load()
576 	omap_dm_timer_write_reg(timer, OMAP_TIMER_TRIGGER_REG, 0);  in omap_dm_timer_set_load()
578 	timer->context.tclr = l;  in omap_dm_timer_set_load()
579 	timer->context.tldr = load;  in omap_dm_timer_set_load()
580 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_load()
585 int omap_dm_timer_set_load_start(struct omap_dm_timer *timer, int autoreload,  in omap_dm_timer_set_load_start()  argument
590 	if (unlikely(!timer))  in omap_dm_timer_set_load_start()
593 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_load_start()
595 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_load_start()
598 		omap_dm_timer_write_reg(timer, OMAP_TIMER_LOAD_REG, load);  in omap_dm_timer_set_load_start()
604 	__omap_dm_timer_load_start(timer, l, load, timer->posted);  in omap_dm_timer_set_load_start()
607 	timer->context.tclr = l;  in omap_dm_timer_set_load_start()
608 	timer->context.tldr = load;  in omap_dm_timer_set_load_start()
609 	timer->context.tcrr = load;  in omap_dm_timer_set_load_start()
612 static int omap_dm_timer_set_match(struct omap_dm_timer *timer, int enable,  in omap_dm_timer_set_match()  argument
617 	if (unlikely(!timer))  in omap_dm_timer_set_match()
620 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_match()
621 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_match()
626 	omap_dm_timer_write_reg(timer, OMAP_TIMER_MATCH_REG, match);  in omap_dm_timer_set_match()
627 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_match()
630 	timer->context.tclr = l;  in omap_dm_timer_set_match()
631 	timer->context.tmar = match;  in omap_dm_timer_set_match()
632 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_match()
636 static int omap_dm_timer_set_pwm(struct omap_dm_timer *timer, int def_on,  in omap_dm_timer_set_pwm()  argument
641 	if (unlikely(!timer))  in omap_dm_timer_set_pwm()
644 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_pwm()
645 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_pwm()
653 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_pwm()
656 	timer->context.tclr = l;  in omap_dm_timer_set_pwm()
657 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_pwm()
661 static int omap_dm_timer_set_prescaler(struct omap_dm_timer *timer,  in omap_dm_timer_set_prescaler()  argument
666 	if (unlikely(!timer) || prescaler < -1 || prescaler > 7)  in omap_dm_timer_set_prescaler()
669 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_prescaler()
670 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG);  in omap_dm_timer_set_prescaler()
676 	omap_dm_timer_write_reg(timer, OMAP_TIMER_CTRL_REG, l);  in omap_dm_timer_set_prescaler()
679 	timer->context.tclr = l;  in omap_dm_timer_set_prescaler()
680 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_prescaler()
684 static int omap_dm_timer_set_int_enable(struct omap_dm_timer *timer,  in omap_dm_timer_set_int_enable()  argument
687 	if (unlikely(!timer))  in omap_dm_timer_set_int_enable()
690 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_int_enable()
691 	__omap_dm_timer_int_enable(timer, value);  in omap_dm_timer_set_int_enable()
694 	timer->context.tier = value;  in omap_dm_timer_set_int_enable()
695 	timer->context.twer = value;  in omap_dm_timer_set_int_enable()
696 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_int_enable()
707 static int omap_dm_timer_set_int_disable(struct omap_dm_timer *timer, u32 mask)  in omap_dm_timer_set_int_disable()  argument
711 	if (unlikely(!timer))  in omap_dm_timer_set_int_disable()
714 	omap_dm_timer_enable(timer);  in omap_dm_timer_set_int_disable()
716 	if (timer->revision == 1)  in omap_dm_timer_set_int_disable()
717 		l = readl_relaxed(timer->irq_ena) & ~mask;  in omap_dm_timer_set_int_disable()
719 	writel_relaxed(l, timer->irq_dis);  in omap_dm_timer_set_int_disable()
720 	l = omap_dm_timer_read_reg(timer, OMAP_TIMER_WAKEUP_EN_REG) & ~mask;  in omap_dm_timer_set_int_disable()
721 	omap_dm_timer_write_reg(timer, OMAP_TIMER_WAKEUP_EN_REG, l);  in omap_dm_timer_set_int_disable()
724 	timer->context.tier &= ~mask;  in omap_dm_timer_set_int_disable()
725 	timer->context.twer &= ~mask;  in omap_dm_timer_set_int_disable()
726 	omap_dm_timer_disable(timer);  in omap_dm_timer_set_int_disable()
730 static unsigned int omap_dm_timer_read_status(struct omap_dm_timer *timer)  in omap_dm_timer_read_status()  argument
734 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_read_status()
739 	l = readl_relaxed(timer->irq_stat);  in omap_dm_timer_read_status()
744 static int omap_dm_timer_write_status(struct omap_dm_timer *timer, unsigned int value)  in omap_dm_timer_write_status()  argument
746 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev)))  in omap_dm_timer_write_status()
749 	__omap_dm_timer_write_status(timer, value);  in omap_dm_timer_write_status()
754 static unsigned int omap_dm_timer_read_counter(struct omap_dm_timer *timer)  in omap_dm_timer_read_counter()  argument
756 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_read_counter()
761 	return __omap_dm_timer_read_counter(timer, timer->posted);  in omap_dm_timer_read_counter()
764 static int omap_dm_timer_write_counter(struct omap_dm_timer *timer, unsigned int value)  in omap_dm_timer_write_counter()  argument
766 	if (unlikely(!timer || pm_runtime_suspended(&timer->pdev->dev))) {  in omap_dm_timer_write_counter()
771 	omap_dm_timer_write_reg(timer, OMAP_TIMER_COUNTER_REG, value);  in omap_dm_timer_write_counter()
774 	timer->context.tcrr = value;  in omap_dm_timer_write_counter()
780 	struct omap_dm_timer *timer;  in omap_dm_timers_active()  local
782 	list_for_each_entry(timer, &omap_timer_list, node) {  in omap_dm_timers_active()
783 		if (!timer->reserved)  in omap_dm_timers_active()
786 		if (omap_dm_timer_read_reg(timer, OMAP_TIMER_CTRL_REG) &  in omap_dm_timers_active()
806 	struct omap_dm_timer *timer;  in omap_dm_timer_probe()  local
835 	timer = devm_kzalloc(dev, sizeof(*timer), GFP_KERNEL);  in omap_dm_timer_probe()
836 	if (!timer)  in omap_dm_timer_probe()
839 	timer->fclk = ERR_PTR(-ENODEV);  in omap_dm_timer_probe()
840 	timer->io_base = devm_ioremap_resource(dev, mem);  in omap_dm_timer_probe()
841 	if (IS_ERR(timer->io_base))  in omap_dm_timer_probe()
842 		return PTR_ERR(timer->io_base);  in omap_dm_timer_probe()
846 			timer->capability |= OMAP_TIMER_ALWON;  in omap_dm_timer_probe()
848 			timer->capability |= OMAP_TIMER_HAS_DSP_IRQ;  in omap_dm_timer_probe()
850 			timer->capability |= OMAP_TIMER_HAS_PWM;  in omap_dm_timer_probe()
852 			timer->capability |= OMAP_TIMER_SECURE;  in omap_dm_timer_probe()
854 		timer->id = pdev->id;  in omap_dm_timer_probe()
855 		timer->capability = pdata->timer_capability;  in omap_dm_timer_probe()
856 		timer->reserved = omap_dm_timer_reserved_systimer(timer->id);  in omap_dm_timer_probe()
857 		timer->get_context_loss_count = pdata->get_context_loss_count;  in omap_dm_timer_probe()
861 		timer->errata = pdata->timer_errata;  in omap_dm_timer_probe()
863 	timer->irq = irq->start;  in omap_dm_timer_probe()
864 	timer->pdev = pdev;  in omap_dm_timer_probe()
869 	if (!timer->reserved) {  in omap_dm_timer_probe()
876 		__omap_dm_timer_init_regs(timer);  in omap_dm_timer_probe()
882 	list_add_tail(&timer->node, &omap_timer_list);  in omap_dm_timer_probe()
905 	struct omap_dm_timer *timer;  in omap_dm_timer_remove()  local
910 	list_for_each_entry(timer, &omap_timer_list, node)  in omap_dm_timer_remove()
911 		if (!strcmp(dev_name(&timer->pdev->dev),  in omap_dm_timer_remove()
913 			list_del(&timer->node);  in omap_dm_timer_remove()