1 // SPDX-License-Identifier: GPL-2.0
18 	if (irqd_is_wakeup_armed(&desc->irq_data)) {  in irq_pm_check_wakeup()
19 		irqd_clear(&desc->irq_data, IRQD_WAKEUP_ARMED);  in irq_pm_check_wakeup()
20 		desc->istate |= IRQS_SUSPENDED | IRQS_PENDING;  in irq_pm_check_wakeup()
21 		desc->depth++;  in irq_pm_check_wakeup()
30  * Called from __setup_irq() with desc->lock held after @action has
35 	desc->nr_actions++;  in irq_pm_install_action()
37 	if (action->flags & IRQF_FORCE_RESUME)  in irq_pm_install_action()
38 		desc->force_resume_depth++;  in irq_pm_install_action()
40 	WARN_ON_ONCE(desc->force_resume_depth &&  in irq_pm_install_action()
41 		     desc->force_resume_depth != desc->nr_actions);  in irq_pm_install_action()
43 	if (action->flags & IRQF_NO_SUSPEND)  in irq_pm_install_action()
44 		desc->no_suspend_depth++;  in irq_pm_install_action()
45 	else if (action->flags & IRQF_COND_SUSPEND)  in irq_pm_install_action()
46 		desc->cond_suspend_depth++;  in irq_pm_install_action()
48 	WARN_ON_ONCE(desc->no_suspend_depth &&  in irq_pm_install_action()
49 		     (desc->no_suspend_depth +  in irq_pm_install_action()
50 			desc->cond_suspend_depth) != desc->nr_actions);  in irq_pm_install_action()
54  * Called from __free_irq() with desc->lock held after @action has
59 	desc->nr_actions--;  in irq_pm_remove_action()
61 	if (action->flags & IRQF_FORCE_RESUME)  in irq_pm_remove_action()
62 		desc->force_resume_depth--;  in irq_pm_remove_action()
64 	if (action->flags & IRQF_NO_SUSPEND)  in irq_pm_remove_action()
65 		desc->no_suspend_depth--;  in irq_pm_remove_action()
66 	else if (action->flags & IRQF_COND_SUSPEND)  in irq_pm_remove_action()
67 		desc->cond_suspend_depth--;  in irq_pm_remove_action()
72 	unsigned long chipflags = irq_desc_get_chip(desc)->flags;  in suspend_device_irq()
73 	struct irq_data *irqd = &desc->irq_data;  in suspend_device_irq()
75 	if (!desc->action || irq_desc_is_chained(desc) ||  in suspend_device_irq()
76 	    desc->no_suspend_depth)  in suspend_device_irq()
101 	desc->istate |= IRQS_SUSPENDED;  in suspend_device_irq()
106 	 * requires that the non wakeup interrupts are masked at the  in suspend_device_irq()
116  * suspend_device_irqs - disable all currently enabled interrupt lines
118  * During system-wide suspend or hibernation device drivers need to be
142 		raw_spin_lock_irqsave(&desc->lock, flags);  in suspend_device_irqs()
144 		raw_spin_unlock_irqrestore(&desc->lock, flags);  in suspend_device_irqs()
153 	struct irq_data *irqd = &desc->irq_data;  in resume_irq()
167 	if (desc->istate & IRQS_SUSPENDED)  in resume_irq()
171 	if (!desc->force_resume_depth)  in resume_irq()
175 	desc->depth++;  in resume_irq()
179 	desc->istate &= ~IRQS_SUSPENDED;  in resume_irq()
190 		bool is_early = desc->action &&  in resume_irqs()
191 			desc->action->flags & IRQF_EARLY_RESUME;  in resume_irqs()
198 		raw_spin_lock_irqsave(&desc->lock, flags);  in resume_irqs()
200 		raw_spin_unlock_irqrestore(&desc->lock, flags);  in resume_irqs()
205  * rearm_wake_irq - rearm a wakeup interrupt line after signaling wakeup
216 	if (!(desc->istate & IRQS_SUSPENDED) ||  in rearm_wake_irq()
217 	    !irqd_is_wakeup_set(&desc->irq_data))  in rearm_wake_irq()
220 	desc->istate &= ~IRQS_SUSPENDED;  in rearm_wake_irq()
221 	irqd_set(&desc->irq_data, IRQD_WAKEUP_ARMED);  in rearm_wake_irq()
229  * irq_pm_syscore_resume - enable interrupt lines early
251  * resume_device_irqs - enable interrupt lines disabled by suspend_device_irqs()
253  * Enable all non-%IRQF_EARLY_RESUME interrupt lines previously