base/power/wakeirq.c

15  * @wirq: Wake irq specific data
19 static int dev_pm_attach_wake_irq(struct device *dev, struct wake_irq *wirq)
23 	if (!dev || !wirq)
33 	dev->power.wakeirq = wirq;
34 	device_wakeup_attach_irq(dev, wirq);
52 	struct wake_irq *wirq;
58 	wirq = kzalloc(sizeof(*wirq), GFP_KERNEL);
59 	if (!wirq)
62 	wirq->dev = dev;
63 	wirq->irq = irq;
65 	err = dev_pm_attach_wake_irq(dev, wirq);
67 		kfree(wirq);
86 	struct wake_irq *wirq = dev->power.wakeirq;
89 	if (!wirq)
97 	if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED) {
98 		free_irq(wirq->irq, wirq);
99 		wirq->status &= ~WAKE_IRQ_DEDICATED_MASK;
101 	kfree(wirq->name);
102 	kfree(wirq);
126 	struct wake_irq *wirq = _wirq;
131 		pm_wakeup_event(wirq->dev, 0);
137 	res = pm_runtime_resume(wirq->dev);
139 		dev_warn(wirq->dev,
147 	struct wake_irq *wirq;
153 	wirq = kzalloc(sizeof(*wirq), GFP_KERNEL);
154 	if (!wirq)
157 	wirq->name = kasprintf(GFP_KERNEL, "%s:wakeup", dev_name(dev));
158 	if (!wirq->name) {
163 	wirq->dev = dev;
164 	wirq->irq = irq;
175 				   wirq->name, wirq);
179 	err = dev_pm_attach_wake_irq(dev, wirq);
183 	wirq->status = WAKE_IRQ_DEDICATED_ALLOCATED | flag;
188 	free_irq(irq, wirq);
190 	kfree(wirq->name);
192 	kfree(wirq);
248  * Caller must hold &dev->power.lock to change wirq->status
253 	struct wake_irq *wirq = dev->power.wakeirq;
255 	if (!wirq || !(wirq->status & WAKE_IRQ_DEDICATED_MASK))
258 	if (likely(wirq->status & WAKE_IRQ_DEDICATED_MANAGED)) {
261 		wirq->status |= WAKE_IRQ_DEDICATED_MANAGED;
268 	if (!can_change_status || !(wirq->status & WAKE_IRQ_DEDICATED_REVERSE)) {
269 		enable_irq(wirq->irq);
270 		wirq->status |= WAKE_IRQ_DEDICATED_ENABLED;
284 	struct wake_irq *wirq = dev->power.wakeirq;
286 	if (!wirq || !(wirq->status & WAKE_IRQ_DEDICATED_MASK))
289 	if (cond_disable && (wirq->status & WAKE_IRQ_DEDICATED_REVERSE))
292 	if (wirq->status & WAKE_IRQ_DEDICATED_MANAGED) {
293 		wirq->status &= ~WAKE_IRQ_DEDICATED_ENABLED;
294 		disable_irq_nosync(wirq->irq);
310 	struct wake_irq *wirq = dev->power.wakeirq;
312 	if (!wirq || !(wirq->status & WAKE_IRQ_DEDICATED_MASK))
315 	if (wirq->status & WAKE_IRQ_DEDICATED_MANAGED &&
316 	    wirq->status & WAKE_IRQ_DEDICATED_REVERSE) {
317 		enable_irq(wirq->irq);
318 		wirq->status |= WAKE_IRQ_DEDICATED_ENABLED;
324  * @wirq: Device wake-up interrupt
329 void dev_pm_arm_wake_irq(struct wake_irq *wirq)
331 	if (!wirq)
334 	if (device_may_wakeup(wirq->dev)) {
335 		if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED &&
336 		    !(wirq->status & WAKE_IRQ_DEDICATED_ENABLED))
337 			enable_irq(wirq->irq);
339 		enable_irq_wake(wirq->irq);
345  * @wirq: Device wake-up interrupt
350 void dev_pm_disarm_wake_irq(struct wake_irq *wirq)
352 	if (!wirq)
355 	if (device_may_wakeup(wirq->dev)) {
356 		disable_irq_wake(wirq->irq);
358 		if (wirq->status & WAKE_IRQ_DEDICATED_ALLOCATED &&
359 		    !(wirq->status & WAKE_IRQ_DEDICATED_ENABLED))
360 			disable_irq_nosync(wirq->irq);