net: ipa: use dev PM wakeirq handling

Replace the enable_irq_wake() call with one to dev_pm_set_wake_irq()
instead. This will let the dev PM framework automatically manage the
the wakeup capability of the ipa IRQ and ensure that userspace requests
to enable/disable wakeup for the IPA via sysfs are respected.

Signed-off-by: Caleb Connolly <[e-mail]>
Reviewed-by: Alex Elder <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Paolo Abeni <[e-mail]>

drivers/net/ipa/ipa_interrupt.c

···
 #include <linux/types.h>
 #include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_wakeirq.h>
 
 #include "ipa.h"
 #include "ipa_reg.h"
···
 		goto err_kfree;
 	}
 
-	ret = enable_irq_wake(irq);
+	ret = dev_pm_set_wake_irq(dev, irq);
 	if (ret) {
-		dev_err(dev, "error %d enabling wakeup for \"ipa\" IRQ\n", ret);
+		dev_err(dev, "error %d registering \"ipa\" IRQ as wakeirq\n", ret);
 		goto err_free_irq;
 	}
 
···
 void ipa_interrupt_deconfig(struct ipa_interrupt *interrupt)
 {
 	struct device *dev = &interrupt->ipa->pdev->dev;
-	int ret;
 
-	ret = disable_irq_wake(interrupt->irq);
-	if (ret)
-		dev_err(dev, "error %d disabling \"ipa\" IRQ wakeup\n", ret);
+	dev_pm_clear_wake_irq(dev);
 	free_irq(interrupt->irq, interrupt);
 	kfree(interrupt);
 }