[PATCH net-next v2 6/7] net: ipa: enable wakeup on IPA interrupt

[Alex Elder]

Now that we handle wakeup interrupts properly, arrange for the IPA
interrupt to be treated as a wakeup interrupt.

Signed-off-by: Alex Elder <el...@linaro.org>
---
 drivers/net/ipa/ipa_interrupt.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/ipa/ipa_interrupt.c b/drivers/net/ipa/ipa_interrupt.c
index 90353987c45fc..cc1ea28f7bc2e 100644
--- a/drivers/net/ipa/ipa_interrupt.c
+++ b/drivers/net/ipa/ipa_interrupt.c
@@ -237,8 +237,16 @@ struct ipa_interrupt *ipa_interrupt_setup(struct ipa *ipa)
                goto err_kfree;
        }
 
+       ret = enable_irq_wake(irq);
+       if (ret) {
+               dev_err(dev, "error %d enabling wakeup for \"ipa\" IRQ\n", ret);
+               goto err_free_irq;
+       }
+
        return interrupt;
 
+err_free_irq:
+       free_irq(interrupt->irq, interrupt);
 err_kfree:
        kfree(interrupt);
 
@@ -248,6 +256,12 @@ struct ipa_interrupt *ipa_interrupt_setup(struct ipa *ipa)
 /* Tear down the IPA interrupt framework */
 void ipa_interrupt_teardown(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);
        free_irq(interrupt->irq, interrupt);
        kfree(interrupt);
 }
-- 
2.20.1