diff mbox series

[v2,2/2] virtio_mmio: add support to set IRQ of a virtio device as wakeup source

Message ID 1654851507-13891-3-git-send-email-quic_mingxue@quicinc.com
State Accepted
Commit 02213273f72a43bad3a8e9c18595a2c74ee487e8
Headers show
Series virtio_mmio: add support to set IRQ of a virtio device as wakeup source | expand

Commit Message

Minghao Xue June 10, 2022, 8:58 a.m. UTC 
According to virtio_mmio wakeup flag in device trees, set its IRQ
as wakeup source in virtqueue initialization.

Signed-off-by: Minghao Xue <quic_mingxue@quicinc.com>
---
 drivers/virtio/virtio_mmio.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index f9a36bc..c144442 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -486,6 +486,9 @@  static int vm_find_vqs(struct virtio_device *vdev, unsigned int nvqs,
 	if (err)
 		return err;
 
+	if (of_property_read_bool(vm_dev->pdev->dev.of_node, "wakeup-source"))
+		enable_irq_wake(irq);
+
 	for (i = 0; i < nvqs; ++i) {
 		if (!names[i]) {
 			vqs[i] = NULL;