* [PATCH v2 2/2] virtio_mmio: add support to set IRQ of a virtio device as wakeup source
@ 2022-03-25 2:05 Minghao Xue
0 siblings, 0 replies; 2+ messages in thread
From: Minghao Xue @ 2022-03-25 2:05 UTC (permalink / raw)
To: mst, jasowang, virtualization, linux-kernel; +Cc: quic_ztu
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>
---
v1 -> v2: rename property from "virtio,wakeup" to "wakeup-source"
drivers/virtio/virtio_mmio.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 56128b9..6637d85 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -474,6 +474,9 @@ static int vm_find_vqs(struct virtio_device *vdev, unsigned 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;
--
2.7.4
^ permalink raw reply [flat|nested] 2+ messages in thread
* [PATCH v2 2/2] virtio_mmio: add support to set IRQ of a virtio device as wakeup source
2022-06-10 8:58 [PATCH v2 0/2] " Minghao Xue
@ 2022-06-10 8:58 ` Minghao Xue
0 siblings, 0 replies; 2+ messages in thread
From: Minghao Xue @ 2022-06-10 8:58 UTC (permalink / raw)
To: Michael S. Tsirkin, Jason Wang, Rob Herring
Cc: Minghao Xue, Jean-Philippe Brucker, virtualization, devicetree,
linux-kernel, quic_ztu
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 --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;
--
2.7.4
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2022-06-10 8:59 UTC | newest]
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2022-03-25 2:05 [PATCH v2 2/2] virtio_mmio: add support to set IRQ of a virtio device as wakeup source Minghao Xue
2022-06-10 8:58 [PATCH v2 0/2] " Minghao Xue
2022-06-10 8:58 ` [PATCH v2 2/2] " Minghao Xue
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