linux-kernel - [PATCH v2 1/2] dt-bindings: virtio: mmio: add optional wakeup-source property

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Message-ID: <20220325015945.GA17578@mingxue-gv.qualcomm.com>
Date:   Fri, 25 Mar 2022 09:59:45 +0800
From:   Minghao Xue <quic_mingxue@...cinc.com>
To:     <mst@...hat.com>, <jasowang@...hat.com>, <robh+dt@...nel.org>,
        <jean-philippe@...aro.org>,
        <virtualization@...ts.linux-foundation.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <quic_ztu@...cinc.com>
Subject: [PATCH v2 1/2] dt-bindings: virtio: mmio: add optional wakeup-source
 property

Some systems want to set the interrupt of virtio_mmio device
as a wakeup source. On such systems, we'll use the existence
of the "wakeup-source" property as a signal of requirement.

Signed-off-by: Minghao Xue <quic_mingxue@...cinc.com>
---
v1 -> v2: rename property from "virtio,wakeup" to "wakeup-source"

 Documentation/devicetree/bindings/virtio/mmio.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/virtio/mmio.yaml b/Documentation/devicetree/bindings/virtio/mmio.yaml
index 4b7a027..160b21b 100644
--- a/Documentation/devicetree/bindings/virtio/mmio.yaml
+++ b/Documentation/devicetree/bindings/virtio/mmio.yaml
@@ -31,6 +31,10 @@ properties:
     description: Required for devices making accesses thru an IOMMU.
     maxItems: 1
 
+  wakeup-source:
+    type: boolean
+    description: Required for setting irq of a virtio_mmio device as wakeup source.
+
 required:
   - compatible
   - reg
-- 
2.7.4