Thread (3 messages) flat view 3 messages, 2 authors, 2021-06-09

Re: [PATCH] dt-bindings: virtio: Convert virtio-mmio to DT schema

From: Rob Herring <robh@kernel.org>
Date: 2021-06-09 00:56:05
Also in: lkml, virtualization

On Mon, Jun 7, 2021 at 2:39 PM Rob Herring [off-list ref] wrote:
quoted hunk ↗ jump to hunk
Convert the virtio-mmio binding to DT schema format.

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <redacted>
Cc: Jean-Philippe Brucker <redacted>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Rob Herring <robh@kernel.org>
---
Jean-Philippe, hopefully you are okay with being listed as the
maintainer here. You're the only active person that's touched this
binding.

 .../devicetree/bindings/virtio/mmio.txt       | 47 ---------------
 .../devicetree/bindings/virtio/mmio.yaml      | 60 +++++++++++++++++++
 2 files changed, 60 insertions(+), 47 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/virtio/mmio.txt
 create mode 100644 Documentation/devicetree/bindings/virtio/mmio.yaml
diff --git a/Documentation/devicetree/bindings/virtio/mmio.txt b/Documentation/devicetree/bindings/virtio/mmio.txt
deleted file mode 100644
index 0a575f329f6e..000000000000
--- a/Documentation/devicetree/bindings/virtio/mmio.txt
+++ /dev/null
@@ -1,47 +0,0 @@
-* virtio memory mapped device
-
-See https://ozlabs.org/~rusty/virtio-spec/ for more details.
-
-Required properties:
-
-- compatible:  "virtio,mmio" compatibility string
-- reg:         control registers base address and size including configuration space
-- interrupts:  interrupt generated by the device
-
-Required properties for virtio-iommu:
-
-- #iommu-cells:        When the node corresponds to a virtio-iommu device, it is
-               linked to DMA masters using the "iommus" or "iommu-map"
-               properties [1][2]. #iommu-cells specifies the size of the
-               "iommus" property. For virtio-iommu #iommu-cells must be
-               1, each cell describing a single endpoint ID.
-
-Optional properties:
-
-- iommus:      If the device accesses memory through an IOMMU, it should
-               have an "iommus" property [1]. Since virtio-iommu itself
-               does not access memory through an IOMMU, the "virtio,mmio"
-               node cannot have both an "#iommu-cells" and an "iommus"
-               property.
-
-Example:
-
-       virtio_block@3000 {
-               compatible = "virtio,mmio";
-               reg = <0x3000 0x100>;
-               interrupts = <41>;
-
-               /* Device has endpoint ID 23 */
-               iommus = <&viommu 23>
-       }
-
-       viommu: iommu@3100 {
-               compatible = "virtio,mmio";
-               reg = <0x3100 0x100>;
-               interrupts = <42>;
-
-               #iommu-cells = <1>
-       }
-
-[1] Documentation/devicetree/bindings/iommu/iommu.txt
-[2] Documentation/devicetree/bindings/pci/pci-iommu.txt
diff --git a/Documentation/devicetree/bindings/virtio/mmio.yaml b/Documentation/devicetree/bindings/virtio/mmio.yaml
new file mode 100644
index 000000000000..444bfa24affc
--- /dev/null
+++ b/Documentation/devicetree/bindings/virtio/mmio.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/virtio/mmio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: virtio memory mapped devices
+
+maintainers:
+  - Jean-Philippe Brucker <jean-philippe@linaro.org>
+
+description:
+  See https://www.oasis-open.org/committees/tc_home.php?wg_abbrev=virtio for
+  more details.
+
+properties:
+  compatible:
+    const: virtio-mmio
This should be virtio,mmio.
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