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authorViresh Kumar <viresh.kumar@linaro.org>2021-07-27 10:53:50 +0530
committerMichael S. Tsirkin <mst@redhat.com>2021-09-05 16:23:08 -0400
commitf3a66dcdf2390f8434622a4e20a1af7413502623 (patch)
treef7b2608755182d5d33ae5edad36cd52e2586a641 /Documentation
parent7f815fce08d563006e43d1b7d2f9a0a4f3b832f3 (diff)
downloadlinux-f3a66dcdf2390f8434622a4e20a1af7413502623.tar.bz2
dt-bindings: gpio: Add bindings for gpio-virtio
This patch adds binding for virtio GPIO controller, it is based on virtio-device bindings. Reviewed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/acf7402ef4aabc0ad6295c32846f2bef1cd9b56a.1627362340.git.viresh.kumar@linaro.org Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-virtio.yaml59
1 files changed, 59 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-virtio.yaml b/Documentation/devicetree/bindings/gpio/gpio-virtio.yaml
new file mode 100644
index 000000000000..601d85754577
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-virtio.yaml
@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-virtio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Virtio GPIO controller
+
+maintainers:
+ - Viresh Kumar <viresh.kumar@linaro.org>
+
+allOf:
+ - $ref: /schemas/virtio/virtio-device.yaml#
+
+description:
+ Virtio GPIO controller, see /schemas/virtio/virtio-device.yaml for more
+ details.
+
+properties:
+ $nodename:
+ const: gpio
+
+ compatible:
+ const: virtio,device29
+
+ gpio-controller: true
+
+ "#gpio-cells":
+ const: 2
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+required:
+ - compatible
+ - gpio-controller
+ - "#gpio-cells"
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ virtio@3000 {
+ compatible = "virtio,mmio";
+ reg = <0x3000 0x100>;
+ interrupts = <41>;
+
+ gpio {
+ compatible = "virtio,device29";
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
+
+...