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From:   Mike Looijmans <mike.looijmans@topic.nl>
To:     devicetree@vger.kernel.org, linux-usb@vger.kernel.org
CC:     Mike Looijmans <mike.looijmans@topic.nl>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Rob Herring <robh+dt@kernel.org>, linux-kernel@vger.kernel.org
Subject: [PATCH v2 1/2] dt-bindings: usb: Add microchip USB5807 HUB
Date:   Mon, 15 May 2023 08:25:01 +0200
Message-ID: <20230515062502.29273-1-mike.looijmans@topic.nl>
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The USB5807 is a 7-port USB 3.1 hub that can be configured by I2C.
This driver resets the chip, optionally allows D+/D- lines to be
swapped in the devicetree config, and then sends an ATTACH command to
put the device in operational mode.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>

---

Changes in v2:
Rename to microchip,usb5807.yaml
Remove reset-gpios description
Add maxItems
Add vddXX-supply properties

 .../bindings/usb/microchip,usb5807.yaml       | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/microchip,usb5807=
.yaml

diff --git a/Documentation/devicetree/bindings/usb/microchip,usb5807.yaml b=
/Documentation/devicetree/bindings/usb/microchip,usb5807.yaml
new file mode 100644
index 000000000000..ac5f1a959aae
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/microchip,usb5807.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/microchip,usb5807.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip USB 3.1 SuperSpeed Hub Controller
+
+maintainers:
+  - Mike Looijmans <mike.looijmans@topic.nl>
+
+properties:
+  compatible:
+    enum:
+      - microchip,usb5807
+
+  reg:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  vdd12-supply:
+    description: core power supply (1.2V)
+
+  vdd33-supply:
+    description: main power supply (3.3V)
+
+  swap-dx-lanes:
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    maxItems: 8
+    description:
+      Specifies the ports which will swap the differential-pair (D+/D-),
+      default is not-swapped.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+      #address-cells =3D <1>;
+      #size-cells =3D <0>;
+
+      usb-hub@2d {
+        compatible =3D "microchip,usb5807";
+        reg =3D <0x2d>;
+        reset-gpios =3D <&gpio1 4 GPIO_ACTIVE_LOW>;
+        /* Swapped D+/D- on port 0 */
+        swap-dx-lanes =3D <0>;
+      };
+    };
--=20
2.17.1


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