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Message-Id: <20221127073140.2093897-3-uwu@icenowy.me>
Date: Sun, 27 Nov 2022 15:31:36 +0800
From: Icenowy Zheng <uwu@...nowy.me>
To: Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Chen-Yu Tsai <wens@...e.org>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Samuel Holland <samuel@...lland.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Matthias Kaehlcke <mka@...omium.org>,
Andre Przywara <andre.przywara@....com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-sunxi@...ts.linux.dev, linux-kernel@...r.kernel.org,
linux-usb@...r.kernel.org, Icenowy Zheng <uwu@...nowy.me>
Subject: [PATCH 2/6] dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller
The Genesys Logic GL850G is a USB 2.0 Single TT hub controller that
features 4 downstream ports, an internal 5V-to-3.3V LDO regulator (can
be bypassed) and an external reset pin.
Add a device tree binding for its USB protocol part. The internal LDO is
not covered by this and can just be modelled as a fixed regulator.
Signed-off-by: Icenowy Zheng <uwu@...nowy.me>
---
.../bindings/usb/genesys,gl850g.yaml | 48 +++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
diff --git a/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
new file mode 100644
index 000000000000..d1fe539db399
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/genesys,gl850g.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: GPL-2.0-only or BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/realtek,rts5411.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Genesys Logic GL850G USB 2.0 hub controller
+
+maintainers:
+ - Icenowy Zheng <uwu@...nowy.me>
+
+allOf:
+ - $ref: usb-device.yaml#
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - usb5e3,608
+
+ reg: true
+
+ reset-gpios:
+ description: GPIO specifier for GRST# pin.
+
+ vdd-supply:
+ description:
+ phandle to the regulator that provides power to the hub.
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ usb {
+ dr_mode = "host";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ hub: hub@1 {
+ compatible = "usb5e3,608";
+ reg = <1>;
+ reset-gpios = <&pio 7 2 GPIO_ACTIVE_LOW>;
+ };
+ };
--
2.37.1
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