linux-kernel - [PATCH v2 1/2] dt-bindings: usb: Introduce ITE IT5205 Alt. Mode Passive MUX

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Message-ID: <20240119125812.239197-2-angelogioacchino.delregno@collabora.com>
Date: Fri, 19 Jan 2024 13:58:11 +0100
From: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
To: gregkh@...uxfoundation.org
Cc: robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org,
	conor+dt@...nel.org,
	heikki.krogerus@...ux.intel.com,
	matthias.bgg@...il.com,
	dmitry.baryshkov@...aro.org,
	neil.armstrong@...aro.org,
	andersson@...nel.org,
	nathan@...nel.org,
	luca.weiss@...rphone.com,
	tianping.fang@...iatek.com,
	linux-usb@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	kernel@...labora.com,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Subject: [PATCH v2 1/2] dt-bindings: usb: Introduce ITE IT5205 Alt. Mode Passive MUX

Introduce a binding for the ITE IT5205 Alternate Mode Passive MUX,
used for connecting, disconnecting and switching orientation and
control the SBU signals for alternate modes on USB Type-C ports.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
---
 .../devicetree/bindings/usb/ite,it5205.yaml   | 72 +++++++++++++++++++
 1 file changed, 72 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/ite,it5205.yaml

diff --git a/Documentation/devicetree/bindings/usb/ite,it5205.yaml b/Documentation/devicetree/bindings/usb/ite,it5205.yaml
new file mode 100644
index 000000000000..36ec4251b5f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ite,it5205.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/ite,it5205.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ITE IT5202 Type-C USB Alternate Mode Passive MUX
+
+maintainers:
+  - AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
+  - Tianping Fang <tianping.fang@...iatek.com>
+
+properties:
+  compatible:
+    const: ite,it5205
+
+  reg:
+    maxItems: 1
+
+  vcc-supply:
+    description: Power supply for VCC pin (3.3V)
+
+  mode-switch:
+    description: Flag the port as possible handle of altmode switching
+    type: boolean
+
+  orientation-switch:
+    description: Flag the port as possible handler of orientation switching
+    type: boolean
+
+  ite,ovp-enable:
+    description: Enable Over Voltage Protection functionality
+    type: boolean
+
+  port:
+    $ref: /schemas/graph.yaml#/properties/port
+    description:
+      A port node to link the IT5205 to a TypeC controller for the purpose of
+      handling altmode muxing and orientation switching.
+
+required:
+  - compatible
+  - reg
+  - orientation-switch
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    i2c2 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        typec-mux@48 {
+          compatible = "ite,it5205";
+          reg = <0x48>;
+
+          mode-switch;
+          orientation-switch;
+
+          vcc-supply = <&mt6359_vibr_ldo_reg>;
+
+          port {
+            it5205_usbss_sbu: endpoint {
+              remote-endpoint = <&typec_controller>;
+            };
+          };
+        };
+    };
+...
-- 
2.43.0