linux-kernel - [PATCHv2 1/2] dt-bindings: usb: typec: anx7688: start a binding document

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Message-ID: <ZdkOCqPKqa/u9Ftb@duo.ucw.cz>
Date: Fri, 23 Feb 2024 22:28:42 +0100
From: Pavel Machek <pavel@....cz>
To: phone-devel@...r.kernel.org, kernel list <linux-kernel@...r.kernel.org>,
	fiona.klute@....de, martijn@...xit.nl, samuel@...lland.org,
	heikki.krogerus@...ux.intel.com, gregkh@...uxfoundation.org,
	linux-usb@...r.kernel.org, robh+dt@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, devicetree@...r.kernel.org,
	megi@....cz
Subject: [PATCHv2 1/2] dt-bindings: usb: typec: anx7688: start a binding
 document

Add binding for anx7688 usb type-c bridge. I don't have a datasheet,
but I did best I could.

Signed-off-by: Pavel Machek <pavel@....cz>

---

v2: implement review feedback

diff --git a/Documentation/devicetree/bindings/usb/analogix,anx7688.yaml b/Documentation/devicetree/bindings/usb/analogix,anx7688.yaml
new file mode 100644
index 000000000000..9e887eafb5fc
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/analogix,anx7688.yaml
@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/analogix,anx7688.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+# Pin names can be deduced from
+# https://files.pine64.org/doc/PinePhone/PinePhone%20v1.2b%20Released%20Schematic.pdf
+
+title: Analogix ANX7688 Type-C controller
+
+maintainers:
+  - Pavel Machek <pavel@....cz>
+
+properties:
+  compatible:
+    enum:
+      - analogix,anx7688
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+    description: GPIO controlling RESET_N (B7) pin.
+
+  enable-gpios:
+    maxItems: 1
+    description: GPIO controlling POWER_EN (D2) pin.
+
+  cabledet-gpios:
+    maxItems: 1
+    description: GPIO controlling CABLE_DET (C3) pin.
+
+  avdd10-supply:
+    description: 1.0V power supply going to AVDD10 (A4, ...) pins
+
+  dvdd10-supply:
+    description: 1.0V power supply going to DVDD10 (D6, ...) pins
+
+  avdd18-supply:
+    description: 1.8V power supply going to AVDD18 (E3, ...) pins
+
+  dvdd18-supply:
+    description: 1.8V power supply going to DVDD18 (G4, ...) pins
+
+  avdd33-supply:
+    description: 3.3V power supply going to AVDD33 (C4, ...) pins
+
+  i2c-supply: true
+  vconn-supply: true
+  hdmi-vt-supply: true
+  vbus-supply: true
+  vbus-in-supply: true
+
+  connector:
+    type: object
+    $ref: /schemas/connector/usb-connector.yaml
+
+    description:
+      Properties for usb c connector.
+
+    properties:
+      compatible:
+        const: usb-c-connector
+
+required:
+  - compatible
+  - reg
+  - connector
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/gpio/gpio.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        typec@2c {
+            compatible = "analogix,anx7688";
+            reg = <0x2c>;
+            interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
+            interrupt-parent = <&gpio0>;
+
+            enable-gpios = <&pio 3 10 GPIO_ACTIVE_LOW>; /* PD10 */
+            reset-gpios = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+            cabledet-gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
+
+            avdd10-supply = <&reg_anx1v0>;
+            dvdd10-supply = <&reg_anx1v0>;
+            avdd18-supply = <&reg_ldo_io1>;
+            dvdd18-supply = <&reg_ldo_io1>;
+            avdd33-supply = <&reg_dcdc1>;
+            i2c-supply = <&reg_ldo_io0>;
+            vconn-supply = <&reg_vconn5v0>;
+            hdmi_vt-supply = <&reg_dldo1>;
+
+            vbus-supply = <&reg_usb_5v>;
+            vbus-in-supply = <&usb_power_supply>;
+
+            typec_con: connector {
+                compatible = "usb-c-connector";
+                power-role = "dual";
+                data-role = "dual";
+                try-power-role = "source";
+
+                ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+                    port@0 {
+                        reg = <0>;
+                        typec_con_ep: endpoint {
+                            remote-endpoint = <&usbotg_hs_ep>;
+                        };
+                    };
+                };
+            };
+        };
+    };
+...

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