linux-kernel - [RFC PATCH v2 1/2] dt-bindings: usb: Add DT bindings for Microchip sama7g5 tcpc

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Date:   Tue, 30 Mar 2021 23:54:41 +0300
From:   <cristian.birsan@...rochip.com>
To:     <linux@...ck-us.net>, <heikki.krogerus@...ux.intel.com>,
        <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>
CC:     <linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <devicetree@...r.kernel.org>,
        Cristian Birsan <cristian.birsan@...rochip.com>
Subject: [RFC PATCH v2 1/2] dt-bindings: usb: Add DT bindings for Microchip sama7g5 tcpc

From: Cristian Birsan <cristian.birsan@...rochip.com>

This patch adds DT bindings for the new Microchip USB Type-C Port
Controller (TCPC) embedded in sama7g5 SoC.

Signed-off-by: Cristian Birsan <cristian.birsan@...rochip.com>
---
 .../bindings/usb/microchip,sama7g5-tcpc.yaml  | 90 +++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/microchip,sama7g5-tcpc.yaml

diff --git a/Documentation/devicetree/bindings/usb/microchip,sama7g5-tcpc.yaml b/Documentation/devicetree/bindings/usb/microchip,sama7g5-tcpc.yaml
new file mode 100644
index 000000000000..2d3289dd9ac9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/microchip,sama7g5-tcpc.yaml
@@ -0,0 +1,90 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/microchip,sama7g5-tcpc.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Microchip SAMA7G5 Type-C port controller bindings
+
+maintainers:
+  - Cristian Birsan <cristian.birsan@...rochip.com>
+
+properties:
+  compatible:
+    enum:
+      - microchip,sama7g5-tcpc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Peripheral Bus Clock
+      - description: Generic Clock
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: gclk
+
+  vbus-supply:
+    description: vbus power supply (5V) phandle
+
+  microchip,vbus-gpio:
+    description: vbus detect gpio
+
+  connector:
+    type: object
+
+    allOf:
+      - $ref: ../connector/usb-connector.yaml
+
+    properties:
+      compatible:
+        const: usb-c-connector
+
+      power-role: true
+
+    required:
+      - compatible
+
+required:
+  - compatible
+  - reg
+  - connector
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/at91.h>
+    #include <dt-bindings/usb/pd.h>
+    tcpcb: tcpcb@...44000 {
+      compatible = "microchip,sama7g5-tcpc";
+      reg = <0xe0844000 0x3fff>;
+      clocks = <&pmc PMC_TYPE_PERIPHERAL 95>, <&pmc PMC_TYPE_GCK 95>;
+      clock-names = "pclk", "gclk";
+
+      usb_con: connector {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        compatible = "usb-c-connector";
+        label = "USB-C";
+        data-role = "device";
+        power-role = "sink";
+        try-power-role = "sink";
+        source-pdos = <PDO_FIXED(5000, 500,
+            PDO_FIXED_USB_COMM)>;
+        sink-pdos = <PDO_FIXED(5000, 500,
+            PDO_FIXED_USB_COMM)>;
+        op-sink-microwatt = <2500000>;
+
+        port@1 {
+          reg = <1>;
+          usb_con_hs: endpoint {
+            remote-endpoint = <&usb_phy1>;
+          };
+        };
+      };
+    };
+...
-- 
2.25.1