dt-bindings: usb: convert rockchip,dwc3.txt to yaml

In the past Rockchip dwc3 usb nodes were manually checked.
With the conversion of snps,dwc3.yaml as common document
we now can convert rockchip,dwc3.txt to yaml as well.
Remove node wrapper.

Added properties for rk3399 are:
  power-domains
  resets
  reset-names

Signed-off-by: Johan Jonker <jbx6244@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210209192350.7130-1-jbx6244@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt b/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt
deleted file mode 100644 (file)
index 9452049..0000000
--- a/Documentation/devicetree/bindings/usb/rockchip,dwc3.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-Rockchip SuperSpeed DWC3 USB SoC controller
-
-Required properties:
-- compatible:  should contain "rockchip,rk3399-dwc3" for rk3399 SoC
-- clocks:      A list of phandle + clock-specifier pairs for the
-               clocks listed in clock-names
-- clock-names: Should contain the following:
-  "ref_clk"    Controller reference clk, have to be 24 MHz
-  "suspend_clk"        Controller suspend clk, have to be 24 MHz or 32 KHz
-  "bus_clk"    Master/Core clock, have to be >= 62.5 MHz for SS
-               operation and >= 30MHz for HS operation
-  "grf_clk"    Controller grf clk
-
-Required child node:
-A child node must exist to represent the core DWC3 IP block. The name of
-the node is not important. The content of the node is defined in dwc3.txt.
-
-Phy documentation is provided in the following places:
-Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml - USB2.0 PHY
-Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt     - Type-C PHY
-
-Example device nodes:
-
-       usbdrd3_0: usb@fe800000 {
-               compatible = "rockchip,rk3399-dwc3";
-               clocks = <&cru SCLK_USB3OTG0_REF>, <&cru SCLK_USB3OTG0_SUSPEND>,
-                        <&cru ACLK_USB3OTG0>, <&cru ACLK_USB3_GRF>;
-               clock-names = "ref_clk", "suspend_clk",
-                             "bus_clk", "grf_clk";
-               #address-cells = <2>;
-               #size-cells = <2>;
-               ranges;
-               usbdrd_dwc3_0: dwc3@fe800000 {
-                       compatible = "snps,dwc3";
-                       reg = <0x0 0xfe800000 0x0 0x100000>;
-                       interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
-                       dr_mode = "otg";
-               };
-       };
-
-       usbdrd3_1: usb@fe900000 {
-               compatible = "rockchip,rk3399-dwc3";
-               clocks = <&cru SCLK_USB3OTG1_REF>, <&cru SCLK_USB3OTG1_SUSPEND>,
-                        <&cru ACLK_USB3OTG1>, <&cru ACLK_USB3_GRF>;
-               clock-names = "ref_clk", "suspend_clk",
-                             "bus_clk", "grf_clk";
-               #address-cells = <2>;
-               #size-cells = <2>;
-               ranges;
-               usbdrd_dwc3_1: dwc3@fe900000 {
-                       compatible = "snps,dwc3";
-                       reg = <0x0 0xfe900000 0x0 0x100000>;
-                       interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
-                       dr_mode = "otg";
-               };
-       };

diff --git a/Documentation/devicetree/bindings/usb/rockchip,dwc3.yaml b/Documentation/devicetree/bindings/usb/rockchip,dwc3.yaml
new file mode 100644 (file)
index 0000000..9908270
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/rockchip,dwc3.yaml
@@ -0,0 +1,104 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/rockchip,dwc3.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip SuperSpeed DWC3 USB SoC controller
+
+maintainers:
+  - Heiko Stuebner <heiko@sntech.de>
+
+description:
+  The common content of the node is defined in snps,dwc3.yaml.
+
+  Phy documentation is provided in the following places.
+
+  USB2.0 PHY
+  Documentation/devicetree/bindings/phy/phy-rockchip-inno-usb2.yaml
+
+  Type-C PHY
+  Documentation/devicetree/bindings/phy/phy-rockchip-typec.txt
+
+allOf:
+  - $ref: snps,dwc3.yaml#
+
+select:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - rockchip,rk3399-dwc3
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - rockchip,rk3399-dwc3
+      - const: snps,dwc3
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description:
+          Controller reference clock, must to be 24 MHz
+      - description:
+          Controller suspend clock, must to be 24 MHz or 32 KHz
+      - description:
+          Master/Core clock, must to be >= 62.5 MHz for SS
+          operation and >= 30MHz for HS operation
+      - description:
+          Controller grf clock
+
+  clock-names:
+    items:
+      - const: ref_clk
+      - const: suspend_clk
+      - const: bus_clk
+      - const: grf_clk
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: usb3-otg
+
+unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3399-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      usbdrd3_0: usb@fe800000 {
+        compatible = "rockchip,rk3399-dwc3", "snps,dwc3";
+        reg = <0x0 0xfe800000 0x0 0x100000>;
+        interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cru SCLK_USB3OTG0_REF>, <&cru SCLK_USB3OTG0_SUSPEND>,
+                 <&cru ACLK_USB3OTG0>, <&cru ACLK_USB3_GRF>;
+        clock-names = "ref_clk", "suspend_clk",
+                      "bus_clk", "grf_clk";
+        dr_mode = "otg";
+      };
+    };