Subject: [PATCH] dt-bindings: usb: dwc3: Move Amlogic G12A DWC3 Glue Bindings to YAML schemas

From: Neil Armstrong <[email-masked]>
Date: Mon, 21 Oct 2019 15:23:22 +0200

Now that we have the DT validation in place, let's convert the device tree
bindings for the Amlogic G12A DWC3 Glue Bindings over to a YAML schemas,
the AXG and GXL glue bindings will be converted later.

Signed-off-by: Neil Armstrong <[email-masked]>
---
 .../devicetree/bindings/usb/amlogic,dwc3.txt  |  88 ------------
 .../usb/amlogic,meson-g12a-usb-ctrl.yaml      | 132 ++++++++++++++++++
 2 files changed, 132 insertions(+), 88 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml

diff --git a/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt b/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt
index b9f04e617eb7..9a8b631904fd 100644
--- a/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt
+++ b/Documentation/devicetree/bindings/usb/amlogic,dwc3.txt
@@ -40,91 +40,3 @@ Example device nodes:
 				phy-names = "usb2-phy", "usb3-phy";
 			};
 		};
-
-Amlogic Meson G12A DWC3 USB SoC Controller Glue
-
-The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
-in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode
-only.
-
-A glue connects the DWC3 core to USB2 PHYs and optionnaly to an USB3 PHY.
-
-One of the USB2 PHY can be re-routed in peripheral mode to a DWC2 USB IP.
-
-The DWC3 Glue controls the PHY routing and power, an interrupt line is
-connected to the Glue to serve as OTG ID change detection.
-
-Required properties:
-- compatible:	Should be "amlogic,meson-g12a-usb-ctrl"
-- clocks:	a handle for the "USB" clock
-- resets:	a handle for the shared "USB" reset line
-- reg:		The base address and length of the registers
-- interrupts:	the interrupt specifier for the OTG detection
-- phys: 	handle to used PHYs on the system
-	- a <0> phandle can be used if a PHY is not used
-- phy-names:	names of the used PHYs on the system :
-	- "usb2-phy0" for USB2 PHY0 if USBHOST_A port is used
-	- "usb2-phy1" for USB2 PHY1 if USBOTG_B port is used
-	- "usb3-phy0" for USB3 PHY if USB3_0 is used
-- dr_mode:	should be "host", "peripheral", or "otg" depending on
-	the usage and configuration of the OTG Capable port.
-	- "host" and "peripheral" means a fixed Host or Device only connection
-	- "otg" means the port can be used as both Host or Device and
-	  be switched automatically using the OTG ID pin.
-
-Optional properties:
-- vbus-supply:	should be a phandle to the regulator controlling the VBUS
-		power supply when used in OTG switchable mode
-
-Required child nodes:
-
-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.
-
-A child node must exist to represent the core DWC2 IP block. The name of
-the node is not important. The content of the node is defined in dwc2.txt.
-
-PHY documentation is provided in the following places:
-- Documentation/devicetree/bindings/phy/meson-g12a-usb2-phy.txt
-- Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt
-
-Example device nodes:
-	usb: usb@ffe09000 {
-			compatible = "amlogic,meson-g12a-usb-ctrl";
-			reg = <0x0 0xffe09000 0x0 0xa0>;
-			interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
-			#address-cells = <2>;
-			#size-cells = <2>;
-			ranges;
-
-			clocks = <&clkc CLKID_USB>;
-			resets = <&reset RESET_USB>;
-
-			dr_mode = "otg";
-
-			phys = <&usb2_phy0>, <&usb2_phy1>,
-			       <&usb3_pcie_phy PHY_TYPE_USB3>;
-			phy-names = "usb2-phy0", "usb2-phy1", "usb3-phy0";
-
-			dwc2: usb@ff400000 {
-				compatible = "amlogic,meson-g12a-usb", "snps,dwc2";
-				reg = <0x0 0xff400000 0x0 0x40000>;
-				interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
-				clocks = <&clkc CLKID_USB1_DDR_BRIDGE>;
-				clock-names = "ddr";
-				phys = <&usb2_phy1>;
-				dr_mode = "peripheral";
-				g-rx-fifo-size = <192>;
-				g-np-tx-fifo-size = <128>;
-				g-tx-fifo-size = <128 128 16 16 16>;
-			};
-
-			dwc3: usb@ff500000 {
-				compatible = "snps,dwc3";
-				reg = <0x0 0xff500000 0x0 0x100000>;
-				interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
-				dr_mode = "host";
-				snps,dis_u2_susphy_quirk;
-				snps,quirk-frame-length-adjustment;
-			};
-	};
diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
new file mode 100644
index 000000000000..45bcc98ee9a4
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
@@ -0,0 +1,132 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 BayLibre, SAS
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/amlogic,meson-g12a-usb-ctrl.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson G12A DWC3 USB SoC Controller Glue
+
+maintainers:
+  - Neil Armstrong <[email-masked]>
+
+description: |
+  The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
+  in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode
+  only.
+
+  A glue connects the DWC3 core to USB2 PHYs and optionnaly to an USB3 PHY.
+
+  One of the USB2 PHY can be re-routed in peripheral mode to a DWC2 USB IP.
+
+  The DWC3 Glue controls the PHY routing and power, an interrupt line is
+  connected to the Glue to serve as OTG ID change detection.
+
+properties:
+  compatible:
+    enum:
+      - amlogic,meson-g12a-usb-ctrl
+
+  ranges: true
+
+  "#address-cells":
+    enum: [ 1, 2 ]
+
+  "#size-cells":
+    enum: [ 1, 2 ]
+
+  clocks:
+    minItems: 1
+
+  resets:
+    minItems: 1
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  phy-names:
+    items:
+      - const: usb2-phy0 # USB2 PHY0 if USBHOST_A port is used
+      - const: usb2-phy1 # USB2 PHY1 if USBOTG_B port is used
+      - const: usb3-phy0 # USB3 PHY if USB3_0 is used
+
+  phys:
+    minItems: 1
+    maxItems: 3
+
+  dr_mode:
+    enum:
+      - host # fixed Host connection
+      - peripheral # fixed Device connection
+      - otg # Host or Device and switched automatically using the OTG ID pin
+
+  power-domains:
+    maxItems: 1
+
+  vbus-supply:
+    description: VBUS power supply when used in OTG switchable mode
+    maxItems: 1
+
+patternProperties:
+  "^usb@[0-9a-f]+$":
+    type: object
+
+additionalProperties: false
+
+required:
+  - compatible
+  - "#address-cells"
+  - "#size-cells"
+  - ranges
+  - clocks
+  - resets
+  - reg
+  - interrupts
+  - phy-names
+  - phys
+  - dr_mode
+
+examples:
+  - |
+    usb: usb@ffe09000 {
+          compatible = "amlogic,meson-g12a-usb-ctrl";
+          reg = <0x0 0xffe09000 0x0 0xa0>;
+          interrupts = <16>;
+          #address-cells = <1>;
+          #size-cells = <1>;
+          ranges;
+
+          clocks = <&clkc_usb>;
+          resets = <&reset_usb>;
+
+          dr_mode = "otg";
+
+          phys = <&usb2_phy0>, <&usb2_phy1>, <&usb3_phy0>;
+          phy-names = "usb2-phy0", "usb2-phy1", "usb3-phy0";
+
+          dwc2: usb@ff400000 {
+              compatible = "amlogic,meson-g12a-usb", "snps,dwc2";
+              reg = <0xff400000 0x40000>;
+              interrupts = <31>;
+              clocks = <&clkc_usb1>;
+              clock-names = "ddr";
+              phys = <&usb2_phy1>;
+              dr_mode = "peripheral";
+              g-rx-fifo-size = <192>;
+              g-np-tx-fifo-size = <128>;
+              g-tx-fifo-size = <128 128 16 16 16>;
+          };
+
+          dwc3: usb@ff500000 {
+              compatible = "snps,dwc3";
+              reg = <0xff500000 0x100000>;
+              interrupts = <30>;
+              dr_mode = "host";
+              snps,dis_u2_susphy_quirk;
+              snps,quirk-frame-length-adjustment;
+          };
+    };
+
-- 
2.22.0

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