[PATCH v2 2/2] dt-bindings: usb: tegra: Convert to json-schema

[Thierry Reding <thierry.reding@gmail.com>]

From: Thierry Reding <treding@nvidia.com>

Convert the old plain-text device tree bindings for the USB EHCI
controller found on NVIDIA Tegra SoCs to the json-schema format.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
Changes in v2:
- drop unneeded clock-names property
- fix indentation issues

 .../bindings/usb/nvidia,tegra20-ehci.txt      |  23 ---
 .../bindings/usb/nvidia,tegra20-ehci.yaml     | 150 ++++++++++++++++++
 2 files changed, 150 insertions(+), 23 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt
 create mode 100644 Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.yaml

diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt
deleted file mode 100644
index f60785f73d3d..000000000000
--- a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Tegra SOC USB controllers
-
-The device node for a USB controller that is part of a Tegra
-SOC is as described in the document "Open Firmware Recommended
-Practice : Universal Serial Bus" with the following modifications
-and additions :
-
-Required properties :
- - compatible : For Tegra20, must contain "nvidia,tegra20-ehci".
-   For Tegra30, must contain "nvidia,tegra30-ehci".  Otherwise, must contain
-   "nvidia,<chip>-ehci" plus at least one of the above, where <chip> is
-   tegra114, tegra124, tegra132, or tegra210.
- - nvidia,phy : phandle of the PHY that the controller is connected to.
- - clocks : Must contain one entry, for the module clock.
-   See ../clocks/clock-bindings.txt for details.
- - resets : Must contain an entry for each entry in reset-names.
-   See ../reset/reset.txt for details.
- - reset-names : Must include the following entries:
-   - usb
-
-Optional properties:
- - nvidia,needs-double-reset : boolean is to be set for some of the Tegra20
-   USB ports, which need reset twice due to hardware issues.
diff --git a/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.yaml b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.yaml
new file mode 100644
index 000000000000..079cae44b8d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/nvidia,tegra20-ehci.yaml
@@ -0,0 +1,150 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/nvidia,tegra20-ehci.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Device tree binding for NVIDIA Tegra USB controllers
+
+description: |
+  The device node for a USB controller that is part of a Tegra SOC is as
+  described in the document "Open Firmware Recommended Practice : Universal
+  Serial Bus". Modifications and additions are detailed in this document.
+
+maintainers:
+  - Thierry Reding <treding@nvidia.com>
+  - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - nvidia,tegra210-ehci
+              - nvidia,tegra124-ehci
+              - nvidia,tegra114-ehci
+          - const: nvidia,tegra30-ehci
+      - items:
+          - const: nvidia,tegra30-ehci
+      - items:
+          - const: nvidia,tegra20-ehci
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  phy_type:
+    $ref: /schemas/types.yaml#/definitions/string
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    items:
+      - const: usb
+
+  nvidia,phy:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle of the PHY that the controller is connected to
+
+  nvidia,needs-double-reset:
+    type: boolean
+    description:
+      This must be set for some instances of the USB controller found on
+      Tegra20 that need to be reset twice due to some hardware issue.
+
+additionalProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - resets
+  - reset-names
+  - phy_type
+  - nvidia,phy
+
+examples:
+  - |
+    #include <dt-bindings/clock/tegra20-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    usb@c5000000 {
+        compatible = "nvidia,tegra20-ehci";
+        reg = <0xc5000000 0x4000>;
+        interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+        phy_type = "utmi";
+        clocks = <&tegra_car TEGRA20_CLK_USBD>;
+        resets = <&tegra_car 22>;
+        reset-names = "usb";
+        nvidia,needs-double-reset;
+        nvidia,phy = <&phy1>;
+    };
+
+  - |
+    #include <dt-bindings/clock/tegra30-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    usb@7d000000 {
+        compatible = "nvidia,tegra30-ehci";
+        reg = <0x7d000000 0x4000>;
+        interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+        phy_type = "utmi";
+        clocks = <&tegra_car TEGRA30_CLK_USBD>;
+        resets = <&tegra_car 22>;
+        reset-names = "usb";
+        nvidia,needs-double-reset;
+        nvidia,phy = <&phy1>;
+    };
+
+  - |
+    #include <dt-bindings/clock/tegra114-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    usb@7d000000 {
+        compatible = "nvidia,tegra114-ehci", "nvidia,tegra30-ehci";
+        reg = <0x7d000000 0x4000>;
+        interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+        phy_type = "utmi";
+        clocks = <&tegra_car TEGRA114_CLK_USBD>;
+        resets = <&tegra_car 22>;
+        reset-names = "usb";
+        nvidia,phy = <&phy1>;
+    };
+
+  - |
+    #include <dt-bindings/clock/tegra124-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    usb@7d000000 {
+        compatible = "nvidia,tegra124-ehci", "nvidia,tegra30-ehci";
+        reg = <0x7d000000 0x4000>;
+        interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+        phy_type = "utmi";
+        clocks = <&tegra_car TEGRA124_CLK_USBD>;
+        resets = <&tegra_car 22>;
+        reset-names = "usb";
+        nvidia,phy = <&phy1>;
+    };
+
+  - |
+    #include <dt-bindings/clock/tegra210-car.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    usb@7d000000 {
+        compatible = "nvidia,tegra210-ehci", "nvidia,tegra30-ehci";
+        reg = <0x7d000000 0x4000>;
+        interrupts = <GIC_SPI 20 IRQ_TYPE_LEVEL_HIGH>;
+        phy_type = "utmi";
+        clocks = <&tegra_car TEGRA210_CLK_USBD>;
+        resets = <&tegra_car 22>;
+        reset-names = "usb";
+        nvidia,phy = <&phy1>;
+    };
-- 
2.32.0