[PATCH v2] dt-bindings: net: orion-mdio: Convert to JSON schema

From: Chris Packham
Date: Thu May 05 2022 - 17:06:38 EST


Convert the marvell,orion-mdio binding to JSON schema.

Signed-off-by: Chris Packham <chris.packham@xxxxxxxxxxxxxxxxxxx>
---

Notes:
This does throw up the following dtbs_check warnings for turris-mox:

arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dtb: mdio@32004: switch0@10:reg: [[16], [0]] is too long
From schema: Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dtb: mdio@32004: switch0@2:reg: [[2], [0]] is too long
From schema: Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dtb: mdio@32004: switch1@11:reg: [[17], [0]] is too long
From schema: Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dtb: mdio@32004: switch1@2:reg: [[2], [0]] is too long
From schema: Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dtb: mdio@32004: switch2@12:reg: [[18], [0]] is too long
From schema: Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dtb: mdio@32004: switch2@2:reg: [[2], [0]] is too long
From schema: Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml

I think they're all genuine but I'm hesitant to leap in and fix them
without being able to test them.

I also need to set unevaluatedProperties: true to cater for the L2
switch on turris-mox (and probably others). That might be better tackled
in the core mdio.yaml schema but I wasn't planning on touching that.

Changes in v2:
- Add Andrew as maintainer (thanks for volunteering)

.../bindings/net/marvell,orion-mdio.yaml | 60 +++++++++++++++++++
.../bindings/net/marvell-orion-mdio.txt | 54 -----------------
2 files changed, 60 insertions(+), 54 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
delete mode 100644 Documentation/devicetree/bindings/net/marvell-orion-mdio.txt

diff --git a/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml b/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
new file mode 100644
index 000000000000..fe3a3412f093
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/marvell,orion-mdio.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/marvell,orion-mdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell MDIO Ethernet Controller interface
+
+maintainers:
+ - Andrew Lunn <andrew@xxxxxxx>
+
+description: |
+ The Ethernet controllers of the Marvel Kirkwood, Dove, Orion5x, MV78xx0,
+ Armada 370, Armada XP, Armada 7k and Armada 8k have an identical unit that
+ provides an interface with the MDIO bus. Additionally, Armada 7k and Armada
+ 8k has a second unit which provides an interface with the xMDIO bus. This
+ driver handles these interfaces.
+
+allOf:
+ - $ref: "mdio.yaml#"
+
+properties:
+ compatible:
+ enum:
+ - marvell,orion-mdio
+ - marvell,xmdio
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 4
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: true
+
+examples:
+ - |
+ mdio@d0072004 {
+ compatible = "marvell,orion-mdio";
+ reg = <0xd0072004 0x4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ interrupts = <30>;
+
+ phy0: ethernet-phy@0 {
+ reg = <0>;
+ };
+
+ phy1: ethernet-phy@1 {
+ reg = <1>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt b/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
deleted file mode 100644
index 3f3cfc1d8d4d..000000000000
--- a/Documentation/devicetree/bindings/net/marvell-orion-mdio.txt
+++ /dev/null
@@ -1,54 +0,0 @@
-* Marvell MDIO Ethernet Controller interface
-
-The Ethernet controllers of the Marvel Kirkwood, Dove, Orion5x,
-MV78xx0, Armada 370, Armada XP, Armada 7k and Armada 8k have an
-identical unit that provides an interface with the MDIO bus.
-Additionally, Armada 7k and Armada 8k has a second unit which
-provides an interface with the xMDIO bus. This driver handles
-these interfaces.
-
-Required properties:
-- compatible: "marvell,orion-mdio" or "marvell,xmdio"
-- reg: address and length of the MDIO registers. When an interrupt is
- not present, the length is the size of the SMI register (4 bytes)
- otherwise it must be 0x84 bytes to cover the interrupt control
- registers.
-
-Optional properties:
-- interrupts: interrupt line number for the SMI error/done interrupt
-- clocks: phandle for up to four required clocks for the MDIO instance
-
-The child nodes of the MDIO driver are the individual PHY devices
-connected to this MDIO bus. They must have a "reg" property given the
-PHY address on the MDIO bus.
-
-Example at the SoC level without an interrupt property:
-
-mdio {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "marvell,orion-mdio";
- reg = <0xd0072004 0x4>;
-};
-
-Example with an interrupt property:
-
-mdio {
- #address-cells = <1>;
- #size-cells = <0>;
- compatible = "marvell,orion-mdio";
- reg = <0xd0072004 0x84>;
- interrupts = <30>;
-};
-
-And at the board level:
-
-mdio {
- phy0: ethernet-phy@0 {
- reg = <0>;
- };
-
- phy1: ethernet-phy@1 {
- reg = <1>;
- };
-}
--
2.36.0