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Date: Thu, 19 Aug 2021 12:09:46 +0200
From: Rafał Miłecki <zajec5@...il.com>
To: "David S . Miller" <davem@...emloft.net>,
Jakub Kicinski <kuba@...nel.org>,
Rob Herring <robh+dt@...nel.org>
Cc: Doug Berger <opendmb@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
netdev@...r.kernel.org, devicetree@...r.kernel.org,
bcm-kernel-feedback-list@...adcom.com,
Rafał Miłecki <rafal@...ecki.pl>
Subject: [PATCH] dt-bindings: net: brcm,unimac-mdio: convert to the json-schema
From: Rafał Miłecki <rafal@...ecki.pl>
This helps validating DTS files.
Introduced example binding changes:
1. Fixed reg formatting
2. Swapped #address-cells and #size-cells incorrect values
3. Renamed node: s/phy/ethernet-phy/
Signed-off-by: Rafał Miłecki <rafal@...ecki.pl>
---
I've verified this new binding using:
make dt_binding_check DT_SCHEMA_FILES=Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
---
.../bindings/net/brcm,unimac-mdio.txt | 43 ----------
.../bindings/net/brcm,unimac-mdio.yaml | 84 +++++++++++++++++++
2 files changed, 84 insertions(+), 43 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/net/brcm,unimac-mdio.txt
create mode 100644 Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
diff --git a/Documentation/devicetree/bindings/net/brcm,unimac-mdio.txt b/Documentation/devicetree/bindings/net/brcm,unimac-mdio.txt
deleted file mode 100644
index e15589f47787..000000000000
--- a/Documentation/devicetree/bindings/net/brcm,unimac-mdio.txt
+++ /dev/null
@@ -1,43 +0,0 @@
-* Broadcom UniMAC MDIO bus controller
-
-Required properties:
-- compatible: should one from "brcm,genet-mdio-v1", "brcm,genet-mdio-v2",
- "brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5" or
- "brcm,unimac-mdio"
-- reg: address and length of the register set for the device, first one is the
- base register, and the second one is optional and for indirect accesses to
- larger than 16-bits MDIO transactions
-- reg-names: name(s) of the register must be "mdio" and optional "mdio_indir_rw"
-- #size-cells: must be 1
-- #address-cells: must be 0
-
-Optional properties:
-- interrupts: must be one if the interrupt is shared with the Ethernet MAC or
- Ethernet switch this MDIO block is integrated from, or must be two, if there
- are two separate interrupts, first one must be "mdio done" and second must be
- for "mdio error"
-- interrupt-names: must be "mdio_done_error" when there is a share interrupt fed
- to this hardware block, or must be "mdio_done" for the first interrupt and
- "mdio_error" for the second when there are separate interrupts
-- clocks: A reference to the clock supplying the MDIO bus controller
-- clock-frequency: the MDIO bus clock that must be output by the MDIO bus
- hardware, if absent, the default hardware values are used
-
-Child nodes of this MDIO bus controller node are standard Ethernet PHY device
-nodes as described in Documentation/devicetree/bindings/net/phy.txt
-
-Example:
-
-mdio@...c0 {
- compatible = "brcm,unimac-mdio";
- reg = <0x403c0 0x8 0x40300 0x18>;
- reg-names = "mdio", "mdio_indir_rw";
- #size-cells = <1>;
- #address-cells = <0>;
-
- ...
- phy@0 {
- compatible = "ethernet-phy-ieee802.3-c22";
- reg = <0>;
- };
-};
diff --git a/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml b/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
new file mode 100644
index 000000000000..ffc1ee99613e
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/brcm,unimac-mdio.yaml
@@ -0,0 +1,84 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/brcm,unimac-mdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom UniMAC MDIO bus controller
+
+maintainers:
+ - Rafał Miłecki <rafal@...ecki.pl>
+
+allOf:
+ - $ref: mdio.yaml#
+
+properties:
+ compatible:
+ enum:
+ - brcm,genet-mdio-v1
+ - brcm,genet-mdio-v2
+ - brcm,genet-mdio-v3
+ - brcm,genet-mdio-v4
+ - brcm,genet-mdio-v5
+ - brcm,unimac-mdio
+
+ reg:
+ minItems: 1
+ items:
+ - description: base register
+ - description: indirect accesses to larger than 16-bits MDIO transactions
+
+ reg-names:
+ minItems: 1
+ items:
+ - const: mdio
+ - const: mdio_indir_rw
+
+ interrupts:
+ oneOf:
+ - description: >
+ Tnterrupt shared with the Ethernet MAC or Ethernet switch this MDIO
+ block is integrated from
+ - items:
+ - description: |
+ "mdio done" interrupt
+ - description: |
+ "mdio error" interrupt
+
+ interrupt-names:
+ oneOf:
+ - const: mdio_done_error
+ - items:
+ - const: mdio_done
+ - const: mdio_error
+
+ clocks:
+ description: A reference to the clock supplying the MDIO bus controller
+
+ clock-frequency:
+ description: >
+ The MDIO bus clock that must be output by the MDIO bus hardware, if
+ absent, the default hardware values are used
+
+unevaluatedProperties: false
+
+required:
+ - reg
+ - reg-names
+ - '#address-cells'
+ - '#size-cells'
+
+examples:
+ - |
+ mdio@...c0 {
+ compatible = "brcm,unimac-mdio";
+ reg = <0x403c0 0x8>, <0x40300 0x18>;
+ reg-names = "mdio", "mdio_indir_rw";
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet-phy@0 {
+ compatible = "ethernet-phy-ieee802.3-c22";
+ reg = <0>;
+ };
+ };
--
2.26.2
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