[PATCH v3] dt-bindings: net: ti,davinci-emac: Convert to DT schema

[Bhargav Joshi <j.bhargav.u@gmail.com>]

Convert Texas Instruments DaVinci EMAC binding from text to DT schema.

Changes from the original binding:
- Add clocks, clock-names, syscon, power-domains, and ti,hwmods
  properties that are used in existing DTS files but were undocumented.
- Disallow syscon and clock-names for ti,davinci-dm6467-emac since they
  are not applicable to that SoC.
- Allow 1-2 reg entries for DM816.
- Make clocks a required property as driver probe fails without it.
- Mark ti,hwmods as deprecated.

Signed-off-by: Bhargav Joshi <j.bhargav.u@gmail.com>
---
Changes in v3:
- Rebase to latest mainline rc.
- Allow 2 regs for DM816x only.
- Link to v2: https://lore.kernel.org/r/20260818-ti-davinci-emac-v2-1-805736d99e65@gmail.com

Changes in v2:
- Remove original text binding that was left in v1
- Link to v1: https://lore.kernel.org/r/20260817-ti-davinci-emac-v1-1-022678d966e9@gmail.com
---
 .../devicetree/bindings/net/davinci_emac.txt       |  44 -------
 .../devicetree/bindings/net/ti,davinci-emac.yaml   | 127 +++++++++++++++++++++
 2 files changed, 127 insertions(+), 44 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/davinci_emac.txt b/Documentation/devicetree/bindings/net/davinci_emac.txt
deleted file mode 100644
index 5e3579e72e2d..000000000000
--- a/Documentation/devicetree/bindings/net/davinci_emac.txt
+++ /dev/null
@@ -1,44 +0,0 @@
-* Texas Instruments Davinci EMAC
-
-This file provides information, what the device node
-for the davinci_emac interface contains.
-
-Required properties:
-- compatible: "ti,davinci-dm6467-emac", "ti,am3517-emac" or
-  "ti,dm816-emac"
-- reg: Offset and length of the register set for the device
-- ti,davinci-ctrl-reg-offset: offset to control register
-- ti,davinci-ctrl-mod-reg-offset: offset to control module register
-- ti,davinci-ctrl-ram-offset: offset to control module ram
-- ti,davinci-ctrl-ram-size: size of control module ram
-- interrupts: interrupt mapping for the davinci emac interrupts sources:
-              4 sources: <Receive Threshold Interrupt
-			  Receive Interrupt
-			  Transmit Interrupt
-			  Miscellaneous Interrupt>
-
-Optional properties:
-- phy-handle: See ethernet.txt file in the same directory.
-              If absent, davinci_emac driver defaults to 100/FULL.
-- ti,davinci-rmii-en: 1 byte, 1 means use RMII
-- ti,davinci-no-bd-ram: boolean, does EMAC have BD RAM?
-
-The MAC address will be determined using the optional properties
-defined in ethernet.txt.
-
-Example (enbw_cmc board):
-	eth0: emac@1e20000 {
-		compatible = "ti,davinci-dm6467-emac";
-		reg = <0x220000 0x4000>;
-		ti,davinci-ctrl-reg-offset = <0x3000>;
-		ti,davinci-ctrl-mod-reg-offset = <0x2000>;
-		ti,davinci-ctrl-ram-offset = <0>;
-		ti,davinci-ctrl-ram-size = <0x2000>;
-		local-mac-address = [ 00 00 00 00 00 00 ];
-		interrupts = <33
-				34
-				35
-				36
-				>;
-		interrupt-parent = <&intc>;
-	};
diff --git a/Documentation/devicetree/bindings/net/ti,davinci-emac.yaml b/Documentation/devicetree/bindings/net/ti,davinci-emac.yaml
new file mode 100644
index 000000000000..f0c539d1bac7
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ti,davinci-emac.yaml
@@ -0,0 +1,127 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/ti,davinci-emac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DaVinci EMAC Ethernet Controller
+
+maintainers:
+  - Tony Lindgren <tony@atomide.com>
+
+properties:
+  compatible:
+    enum:
+      - ti,davinci-dm6467-emac
+      - ti,am3517-emac
+      - ti,dm816-emac
+
+  reg:
+    minItems: 1
+    items:
+      - description: EMAC core
+      - description: EMAC control module
+
+  interrupts:
+    items:
+      - description: Receive Threshold
+      - description: Receive
+      - description: Transmit
+      - description: Miscellaneous
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: ick
+
+  ti,davinci-ctrl-reg-offset:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: offset to control register
+
+  ti,davinci-ctrl-mod-reg-offset:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: offset to control module register
+
+  ti,davinci-ctrl-ram-offset:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: offset to control module ram
+
+  ti,davinci-ctrl-ram-size:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: size of control module ram
+
+  ti,davinci-rmii-en:
+    $ref: /schemas/types.yaml#/definitions/uint8
+    description: Set to 1 to enable RMII (Reduced MII) mode.
+
+  ti,davinci-no-bd-ram:
+    type: boolean
+    description:
+      Indicates that the EMAC does not have on-chip buffer descriptor RAM.
+
+  syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to a syscon node providing access to the System Control
+      Module (SCM) registers. Used on AM3517 and DM816x to read
+      factory-programmed MAC addresses from eFuse registers.
+
+  ti,hwmods:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: TI hwmod name
+    deprecated: true
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - ti,davinci-ctrl-reg-offset
+  - ti,davinci-ctrl-mod-reg-offset
+  - ti,davinci-ctrl-ram-offset
+  - ti,davinci-ctrl-ram-size
+  - clocks
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,davinci-dm6467-emac
+    then:
+      properties:
+        syscon: false
+        clock-names: false
+        reg:
+          maxItems: 1
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: ti,am3517-emac
+    then:
+      properties:
+        reg:
+          maxItems: 1
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ethernet@220000 {
+        compatible = "ti,davinci-dm6467-emac";
+        reg = <0x220000 0x4000>;
+        ti,davinci-ctrl-reg-offset = <0x3000>;
+        ti,davinci-ctrl-mod-reg-offset = <0x2000>;
+        ti,davinci-ctrl-ram-offset = <0>;
+        ti,davinci-ctrl-ram-size = <0x2000>;
+        local-mac-address = [ 00 00 00 00 00 00 ];
+        interrupts = <33>, <34>, <35>, <36>;
+        clocks = <&psc1 5>;
+        power-domains = <&psc1 5>;
+    };

---
base-commit: 8d3ae59288f1e7d58d76558a6ee96d533bc5019f
change-id: 20260817-ti-davinci-emac-7ec97feca43e

Best regards,
-- 
Bhargav