linux-kernel - [PATCH] dt-bindings: mips: lantiq: Document Lantiq Xway VMMC

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Message-ID: <20250814161748.3230278-1-olek2@wp.pl>
Date: Thu, 14 Aug 2025 18:17:45 +0200
From: Aleksander Jan Bajkowski <olek2@...pl>
To: tsbogend@...ha.franken.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	olek2@...pl,
	linux-mips@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: mips: lantiq: Document Lantiq Xway VMMC

The Lantiq SoCs have a 2nd mips core called "voice mips macro core (vmmc)"
which is used to run the voice firmware.

Signed-off-by: Aleksander Jan Bajkowski <olek2@...pl>
---
 .../mips/lantiq/lantiq,vmmc-xway.yaml         | 51 +++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mips/lantiq/lantiq,vmmc-xway.yaml

diff --git a/Documentation/devicetree/bindings/mips/lantiq/lantiq,vmmc-xway.yaml b/Documentation/devicetree/bindings/mips/lantiq/lantiq,vmmc-xway.yaml
new file mode 100644
index 000000000000..bee64f6d0e97
--- /dev/null
+++ b/Documentation/devicetree/bindings/mips/lantiq/lantiq,vmmc-xway.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mips/lantiq/lantiq,vmmc-xway.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Lantiq VMMC (Voice MIPS Macro Core)
+
+maintainers:
+  - Aleksander Jan Bajkowski <olek2@...pl>
+
+description:
+  The Lantiq SoCs have a 2nd mips core called "Voice MIPS Macro Core (VMMC)"
+  which is used to run the voice firmware. The firmware handles analog
+  telephone lines.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - lantiq,vmmc-xway
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 6
+    maxItems: 6
+
+  gpios: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    vmmc@...000 {
+        compatible = "lantiq,vmmc-xway";
+        reg = <0x107000 0x300>;
+        interrupt-parent = <&icu0>;
+        interrupts = <150>, <151>, <152>, <153>, <154>, <155>;
+        gpios = <&gpio 30 GPIO_ACTIVE_HIGH
+                 &gpio 31 GPIO_ACTIVE_HIGH
+                 &gpio 3  GPIO_ACTIVE_HIGH>;
+
+    };
-- 
2.47.2