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Message-ID: <20251014153009.3783183-1-robh@kernel.org>
Date: Tue, 14 Oct 2025 10:30:05 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Marek Behún <kabel@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] dt-bindings: bus: Convert cznic,moxtet to DT schema
Convert the cznic,moxtet binding to DT schema format. It's a
straight-forward conversion.
Signed-off-by: Rob Herring (Arm) <robh@...nel.org>
---
.../devicetree/bindings/bus/cznic,moxtet.yaml | 94 +++++++++++++++++++
.../devicetree/bindings/bus/moxtet.txt | 46 ---------
MAINTAINERS | 2 +-
3 files changed, 95 insertions(+), 47 deletions(-)
create mode 100644 Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
delete mode 100644 Documentation/devicetree/bindings/bus/moxtet.txt
diff --git a/Documentation/devicetree/bindings/bus/cznic,moxtet.yaml b/Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
new file mode 100644
index 000000000000..d340899ca5f1
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
@@ -0,0 +1,94 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/cznic,moxtet.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Turris Moxtet SPI bus
+
+maintainers:
+ - Marek Behún <kabel@...nel.org>
+
+description: >
+ Turris Mox module status and configuration bus (over SPI)
+
+ The driver finds the devices connected to the bus by itself, but it may be
+ needed to reference some of them from other parts of the device tree. In that
+ case the devices can be defined as subnodes of the moxtet node.
+
+properties:
+ compatible:
+ const: cznic,moxtet
+
+ reg:
+ maxItems: 1
+
+ "#address-cells":
+ const: 1
+
+ "#size-cells":
+ const: 0
+
+ spi-cpol: true
+
+ spi-cpha: true
+
+ spi-max-frequency: true
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-gpios:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - "#address-cells"
+ - "#size-cells"
+ - spi-cpol
+ - spi-cpha
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+
+additionalProperties:
+ type: object
+
+ required:
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ moxtet@1 {
+ compatible = "cznic,moxtet";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ reg = <1>;
+ spi-max-frequency = <10000000>;
+ spi-cpol;
+ spi-cpha;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ interrupt-parent = <&gpiosb>;
+ interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+
+ gpio@0 {
+ compatible = "cznic,moxtet-gpio";
+ gpio-controller;
+ #gpio-cells = <2>;
+ reg = <0>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/bus/moxtet.txt b/Documentation/devicetree/bindings/bus/moxtet.txt
deleted file mode 100644
index fb50fc865336..000000000000
--- a/Documentation/devicetree/bindings/bus/moxtet.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-Turris Mox module status and configuration bus (over SPI)
-
-Required properties:
- - compatible : Should be "cznic,moxtet"
- - #address-cells : Has to be 1
- - #size-cells : Has to be 0
- - spi-cpol : Required inverted clock polarity
- - spi-cpha : Required shifted clock phase
- - interrupts : Must contain reference to the shared interrupt line
- - interrupt-controller : Required
- - #interrupt-cells : Has to be 1
-
-For other required and optional properties of SPI slave nodes please refer to
-../spi/spi-bus.txt.
-
-Required properties of subnodes:
- - reg : Should be position on the Moxtet bus (how many Moxtet
- modules are between this module and CPU module, so
- either 0 or a positive integer)
-
-The driver finds the devices connected to the bus by itself, but it may be
-needed to reference some of them from other parts of the device tree. In that
-case the devices can be defined as subnodes of the moxtet node.
-
-Example:
-
- moxtet@1 {
- compatible = "cznic,moxtet";
- #address-cells = <1>;
- #size-cells = <0>;
- reg = <1>;
- spi-max-frequency = <10000000>;
- spi-cpol;
- spi-cpha;
- interrupt-controller;
- #interrupt-cells = <1>;
- interrupt-parent = <&gpiosb>;
- interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
-
- moxtet_sfp: gpio@0 {
- compatible = "cznic,moxtet-gpio";
- gpio-controller;
- #gpio-cells = <2>;
- reg = <0>;
- }
- };
diff --git a/MAINTAINERS b/MAINTAINERS
index 1741b9f549d2..7196970eed39 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2658,7 +2658,7 @@ F: Documentation/ABI/testing/debugfs-moxtet
F: Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
F: Documentation/ABI/testing/sysfs-bus-moxtet-devices
F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
-F: Documentation/devicetree/bindings/bus/moxtet.txt
+F: Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
F: Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml
F: Documentation/devicetree/bindings/interrupt-controller/marvell,mpic.yaml
--
2.51.0
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