Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: bus: Convert cznic,moxtet to DT schema
Convert the cznic,moxtet binding to DT schema format. It's a
straight-forward conversion.
Reviewed-by: Marek Behún <kabel@kernel.org>
Link: https://patch.msgid.link/20251014153009.3783183-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
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Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
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Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
···
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/bus/cznic,moxtet.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Turris Moxtet SPI bus
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maintainers:
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- Marek Behún <kabel@kernel.org>
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description: >
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Turris Mox module status and configuration bus (over SPI)
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The driver finds the devices connected to the bus by itself, but it may be
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needed to reference some of them from other parts of the device tree. In that
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case the devices can be defined as subnodes of the moxtet node.
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properties:
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compatible:
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const: cznic,moxtet
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reg:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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spi-cpol: true
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spi-cpha: true
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spi-max-frequency: true
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interrupt-controller: true
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"#interrupt-cells":
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const: 1
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interrupts:
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maxItems: 1
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reset-gpios:
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maxItems: 1
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required:
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- compatible
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- reg
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- "#address-cells"
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- "#size-cells"
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- spi-cpol
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- spi-cpha
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- interrupts
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- interrupt-controller
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- "#interrupt-cells"
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additionalProperties:
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type: object
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required:
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- reg
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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moxtet@1 {
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compatible = "cznic,moxtet";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <1>;
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spi-max-frequency = <10000000>;
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spi-cpol;
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spi-cpha;
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interrupt-controller;
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#interrupt-cells = <1>;
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interrupt-parent = <&gpiosb>;
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interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
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gpio@0 {
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compatible = "cznic,moxtet-gpio";
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gpio-controller;
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#gpio-cells = <2>;
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reg = <0>;
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};
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};
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};
-46
Documentation/devicetree/bindings/bus/moxtet.txt
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Documentation/devicetree/bindings/bus/moxtet.txt
···
1
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Turris Mox module status and configuration bus (over SPI)
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Required properties:
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- compatible : Should be "cznic,moxtet"
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- #address-cells : Has to be 1
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- #size-cells : Has to be 0
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- spi-cpol : Required inverted clock polarity
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- spi-cpha : Required shifted clock phase
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- interrupts : Must contain reference to the shared interrupt line
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- interrupt-controller : Required
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- #interrupt-cells : Has to be 1
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For other required and optional properties of SPI slave nodes please refer to
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../spi/spi-bus.txt.
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Required properties of subnodes:
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- reg : Should be position on the Moxtet bus (how many Moxtet
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modules are between this module and CPU module, so
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either 0 or a positive integer)
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The driver finds the devices connected to the bus by itself, but it may be
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needed to reference some of them from other parts of the device tree. In that
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case the devices can be defined as subnodes of the moxtet node.
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Example:
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moxtet@1 {
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compatible = "cznic,moxtet";
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#address-cells = <1>;
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#size-cells = <0>;
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reg = <1>;
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spi-max-frequency = <10000000>;
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spi-cpol;
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spi-cpha;
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interrupt-controller;
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#interrupt-cells = <1>;
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interrupt-parent = <&gpiosb>;
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interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
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moxtet_sfp: gpio@0 {
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compatible = "cznic,moxtet-gpio";
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gpio-controller;
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#gpio-cells = <2>;
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reg = <0>;
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}
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};
+1
-1
MAINTAINERS
+1
-1
MAINTAINERS
···
2656
2656
F: Documentation/ABI/testing/sysfs-bus-i2c-devices-turris-omnia-mcu
2657
2657
F: Documentation/ABI/testing/sysfs-bus-moxtet-devices
2658
2658
F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
2659
-
F: Documentation/devicetree/bindings/bus/moxtet.txt
2659
+
F: Documentation/devicetree/bindings/bus/cznic,moxtet.yaml
2660
2660
F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
2661
2661
F: Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml
2662
2662
F: Documentation/devicetree/bindings/interrupt-controller/marvell,mpic.yaml