From: "Marek Behún" <kabel@kernel.org>
To: Gregory CLEMENT <gregory.clement@bootlin.com>,
Arnd Bergmann <arnd@arndb.de>,
soc@kernel.org, arm@kernel.org, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
devicetree@vger.kernel.org
Cc: "Marek Behún" <kabel@kernel.org>
Subject: [PATCH v2 1/7] dt-bindings: arm: add cznic,turris-omnia-mcu binding
Date: Tue, 19 Sep 2023 12:38:09 +0200 [thread overview]
Message-ID: <20230919103815.16818-2-kabel@kernel.org> (raw)
In-Reply-To: <20230919103815.16818-1-kabel@kernel.org>
Add binding for cznic,turris-omnia-mcu, the device-tree node
representing the system-controller features provided by the MCU on the
Turris Omnia router.
Signed-off-by: Marek Behún <kabel@kernel.org>
---
.../bindings/arm/cznic,turris-omnia-mcu.yaml | 67 +++++++++++++++++++
MAINTAINERS | 1 +
2 files changed, 68 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml
diff --git a/Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml b/Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml
new file mode 100644
index 000000000000..ea1fd0117bb8
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/arm/cznic,turris-omnia-mcu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: CZ.NIC's Turris Omnia MCU
+
+maintainers:
+ - Marek Behún <kabel@kernel.org>
+
+description:
+ The MCU on Turris Omnia acts as a system controller providing additional
+ GPIOs, interrupts, watchdog, system power off and wakeup configuration.
+
+properties:
+ compatible:
+ const: cznic,turris-omnia-mcu
+
+ reg:
+ description: MCU I2C slave address
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ '#interrupt-cells':
+ const: 2
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ const: 2
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+ - gpio-controller
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ system-controller@2a {
+ compatible = "cznic,turris-omnia-mcu";
+ reg = <0x2a>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <11 IRQ_TYPE_NONE>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index bf0f54c24f81..0a4d7d6ed63a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2091,6 +2091,7 @@ W: https://www.turris.cz/
F: Documentation/ABI/testing/debugfs-moxtet
F: Documentation/ABI/testing/sysfs-bus-moxtet-devices
F: Documentation/ABI/testing/sysfs-firmware-turris-mox-rwtm
+F: Documentation/devicetree/bindings/arm/cznic,turris-omnia-mcu.yaml
F: Documentation/devicetree/bindings/bus/moxtet.txt
F: Documentation/devicetree/bindings/firmware/cznic,turris-mox-rwtm.txt
F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt
--
2.41.0
next prev parent reply other threads:[~2023-09-19 10:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-19 10:38 [PATCH v2 0/7] Turris Omnia MCU driver Marek Behún
2023-09-19 10:38 ` Marek Behún [this message]
2023-09-20 12:37 ` [PATCH v2 1/7] dt-bindings: arm: add cznic,turris-omnia-mcu binding Krzysztof Kozlowski
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