From patchwork Mon Jul 1 11:30:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Marek_Beh=C3=BAn?= X-Patchwork-Id: 13717932 X-Patchwork-Delegate: arnd@arndb.de Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id CA934C2BD09 for ; Mon, 1 Jul 2024 11:30:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id A6F8FC4AF0A; Mon, 1 Jul 2024 11:30:28 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4D9CC116B1; Mon, 1 Jul 2024 11:30:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1719833428; bh=q2YjRmUir1aiAl/k4LwkYLq9quRlecYb+uj2zNUnYKE=; h=From:List-Id:To:Cc:Subject:Date:In-Reply-To:References:From; b=rOlbWRpKDN49oHJknz5nZDcp7Pwgr9X+B3AD7OG3gM7nl8qgNTRqeWJ7zSNQInE2d F0gpl3qk1UezStjdek4MGeWzMaiNw7Szs1ntkbMLH6ynpPvBlkYuqnb15BKRvjoTDQ Ro+l0uwhS7m6MmFLztv5RuKQp6EyC3dXBj316fjReNS+2PkvsSM62OdSEaUUtGy2ms 5ddC0va7XU2nyQ6NosTcnbEB+blb4ron44IbjE+W5eu9UoBqPwuEErx5HEXJW5QNX3 Kl0++48dflBxCOcRUdlQO48YiMD18KBCyMdD/tvfVGAUh7uWgBtXDgNAHpTVZA3xlE qJrVng4idE50g== From: =?utf-8?q?Marek_Beh=C3=BAn?= List-Id: To: Arnd Bergmann , soc@kernel.org Cc: Gregory CLEMENT , arm@kernel.org, Andy Shevchenko , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , =?utf-8?q?M?= =?utf-8?q?arek_Beh=C3=BAn?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Krzysztof Kozlowski , Conor Dooley Subject: [PATCH v13 1/8] dt-bindings: firmware: add cznic,turris-omnia-mcu binding Date: Mon, 1 Jul 2024 13:30:03 +0200 Message-ID: <20240701113010.16447-2-kabel@kernel.org> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20240701113010.16447-1-kabel@kernel.org> References: <20240701113010.16447-1-kabel@kernel.org> MIME-Version: 1.0 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 Reviewed-by: Krzysztof Kozlowski Reviewed-by: Conor Dooley --- .../firmware/cznic,turris-omnia-mcu.yaml | 86 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 87 insertions(+) create mode 100644 Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml diff --git a/Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml b/Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml new file mode 100644 index 000000000000..af9249695ef5 --- /dev/null +++ b/Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/firmware/cznic,turris-omnia-mcu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: CZ.NIC's Turris Omnia MCU + +maintainers: + - Marek Behún + +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 + description: | + The first cell specifies the interrupt number (0 to 63), the second cell + specifies interrupt type (which can be one of IRQ_TYPE_EDGE_RISING, + IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH). + The interrupt numbers correspond sequentially to GPIO numbers, taking the + GPIO banks into account: + IRQ number GPIO bank GPIO pin within bank + 0 - 15 0 0 - 15 + 16 - 47 1 0 - 31 + 48 - 63 2 0 - 15 + There are several exceptions: + IRQ number meaning + 11 LED panel brightness changed by button press + 13 TRNG entropy ready + 14 ECDSA message signature computation done + + gpio-controller: true + + '#gpio-cells': + const: 3 + description: + The first cell is bank number (0, 1 or 2), the second cell is pin number + within the bank (0 to 15 for banks 0 and 2, 0 to 31 for bank 1), and the + third cell specifies consumer flags. + +required: + - compatible + - reg + - interrupts + - interrupt-controller + - gpio-controller + +additionalProperties: false + +examples: + - | + #include + + 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 = <3>; + + interrupt-controller; + #interrupt-cells = <2>; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 3c4fdf74a3f9..37da14d4fb4f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2210,6 +2210,7 @@ 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/firmware/cznic,turris-mox-rwtm.txt +F: Documentation/devicetree/bindings/firmware/cznic,turris-omnia-mcu.yaml F: Documentation/devicetree/bindings/gpio/gpio-moxtet.txt F: Documentation/devicetree/bindings/leds/cznic,turris-omnia-leds.yaml F: Documentation/devicetree/bindings/watchdog/armada-37xx-wdt.txt