From patchwork Wed Jun 5 16:18:44 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: 13687098 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 C4C7DC25B76 for ; Wed, 5 Jun 2024 16:19:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) id 963ABC4AF12; Wed, 5 Jun 2024 16:19:03 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CADB4C4AF0E; Wed, 5 Jun 2024 16:19:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1717604343; bh=nLmC7xOj26pqQM6T8ETIbdnhuBw4L1B2h+4+G1rZ280=; h=From:List-Id:To:Cc:Subject:Date:In-Reply-To:References:From; b=helrhk+p/JKREiblhLoXEOtZ/dF6N0OOlByMSlVLeOx1jQPlKr+1zqut0ymutf+G9 Nsfp/nyhZuBVbtifdx1ceh3FIgcTa9hWGsKzVt6D7A9JKAhdX9pH48XKiVTTjARweC RL9ws1oCSlhoXdgpEfqdfo+V4Xw7LNPvxpO5zuFkoXdpHSvduI7YH0QK6aMdQAB8km 2dnAA9Qn0PRO+RpYcgEydxRP2wdM3aZVDXQpeo4WLrQ5ybbtT5oFS9l100Qzj1uKFG vvKGen6sH52BMk9JvyCtg1b9o4UO0F0amO1q8nCDimhAVScxUHlIC9a/KwRJnbN0I7 FslLKTpPmUAIg== From: =?utf-8?q?Marek_Beh=C3=BAn?= List-Id: To: Gregory CLEMENT , Arnd Bergmann , soc@kernel.org, arm@kernel.org, Andy Shevchenko , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= Cc: =?utf-8?q?Marek_Beh=C3=BAn?= , Rob Herring , Krzysztof Kozlowski , Conor Dooley , devicetree@vger.kernel.org, Krzysztof Kozlowski , Conor Dooley Subject: [PATCH v11 1/8] dt-bindings: firmware: add cznic,turris-omnia-mcu binding Date: Wed, 5 Jun 2024 18:18:44 +0200 Message-ID: <20240605161851.13911-2-kabel@kernel.org> X-Mailer: git-send-email 2.44.2 In-Reply-To: <20240605161851.13911-1-kabel@kernel.org> References: <20240605161851.13911-1-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 8754ac2c259d..ee8b6dcd8f53 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2211,6 +2211,7 @@ 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