From patchwork Thu Jul 25 19:45:33 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 815159 Received: from gloria.sntech.de (gloria.sntech.de [185.11.138.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 83149762EB; Thu, 25 Jul 2024 19:46:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.11.138.130 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721936775; cv=none; b=kD2B6+xaCw0KLSn/TIb6tNSws2SUCrWQL6t5hUoTRV6+HnbBGkuzCWewgSHf6Y+iD23sl6vXMIIU5/gkvTDLBDg5ccrJfvc6QHEYp3GeQzroTGC5vOI8dmxaZ1Xzm2WcxM6P0XpPUF5O7eVOpYjCauR9NtSEJwFYMaBpqrNwyyc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721936775; c=relaxed/simple; bh=IP68vUdNzVSNudRdfpyMCb7gGfeDSlK8BmqYyXksQzg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=BEXDSbcArf+94MSjPZYtWnfs8S+rX2Zk5EfXiX42aoOI4X6/u6KwTzcTwIvt7dBczUQVjc74up+4/bIlnJ32OpaX/z0IEqVo/udxy+bq3tiwx0styeep1Os0vrkC5WL3jHvapY3GfsH/UXJp4p+IH05wGui6S0vf3HOhTM0iJBg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de; spf=pass smtp.mailfrom=sntech.de; arc=none smtp.client-ip=185.11.138.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=sntech.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=sntech.de Received: from i5e860cdd.versanet.de ([94.134.12.221] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sX4PO-0001rD-6Z; Thu, 25 Jul 2024 21:45:50 +0200 From: Heiko Stuebner To: lee@kernel.org, jdelvare@suse.com, linux@roeck-us.net, dmitry.torokhov@gmail.com, pavel@ucw.cz Cc: robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, heiko@sntech.de, ukleinek@debian.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-hwmon@vger.kernel.org, linux-input@vger.kernel.org, linux-leds@vger.kernel.org Subject: [PATCH 1/7] dt-bindings: mfd: add binding for qnap,mcu devices Date: Thu, 25 Jul 2024 21:45:33 +0200 Message-Id: <20240725194539.1780790-2-heiko@sntech.de> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240725194539.1780790-1-heiko@sntech.de> References: <20240725194539.1780790-1-heiko@sntech.de> Precedence: bulk X-Mailing-List: linux-leds@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 These MCUs can be found in network attached storage devices made by QNAP. They are connected to a serial port of the host device and provide functionality like LEDs, power-control and temperature monitoring. Signed-off-by: Heiko Stuebner --- .../devicetree/bindings/mfd/qnap,mcu.yaml | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/qnap,mcu.yaml diff --git a/Documentation/devicetree/bindings/mfd/qnap,mcu.yaml b/Documentation/devicetree/bindings/mfd/qnap,mcu.yaml new file mode 100644 index 0000000000000..3b1ad8cb54da3 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/qnap,mcu.yaml @@ -0,0 +1,43 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/qnap,mcu.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: QNAP NAS on-board Microcontroller + +maintainers: + - Heiko Stuebner + +description: | + QNAP embeds a microcontroller on their NAS devices adding system feature + as PWM Fan control, additional LEDs, power button status and more. + +properties: + compatible: + enum: + - qnap,ts433-mcu + + "#cooling-cells": + const: 2 + + cooling-levels: + description: PWM duty cycle values corresponding to thermal cooling states. + $ref: /schemas/types.yaml#/definitions/uint32-array + items: + maximum: 255 + +required: + - compatible + +additionalProperties: false + +examples: + - | + uart { + mcu { + compatible = "qnap,ts433-mcu"; + #cooling-cells = <2>; + cooling-levels = <0 64 89 128 166 204 221 238>; + }; + };