From patchwork Mon Jan 3 16:33:48 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marcello Sylvester Bauer X-Patchwork-Id: 12702665 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 107AEC433FE for ; Mon, 3 Jan 2022 16:41:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233048AbiACQlm (ORCPT ); Mon, 3 Jan 2022 11:41:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231146AbiACQlk (ORCPT ); Mon, 3 Jan 2022 11:41:40 -0500 X-Greylist: delayed 399 seconds by postgrey-1.37 at lindbergh.monkeyblade.net; Mon, 03 Jan 2022 08:41:40 PST Received: from mout-y-111.mailbox.org (mout-y-111.mailbox.org [IPv6:2001:67c:2050:1::465:111]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2042EC061785; Mon, 3 Jan 2022 08:41:40 -0800 (PST) Received: from smtp202.mailbox.org (smtp202.mailbox.org [IPv6:2001:67c:2050:105:465:1:4:0]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-y-111.mailbox.org (Postfix) with ESMTPS id 4JSLv74cSrzQlLN; Mon, 3 Jan 2022 17:34:59 +0100 (CET) X-Virus-Scanned: amavisd-new at heinlein-support.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sylv.io; s=MBO0001; t=1641227697; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=xMrRSAFFQ28kkRErHsEHfo+NPf5sueFwy0kVjjKr9jw=; b=obmSI9kz6ea/GSHI0nlpnkgVVFZvRG7UR6KcbP+zmWhL6YWTZRWBw6qdiWEhe6Igx31Wtf kMLxDAuNsTo+oPbVD3l7l24xmxDbx1H9PcItAV/wR6SW/BU9yONh6YvYW8c1LBgHwU2MDN mCw6Cp/K3LFYFnNk0OtB0IAXi1vloGfVWQ9Zx63j5N2MzXfcxy70C8FNJhjduskXT2SUv1 tyiio4Zy2uzgqkMAxd92twhu4Bvjj2T9DXIuuELRnlQYPfFr5Rl2nWXQaUN6QWe6ADGehU fohDY6khF3GZtZvgG9zff99oSpqu/FlvdbBycEKaCJ50JqW6iZhnnEa+LHHPkg== From: Marcello Sylvester Bauer To: linux-hwmon@vger.kernel.org Cc: Marcello Sylvester Bauer , Patrick Rudolph , Jean Delvare , Guenter Roeck , Rob Herring , Roland Stigge , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v1 3/4] dt-bindings: hwmon: Add binding for max6639 Date: Mon, 3 Jan 2022 17:33:48 +0100 Message-Id: In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-hwmon@vger.kernel.org Add Devicetree binding documentation for Maxim MAX6639 temperature monitor with PWM fan-speed controller. The devicetree documentation for the SD3078 device tree. Signed-off-by: Marcello Sylvester Bauer --- .../bindings/hwmon/maxim,max6639.yaml | 71 +++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml diff --git a/Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml b/Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml new file mode 100644 index 000000000000..136ed37b6aac --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/maxim,max6639.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- + +$id: http://devicetree.org/schemas/hwmon/maxim,max6639.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim max6639 + +maintainers: + - Roland Stigge + +description: | + The MAX6639 is a 2-channel temperature monitor with dual, automatic, PWM + fan-speed controller. It monitors its own temperature and one external + diode-connected transistor or the temperatures of two external diode-connected + transistors, typically available in CPUs, FPGAs, or GPUs. + + Datasheets: + https://datasheets.maximintegrated.com/en/ds/MAX6639-MAX6639F.pdf + +properties: + compatible: + enum: + - maxim,max6639 + + reg: + maxItems: 1 + + polarity: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1] + description: + PWM output is low at 100% duty cycle when this bit is set to zero. PWM + output is high at 100% duty cycle when this bit is set to 1. + Fans PWM polarity is set to high (1) by default. + + pulses-per-revolution: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 2, 3, 4] + description: + Value specifying the number of pulses per revolution of the controlled + FAN. + + rpm-range: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [2000, 4000, 8000, 16000] + description: + Scales the tachometer counter by setting the maximum (full-scale) value + of the RPM range. + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + max6639@10 { + compatible = "maxim,max6639"; + reg = <0x10>; + polarity = <1>; + pulses-per-revolution = <2>; + rpm-range = <4000>; + }; + };