From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A0EF5C47404 for ; Fri, 4 Oct 2019 13:55:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 64D83222C7 for ; Fri, 4 Oct 2019 13:55:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=analog.onmicrosoft.com header.i=@analog.onmicrosoft.com header.b="7dsJ/cCH" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388689AbfJDNzh (ORCPT ); Fri, 4 Oct 2019 09:55:37 -0400 Received: from mx0b-00128a01.pphosted.com ([148.163.139.77]:57418 "EHLO mx0b-00128a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388673AbfJDNzh (ORCPT ); Fri, 4 Oct 2019 09:55:37 -0400 Received: from pps.filterd (m0167091.ppops.net [127.0.0.1]) by mx0b-00128a01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id x94DrA8l005136; Fri, 4 Oct 2019 09:55:02 -0400 Received: from nam03-by2-obe.outbound.protection.outlook.com (mail-by2nam03lp2056.outbound.protection.outlook.com [104.47.42.56]) by mx0b-00128a01.pphosted.com with ESMTP id 2va19d29tg-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 04 Oct 2019 09:55:02 -0400 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=CP9vzamI7WevEKHv0RvaBSPNXeDIuWACLWl1DXk2ZO67REbCIfGm9erEaE1wnrQfRven785KTrcbY0Ve6ooozGDD/chVkr3IrgEzwin8cHziFynW23alEEZNtrSzwaydApqUiaJdMq1IlnmRzu6E6mn4hz0m9MhmG8katCPjJ52dtudHezpN9+NfKAw04xIHKcEm96ZJ5CysGlbNQXcZgnPV5Ah/WXbY1GBbDB9OGAuIN7pZjACsX08trQaoFnyFQeZ91FSKOMVVa7QoRJcpiSXNv8qvcmg9lM19/EP7p2YqHsOSkv4BQ0Q42uo/puGMtqN8kWb/3GrfU9ou1FBxHg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=k6xyDhtOKzsjn/jG3IbrNMHebEuVgll3FsiO9f+Ntpw=; b=evXck3TjFyNoSxU1tr5oRsrfhww1ucSGrZUQR8rJp7wc0aBYh30IPZ/Dna8QKFl0IcmoinBuMGUq1CoO5YBMPhjmshRBCD6O2ae9vaXvSHZLVq1popKy9Q/CvjuZqU6sT3N4Fz0nBkRQx3xnFFGqiNHEQqjWoPwFwzaZuVBZ1yAscIDJ72G/VTPX9MxT6tPTERq/iqqb48riZDJcElV4x7oCFoH4uImHVy+2ZRL9McPUYWUnbjCeO8PbIzlZ4hlbFyFu44cu1XfbEpMI3mdeqNhDbzs/TfQ91mtu2Lux7UI3g594QV8fx1CCdOi5EFSnlSW7BIjTUkcR3A8vgUOWSQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 137.71.25.55) smtp.rcpttodomain=kernel.org smtp.mailfrom=analog.com; dmarc=bestguesspass action=none header.from=analog.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.onmicrosoft.com; s=selector2-analog-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=k6xyDhtOKzsjn/jG3IbrNMHebEuVgll3FsiO9f+Ntpw=; b=7dsJ/cCHG/E4CazOfIHL2ROFEMyPyJCuF64HgZULNaXP20Y/Petp/8i8YvXFK1lVi082vzgIul71ixrEJulwPehHIwpBxZvbqDXx6kB4mwDSuTkq74URY+BlxZppmIoNSZdULfTQoB/XMTxrdna0YnMxcotmFN25CSZ2fQpqdYE= Received: from MWHPR03CA0001.namprd03.prod.outlook.com (2603:10b6:300:117::11) by DM6PR03MB5083.namprd03.prod.outlook.com (2603:10b6:5:1e3::20) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2305.20; Fri, 4 Oct 2019 13:54:59 +0000 Received: from SN1NAM02FT025.eop-nam02.prod.protection.outlook.com (2a01:111:f400:7e44::207) by MWHPR03CA0001.outlook.office365.com (2603:10b6:300:117::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2327.24 via Frontend Transport; Fri, 4 Oct 2019 13:54:59 +0000 Received-SPF: Pass (protection.outlook.com: domain of analog.com designates 137.71.25.55 as permitted sender) receiver=protection.outlook.com; client-ip=137.71.25.55; helo=nwd2mta1.analog.com; Received: from nwd2mta1.analog.com (137.71.25.55) by SN1NAM02FT025.mail.protection.outlook.com (10.152.72.87) with Microsoft SMTP Server (version=TLS1_0, cipher=TLS_RSA_WITH_AES_256_CBC_SHA) id 15.20.2327.21 via Frontend Transport; Fri, 4 Oct 2019 13:54:58 +0000 Received: from NWD2HUBCAS7.ad.analog.com (nwd2hubcas7.ad.analog.com [10.64.69.107]) by nwd2mta1.analog.com (8.13.8/8.13.8) with ESMTP id x94Dsqad029161 (version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=OK); Fri, 4 Oct 2019 06:54:52 -0700 Received: from nsa.sphairon.box (10.44.3.90) by NWD2HUBCAS7.ad.analog.com (10.64.69.107) with Microsoft SMTP Server (TLS) id 14.3.408.0; Fri, 4 Oct 2019 09:54:57 -0400 From: =?UTF-8?q?Nuno=20S=C3=A1?= To: , CC: , , , , , Subject: [PATCH v3 2/2] dt-bindings: iio: Add ltc2983 documentation Date: Fri, 4 Oct 2019 15:55:19 +0200 Message-ID: <20191004135519.191657-2-nuno.sa@analog.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191004135519.191657-1-nuno.sa@analog.com> References: <20191004135519.191657-1-nuno.sa@analog.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.44.3.90] X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: CIP:137.71.25.55;IPV:NLI;CTRY:US;EFV:NLI;SFV:NSPM;SFS:(10009020)(136003)(396003)(346002)(39860400002)(376002)(199004)(189003)(2616005)(5660300002)(2906002)(1076003)(476003)(30864003)(23676004)(5820100001)(2870700001)(76176011)(966005)(3846002)(26005)(47776003)(486006)(446003)(356004)(6116002)(478600001)(126002)(16526019)(11346002)(36756003)(426003)(336012)(53416004)(186003)(6666004)(14444005)(8676002)(106002)(6306002)(316002)(45776006)(110136005)(50466002)(54906003)(70586007)(4326008)(70206006)(86362001)(50226002)(8936002)(305945005)(7736002)(7636002)(246002);DIR:OUT;SFP:1101;SCL:1;SRVR:DM6PR03MB5083;H:nwd2mta1.analog.com;FPR:;SPF:Pass;LANG:en;PTR:nwd2mail10.analog.com;A:1;MX:1; X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 8e0f5a84-5133-4cd1-e8e3-08d748d2720b X-MS-TrafficTypeDiagnostic: DM6PR03MB5083: X-MS-Exchange-PUrlCount: 4 X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:8882; X-Forefront-PRVS: 018093A9B5 X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: K9irrtgD7pXlII2LhVQX/8b3XzCMCoBINQQpgOZaIW20T32iWkhEO9haWko3v/D9yHG7+z8JSQEpPasNdUlKQHnvgKA40K8selGFIhQ+9kpXpaIZjrlfFnnVVv6ASz2zX8y/Tv8QyykDykLMbp7r47yGV1mGvsYatKpuk7y1ogzmawVDRRcyaAUW2i9CiuiGrhmAIKYHzslRNAEw7zclqezKJ1XTDgbd3pN/2wfjR7o2l03GKHAjYdnJa+GAa1g0mvPfTxwx72ZiNu79G6COpOg8Ww39ypJKB8rmarbrPODTgEWr2SPbcT312jjvKUw3ntibPpxVx1snFBaACI+UWJ9GTOpt4ZGwsMU68IiFX0ytObavyfvaVwTbMQjVL+/1czg/MyGfgDuBsEBLowJN1t41/Ib1H3n8t50EcPKbC9NT3/Gd0vmtTNazB96zBTRXnRILCfcXZCV/W1/RaFA0ag== X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 04 Oct 2019 13:54:58.8798 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8e0f5a84-5133-4cd1-e8e3-08d748d2720b X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a;Ip=[137.71.25.55];Helo=[nwd2mta1.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR03MB5083 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-04_07:2019-10-03,2019-10-04 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=999 adultscore=0 spamscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 impostorscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1908290000 definitions=main-1910040130 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Document the LTC2983 temperature sensor devicetree bindings. Signed-off-by: Nuno Sá --- Changes in v2: * Drop maxItems in non-array elements; * Set adi,mux-delay-config-us instead of adi,mux-delay-config; * Wrapped lines at 80 char; * Added comas to enum elements; * Use real units in adi,excitation-current; * Moved some enums to minimum and maximum; * Grouped patternProperties and moved reg property as a generic property. Changes in v3: * Add meaning to adi,sensor-type values which are not const; * Add meaning to adi,filter-notch-freq values; * Break up adi,sensor-config into human readable elements; * Set maxItems/minItems at the same identation as allOf in adi,custom-sensor; * Fixed the maximum value for adi,sensor-type for sensors with custom support; * Changed license to GPL-2.0-only as it should be for new bindings; * Changed spi0 to spi in the dts example; * Updated the dts example to the new properties. .../bindings/iio/temperature/adi,ltc2983.yaml | 479 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 480 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml diff --git a/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml new file mode 100644 index 000000000000..b7101a0e84db --- /dev/null +++ b/Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml @@ -0,0 +1,479 @@ +# SPDX-License-Identifier: GPL-2.0-only +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/temperature/adi,ltc2983.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices LTC2983 Multi-sensor Temperature system + +maintainers: + - Nuno Sá + +description: | + Analog Devices LTC2983 Multi-Sensor Digital Temperature Measurement System + https://www.analog.com/media/en/technical-documentation/data-sheets/2983fc.pdf + +properties: + compatible: + enum: + - adi,ltc2983 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + adi,temperature-celcius: + description: + If this property is present, the temperature is reported in Celsius. + type: boolean + + adi,mux-delay-config-us: + description: + The LTC2983 performs 2 or 3 internal conversion cycles per temperature + result. Each conversion cycle is performed with different excitation and + input multiplexer configurations. Prior to each conversion, these + excitation circuits and input switch configurations are changed and an + internal 1ms delay ensures settling prior to the conversion cycle in most + cases. An extra delay can be configured using this property. The value is + rounded to nearest 100us. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - maximum: 255 + + adi,filter-notch-freq: + description: + Set's the default setting of the digital filter. The default is + simultaneous 50/60Hz rejection. + 0 - 50/60Hz rejection + 1 - 60Hz rejection + 2 - 50Hz rejection + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 0 + - maximum: 2 + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +patternProperties: + ".*@([1-9]|1[0-9]|20)$": + type: object + + properties: + reg: + description: | + The channel number. It can be connected to one of the 20 channels of + the device. + minimum: 1 + maximum: 20 + + required: + - reg + + patternProperties: + "^thermocouple@.*": + type: object + description: | + Represents a thermocouple sensor which is connected to one of the device + channels. + + properties: + adi,sensor-type: + description: | + Identifies the type of thermocouple connected to the device. + 1 - Type J Thermocouple + 2 - Type K Thermocouple + 3 - Type E Thermocouple + 4 - Type N Thermocouple + 5 - Type R Thermocouple + 6 - Type S Thermocouple + 7 - Type T Thermocouple + 8 - Type B Thermocouple + 9 - Custom Thermocouple + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 1 + - maximum: 9 + + adi,single-ended: + description: | + Boolean property which set's the thermocouple as single-ended. + type: boolean + + adi,sensor-oc-current-microamp: + description: | + This property set's the pulsed current value applied during + open-circuit detect. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [10, 100, 500, 1000] + + adi,cold-junction-handle: + description: | + Phandle which points to a sensor object responsible for measuring + the thermocouple cold junction temperature. + $ref: "/schemas/types.yaml#/definitions/phandle" + + adi,custom-sensor: + description: | + This is a table, where each entry should be a pair of + voltage(mv)-temperature(K). The entries must be given in nv and uK + so that, the original values must be multiplied by 1000000. For + more details look at table 69 and 70. + allOf: + - $ref: /schemas/types.yaml#/definitions/int64-array + minItems: 6 + maxItems: 128 + + required: + - adi,sensor-type + + "^diode@.*": + type: object + description: | + Represents a diode sensor which is connected to one of the device + channels. + + properties: + adi,sensor-type: + description: Identifies the sensor as a diode. + const: 28 + + adi,single-ended: + description: Boolean property which set's the diode as single-ended. + type: boolean + + adi,three-conversion-cycles: + description: | + Boolean property which set's three conversion cycles removing + parasitic resistance effects between the LTC2983 and the diode. + type: boolean + + adi,average-on: + description: | + Boolean property which enables a running average of the diode + temperature reading. This reduces the noise when the diode is used + as a cold junction temperature element on an isothermal block + where temperatures change slowly. + type: boolean + + adi,excitation-current-microamp: + description: | + This property controls the magnitude of the excitation current + applied to the diode. Depending on the number of conversions + cycles, this property will assume different predefined values on + each cycle. Just set the value of the first cycle (1l). + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [10, 20, 40, 80] + + adi,ideal-factor-value: + description: | + This property sets the diode ideality factor. The real value must + be multiplied by 1000000 to remove the fractional part. For more + information look at table 20 of the datasheet. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + + required: + - adi,sensor-type + + "^rtd@.*": + type: object + description: | + Represents a rtd sensor which is connected to one of the device channels. + + properties: + reg: + minimum: 2 + + adi,sensor-type: + description: | + Identifies the type of RTD connected to the device. + 10 - RTD PT-10 + 11 - RTD PT-50 + 12 - RTD PT-100 + 13 - RTD PT-200 + 14 - RTD PT-500 + 15 - RTD PT-1000 + 16 - RTD PT-1000 (0.00375) + 17 - RTD NI-120 + 18 - RTD Custom + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 10 + - maximum: 18 + + adi,rsense-handle: + description: | + Phandle pointing to a rsense object associated with this RTD. + $ref: "/schemas/types.yaml#/definitions/phandle" + + adi,number-of-wires: + description: | + Identifies the number of wires used by the RTD. Setting this + property to 5 means 4 wires with Kelvin Rsense. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [2, 3, 4, 5] + + adi,rsense-share: + description: | + Boolean property which enables Rsense sharing, where one sense + resistor is used for multiple 2-, 3-, and/or 4-wire RTDs. + type: boolean + + adi,current-rotate: + description: | + Boolean property which enables excitation current rotation to + automatically remove parasitic thermocouple effects. Note that + this property is not allowed for 2- and 3-wire RTDs. + type: boolean + + adi,excitation-current-microamp: + description: | + This property controls the magnitude of the excitation current + applied to the RTD. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [5, 10, 25, 50, 100, 250, 500, 1000] + + adi,rtd-curve: + description: | + This property set the RTD curve used and the corresponding + Callendar-VanDusen constants. Look at table 30 of the datasheet. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 0 + - maximum: 3 + + adi,custom-sensor: + description: | + This is a table, where each entry should be a pair of + resistance(ohm)-temperature(K). The entries added here are in uohm + and uK. For more details values look at table 74 and 75. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint64-array + minItems: 6 + maxItems: 128 + + required: + - adi,sensor-type + - adi,rsense-handle + + dependencies: + adi,current-rotate: [ adi,rsense-share ] + + "^thermistor@.*": + type: object + description: | + Represents a thermistor sensor which is connected to one of the device + channels. + + properties: + adi,sensor-type: + description: | + Identifies the type of thermistor connected to the + device. + 19 - Thermistor 44004/44033 2.252kohm at 25°C + 20 - Thermistor 44005/44030 3kohm at 25°C + 21 - Thermistor 44007/44034 5kohm at 25°C + 22 - Thermistor 44006/44031 10kohm at 25°C + 23 - Thermistor 44008/44032 30kohm at 25°C + 24 - Thermistor YSI 400 2.252kohm at 25°C + 25 - Thermistor Spectrum 1003k 1kohm + 26 - Thermistor Custom Steinhart-Hart + 27 - Custom Thermistor + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - minimum: 19 + - maximum: 27 + + adi,rsense-handle: + description: | + Phandle pointing to a rsense object associated with this + thermistor. + $ref: "/schemas/types.yaml#/definitions/phandle" + + adi,single-ended: + description: | + Boolean property which set's the thermistor as single-ended. + type: boolean + + adi,rsense-share: + description: | + Boolean property which enables Rsense sharing, where one sense + resistor is used for multiple thermistors. Note that this property + is ignored if adi,single-ended is set. + type: boolean + + adi,current-rotate: + description: | + Boolean property which enables excitation current rotation to + automatically remove parasitic thermocouple effects. + type: boolean + + adi,excitation-current-nanoamp: + description: | + This property controls the magnitude of the excitation current + applied to the thermistor. Value 0 set's the sensor in auto-range + mode. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + - enum: [0, 250, 500, 1000, 5000, 10000, 25000, 50000, 100000, + 250000, 500000, 1000000] + + adi,custom-sensor: + description: | + This is a table, where each entry should be a pair of + resistance(ohm)-temperature(K). The entries added here are in uohm + and uK only for custom thermistors. For more details look at table + 78 and 79. Steinhart-Hart coefficients are also supported and can + be programmed into the device memory using this property. For + Steinhart sensors, this table has a constant size of 6 entries + (defining the coefficients) and the values are given in the raw + format. Look at table 82 for more information. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint64-array + minItems: 6 + maxItems: 128 + + required: + - adi,sensor-type + - adi,rsense-handle + + dependencies: + adi,current-rotate: [ adi,rsense-share ] + + "^adc@.*": + type: object + description: Represents a channel which is being used as a direct adc. + + properties: + adi,sensor-type: + description: Identifies the sensor as a direct adc. + const: 30 + + adi,single-ended: + description: Boolean property which set's the adc as single-ended. + type: boolean + + required: + - adi,sensor-type + + "^rsense@.*": + type: object + description: | + Represents a rsense which is connected to one of the device channels. + Rsense are used by thermistors and RTD's. + + properties: + reg: + minimum: 2 + + adi,sensor-type: + description: Identifies the sensor as a rsense. + const: 29 + + adi,rsense-val-micro-ohms: + description: | + Sets the value of the sense resistor. Look at table 20 of the + datasheet for information. + allOf: + - $ref: /schemas/types.yaml#/definitions/uint64 + + required: + - adi,sensor-type + - adi, rsense-val + +required: + - compatible + - reg + - interrupts + +examples: + - | + #include + spi { + #address-cells = <1>; + #size-cells = <0>; + + sensor_ltc2983: ltc2983@0 { + compatible = "adi,ltc2983"; + reg = <0>; + + #address-cells = <1>; + #size-cells = <0>; + + adi,temperature-celcius; + interrupts = <20 IRQ_TYPE_EDGE_RISING>; + interrupt-parent = <&gpio>; + + thermocouple@18 { + reg = <18>; + adi,sensor-type = <8>; //Type B + adi,sensor-oc-current-microamp = <10>; + adi,cold-junction-handle = <&diode5>; + }; + + diode5: diode@5 { + reg = <5>; + adi,sensor-type = <28>; + }; + + rsense2: rsense@2 { + reg = <2>; + adi,sensor-type = <29>; + adi,rsense-val-micro-ohms = /bits/ 64 <1200000000>; //1.2Kohms + }; + + rtd@14 { + reg = <14>; + adi,sensor-type = <15>; //PT1000 + /*2-wire, internal gnd, no current rotation*/ + adi,number-of-wires = <2>; + adi,rsense-share; + adi,excitation-current-microamp = <500>; + adi,rsense-handle = <&rsense2>; + }; + + adc@10 { + reg = <10>; + adi,sensor-type = <30>; + adi,single-ended; + }; + + thermistor@12 { + reg = <12>; + adi,sensor-type = <26>; //Steinhart + adi,rsense-handle = <&rsense2>; + adi,custom-sensor = /bits/ 64 <0x00F371EC 0x12345678 + 0x2C0F8733 0x10018C66 0xA0FEACCD + 0x90021D99>; //6 entries + }; + + thermocouple@20 { + reg = <20>; + adi,sensor-type = <9>; //custom thermocouple + adi,single-ended; + adi,custom-sensor = /bits/ 64 + <(-50220000) 0 + (-30200000) 99100000 + (-5300000) 135400000 + 0 273150000 + 40200000 361200000 + 55300000 522100000 + 88300000 720300000 + 132200000 811200000 + 188700000 922500000 + 460400000 1000000000>; //10 pairs + }; + + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index 14a256e785ca..f747a9dc27f5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -9497,6 +9497,7 @@ W: http://ez.analog.com/community/linux-device-drivers L: linux-iio@vger.kernel.org S: Supported F: drivers/iio/temperature/ltc2983.c +F: Documentation/devicetree/bindings/iio/temperature/adi,ltc2983.yaml LTC4261 HARDWARE MONITOR DRIVER M: Guenter Roeck -- 2.23.0