From patchwork Mon Jan 18 14:51:56 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12027461 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 23807C433E0 for ; Mon, 18 Jan 2021 14:53:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DF84D22C7E for ; Mon, 18 Jan 2021 14:53:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405308AbhAROxq (ORCPT ); Mon, 18 Jan 2021 09:53:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2405294AbhAROxd (ORCPT ); Mon, 18 Jan 2021 09:53:33 -0500 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE003C0613CF for ; Mon, 18 Jan 2021 06:52:06 -0800 (PST) Received: by mail-lf1-x12b.google.com with SMTP id v67so24472070lfa.0 for ; Mon, 18 Jan 2021 06:52:06 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=wSPG6layhSC30o3OnM7Qlvms5bw51mBSqqd8MBWO5aM=; b=BVK94L9RBhNjR/ndUTQd239fAM/3EB2t37FLedBe4VA+rqB0xEJV6xFoFL3RxKyn5l oMuc01Xmx/cnrB6aGEVV+RopzRTp3Cxz+w2d/C3aWZ2/bnkfq96/XUDG1uv6DtiH4DW+ JC6GI+FtixLrZXwAIsH/dRxxL2L1gmIuC8mATdzvtCare65PRQCNwZeYLeC7cB34Jrsv QsCaGQ2VikPr3YrBI7RVsZwm1yCK3Id0CaKEo4ScMP+vDuEOoRUkKMuaM2iCsQPQfyru KL7sj55oSQixdt46XrzjxHSF8oLm6bx/heKocoRdG5LPbxzrffFl5IKMhOFX3rT25YI3 m+Nw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=wSPG6layhSC30o3OnM7Qlvms5bw51mBSqqd8MBWO5aM=; b=QEv/FchgTi8k74GcYYcjzdY2iAb4lx4lnnI9RMt7mj+xtlmHbC3fsOdFN+1d93qUdM 5aspsjZCaQ2O9jLM1GWAz70JHAWrtbP21Z7VRcwA+mgJGKQMPCesnyN1Icdb34B0DG5j hjREOUHP6h8lnBkMZpw+nmhLFP1Ff9jsJf/jb0K5lsATwaaUFLjJAPBAS828d5mru5Z8 uBvXL4fti22H7cyPtA7pI3Xl0Ji1BVTQz1VhXMArFTf0F+3juy2OHcjTtHzyle3byLr8 Oa21CvXl9v82ztuVS4efnN64SqzWRKb9FcplFLebAFnUJBuQMis0r6E4xAvVICTK7nH+ 1YvQ== X-Gm-Message-State: AOAM530QkFf1Z8B2R9TMfnbv5WAmxiMbHDSru+MsHbJ8SDDX1qJJKBcK ZDAMUbppWkzhwbcqjt1MGbxFKA== X-Google-Smtp-Source: ABdhPJwSfquSJ7jjgclmLk//cisgpwUC3Xamsd2ZGDo00xObtkFy6X9RTgEHpIBbWH2mN3ndW9LCXA== X-Received: by 2002:a19:8053:: with SMTP id b80mr12468741lfd.74.1610981525354; Mon, 18 Jan 2021 06:52:05 -0800 (PST) Received: from eriador.lumag.spb.ru ([188.162.64.4]) by smtp.gmail.com with ESMTPSA id h13sm1969697lfj.110.2021.01.18.06.52.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 18 Jan 2021 06:52:04 -0800 (PST) From: Dmitry Baryshkov To: Andy Gross , Bjorn Andersson , Rob Herring , Zhang Rui , Daniel Lezcano , Amit Kucheria , Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler Cc: linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, devicetree@vger.kernel.org, linux-iio@vger.kernel.org, Manivannan Sadhasivam , Jishnu Prakash , Rob Herring Subject: [PATCH v11 1/5] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Date: Mon, 18 Jan 2021 17:51:56 +0300 Message-Id: <20210118145200.504951-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210118145200.504951-1-dmitry.baryshkov@linaro.org> References: <20210118145200.504951-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Add bindings for thermal monitor, part of Qualcomm PMIC5 chips. It is a close counterpart of VADC part of those PMICs. Signed-off-by: Dmitry Baryshkov Reviewed-by: Rob Herring --- .../bindings/thermal/qcom-spmi-adc-tm5.yaml | 154 ++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml diff --git a/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml new file mode 100644 index 000000000000..9da2b349030d --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml @@ -0,0 +1,154 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/thermal/qcom-spmi-adc-tm5.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm's SPMI PMIC ADC Thermal Monitoring +maintainers: + - Dmitry Baryshkov + +properties: + compatible: + const: qcom,spmi-adc-tm5 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + "#thermal-sensor-cells": + const: 1 + description: + Number of cells required to uniquely identify the thermal sensors. Since + we have multiple sensors this is set to 1 + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + + qcom,avg-samples: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Number of samples to be used for measurement. + enum: + - 1 + - 2 + - 4 + - 8 + - 16 + default: 1 + + qcom,decimation: + $ref: /schemas/types.yaml#/definitions/uint32 + description: This parameter is used to decrease ADC sampling rate. + Quicker measurements can be made by reducing decimation ratio. + enum: + - 250 + - 420 + - 840 + default: 840 + +patternProperties: + "^([-a-z0-9]*)@[0-7]$": + type: object + description: + Represent one thermal sensor. + + properties: + reg: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Specify the sensor channel. There are 8 channels in PMIC5's ADC TM + minimum: 0 + maximum: 7 + + io-channels: + description: + From common IIO binding. Used to pipe PMIC ADC channel to thermal monitor + + qcom,ratiometric: + $ref: /schemas/types.yaml#/definitions/flag + description: + Channel calibration type. + If this property is specified VADC will use the VDD reference + (1.875V) and GND for channel calibration. If property is not found, + channel will be calibrated with 0V and 1.25V reference channels, + also known as absolute calibration. + + qcom,hw-settle-time-us: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Time between AMUX getting configured and the ADC starting conversion. + enum: [15, 100, 200, 300, 400, 500, 600, 700, 1000, 2000, 4000, 8000, 16000, 32000, 64000, 128000] + + qcom,pre-scaling: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: Used for scaling the channel input signal before the + signal is fed to VADC. The configuration for this node is to know the + pre-determined ratio and use it for post scaling. It is a pair of + integers, denoting the numerator and denominator of the fraction by + which input signal is multiplied. For example, <1 3> indicates the + signal is scaled down to 1/3 of its value before ADC measurement. If + property is not found default value depending on chip will be used. + items: + - const: 1 + - enum: [ 1, 3, 4, 6, 20, 8, 10 ] + + required: + - reg + - io-channels + + additionalProperties: + false + +required: + - compatible + - reg + - interrupts + - "#address-cells" + - "#size-cells" + - "#thermal-sensor-cells" + +additionalProperties: false + +examples: + - | + #include + #include + spmi_bus { + #address-cells = <1>; + #size-cells = <0>; + pm8150b_adc: adc@3100 { + reg = <0x3100>; + compatible = "qcom,spmi-adc5"; + #address-cells = <1>; + #size-cells = <0>; + #io-channel-cells = <1>; + io-channel-ranges; + + /* Other propreties are omitted */ + conn-therm@4f { + reg = ; + qcom,ratiometric; + qcom,hw-settle-time = <200>; + }; + }; + + pm8150b_adc_tm: adc-tm@3500 { + compatible = "qcom,spmi-adc-tm5"; + reg = <0x3500>; + interrupts = <0x2 0x35 0x0 IRQ_TYPE_EDGE_RISING>; + #thermal-sensor-cells = <1>; + #address-cells = <1>; + #size-cells = <0>; + + conn-therm@0 { + reg = <0>; + io-channels = <&pm8150b_adc ADC5_AMUX_THM3_100K_PU>; + qcom,ratiometric; + qcom,hw-settle-time-us = <200>; + }; + }; + }; +...