From patchwork Thu Feb 4 23:28:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 376488 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=-18.7 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 2446CC433E6 for ; Thu, 4 Feb 2021 23:29:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E0E2A64FB1 for ; Thu, 4 Feb 2021 23:29:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229500AbhBDX3w (ORCPT ); Thu, 4 Feb 2021 18:29:52 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229915AbhBDX3p (ORCPT ); Thu, 4 Feb 2021 18:29:45 -0500 Received: from mail-lj1-x234.google.com (mail-lj1-x234.google.com [IPv6:2a00:1450:4864:20::234]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17AA7C061794 for ; Thu, 4 Feb 2021 15:28:25 -0800 (PST) Received: by mail-lj1-x234.google.com with SMTP id c18so5522516ljd.9 for ; Thu, 04 Feb 2021 15:28:25 -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=sDtJL1PbqVWXnwq2JOyelcfSEkHlszqUyvF72mpd46U=; b=NcUVBJ4QJGRr9ul/MdwBMNOcLVmxW19+bh2uGmxKkMw/Ag7bP6Thigw/pSAo3rvQRP GQIWMNT0ULKp9q8Ub1LeUBDd7Xu/fi2KalCyzP1W7z1OGRi67feE3nclgrneFyzAyb0m luOC15aEC4MDf4w8TNqwPMlGBH01KSM+Uf4sBWhG/qvINMEhhelao2pVNohdMFWntmi4 nuT5cYyIgV75iJwEKFWIcg74+KAIqvEusfDXKLD2XZBg4fa/CFmENtFtBNJltDJpT0rb mGujSD8FjHU9bITlKHTyVBkl7BA5s8/YAx7isBuZzcUILolArfixwnYh+mNK7OyJoiK0 9ZJQ== 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=sDtJL1PbqVWXnwq2JOyelcfSEkHlszqUyvF72mpd46U=; b=kGaexzf234/S4jkk1NxN6/8IZhLmoQFq/+3P+j8hrYNmzZ4s7tM+r6oHoj7xpQSJ8X pou69Xx7/AuoKDXt6Uw/L2vllspFQTvoQ/gPIyhB+fVYAdRy8nYZQNKQSWBS2hf423KX hW+8qeTH+cRUzuQU417YNmCR0r5Gt26DXjyYpY9pC+wXWVjH6VgxUSXFDI+wglwt/SDO 3MdBBG8usGMk7F+20Er9sr+UK3DOoTm3OqobUncflspAAySWPzXYkARF3Vi4uc5bLOhC et5CMMtpOvIhe5aTsNFZX19W6lsp9RDyVaeC0oeduDT5EbZXBQ5wAfRevMoHsnB+9R81 Db9A== X-Gm-Message-State: AOAM5338ZPvnKQn/59lmE1m0wmRzLm8Yc/kDiSRimllrCuGEvGit2ww0 H12yZy1hci9Uy5ovdCU+OH30UA== X-Google-Smtp-Source: ABdhPJz0CU6ca9xTUX3volzphc/VGwKfRyMg8aAMEl1DUWZMh4kRSSS6VjWHRfet0XJHi1uH+UTCHA== X-Received: by 2002:a2e:300d:: with SMTP id w13mr957734ljw.383.1612481303516; Thu, 04 Feb 2021 15:28:23 -0800 (PST) Received: from eriador.lan ([188.162.64.67]) by smtp.gmail.com with ESMTPSA id x20sm769906lfe.256.2021.02.04.15.28.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Feb 2021 15:28:23 -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 v13 1/2] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Date: Fri, 5 Feb 2021 02:28:08 +0300 Message-Id: <20210204232809.474733-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210204232809.474733-1-dmitry.baryshkov@linaro.org> References: <20210204232809.474733-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@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 | 153 ++++++++++++++++++ 1 file changed, 153 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..7cd364430573 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml @@ -0,0 +1,153 @@ +# 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>; + + /* 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>; + }; + }; + }; +...