From patchwork Fri Oct 9 15:44:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 286808 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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 C6FFFC4363A for ; Fri, 9 Oct 2020 15:45:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9385E222BA for ; Fri, 9 Oct 2020 15:45:12 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="s6APqbZE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389365AbgJIPpL (ORCPT ); Fri, 9 Oct 2020 11:45:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36886 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389313AbgJIPpL (ORCPT ); Fri, 9 Oct 2020 11:45:11 -0400 Received: from mail-lj1-x244.google.com (mail-lj1-x244.google.com [IPv6:2a00:1450:4864:20::244]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6647BC0613D5 for ; Fri, 9 Oct 2020 08:45:09 -0700 (PDT) Received: by mail-lj1-x244.google.com with SMTP id c21so10034817ljn.13 for ; Fri, 09 Oct 2020 08:45:09 -0700 (PDT) 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=F7ROo5jyveUFbJ4E1aiSSUyCQWf3HCYhf0rLelMu0mA=; b=s6APqbZEnTICO9pYVi+tm3fAbGcyU7kTtihIho5mjQ+1TPVRCJUjPpIIXy2K5OWSYR SxInT++cmyYAdgkTGyBHO6vPAuRzJBO+FaM1lrMrtnquWmjvnJzvhEQAXpRwVRfkuQnG ZdHAFEYRW3kc/S0KlzVXBHc8T/MXIcXdXe8cpz17rDM0vBWmy2gAaBUo1kxuBu9YtIKA QxXsnd70WIoS0Pf8JHaeU0Qal70XxFVEtNxtwKOIVvNJxI20tuf9jQXvIvjHYjEhCqto dHj1n3rDKfT1fAwlD2p4T29H3XDSeQfuofSGpItkLPCbf4SF2+oYAB7toCK10KxVGynP zKeQ== 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=F7ROo5jyveUFbJ4E1aiSSUyCQWf3HCYhf0rLelMu0mA=; b=UKTdHlN92+gnOj5f1tiuUEINyYpXibmeMFAd50Oo26QpHoVsA+FLPYdN0c/+HHzxDE xTt5qwrTWstUGgMA7506FlGtI4Ni1Ah0RqerXK0QBXtI6m+RwMGyCzB3SQK2Ynrp6eJO JVJ97GCg4RAy8vCp5dnH991AwWomHWvYkyJbdEZyVoNsluuSOevCWn3ObWF1aRyGpqE1 pzsR2bkwsGmJQjWEhV0cV+PFSukxwxHzH0GxrxspH8R2XC3E+azQ2YqLCdoyk+kBE/ES MZK/3jmrkkDbMlHWcQyXWl7uMcmUaybC8MNXdv8AFgw06vNh8bVz3hyET6SEV8Hii6ih i3OA== X-Gm-Message-State: AOAM530PLtCkKp7EatEL5WHsH8L9tGhxlvBFN78EEs8nPSAr64MIMtsR 4VfMt909mO3F4a0q60bDludY9g== X-Google-Smtp-Source: ABdhPJxLhv4L3hFWN1w1jP2YlFIQpN/LoyBF5xhISu8ztJXBb0xvI4cOOlRNWC9Lemaw/zo/IpRm8A== X-Received: by 2002:a2e:7a09:: with SMTP id v9mr5311276ljc.82.1602258307129; Fri, 09 Oct 2020 08:45:07 -0700 (PDT) Received: from eriador.lan ([188.162.65.231]) by smtp.gmail.com with ESMTPSA id r4sm1505597lfc.162.2020.10.09.08.45.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 09 Oct 2020 08:45:06 -0700 (PDT) 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 v8 01/11] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Date: Fri, 9 Oct 2020 18:44:49 +0300 Message-Id: <20201009154459.106189-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201009154459.106189-1-dmitry.baryshkov@linaro.org> References: <20201009154459.106189-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@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>; + }; + }; + }; +...