From patchwork Fri Feb 5 00:01:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 12069015 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 7ED84C433E6 for ; Fri, 5 Feb 2021 00:02:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3DCAA64FB5 for ; Fri, 5 Feb 2021 00:02:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231535AbhBEACr (ORCPT ); Thu, 4 Feb 2021 19:02:47 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36698 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231509AbhBEACq (ORCPT ); Thu, 4 Feb 2021 19:02:46 -0500 Received: from mail-lj1-x22a.google.com (mail-lj1-x22a.google.com [IPv6:2a00:1450:4864:20::22a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D4989C061794 for ; Thu, 4 Feb 2021 16:01:25 -0800 (PST) Received: by mail-lj1-x22a.google.com with SMTP id c18so5598219ljd.9 for ; Thu, 04 Feb 2021 16:01:25 -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=Oy4nZ8g1rvn9CReQXZZfkStcbq5+BQilkjEo5UujwYK+G2yUjxRZ7A1YFuludtHC8c URHS86E4K+yhXz6LB9br6+hptD7HW5YdH9AAwsRAGlF+qGZIopEwqEsOg+INypH1UQAR y4l3fJhEqYU0G6jahhkMScRO+gx47is0Yss4qcAa/RU89kKqvrgtys92sJqxcpODlGi6 itCn+H9n/73UGz9ZWuAhvM1AeQuMkV+fLQVneGajZOxnTWnbyArQ4LVUjXCUvvMvZ4dn 9a/+G4AoaNFwfDT4jfqcgZoZ5PLcPJE+kWXZ2toqhheYGst6Z3O+ORo2Hq/dr/ya7oMa P1dg== 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=tRNqG9nEd3MisCdhV3bLoVWIsPiv3CiTDhcIq7fl0HHIp7BqiKAO3Wx2Mn10FXkg6k +xzxjekUa9VMPvgZM0WEEG7B5UFjj91T5gE6otn86VLw2QLhBc2oYvxfc4sQfYiYu4T8 gr0fZQVnYNAz1lmvWGDT7ldZeLvIfYpvxoNos0u1nO5KJ5ifDmjU4hl31R+faGhqypYR +2olGytsMLomJiX6xogsmcXx4rJ8wEDF94Nusu06Q/JTHC74SoBe5M5Elf6KZjOe4fcn rBShEaATEpWFwUt9q6/kYtqnZYFbVSG8Nc18wUX0fOkdXgYYpmWKY8yGAonWNT8rKEmV wTqA== X-Gm-Message-State: AOAM5321/x5hXjOrHnr3nWL77GvUH4IU4MLIYKaeBeciCHxvO6Zbc98o 1M9mDMlhpF8OVnzlLmsf0ERXtw== X-Google-Smtp-Source: ABdhPJyPwpPTD4OqH6po7YsBgmLCh+ckzlKhK5q1GNBnHHPfO2+ErbYuRKIk5Ci19k+YlmvogrBggA== X-Received: by 2002:a2e:90c7:: with SMTP id o7mr1050357ljg.427.1612483284198; Thu, 04 Feb 2021 16:01:24 -0800 (PST) Received: from eriador.lan ([188.162.64.67]) by smtp.gmail.com with ESMTPSA id x11sm799532ljh.69.2021.02.04.16.01.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 04 Feb 2021 16:01:23 -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 v14 1/2] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Date: Fri, 5 Feb 2021 03:01:17 +0300 Message-Id: <20210205000118.493610-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210205000118.493610-1-dmitry.baryshkov@linaro.org> References: <20210205000118.493610-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@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>; + }; + }; + }; +...