From patchwork Mon Sep 14 15:48:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 11774411 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D23B81580 for ; Mon, 14 Sep 2020 15:58:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id AD65120756 for ; Mon, 14 Sep 2020 15:58:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="VcT8v9jI" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726198AbgINP6M (ORCPT ); Mon, 14 Sep 2020 11:58:12 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49972 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726533AbgINPsY (ORCPT ); Mon, 14 Sep 2020 11:48:24 -0400 Received: from mail-lj1-x243.google.com (mail-lj1-x243.google.com [IPv6:2a00:1450:4864:20::243]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0336CC061352 for ; Mon, 14 Sep 2020 08:48:21 -0700 (PDT) Received: by mail-lj1-x243.google.com with SMTP id b19so61929lji.11 for ; Mon, 14 Sep 2020 08:48:20 -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=paLqFLcsx0fUOLnJOcRz6bMeBzGi+tTtO3JWy1A0IIs=; b=VcT8v9jIZiDawP/g/zX4s4gw1bpIazhAtE5+9dzKzIks+U1ep96wEDg+g/brwuQE5g /md7zQr9ygLunuSSDqGVRAQgz5G8wiNVRJYAZq6nVs2C0RX3qihR/vaYaTHsQ6q8YHTj 0sgaQZo5X2okmkS+gZGYBfmsI8bqBGzuX+ypKlA6dXWh38xzv+lACbYlREldrvvfrER8 p2QLrTCAtz+AoXvwYkjMUOi+Kq0TSSV26N26tMKrJZ9kCJkTK7sfgdXj6DHLX9pzhCL2 Ny46D18mvMV9uy0rtKOzdqTeZZgeK31aETdyCSSzrdxk8yQaG4qbGX8v1YBsyhz4ZlMo MLzQ== 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=paLqFLcsx0fUOLnJOcRz6bMeBzGi+tTtO3JWy1A0IIs=; b=shriKH2xCrlb/Equv9suE6X4dXftwedt27k78S3sjxgzmsTFtSce2nfeIk9OSuh7+l 2GLvepa4mjsWpxsxlRSEWg8TvkbUKTSH9bYPOXI2FBKo/5ElLZa030Sp6hsQLi3woLMg nB/OgDqNjJrm/yZqoVO36IrndIsmy9IjvCN+BB7y0gIQvlslUwy7QNDeS53jJfJy4qD8 r3bQyfZz2Ovp6h+wEvjxgUgJWWVQHsGRfFIfS1IzKzduhisjN56+NSeaSS5Fx6k2+iD5 CK/jmWVz+tK4VmfIRpr7qYJs01/dKm6ouwccgt4t26bEk3u19dDiVNGDmnnYryWstKFj oASQ== X-Gm-Message-State: AOAM530bXWgbu7pUwJNRi72xpDmeI541MV2N9JMqnNxm3aX+qZCoBpsz 5E9aoyneAO1YpQyAZY4XTbaj1g== X-Google-Smtp-Source: ABdhPJyGyNYo2TRHsL5N90da0DMHD7jSXa1aML0vVbwOaXWmZLNwUR1S4PvdAMgtAAheA65Wr34mzw== X-Received: by 2002:a2e:a28b:: with SMTP id k11mr5517555lja.405.1600098499376; Mon, 14 Sep 2020 08:48:19 -0700 (PDT) Received: from eriador.lan ([188.162.64.187]) by smtp.gmail.com with ESMTPSA id f19sm3834650lfs.85.2020.09.14.08.48.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 14 Sep 2020 08:48:18 -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 , Jonathan Cameron Subject: [PATCH v5 1/9] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Date: Mon, 14 Sep 2020 18:48:01 +0300 Message-Id: <20200914154809.192174-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200914154809.192174-1-dmitry.baryshkov@linaro.org> References: <20200914154809.192174-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org 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: Jonathan Cameron --- .../bindings/thermal/qcom-spmi-adc-tm5.yaml | 151 ++++++++++++++++++ 1 file changed, 151 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..432a65839b89 --- /dev/null +++ b/Documentation/devicetree/bindings/thermal/qcom-spmi-adc-tm5.yaml @@ -0,0 +1,151 @@ +# 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: + $ref: /schemas/types.yaml#/definitions/uint32 + description: This parameter is used to decrease ADC sampling rate. + Quicker measurements can be made by reducing decimation ratio. + enum: + - 250 + - 420 + - 840 + default: 840 + +patternProperties: + "^([-a-z0-9]*)@[0-9]+$": + type: object + description: + Represent one thermal sensor. + + properties: + reg: + description: Specify the sensor channel. + maxItems: 1 + + io-channels: + description: + From common IIO binding. Used to pipe PMIC ADC channel to thermal monitor + + qcom,adc-channel: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Corresponding ADC channel ID. + + 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: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Time between AMUX getting configured and the ADC starting conversion. + + 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. See qcom,spi-vadc specification for the list + of possible values. + minItems: 2 + maxItems: 2 + + required: + - reg + - qcom,adc-channel + + 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,adc-channel = ; + qcom,ratiometric; + qcom,hw-settle-time = <200>; + }; + }; + }; +...