From patchwork Mon Nov 2 17:49:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 11874739 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 DDF626A2 for ; Mon, 2 Nov 2020 17:50:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B6CB7223C7 for ; Mon, 2 Nov 2020 17:50:01 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="MH/LxPk3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725805AbgKBRuB (ORCPT ); Mon, 2 Nov 2020 12:50:01 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725768AbgKBRuA (ORCPT ); Mon, 2 Nov 2020 12:50:00 -0500 Received: from mail-lf1-x142.google.com (mail-lf1-x142.google.com [IPv6:2a00:1450:4864:20::142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A552DC0617A6 for ; Mon, 2 Nov 2020 09:49:59 -0800 (PST) Received: by mail-lf1-x142.google.com with SMTP id i6so18566656lfd.1 for ; Mon, 02 Nov 2020 09:49:59 -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=F7ROo5jyveUFbJ4E1aiSSUyCQWf3HCYhf0rLelMu0mA=; b=MH/LxPk37S1LFSJij+kPgCMuHciw5T/XVVx3WZUAXt4+htNyFMoqg+g0IKGfrv2lG+ tnwC5d6/82TPl/FNcmyEPUOBlQIRaelURmb48fKxvWnEKpZ7rNbKQ6VgjYZGZSXqI4qZ CFIvKEleNJBcJUd05igJLZcg0Hs5IBvkbgk/bB4N5asHTlxDKQBQ94Ueai/tK6zVue42 DEY/rJwNWry21+8AHdPmm5mAnJAIY+ArGrKXww0F9YGWKHnKnTgzQhPFkvB7neuy6s+X RLcLvfSr0NpXIa0ks87pjwANY7g61Xd2JevyL2re6rjBPSZCNDnv6GJTliy/dHImi8jt 7A2Q== 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=sf6CgEeg+N53YUaAY7C1MMfEXqdNDdSzxv5eaCm9LbfvX7e7KXdwWAYoDhDbrSk2I9 sy6XFvMvaZdbNPN16s1P0tqIp1YI+UmQyV0x6KxcyXUgAEHvGEodDLVqRNfA5z+3M5rT eq0pcAHmfYFnvJMNN5zQiZ+ruvHOymu/dacadsV3sWkAv0CIt5N/zp6Dms70kdmtqNug +L4d3yDG8xjzz9Bz5zCcsL+hH7tru6Nq6VBHLPux/Ydsd1yS69/F4X94gFs3j8dweS2Q KTw3mDrM42nG/61yBlIjQF8UDH5owOM/9HcZpXfx4VwrDHTfa56DLOje6jIVSminUVeA IZfw== X-Gm-Message-State: AOAM532P4Q5hME1luNsUoQkthLKmpMZTh54qceI+rgBGnjmUdEF68FZW M9UpXTvWPz+aZoXtHU7Qu0SiSg== X-Google-Smtp-Source: ABdhPJwNnReJA0335BboHzXCH4ep151IrfdrgXUs5lN0AL+l19GYLmS33Oq4KK+6Gk05SHx/AmHWpg== X-Received: by 2002:ac2:52b8:: with SMTP id r24mr2552160lfm.312.1604339398102; Mon, 02 Nov 2020 09:49:58 -0800 (PST) Received: from eriador.lan ([94.25.229.254]) by smtp.gmail.com with ESMTPSA id r7sm2516163lfc.206.2020.11.02.09.49.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2020 09:49:57 -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 v9 01/15] dt-bindings: thermal: qcom: add adc-thermal monitor bindings Date: Mon, 2 Nov 2020 20:49:36 +0300 Message-Id: <20201102174950.1148498-2-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201102174950.1148498-1-dmitry.baryshkov@linaro.org> References: <20201102174950.1148498-1-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 | 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>; + }; + }; + }; +...