From patchwork Thu Sep 3 22:18:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 11755393 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 1D144109A for ; Thu, 3 Sep 2020 22:18:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EF28D2098B for ; Thu, 3 Sep 2020 22:18:32 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="malaHd5r" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729270AbgICWSc (ORCPT ); Thu, 3 Sep 2020 18:18:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52016 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728288AbgICWSb (ORCPT ); Thu, 3 Sep 2020 18:18:31 -0400 Received: from mail-pg1-x534.google.com (mail-pg1-x534.google.com [IPv6:2607:f8b0:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F13DEC061245 for ; Thu, 3 Sep 2020 15:18:30 -0700 (PDT) Received: by mail-pg1-x534.google.com with SMTP id 5so3235100pgl.4 for ; Thu, 03 Sep 2020 15:18:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=Roix3RhAEEOO2V01BUd1l2dtuHebq2+iPymfTqDrfKA=; b=malaHd5r4alh1HJyeDyqDu7Mey/38FwBExzCtlODrP1yv0Kp55lsKlc4p00m1kU1wz 06MepI8ARBeA1bjq9yyLsh5N4fIP0/VCGvrCTx/erzWdPrF7UOKJOKJ6LzRstg0tmZjj 85RirG/8z6BAsuLa7c24lw9eWx66QUol7PTr4= 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:mime-version :content-transfer-encoding; bh=Roix3RhAEEOO2V01BUd1l2dtuHebq2+iPymfTqDrfKA=; b=Kcgnk8TXhogR5brmO3VaFNrIW2EuWb0lAurgBs6OLuAQJjiXX9E+Y4tqepnm6nIZLa cBc3XlYWxx9sXotgAjhxgfxLS9vC6GYX1zfvBs0stVYc1b3j64tB0LeTHjgtUCnDO0u/ Jxq93A6KhM6tZIMzRytI6vXtyDvGuFos8DRD9xT+ss8lp1P1mFYRjfGq7WVNh/Tqvbfb FEJX3zRTKjSX4nlEWG8V+9cGxnFLnMQumWuWoA+pDwRkucHFrZetxOVMMwUwJoiZDBZa E/gomKDyjR7QUXVCdygEYhB7/UvQG2xddt8A9p4bliQ8e3TKVxY8vrP8tnC9R8t04XCO PATw== X-Gm-Message-State: AOAM533FvSF3f48mRvsozNyORegyTLURdZA8tBHU7l8TcbydTSH1L4Iw TZqdDtSdgg55gyWH+hnfgnyPkw== X-Google-Smtp-Source: ABdhPJyNpfEDlgl8BoZHuF2puXp9YWnttTtYfUOHnZq7eEOWT2W+CMSH3iaOHUCZ9AjszaCRgypIcg== X-Received: by 2002:a65:614a:: with SMTP id o10mr4697995pgv.411.1599171509795; Thu, 03 Sep 2020 15:18:29 -0700 (PDT) Received: from smtp.gmail.com ([2620:15c:202:1:3e52:82ff:fe6c:83ab]) by smtp.gmail.com with ESMTPSA id p188sm4205391pfb.17.2020.09.03.15.18.28 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 03 Sep 2020 15:18:29 -0700 (PDT) From: Stephen Boyd To: Jonathan Cameron Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, Daniel Campello , Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , devicetree@vger.kernel.org, Douglas Anderson , Gwendal Grignou , Evan Green Subject: [PATCH] dt-bindings: iio: sx9310: Add various settings as DT properties Date: Thu, 3 Sep 2020 15:18:28 -0700 Message-Id: <20200903221828.3657250-1-swboyd@chromium.org> X-Mailer: git-send-email 2.28.0.526.ge36021eeef-goog MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org We need to set various bits in the hardware registers for this device to operate properly depending on how it is installed. Add a handful of DT properties to configure these things. Cc: Daniel Campello Cc: Lars-Peter Clausen Cc: Peter Meerwald-Stadler Cc: Rob Herring Cc: Cc: Douglas Anderson Cc: Gwendal Grignou Cc: Evan Green Signed-off-by: Stephen Boyd --- I haven't written any code to handle these properties yet. I'd rather do that once the binding patch is reviewed. Patch based on iio.git testing branch. .../iio/proximity/semtech,sx9310.yaml | 182 ++++++++++++++++++ 1 file changed, 182 insertions(+) base-commit: 1bebdcb928eba880f3a119bacb8149216206958a diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml index 5739074d3592..e74b81483c14 100644 --- a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml +++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml @@ -40,6 +40,169 @@ properties: "#io-channel-cells": const: 1 + semtech,cs0-ground: + description: Indicates the CS0 sensor is connected to ground. + type: boolean + + semtech,combined-sensors: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 1, 2, 3] + default: 0 + description: + Which sensors are combined. 0 for CS3, 1 for CS0+CS1, 2 for CS1+CS2, + and 3 for all sensors. + + semtech,cs0-gain-factor: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [1, 2, 4, 8] + default: 1 + description: + Gain factor for CS0 (and combined if any) sensor. + + semtech,cs1-gain-factor: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [1, 2, 4, 8] + default: 1 + description: + Gain factor for CS1 sensor. + + semtech,cs2-gain-factor: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [1, 2, 4, 8] + default: 1 + description: + Gain factor for CS2 sensor. + + semtech,resolution: + description: + Capacitance measure resolution. + enum: + - coarsest + - very-coarse + - coarse + - medium-coarse + - medium + - fine + - very-fine + - finest + + semtech,startup-sensor: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 1, 2, 3] + default: 0 + description: + Sensor used for start-up proximity detection. The combined + sensor is represented by 3. + + semtech,proxraw-strength: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 2, 4, 8] + default: 2 + description: + PROXRAW filter strength. A value of 0 represents off, and other values + represent 1-1/N. + + semtech,compensate-common: + description: Any sensor triggers compensation of all channels. + type: boolean + + semtech,avg-pos-strength: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 16, 64, 128, 256, 512, 1024, 4294967295] + default: 16 + description: + Average positive filter strength. A value of 0 represents off and + UINT_MAX (4294967295) represents infinite. Other values + represent 1-1/N. + + semtech,cs0-prox-threshold: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [2, 4, 6, 8, 12, 16, 20, 24, 28, 32, 40, + 48, 56, 64, 72, 80, 88, 96, 112, 128, 144, + 160, 192, 224, 256, 320, 384, 512, 640, + 768, 1024, 1536] + default: 12 + description: + Proximity detection threshold for CS0 (and combined if any) sensor. + + semtech,cs1-prox-threshold: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [2, 4, 6, 8, 12, 16, 20, 24, 28, 32, 40, + 48, 56, 64, 72, 80, 88, 96, 112, 128, 144, + 160, 192, 224, 256, 320, 384, 512, 640, + 768, 1024, 1536] + default: 12 + description: + Proximity detection threshold for CS1 sensor. + + semtech,cs2-prox-threshold: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [2, 4, 6, 8, 12, 16, 20, 24, 28, 32, 40, + 48, 56, 64, 72, 80, 88, 96, 112, 128, 144, + 160, 192, 224, 256, 320, 384, 512, 640, + 768, 1024, 1536] + default: 12 + description: + Proximity detection threshold for CS2 sensor. + + semtech,cs0-body-threshold: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 300, 600, 900, 1200, 1500, 1800, 30000] + default: 1800 + description: + Body detection threshold for CS0 (and combined if any) sensor. + + semtech,cs1-body-threshold: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 300, 600, 900, 1200, 1500, 1800, 30000] + default: 12 + description: + Body detection threshold for CS1 sensor. + + semtech,cs2-body-threshold: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 300, 600, 900, 1200, 1500, 1800, 30000] + default: 12 + description: + Body detection threshold for CS2 sensor. + + semtech,hysteresis: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 6, 12, 25] + default: 0 + description: + The percentage of hysteresis +/- applied to proximity/body samples. + + semtech,close-debounce-samples: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 2, 4, 8] + default: 0 + description: + The number of close samples debounced for proximity/body thresholds. + + semtech,far-debounce-samples: + allOf: + - $ref: /schemas/types.yaml#definitions/uint32 + - enum: [0, 2, 4, 8] + default: 0 + description: + The number of far samples debounced for proximity/body thresholds. + required: - compatible - reg @@ -61,5 +224,24 @@ examples: vdd-supply = <&pp3300_a>; svdd-supply = <&pp1800_prox>; #io-channel-cells = <1>; + semtech,cs0-ground; + semtech,combined-sensors = <0>; + semtech,cs0-gain-factor = <8>; + semtech,cs1-gain-factor = <8>; + semtech,cs2-gain-factor = <8>; + semtech,resolution = "fine"; + semtech,startup-sensor = <1>; + semtech,proxraw-strength = <2>; + semtech,compensate-common; + semtech,avg-pos-strength = <64>; + semtech,cs0-prox-threshold = <96>; + semtech,cs1-prox-threshold = <112>; + semtech,cs2-prox-threshold = <96>; + semtech,cs0-body-threshold = <300>; + semtech,cs1-body-threshold = <300>; + semtech,cs2-body-threshold = <300>; + semtech,hysteresis = <0>; + semtech,close-debounce-samples = <2>; + semtech,far-debounce-samples = <2>; }; };