From patchwork Wed May 20 16:34:06 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Albrieux X-Patchwork-Id: 1294469 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=qf7BxExE; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49Ryyq3gVQz9sTC for ; Thu, 21 May 2020 02:34:59 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726805AbgETQe7 (ORCPT ); Wed, 20 May 2020 12:34:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47580 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726439AbgETQe6 (ORCPT ); Wed, 20 May 2020 12:34:58 -0400 Received: from mail-qt1-x842.google.com (mail-qt1-x842.google.com [IPv6:2607:f8b0:4864:20::842]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4EFC2C061A0E; Wed, 20 May 2020 09:34:58 -0700 (PDT) Received: by mail-qt1-x842.google.com with SMTP id d7so3003315qtn.11; Wed, 20 May 2020 09:34:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=4DcJwL2bU+Q1cyGNmrdNE1LFRPb0Wm0rIUdCoQbv6t8=; b=qf7BxExE0J9oLfvmPOqyphafL+TXfeyhAP1CgcgPqBwFVZx8cJjl+9GrNOOYTaccx9 9zBEsCjMT94/7h+ofxek0485ak8taGeJApSxO9bWCD8aTjIkKZFloHpZyCFiXmCKlQon d09OGbmY1eOvi/Ho9ZCiLx1Rle11XJPO4Wua5ER1hCBt6GRfO2/RSiQ1bLyGRXjOyXfc 3edCaAOT3R+arpPrKmGqKwzTDj8AAf13OFXt/FqntZBON819WsQxec622o4OifICNo51 0JcTe38kzdrnmTVSKmk7EfcVyPiDfpVx06RVtC6leaEV86jADHkGnqcKipBNZbjXDoT+ HmIg== 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; bh=4DcJwL2bU+Q1cyGNmrdNE1LFRPb0Wm0rIUdCoQbv6t8=; b=hpwZNud1zyw7hty6L8IJcYM0CfDdg8oSPHr8XQo83CAKX5Ovian9E1X7fzQhK3cB7a qe6BQ4jKkPYIrWR+qKqUXlvCDiZNzyCn4atyFKmcvDPDfwLSKbRYYbCj1kgLWw22Smww qF0BW4DlA0lYlcO+Sa6OikZ5SacXMjdoqLyOjYfOb0EfiaT7PDJ9zpW6JcRiRS3d4W7i QNxGHkQEhfnNzcNcAx6c46GkkGyEAhB/6ShAp+2OoawRfUu1Xw2bSIzrTXEYZFW1rlXv eELeERKTX9M/T6NSjZsioL0TnC+3v6o/3LuZ+YsjJfFCvFmQeAAA4PyFkz3rt/C2iRB6 GzNQ== X-Gm-Message-State: AOAM532xWQPv0KCgvyKs6mE9UKaPvrWPllR67eVqLAwdcvrQSd9cMhNS bUomwbwNIF35QSMiPcVwEhGAQlfgZ+g8tQ== X-Google-Smtp-Source: ABdhPJwh18cjMohI6agOjoqojb3Df1BhgY/cyVXPTJDLct010vimClSnkMuQ8lFm7BD8IwPfBhy3Kg== X-Received: by 2002:ac8:3693:: with SMTP id a19mr6233689qtc.226.1589992496704; Wed, 20 May 2020 09:34:56 -0700 (PDT) Received: from ict14-OptiPlex-980.kataweb.it ([178.23.248.46]) by smtp.googlemail.com with ESMTPSA id q59sm2803261qtd.73.2020.05.20.09.34.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2020 09:34:55 -0700 (PDT) From: Jonathan Albrieux To: linux-kernel@vger.kernel.org Cc: ~postmarketos/upstreaming@lists.sr.ht, Jonathan Albrieux , Andy Shevchenko , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), Greg Kroah-Hartman , Hartmut Knaack , Jilayne Lovejoy , Jonathan Cameron , Kate Stewart , Lars-Peter Clausen , Linus Walleij , linux-iio@vger.kernel.org (open list:IIO SUBSYSTEM AND DRIVERS), Peter Meerwald-Stadler , Steve Winslow , Thomas Gleixner , Jonathan Cameron , Rob Herring Subject: [PATCH v5 1/4] dt-bindings: iio: magnetometer: ak8975: convert format to yaml, add maintainer Date: Wed, 20 May 2020 18:34:06 +0200 Message-Id: <20200520163417.27805-2-jonathan.albrieux@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200520163417.27805-1-jonathan.albrieux@gmail.com> References: <20200520163417.27805-1-jonathan.albrieux@gmail.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Converts documentation from txt format to yaml. Signed-off-by: Jonathan Albrieux --- .../bindings/iio/magnetometer/ak8975.txt | 30 -------- .../bindings/iio/magnetometer/ak8975.yaml | 71 +++++++++++++++++++ 2 files changed, 71 insertions(+), 30 deletions(-) delete mode 100644 Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt create mode 100644 Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt deleted file mode 100644 index aa67ceb0d4e0..000000000000 --- a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.txt +++ /dev/null @@ -1,30 +0,0 @@ -* AsahiKASEI AK8975 magnetometer sensor - -Required properties: - - - compatible : should be "asahi-kasei,ak8975" - - reg : the I2C address of the magnetometer - -Optional properties: - - - gpios : should be device tree identifier of the magnetometer DRDY pin - - vdd-supply: an optional regulator that needs to be on to provide VDD - - mount-matrix: an optional 3x3 mounting rotation matrix - -Example: - -ak8975@c { - compatible = "asahi-kasei,ak8975"; - reg = <0x0c>; - gpios = <&gpj0 7 0>; - vdd-supply = <&ldo_3v3_gnss>; - mount-matrix = "-0.984807753012208", /* x0 */ - "0", /* y0 */ - "-0.173648177666930", /* z0 */ - "0", /* x1 */ - "-1", /* y1 */ - "0", /* z1 */ - "-0.173648177666930", /* x2 */ - "0", /* y2 */ - "0.984807753012208"; /* z2 */ -}; diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml new file mode 100644 index 000000000000..8bde423a2ffa --- /dev/null +++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/magnetometer/ak8975.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: AsahiKASEI AK8975 magnetometer sensor + +maintainers: + - Jonathan Albrieux + +properties: + compatible: + oneOf: + - const: asahi-kasei,ak8975 + - const: asahi-kasei,ak8963 + - const: asahi-kasei,ak09911 + - const: asahi-kasei,ak09912 + - const: ak8975 + deprecated: true + - const: ak8963 + deprecated: true + - const: ak09911 + deprecated: true + - const: ak09912 + deprecated: true + + reg: + maxItems: 1 + description: the I2C address of the magnetometer + + gpios: + description: should be device tree identifier of the magnetometer DRDY pin + + vdd-supply: + maxItems: 1 + description: | + an optional regulator that needs to be on to provide VDD power to + the sensor. + + mount-matrix: + description: an optional 3x3 mounting rotation matrix + +required: + - compatible + - reg + +examples: + - | + #include + i2c@78b7000 { + reg = <0x78b6000 0x600>; + #address-cells = <1>; + #size-cells = <0>; + + magnetometer@c { + compatible = "asahi-kasei,ak8975"; + reg = <0x0c>; + gpios = <&gpj0 7 GPIO_ACTIVE_HIGH>; + vdd-supply = <&ldo_3v3_gnss>; + mount-matrix = "-0.984807753012208", /* x0 */ + "0", /* y0 */ + "-0.173648177666930", /* z0 */ + "0", /* x1 */ + "-1", /* y1 */ + "0", /* z1 */ + "-0.173648177666930", /* x2 */ + "0", /* y2 */ + "0.984807753012208"; /* z2 */ + }; + }; From patchwork Wed May 20 16:34:07 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Albrieux X-Patchwork-Id: 1294470 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; 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Wed, 20 May 2020 09:35:02 -0700 (PDT) Received: from ict14-OptiPlex-980.kataweb.it ([178.23.248.46]) by smtp.googlemail.com with ESMTPSA id q59sm2803261qtd.73.2020.05.20.09.34.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 20 May 2020 09:35:01 -0700 (PDT) From: Jonathan Albrieux To: linux-kernel@vger.kernel.org Cc: ~postmarketos/upstreaming@lists.sr.ht, Jonathan Albrieux , Andy Shevchenko , devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS), Greg Kroah-Hartman , Hartmut Knaack , Jilayne Lovejoy , Jonathan Cameron , Kate Stewart , Lars-Peter Clausen , Linus Walleij , linux-iio@vger.kernel.org (open list:IIO SUBSYSTEM AND DRIVERS), Peter Meerwald-Stadler , Steve Winslow , Thomas Gleixner , Jonathan Cameron , Rob Herring Subject: [PATCH v5 2/4] dt-bindings: iio: magnetometer: ak8975: add gpio reset support Date: Wed, 20 May 2020 18:34:07 +0200 Message-Id: <20200520163417.27805-3-jonathan.albrieux@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200520163417.27805-1-jonathan.albrieux@gmail.com> References: <20200520163417.27805-1-jonathan.albrieux@gmail.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add reset-gpio support. Without reset's deassertion during ak8975_power_on(), driver's probe fails on ak8975_who_i_am() while checking for device identity for AK09911 chip. AK09911 has an active low reset gpio to handle register's reset. AK09911 datasheet says that, if not used, reset pin should be connected to VID. This patch emulates this situation. Signed-off-by: Jonathan Albrieux --- .../devicetree/bindings/iio/magnetometer/ak8975.yaml | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml index 8bde423a2ffa..aba9ced7b6da 100644 --- a/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml +++ b/Documentation/devicetree/bindings/iio/magnetometer/ak8975.yaml @@ -41,6 +41,11 @@ properties: mount-matrix: description: an optional 3x3 mounting rotation matrix + reset-gpio: + description: | + an optional pin needed for AK09911 to set the reset state. This should + be usually active low + required: - compatible - reg @@ -58,6 +63,7 @@ examples: reg = <0x0c>; gpios = <&gpj0 7 GPIO_ACTIVE_HIGH>; vdd-supply = <&ldo_3v3_gnss>; + reset-gpio = <&msmgpio 111 GPIO_ACTIVE_LOW>; mount-matrix = "-0.984807753012208", /* x0 */ "0", /* y0 */ "-0.173648177666930", /* z0 */