From patchwork Sat May 22 11:29:07 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 445900 Delivered-To: patch@linaro.org Received: by 2002:a02:7a1b:0:0:0:0:0 with SMTP id a27csp1780291jac; Sat, 22 May 2021 04:30:10 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxtvcsM5ba/obhwJllg07ds50436tksfmW2L/Fq/iXme+Y34Zlvl5zghh7NRaG4+hi47scf X-Received: by 2002:a92:d38d:: with SMTP id o13mr3969876ilo.45.1621683009882; Sat, 22 May 2021 04:30:09 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1621683009; cv=none; d=google.com; s=arc-20160816; b=NijqF54UmXSskbnuA2KWi/E3+RwQUg47WhjZB/3crlnc6PSS2HCQ807GBUgy9gNA1i qDWEjHh7WiJT12E3AGrD5JxUinurkHlMLC6eyzSM5bgNP+2N8sJfxKjAhYTwaICt5tTU GwyMGQ0MstzklWtJ1QY+fjvjEzs6k0wtDGE+Lgk7fFLaM4Nx36SdMoV3i6/xlO8lWWHA /Apy7uCxSSzj06fELgqQYdKlDMXfrhCHpQuNXHsPY/uq4huWfzDnfENCR5I54xDMYn3w w6nW+hEzIhjuf7s7AvZ27JXXEG4ya0vs/NTgcqSENQc6egetZ7t4PlBNLqs9vwby60K/ WblQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=YYuwWiL97Wgd+x8KqxgnezUT4HG9qXyGTAEhV15LIDY=; b=sVEnMUednyS/wz0mbnvsp0kS76GVdQV0IYOIUhtDz7hB2uKMT7k4dKxVLhIeDArs2L MwcAy5R+zzK7pe4jlQC6stoZUaubbirg+Tvls84bYn2FvVC9SjIUAJDg7vCUwKw+6F3v c3/j14/eW4zgJAii1BmIBv1C3TVK2qG5SM5Fa5d8/VUXsrw8zWdM4OeVA+XaBL8HpYNg Tp39yqpbwcccBob/CVCtePmB/MB8UrfB3fSWt92CQV8KYPb3Z7eS2pePwDtCNPBjbeft wPrGeqtN8TAMnXfbIsV6oLfwNzZOsZJyWvLksnFhZueHCK1lqRM7WVgUkK+QHGB75Q2P gksQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=rb2VuzZp; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id d5si7922918ioq.28.2021.05.22.04.30.09; Sat, 22 May 2021 04:30:09 -0700 (PDT) Received-SPF: pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=rb2VuzZp; spf=pass (google.com: domain of devicetree-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=devicetree-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230360AbhEVLbd (ORCPT + 7 others); Sat, 22 May 2021 07:31:33 -0400 Received: from mail.kernel.org ([198.145.29.99]:59734 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230238AbhEVLbc (ORCPT ); Sat, 22 May 2021 07:31:32 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 7641E61182; Sat, 22 May 2021 11:30:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1621683008; bh=VjGQuEiapZYkKNw9zeTWvdwTY/b9SyGcoE+nuNs40jA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=rb2VuzZpCCOGVusvoIMkOcguJs6helugHMXo0UUjbLaXL3q617bImfAqTDFoXooQj Ib9ODnJguxGw4HQYEMkHkp9g8XUVenbxLz9x5N0CXUHjBNYQ5IqO3la/nKGcSh4F7j Gkle/Gp2INgBFL7zOrHGIv/1wY60aAPT8wtSpFxpqFdFLVjjnAMW9u/gdFZiW8qyLN lwai+HfS9MLJ3cShfiPQOKGB0tYdrOsdRf61RkvlmOmXwJ3bbzKKSpk2tPuC8hbB3u znmX5zkrIslVahUTfX+Hv1O9uCzVe+wMx4fdm2o5+ZfSu8HuykmIk3r56cWnnvvjPh UMRWPj/Ws1jww== From: Jonathan Cameron To: linux-iio@vger.kernel.org, Rob Herring , Peter Rosin Cc: devicetree@vger.kernel.org, Jonathan Cameron Subject: [PATCH 1/1] dt-bindings: iio: multiplexer: Convert io-channel-mux bindings to DT schema Date: Sat, 22 May 2021 12:29:07 +0100 Message-Id: <20210522112908.1611389-2-jic23@kernel.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210522112908.1611389-1-jic23@kernel.org> References: <20210522112908.1611389-1-jic23@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Jonathan Cameron Straight conversion of the txt file using the mux-consumer.yaml binding now that is available. Dropped address-cells and size-cells because there are not child nodes. Also added mux-control-names as an optional parameter. Signed-off-by: Jonathan Cameron Cc: Peter Rosin Cc: Rob Herring --- .../iio/multiplexer/io-channel-mux.txt | 39 ---------- .../iio/multiplexer/io-channel-mux.yaml | 71 +++++++++++++++++++ MAINTAINERS | 2 +- 3 files changed, 72 insertions(+), 40 deletions(-) -- 2.31.1 diff --git a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt deleted file mode 100644 index d2b3105dba67..000000000000 --- a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt +++ /dev/null @@ -1,39 +0,0 @@ -I/O channel multiplexer bindings - -If a multiplexer is used to select which hardware signal is fed to -e.g. an ADC channel, these bindings describe that situation. - -Required properties: -- compatible : "io-channel-mux" -- io-channels : Channel node of the parent channel that has multiplexed - input. -- io-channel-names : Should be "parent". -- #address-cells = <1>; -- #size-cells = <0>; -- mux-controls : Mux controller node to use for operating the mux -- channels : List of strings, labeling the mux controller states. - -For each non-empty string in the channels property, an io-channel will -be created. The number of this io-channel is the same as the index into -the list of strings in the channels property, and also matches the mux -controller state. The mux controller state is described in -../mux/mux-controller.yaml - -Example: - mux: mux-controller { - compatible = "gpio-mux"; - #mux-control-cells = <0>; - - mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>, - <&pioA 1 GPIO_ACTIVE_HIGH>; - }; - - adc-mux { - compatible = "io-channel-mux"; - io-channels = <&adc 0>; - io-channel-names = "parent"; - - mux-controls = <&mux>; - - channels = "sync", "in", "system-regulator"; - }; diff --git a/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml new file mode 100644 index 000000000000..37382b85f2b8 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml @@ -0,0 +1,71 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/multiplexer/io-channel-mux.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: I/O channel multiplexer bindings + +maintainers: + - Peter Rosin + +description: | + If a multiplexer is used to select which hardware signal is fed to + e.g. an ADC channel, these bindings describe that situation. + + For each non-empty string in the channels property, an io-channel will be + created. The number of this io-channel is the same as the index into the list + of strings in the channels property, and also matches the mux controller + state. The mux controller state is described in + Documentation/device-tree/bindings/mux/mux-controller.yaml + +properties: + + compatible: + const: "io-channel-mux" + + io-channels: + maxItems: 1 + description: Channel node of the parent channel that has multiplexed input. + + io-channel-names: + const: "parent" + + mux-controls: + $ref: "../../mux/mux-consumer.yaml" + mux-control-names: true + + channels: + $ref: /schemas/types.yaml#/definitions/string-array + description: + List of strings, labeling the mux controller states. + +required: + - compatible + - io-channels + - io-channel-names + - mux-controls + - channels + +additionalProperties: false + +examples: + - | + #include + mux: mux-controller { + compatible = "gpio-mux"; + #mux-control-cells = <0>; + + mux-gpios = <&pioA 0 GPIO_ACTIVE_HIGH>, + <&pioA 1 GPIO_ACTIVE_HIGH>; + }; + + adc-mux { + compatible = "io-channel-mux"; + io-channels = <&adc 0>; + io-channel-names = "parent"; + + mux-controls = <&mux>; + channels = "sync", "in", "system-regulator"; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index fc771d2aacef..eba1687688a5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8858,7 +8858,7 @@ IIO MULTIPLEXER M: Peter Rosin L: linux-iio@vger.kernel.org S: Maintained -F: Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.txt +F: Documentation/devicetree/bindings/iio/multiplexer/io-channel-mux.yaml F: drivers/iio/multiplexer/iio-mux.c IIO SCMI BASED DRIVER