From patchwork Sat Jul 29 16:08:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Svyatoslav Ryhel X-Patchwork-Id: 708013 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD6D5C00528 for ; Sat, 29 Jul 2023 16:09:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229587AbjG2QJ3 (ORCPT ); Sat, 29 Jul 2023 12:09:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47184 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229568AbjG2QJ2 (ORCPT ); Sat, 29 Jul 2023 12:09:28 -0400 Received: from mail-lj1-x22e.google.com (mail-lj1-x22e.google.com [IPv6:2a00:1450:4864:20::22e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C20E109; Sat, 29 Jul 2023 09:09:27 -0700 (PDT) Received: by mail-lj1-x22e.google.com with SMTP id 38308e7fff4ca-2b962535808so48949511fa.0; Sat, 29 Jul 2023 09:09:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1690646966; x=1691251766; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=w4vDNLM3XLifOUeIHk+++zlMfUYzj741T6wp3kNlkXU=; b=C82RAcDOZ86/nEtrrAVg5CnBNfTHJhbhbmGCQHJSkURsK+9L1kcEt8gelD9Kt/oxhf jDJxfsZAnsPxVTu014bhVW/MjMd5plfDSUeJHpYFyB0qOhr/uEPYo/XoDPRy3WprjoAW S5CqdZbKVPMbK8+jaB4rPUm9hGSyUoaGymHzG9Fj71mTLDuuK/BBLK+UHNAOgwNh0END nu6OwRrCo1H3+pUnmbUKfIRJl35SR8eOVdbo7FXXQe/Sz1ombO/HrY/YNDO24wPnU5YV 9IEC+eg8/KohF78Fl3Okcb2KHu8wJtEQOM6pE62QQCcxjt2Shs5UhePYzwiH27ue5Vh3 KppQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690646966; x=1691251766; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=w4vDNLM3XLifOUeIHk+++zlMfUYzj741T6wp3kNlkXU=; b=lXsaW736WKUwIwek9O5Zwd+1kLICP3lqOknY/BDyq0qNYoB7EuIgG+z1TR87gg4TWT XnN3hqbfuw1tSvGtNOQuzPlMvbmxC0nMJvCSYZjrsuoFhnC+U7TNUoXmD9i9cS2OoiQ1 KBQ3NXQL91Plx7+SekJPO8onmIUVhtyy3SikzRjXi7dyOQqfWZAg+UuuzSqrHfNHMpDA lYh+U+sVtShtUsCkutAhrM0NAaHdUGCUxpeUPlg6PdVivzJXf0ZSOWaC/TWR4nepgE7/ LVzq8td8rawoBd2NEAnbo4SBy02VBJzD9k+0lyuAC1eD6c4gWu6VRcgj4MeFJ0r6ekGh ljCw== X-Gm-Message-State: ABy/qLZYseMyr2e7V5/EkNo8CbzU6Nup9lDEu/jKrcLeUOWFPBsL9aSO SJNwHs7if4GpQj0jE72VQqo= X-Google-Smtp-Source: APBJJlGG2aIWvCiMAzemnsDORDuTawwpZ9uC4uF+qHYxK7WGdb2vVW8rMvyN/3FpH5m14OdJ0QJ1rQ== X-Received: by 2002:a2e:2c19:0:b0:2b7:3b73:2589 with SMTP id s25-20020a2e2c19000000b002b73b732589mr3547966ljs.32.1690646965507; Sat, 29 Jul 2023 09:09:25 -0700 (PDT) Received: from xeon.. ([188.163.112.48]) by smtp.gmail.com with ESMTPSA id f10-20020a2ea0ca000000b002b6daa3fa2csm1346886ljm.69.2023.07.29.09.09.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 29 Jul 2023 09:09:25 -0700 (PDT) From: Svyatoslav Ryhel To: Andi Shyti , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Wolfram Sang , =?utf-8?b?TWljaGHFgiBNaXJvc8WCYXc=?= , Svyatoslav Ryhel Cc: linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 1/2] dt-bindings: i2c: add binding for i2c-hotplug-gpio Date: Sat, 29 Jul 2023 19:08:56 +0300 Message-Id: <20230729160857.6332-2-clamor95@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230729160857.6332-1-clamor95@gmail.com> References: <20230729160857.6332-1-clamor95@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Document device tree schema which describes hot-pluggable via GPIO i2c bus. Signed-off-by: Svyatoslav Ryhel --- .../bindings/i2c/i2c-hotplug-gpio.yaml | 65 +++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-hotplug-gpio.yaml diff --git a/Documentation/devicetree/bindings/i2c/i2c-hotplug-gpio.yaml b/Documentation/devicetree/bindings/i2c/i2c-hotplug-gpio.yaml new file mode 100644 index 000000000000..21f2b74ca6c1 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-hotplug-gpio.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/i2c/i2c-hotplug-gpio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: GPIO detected hot-plugged I2C bus + +maintainers: + - Michał Mirosław + +description: + Driver for hot-plugged I2C busses, where some devices on a bus + are hot-pluggable and their presence is indicated by GPIO line. + +properties: + compatible: + items: + - const: i2c-hotplug-gpio + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + + interrupts-extended: + minItems: 1 + + detect-gpios: + maxItems: 1 + + i2c-parent: + maxItems: 1 + +required: + - compatible + - '#address-cells' + - '#size-cells' + - interrupts-extended + - detect-gpios + - i2c-parent + +unevaluatedProperties: false + +examples: + - | + /* + * Asus Transformers use I2C hotplug for attachable dock keyboard + */ + #include + #include + + i2c-dock { + compatible = "i2c-hotplug-gpio"; + + #address-cells = <1>; + #size-cells = <0>; + + interrupts-extended = <&gpio 164 IRQ_TYPE_EDGE_BOTH>; + detect-gpios = <&gpio 164 GPIO_ACTIVE_LOW>; + + i2c-parent = <&gen2_i2c>; + }; +...