From patchwork Mon Jun 19 15:37:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Svyatoslav Ryhel X-Patchwork-Id: 694228 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 CBBE9C001B3 for ; Mon, 19 Jun 2023 15:37:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231861AbjFSPhw (ORCPT ); Mon, 19 Jun 2023 11:37:52 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231846AbjFSPhv (ORCPT ); Mon, 19 Jun 2023 11:37:51 -0400 Received: from mail-ed1-x535.google.com (mail-ed1-x535.google.com [IPv6:2a00:1450:4864:20::535]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C33210F; Mon, 19 Jun 2023 08:37:50 -0700 (PDT) Received: by mail-ed1-x535.google.com with SMTP id 4fb4d7f45d1cf-5189f49c315so3706616a12.2; Mon, 19 Jun 2023 08:37:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1687189069; x=1689781069; 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=QzFocbn/K1Pwm2d4+KukbL2F7ZSUqKDeRTgb+LUbEtY57IIQHX0n/B9XW/kZo1ijwt n4dLiiE4n/O6PtOuRML0iOAssxM10EcMYA96OEJmOWNwqIxU9IiC/D1SbEjq1sopxb2g gIhLwiMna0sCZWxeh13lNVjzZxTR+GCrt4aDYbteVYSkxTaYgkBYXCpG7agVFNXxwxzT tJ/D3uH3sIc8O+WzHaYo6XIz24v6SpbSS1fXQs8qo2tjdHOBwJM9DW4FWUUqv0uALgeK //2Ygnq3J73Db04E6aZ611pUFglgMHXmjWjYiH+usb9FchEDx5jRT/JSB/+yqpnkL8GG DuZg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1687189069; x=1689781069; 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=TodT2Cy4bQiWQkofCBD6vuEaBvC0RznCxxfwLTKP0FXV7ihVrLDINpkkNqS12iILow OKHPLBLR9jW9T6YGfVT6o5H3AhoIhM84ctiOxkkQwXbvK4BzHQnehkhik8JBnS40Krtk Hcd5O1PsYbpyx9f0b+my+kW9le8qZ7qmH63IQJI3WS3UQ6RI3AVEmryS+ZyH9ktvW/Ui T1trJlkogoLp3bkuI99oX9wEh+0uvKtP4t+3eQQbfszuUaYqQYnMtnUjqNZfHrbUFT+g 7Ajg6v1O9RyTN4GINgE3Gcn706DhD6eX/NLwKwfkcgv3DdFcI/TFfvnEFjOjLePoSi26 HF/w== X-Gm-Message-State: AC+VfDyGNFQ2FFsdjHqtnzriJl1DwjZWePSwvnsgGxyZHbr4EkfEuQMD Nbt7pHTdUUp40bUsiLb2KSo= X-Google-Smtp-Source: ACHHUZ4wrBloMuOEeOKIk/4e/kD3k1z88TpkVAlWm1hxVQE3q4J9rwoEPTLkqxIyFheLTvQ1Qjy6wg== X-Received: by 2002:a05:6402:755:b0:51a:4842:ecdc with SMTP id p21-20020a056402075500b0051a4842ecdcmr3794828edy.1.1687189068682; Mon, 19 Jun 2023 08:37:48 -0700 (PDT) Received: from xeon.. ([188.163.112.79]) by smtp.gmail.com with ESMTPSA id l8-20020a056402344800b005187a42b44fsm7469043edc.58.2023.06.19.08.37.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jun 2023 08:37:48 -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 v2 1/2] dt-bindings: i2c: add binding for i2c-hotplug-gpio Date: Mon, 19 Jun 2023 18:37:31 +0300 Message-Id: <20230619153732.46258-2-clamor95@gmail.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230619153732.46258-1-clamor95@gmail.com> References: <20230619153732.46258-1-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>; + }; +...