From mboxrd@z Thu Jan 1 00:00:00 1970 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 5797CC38142 for ; Mon, 23 Jan 2023 21:08:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231848AbjAWVIO (ORCPT ); Mon, 23 Jan 2023 16:08:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232957AbjAWVIM (ORCPT ); Mon, 23 Jan 2023 16:08:12 -0500 Received: from mail-oi1-f182.google.com (mail-oi1-f182.google.com [209.85.167.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2687C38642; Mon, 23 Jan 2023 13:08:04 -0800 (PST) Received: by mail-oi1-f182.google.com with SMTP id o66so11546628oia.6; Mon, 23 Jan 2023 13:08:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=YolR7d3FXuk9xwUZu9ZisHcNVUGeYWG+IpYiZRqQvAw=; b=Snxz3+OGaMXBZs04pNNsCJRhT8NINvaLuuc6ntnVgio6Az8LYgxoK/UtRfsaT2+ptC HDDLs9a9zXE21ZbWd4AZT8HRYL7Y1n7cZ44DxjFUzjNIfeNChM55xSEVSdHINBWc4e1y CMJd4Gkj9h+GdsU/EroJ1JM23LFJ1OPPYHYKhK7a+QYSe3ENpvRVC5izyRAKH5id0vlR AHhpYqxEJqEhKsgqU9jNFeUdrYJm1XcVOpJM/T4KZ37Zgo1r3FFwcDkJ5OumE07Sk7oG sVtZPfCXA4TENdjgZCkne+7Vl11W2vvEgYG2Ljz9hmc/xKhzvIXpec52ZTHJ7UcrnE3n /aXw== X-Gm-Message-State: AFqh2krCQTL9ZnuPXF6edXNHpYHeYV9HfPytlLyYiTip+Vx6BiZ4TvjD IYHp8PG3/Hzd+5CCrtKx1vfaF7VWgA== X-Google-Smtp-Source: AMrXdXuUR1pXTzVST/CMo8A6Ouw7jJMZek+4Yj/7RkNirvkZDdv6JiF3FmO4PVztwBcRF6L7TBp5Zw== X-Received: by 2002:aca:2b06:0:b0:35e:acd7:99cb with SMTP id i6-20020aca2b06000000b0035eacd799cbmr7837220oik.11.1674508083377; Mon, 23 Jan 2023 13:08:03 -0800 (PST) Received: from robh_at_kernel.org (66-90-144-107.dyn.grandenetworks.net. [66.90.144.107]) by smtp.gmail.com with ESMTPSA id l11-20020a9d4c0b000000b00684e55f4541sm108333otf.70.2023.01.23.13.08.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 23 Jan 2023 13:08:02 -0800 (PST) Received: (nullmailer pid 2545442 invoked by uid 1000); Mon, 23 Jan 2023 21:08:02 -0000 Date: Mon, 23 Jan 2023 15:08:02 -0600 From: Rob Herring To: Heiner Kallweit Cc: Krzysztof Kozlowski , Rob Herring , "devicetree@vger.kernel.org" , "linux-i2c@vger.kernel.org" , Peter Rosin , Wolfram Sang Subject: Re: [PATCH v5 1/3] dt-bindings: i2c-gpio: Add properties for dealing with write-only SDA/SCL w/o pullup Message-ID: <167450808169.2545202.12361144276512908643.robh@kernel.org> References: <6f4b54d9-ab6d-a4d4-5142-27c89e03c6d2@gmail.com> <8eb4fb92-ea53-fb4e-4cdd-daed4ad96806@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <8eb4fb92-ea53-fb4e-4cdd-daed4ad96806@gmail.com> Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On Wed, 18 Jan 2023 22:51:58 +0100, Heiner Kallweit wrote: > There are slave devices that understand I2C but have read-only SDA and > SCL. Examples are FD650 7-segment LED controller and its derivatives. > Typical board designs don't even have a pull-up for both pins. > Therefore add properties for not using open-drain. For write-only SCL > we have a property already, add one for write-only SDA. > > Signed-off-by: Heiner Kallweit > --- > v4: > - add no-pullup properties > v5: > - add checking mutually-exclusive properties to schema > --- > .../devicetree/bindings/i2c/i2c-gpio.yaml | 26 +++++++++++++++++++ > 1 file changed, 26 insertions(+) > Reviewed-by: Rob Herring