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 2AB88C61DA7 for ; Fri, 27 Jan 2023 12:58:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232146AbjA0M6p (ORCPT ); Fri, 27 Jan 2023 07:58:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231281AbjA0M6m (ORCPT ); Fri, 27 Jan 2023 07:58:42 -0500 Received: from mail-yw1-x112d.google.com (mail-yw1-x112d.google.com [IPv6:2607:f8b0:4864:20::112d]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 50EF968109 for ; Fri, 27 Jan 2023 04:58:14 -0800 (PST) Received: by mail-yw1-x112d.google.com with SMTP id 00721157ae682-4c24993965eso65271077b3.12 for ; Fri, 27 Jan 2023 04:58:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=Vh+bKXtdb/z1QCPxI2/PQtGdcBrzsfUgycixwIlm1Is=; b=Rr8xhv/OSS7204WgMEKkwF53NcpYDuZMgCQvnk07CQgUmvxNYUMA1RASA9ajGe2IUm PGUHbdjtv2Rxm0kppk9PehUhB8HOQE84PDOOidRDcJnHYDTgyjf+cpH98vOqAok2zNb1 D+nluFpWnwX6ZTnIy75oPmz0VgkhtWTs/aTq+WlyFKMvwLErBewvb8O2QqnwUH8prP10 7JQKsz37fibUYPXt59nDJnw8tr4saHruJxiDb3vmnk+5PSX5EXsUDydoexGlmMJNNvAY XNZeBoaxWxT+BKQK5fxGD+oeCTp8bNrHV5fqp3nlV4iAU7IzNrh/McMlxTE4p28Ja3Os /SHw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Vh+bKXtdb/z1QCPxI2/PQtGdcBrzsfUgycixwIlm1Is=; b=Fc0G2PE6nAzCAzzziqtvOwa44UK4fDX9KlocaMRWJSucfM8lphKrwoeYt0HMvLeDZa WfrYv02kKV76ds9MIL3Ou7BaZM3En1YwwqdwGGsDXN/TcfHlQ+DIVERlZc9DeI4FbOui Z6/Efp4QLL8bX8bjNnnTYLm4kaIPsFVOd0YQ9ShQetMlGVAkgqSisyuSk+So25hYyTfB RFwvX27U3/W/11d2iPhyeRmFLX17Peqh/rCw3XcBrJ5U3aJi88tl95HAvsPnCSnys5ch nUC6OXcF3CvTg9HhdltbP/sOxGKXiEI0ah8VYbScrQQZxnAfpwCHYdv/Az9mR+X+3F6j 1hbA== X-Gm-Message-State: AO0yUKX7eDF4/yaDlTLjsNBjZuEdy40FbR4w7kQ/3v5uCb74MN8HSvEV fLbX3QL7XpbMd+GUYvmD1kik7UpcIw3lmQtvP7gbbQ== X-Google-Smtp-Source: AK7set/pmEFwy14DSxUIoFhgRvUHxwHId97MCz3n4bGfCrxDLXaTZoxTOHGysbJaigoBiETZhxOz45r0mMfJ1dv4PhI= X-Received: by 2002:a05:690c:706:b0:506:6952:b9c9 with SMTP id bs6-20020a05690c070600b005066952b9c9mr1266249ywb.477.1674824288171; Fri, 27 Jan 2023 04:58:08 -0800 (PST) MIME-Version: 1.0 References: <20230126-gpio-mmio-fix-v1-0-8a20ce0e8275@ncr.com> <20230126-gpio-mmio-fix-v1-1-8a20ce0e8275@ncr.com> In-Reply-To: <20230126-gpio-mmio-fix-v1-1-8a20ce0e8275@ncr.com> From: Linus Walleij Date: Fri, 27 Jan 2023 13:57:57 +0100 Message-ID: Subject: Re: [PATCH 1/3] gpio: dt-bindings: add new property to wd,mbl-gpio bindings To: nl250060@ncr.com Cc: Bartosz Golaszewski , Rob Herring , Krzysztof Kozlowski , linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Niall, thanks for your patch! On Thu, Jan 26, 2023 at 11:18 AM Niall Leonard via B4 Submission Endpoint wrote: > Optional properties: > - no-output: GPIOs are read-only. > + - no-input: GPIOs are write-only. Read is via a shadow register. "Shadow register" is unclear technical lingo. Just write "GPIO output registers are write-only" DT bindings are OS neutral, the fact that Linux and other OS:es need to cache ("shadow") this value is an implementation detail. Yours, Linus Walleij