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 X-Spam-Level: X-Spam-Status: No, score=-3.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D4116C31E40 for ; Tue, 6 Aug 2019 13:04:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A8DDC20C01 for ; Tue, 6 Aug 2019 13:04:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="hJ09HMiy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731431AbfHFNEs (ORCPT ); Tue, 6 Aug 2019 09:04:48 -0400 Received: from mail-lj1-f194.google.com ([209.85.208.194]:41322 "EHLO mail-lj1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726092AbfHFNEs (ORCPT ); Tue, 6 Aug 2019 09:04:48 -0400 Received: by mail-lj1-f194.google.com with SMTP id d24so82166596ljg.8 for ; Tue, 06 Aug 2019 06:04:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=VSP7ertTaGliFxnzQE6UZ8P7kDdh7xHsv7HJAdC4s/g=; b=hJ09HMiyWFDdzVON9hsczrI8lwxd4BGK2p5ZiM1qSz3r2CZVJt698v4TipIfzs08xp FRm/+H/QMELlqo3dO2vQM+p2Hctehj6MpcypAFq7HAg8Igvdx5GmcdiFrUPMYboPigjG bLwFEk1sKaAvqez/V1NxBL1JD9KDxGbupOQqk2UjBlKsGcg0EbDtzIIF8l6pNIbOqCds iUJsDD57mZEb/MmCL6F9Go8fYRk+NiY8xsUkpULQXTMdis/OO7s5Kayr5Km80/pYxEVW I4HrSaKNu1id/oWV9R0gLzaRt4zhprNKaWIFA7WSEAZu7dCHiqJdR5cTW5Mq7ZKPn+RO yKRw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=VSP7ertTaGliFxnzQE6UZ8P7kDdh7xHsv7HJAdC4s/g=; b=R6KbClXayWkZ0HpCJiRZvf7xtvTDMN+5img4velQmb1t4J0h9IAMjPDXaoGtX+H9wy Pyx73UWQR6L/v5hiiySMli5s1NR18eRF18th9WctOJtyJ7emRR2Dzcuzz0NKeEI5wMx3 Na75pbVfmoQkfv2nwip0MrNmV7hD+03+qtNKCddz8NJizpcjHB60PCR65ah1NRXv4su1 WwbEc2wbIIkAzof+iqJxtmha6spIFWIp34p3BZr3de0ZYQj8qWuB/SkwmWfsJmXEyJY/ FOIjiXMcbqntEebrLntiksiyHU72lT9byiinoOUfSY3ZPrwBWd/7m9iJMOzBczt4AmnO HFiA== X-Gm-Message-State: APjAAAWiZa5Six7WbyP1q5zJ+nidwfRSg1uSbKmdgFOO0cTYRmBdL6vZ rftSqzitsGjS3WXjYff9RAmJ7OVDKjyKV5ft66MMmQ== X-Google-Smtp-Source: APXvYqz7NqTp54GWvw+RS4Sq+oN/CGJLpirazWc5j1osUTFej5ZizfAcNEnwUaljPcS/O8sXI0XIjz6KzmkCh13Z0NY= X-Received: by 2002:a2e:9048:: with SMTP id n8mr1761330ljg.37.1565096686312; Tue, 06 Aug 2019 06:04:46 -0700 (PDT) MIME-Version: 1.0 References: <20190803133436.15016-1-rfried.dev@gmail.com> In-Reply-To: <20190803133436.15016-1-rfried.dev@gmail.com> From: Linus Walleij Date: Tue, 6 Aug 2019 15:04:34 +0200 Message-ID: Subject: Re: [PATCH] gpiolib: Take MUX usage into account To: Ramon Fried Cc: Bartosz Golaszewski , "open list:GPIO SUBSYSTEM" , "linux-kernel@vger.kernel.org" , Stefan Wahren Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, Aug 3, 2019 at 3:34 PM Ramon Fried wrote: > From: Stefan Wahren > > The user space like gpioinfo only see the GPIO usage but not the > MUX usage (e.g. I2C or SPI usage) of a pin. As a user we want to know which > pin is free/safe to use. So take the MUX usage of strict pinmux controllers > into account to get a more realistic view for ioctl GPIO_GET_LINEINFO_IOCTL. > > Signed-off-by: Stefan Wahren > Tested-By: Ramon Fried > Signed-off-by: Ramon Fried > --- > Sending Stefan's RFC as patch, as I tested it and it seems to work, > additionally, an accompanying fix was made by me to gpiolibd to fix a > display error of the actual result: > https://patchwork.ozlabs.org/patch/1139923/ This is mostly fine, some style nits so I fixed it up when applying. Yours, Linus Walleij