Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp141410imu; Mon, 26 Nov 2018 08:59:24 -0800 (PST) X-Google-Smtp-Source: AFSGD/XCo6xJAwI7za4MmEFBnWDBcQ24f2qo30PLIE6DMBz7IFIWcJ8Oo76om8FfgbjvvgkIPzU3 X-Received: by 2002:a17:902:f44:: with SMTP id 62mr26467550ply.38.1543251563953; Mon, 26 Nov 2018 08:59:23 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1543251563; cv=none; d=google.com; s=arc-20160816; b=aRikepX+JWSrGXwNWaof+cTgtRPj4pmx8QBGmpQ/XpbGrRFl5luBUJYNxbGUxZ1wZY QXegJLnLObyqr+AQAmVjl8orZHjoLZrpwjkudWGxbKOIihZOTQZtULXug/Jf26jyylsn sHmOtoVZJypLdK0YoRAwi57cb0Psj3brjKxqGbCWFP6Bw+/XIH4Gc5hvZrfjgOY+bIko wxG23AEqO/wCt8pE7dFWT7l14x9KgIsDcq8WCqXeEopGoTe/eBNtftQMDd3V+XUnktx+ wDK4uQXg53blhLCwb53FzN9GY9I7m9ohLFGO8H99uxPXuHChxLjHd0ZFyn2Uf86i24vJ XdMw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=gd6OMloChEEzKlObBtnu7qbxCeYP3y69bHs08hrk4Xc=; b=BrcvGXCo4Un5celXUwimJOTgLi5f9ljiqlVY3PcMFpdwh978j1BPomkdpZQPlKoZuV fIBEj9jolGc4Zr6WDRVS8vlGzKLYSVfty5T44RSA/umiWxbQBuJ/sUlPAbaI1mJt0vnf bJMmwR5hjYJgBQhidj/3aMjc9ihk/szT/y2MT7tJdq2n7G3AWeLJWOJVY9ywJ/EI52ea apiAIW52OltZq/kTpnMpGwiiVZQmENOh5ZNstT4Aka+1zopDKhQP5E3OJNPJx/+QcF6E zLRSKPJa72cnMwLldNYRfL1TaIjLaqMwUS6fbbaqrPos3KCRbDcZv4gXg7DAH5y1iNQU q0HA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=cirrus.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id l9si708768pgj.543.2018.11.26.08.58.33; Mon, 26 Nov 2018 08:59:23 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=cirrus.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726500AbeK0DsX (ORCPT + 99 others); Mon, 26 Nov 2018 22:48:23 -0500 Received: from mx0a-001ae601.pphosted.com ([67.231.149.25]:50430 "EHLO mx0b-001ae601.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726203AbeK0DsX (ORCPT ); Mon, 26 Nov 2018 22:48:23 -0500 Received: from pps.filterd (m0077473.ppops.net [127.0.0.1]) by mx0a-001ae601.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id wAQGrP80012732; Mon, 26 Nov 2018 10:53:37 -0600 Authentication-Results: ppops.net; spf=none smtp.mailfrom=ckeepax@opensource.cirrus.com Received: from mail3.cirrus.com ([87.246.76.56]) by mx0a-001ae601.pphosted.com with ESMTP id 2ny4x62s3j-1; Mon, 26 Nov 2018 10:53:37 -0600 Received: from EX17.ad.cirrus.com (ex17.ad.cirrus.com [172.20.9.81]) by mail3.cirrus.com (Postfix) with ESMTP id BA89C611C8AF; Mon, 26 Nov 2018 10:56:25 -0600 (CST) Received: from imbe.wolfsonmicro.main (198.61.95.81) by EX17.ad.cirrus.com (172.20.9.81) with Microsoft SMTP Server id 14.3.408.0; Mon, 26 Nov 2018 16:53:36 +0000 Received: from imbe.wolfsonmicro.main (imbe.wolfsonmicro.main [198.61.95.81]) by imbe.wolfsonmicro.main (8.14.4/8.14.4) with ESMTP id wAQGrZsL004922; Mon, 26 Nov 2018 16:53:35 GMT Date: Mon, 26 Nov 2018 16:53:35 +0000 From: Charles Keepax To: Mark Brown CC: Linus Walleij , Liam Girdwood , Marek Szyprowski , "linux-kernel@vger.kernel.org" , Subject: Re: [PATCH 3/3] gpio: Add reference counting for non-exclusive GPIOs Message-ID: <20181126165335.GP16508@imbe.wolfsonmicro.main> References: <20181122173015.23905-1-ckeepax@opensource.cirrus.com> <20181122173015.23905-3-ckeepax@opensource.cirrus.com> <20181123105729.GM16508@imbe.wolfsonmicro.main> <20181123132522.GE2089@sirena.org.uk> <20181126130001.GN16508@imbe.wolfsonmicro.main> <20181126140927.GD9715@sirena.org.uk> <20181126143028.GO16508@imbe.wolfsonmicro.main> <20181126145428.GF9715@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20181126145428.GF9715@sirena.org.uk> User-Agent: Mutt/1.5.20 (2009-12-10) X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=2 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=614 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1811260150 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 26, 2018 at 02:54:28PM +0000, Mark Brown wrote: > On Mon, Nov 26, 2018 at 02:30:28PM +0000, Charles Keepax wrote: > > > Would there perhaps be milage in looking at just making > > the regulator core request the GPIO, rather than the end > > drivers? Gives us a single request/free point. We don't need > > any special flags in the GPIO layer, as its just a single > > user as far as GPIO is concerned. > > Yes, I did suggest that earlier in the thread :/ Sorry yes it seems I misread what you had written earlier, I will have a quick look see what a patch to do this might look like. Thanks, Charles