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[71.34.69.82]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e18f77d235sm2268445a91.22.2024.10.02.17.02.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 02 Oct 2024 17:02:44 -0700 (PDT) Date: Wed, 2 Oct 2024 17:02:42 -0700 From: Drew Fustini To: Linus Walleij Cc: Drew Fustini , Guo Ren , Fu Wei , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Paul Walmsley , Palmer Dabbelt , Albert Ou , Emil Renner Berthing , Thomas Bonnefille , linux-riscv@lists.infradead.org, linux-gpio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3 0/8] pinctrl: Add T-Head TH1520 SoC pin controllers Message-ID: References: <20240930-th1520-pinctrl-v3-0-32cea2bdbecb@tenstorrent.com> Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Wed, Oct 02, 2024 at 10:46:41PM +0200, Linus Walleij wrote: > On Wed, Oct 2, 2024 at 8:35 PM Drew Fustini wrote: > > > > Then I merged that into my "devel" branch for v6.13. > > > > Thanks for taking this. Will that also end up in linux-next eventually? > > Yes next -next. > > > I'm working on a TH1520 Ethernet driver which depends on the pinctrl > > driver. Andrew Lunn replied to me that all the dependencies need to be > > in linux-next [1]. > > Well compile-time dependencies for sure, run-time dependencies > we are usually a bit lax with as long as we know they will > get there eventually. > > > > I think I'll make a stab at using guarded mutexes etc and see what > > > you think about it! > > > > Do you mean using scoped_guard() for thp->mutex in > > th1520_pinctrl_dt_node_to_map()? > > For all mutex and spinlocks in the driver. The thp->lock spinlock is already using scoped_guard() everywhere. I will post a patch that adds guard() for the thp->mutex like this: diff --git a/drivers/pinctrl/pinctrl-th1520.c b/drivers/pinctrl/pinctrl-th1520.c index 1bb78b212fd5..b7c2d998e9e7 100644 --- a/drivers/pinctrl/pinctrl-th1520.c +++ b/drivers/pinctrl/pinctrl-th1520.c @@ -444,8 +444,8 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, return -ENOMEM; nmaps = 0; - mutex_lock(&thp->mutex); - for_each_available_child_of_node(np, child) { + guard(mutex)(&thp->mutex); + for_each_available_child_of_node_scoped(np, child) { unsigned int rollback = nmaps; enum th1520_muxtype muxtype; struct property *prop; @@ -530,7 +530,6 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, *maps = map; *num_maps = nmaps; - mutex_unlock(&thp->mutex); return 0; free_configs: @@ -538,7 +537,6 @@ static int th1520_pinctrl_dt_node_to_map(struct pinctrl_dev *pctldev, put_child: of_node_put(child); th1520_pinctrl_dt_free_map(pctldev, map, nmaps); - mutex_unlock(&thp->mutex); return ret; } -- Thanks, Drew 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 645CECF8547 for ; Thu, 3 Oct 2024 00:02:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=Q1L+zHlY0nq+rMLc7i52MS/UDDufhTSxmSmdSeS1Ii8=; b=iRTL6Z4IDt9FAT e8PF99pxKIeuJapDId5BaZiKlhMi+OJPjEjoXDqAL3p4Zm2hoM5x28ZEd8g8HnbPcLG2f2X1Xb9hB Zc8n5pzL8SdZtpI1A1U9SELIUZNY1XjR6oEB+WFDwqYxOYhxXfuPJtjcGhDZpPgDyC/J6TiRtK05/ dZ7oaO+N5oots5F/W4/o3T9ID9g3eEPCOti8YOgf54CyeJyxWMUG2IJc4w+jOmWMpKxt6uQh0J7T+ g6QQj+JFvlQjRXrnthAorPsnPxi/kie4EWN3Cu2YKHJtk2PBDeh3/t6V+dc2DMfZ6pxJwmk0qQqyJ p8y6NAdd+5Mzk4eywcNA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sw9Iv-00000007pUz-2INU; Thu, 03 Oct 2024 00:02:49 +0000 Received: from mail-pl1-x629.google.com ([2607:f8b0:4864:20::629]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1sw9Is-00000007pTi-0FnN for linux-riscv@lists.infradead.org; Thu, 03 Oct 2024 00:02:47 +0000 Received: by mail-pl1-x629.google.com with SMTP id d9443c01a7336-20b58f2e1f4so1957645ad.2 for ; Wed, 02 Oct 2024 17:02:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tenstorrent.com; s=google; t=1727913765; x=1728518565; darn=lists.infradead.org; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date:from:to :cc:subject:date:message-id:reply-to; bh=gUM6/c8POo3ZmmnwIz3ZYq2oPmzsWDU4VKk2RR1uleQ=; b=ITBMSMEq/mgDdxxjmoV9WPJRUWFOHwBR+p01fxPp/46h5TH3L1MB2bf4i6rs5zWmsZ 2UEGlo28tMaS6S3qp3BzyvblYEq960lYMc+WTPvFPYdlKouaXs0I/3OQIUHEbaqDOdjf mgywq7e0y2EFP6YZX0eULPJeEFCyT/KQEJVbjsvO794mKKfRPpWPYHjRNdn/dfivFcxk pLkVllVntVyr0x8HYlP8JVd3pB8MtD6SrTPkgm23/4CcDR3TeRYhM+6lSN4ljQhM2fVb jvrycKctK06qntkH1jYTzKddYj/QPtudCp36n0w/x5VD/Amg4kWNLVHzWsDaYNHyADhG X0lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727913765; x=1728518565; h=in-reply-to:content-transfer-encoding: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=gUM6/c8POo3ZmmnwIz3ZYq2oPmzsWDU4VKk2RR1uleQ=; b=oHDdKy7vo8Urc8L97kRyod/UFB430d6xQhWYy9prDTqZQ/yQERaASEPjc4pzepZdyA DqbubIZXmYJ+UiqG0PZI0JY9sGKmxNtoFghLHSFvtaWOW9u+bbIEVTfKZu7a6ZUe+4Po sWyndFDytE2kAmjrXVCEfx6nVa3cehydAvYEwE9QIYBYL519Oq09+02yGJkRsC9D940+ +HPbLbl6925GUnLXDTSIVPmKnVaIJxMvAskrHvI46hNy9sQbBR77uO0oUKQ9Q/4ZGkVv m17K+YQsHiC2yTF1MZnG2GfM5IZqVFZxou09Z8Yhr+5c1rjbYQoOFEkkksuibP0c0fFW x2ng== X-Forwarded-Encrypted: i=1; AJvYcCX5fedp0EMmeN5iLhjSqO1AG1uee1lZ/079leHujBF4AOtwtDai1z7tF4b3RxRuEuV5VnTGpesayxTRIg==@lists.infradead.org X-Gm-Message-State: AOJu0YycY/svd3634uCnWm26IBDykfyNiQ4cGRhFY0PPTyn94HBC6Wnh rkyzwucYTZeO2aH8xXEOc2lfeogiMzp32bOk9rhdQHFDJ0jw2A9zF4Dlhl+Ff0k= X-Google-Smtp-Source: AGHT+IHmCdNn6jRxhW0IWH2DWwz1m/iZxhIonrOaAjcX0AB8vRdu8ZUUUlS4NfAWFjw2P+QvaTjpcQ== X-Received: by 2002:a17:902:f685:b0:208:d856:dbb7 with SMTP id d9443c01a7336-20bc5a5d0damr71931745ad.39.1727913764912; Wed, 02 Oct 2024 17:02:44 -0700 (PDT) Received: from x1 (71-34-69-82.ptld.qwest.net. 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