From patchwork Thu Aug 6 14:11:46 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 6959731 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id AE5989F38B for ; Thu, 6 Aug 2015 14:24:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CCBF320274 for ; Thu, 6 Aug 2015 14:24:01 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0313E20680 for ; Thu, 6 Aug 2015 14:24:01 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZNM3S-0005wo-6Z; Thu, 06 Aug 2015 14:21:58 +0000 Received: from mail-wi0-x235.google.com ([2a00:1450:400c:c05::235]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZNM0x-0002s0-T3 for linux-arm-kernel@lists.infradead.org; Thu, 06 Aug 2015 14:19:25 +0000 Received: by wicgj17 with SMTP id gj17so24660966wic.1 for ; Thu, 06 Aug 2015 07:19:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=BoGPGHLLv/kUY+A+J4yCoT4RTSLVpdEKPZBwaIWiHKE=; b=NPsDcj5nyo3bywGJE2nIgyMPRt4Odq0CEhy4zl87k5hByjH+WG/gQ4BQq15xiYvUFz ALu9MiNmLftPkeV3jXkDU9Uko1Wgsq+nMtoR2/N2iPChZDcEvtDRmDER3SP4d4ge7RMH rdHge3eL5HddXtF7NSKFgid0es9+Z93ePK9mbJL/u2TnVdoOoraXGW0lzHyoG0+Oc1aY JYNkxCzi0mCUE3FVNLTJZiQJxS7Y9GjIQVAFmiUb4FEKVeuSkxhwGmw0QJFcc9q5nZxX +fobghDgdAsBOS7gLwUnUGfnmmh1SxR4XwQ/zOX4LB+U6Kk8/D2ManHIX2rvvmA6uGq/ 78YQ== X-Received: by 10.194.205.37 with SMTP id ld5mr4223555wjc.14.1438870741830; Thu, 06 Aug 2015 07:19:01 -0700 (PDT) Received: from cizrna.lan ([109.72.12.154]) by smtp.gmail.com with ESMTPSA id z5sm9727282wjr.42.2015.08.06.07.19.00 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 06 Aug 2015 07:19:01 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v3 09/18] i2c: core: Probe i2c adapters and devices on demand Date: Thu, 6 Aug 2015 16:11:46 +0200 Message-Id: <1438870315-18689-10-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1438870315-18689-1-git-send-email-tomeu.vizoso@collabora.com> References: <1438870315-18689-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150806_071924_231591_D81A11F4 X-CRM114-Status: GOOD ( 11.85 ) X-Spam-Score: -2.4 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tomeu Vizoso , devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Rob Herring , Javier Martinez Canillas , Mark Brown , Thierry Reding , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When looking up an i2c adapter or device through its OF node, probe it if it hasn't already. The goal is to reduce deferred probes to a minimum, as it makes it very cumbersome to find out why a device failed to probe, and can introduce very big delays in when a critical device is probed. Signed-off-by: Tomeu Vizoso --- Changes in v3: None Changes in v2: None drivers/i2c/i2c-core.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index c83e4d13cfc5..9c507b558fa2 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -40,6 +40,7 @@ #include #include #include +#include #include #include #include @@ -1342,6 +1343,8 @@ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) struct device *dev; struct i2c_client *client; + of_platform_probe(node); + dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); if (!dev) return NULL; @@ -1360,6 +1363,8 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) struct device *dev; struct i2c_adapter *adapter; + of_platform_probe(node); + dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); if (!dev) return NULL;