From patchwork Thu Sep 17 12:56:59 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 7206851 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 1AEC0BEEC1 for ; Thu, 17 Sep 2015 13:00:30 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7F66E20834 for ; Thu, 17 Sep 2015 13:00:24 +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 9736420830 for ; Thu, 17 Sep 2015 13:00:23 +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 1ZcYlk-00079B-QT; Thu, 17 Sep 2015 12:58:32 +0000 Received: from mail-wi0-x22d.google.com ([2a00:1450:400c:c05::22d]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZcYlQ-0006mm-29 for linux-arm-kernel@lists.infradead.org; Thu, 17 Sep 2015 12:58:12 +0000 Received: by wicge5 with SMTP id ge5so117621051wic.0 for ; Thu, 17 Sep 2015 05:57:50 -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=QeJWoFS7ycGVNm5tu260RPxlyCZPIyWvYuyD4dw97rU=; b=lzXpHU5hXFi6HzOhiKr2qVvtCouEHEfMAsHWHLis6xY8z8mTYLr2c84ZcQS1AXUc1x NUOhCy1CEdLukHPpEz1LL5I9rzz1gpbV2fF9bRXm+ila5A+h3LdmKcU145O9iT6jGCPs IEuIdVUSwm5EF+jD5jQUeIz1cWxyLDumt/k6S/CXSIJcuuPNS78rdcwLnDbRh1Anywhh UgEFIaPf4eYqZ7hTSVXY+F4ojBxsejdpyQQ7BuIoy2nlFvJQC15wCJTP8tT1GozmV/VB 4xJkmrDPQoLtEEkfI0fcjz5i/sr40M1SD612ta7o0Rmu+Pi0bgLIJ7YduxtLpdB9cKp7 d3tA== X-Received: by 10.194.178.196 with SMTP id da4mr66723156wjc.41.1442494670423; Thu, 17 Sep 2015 05:57:50 -0700 (PDT) Received: from cizrna.lan ([109.72.12.203]) by smtp.gmail.com with ESMTPSA id jr5sm2203032wjc.26.2015.09.17.05.57.47 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 17 Sep 2015 05:57:48 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v5 05/23] gpio: Probe GPIO drivers on demand Date: Thu, 17 Sep 2015 14:56:59 +0200 Message-Id: <1442494637-3674-6-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1442494637-3674-1-git-send-email-tomeu.vizoso@collabora.com> References: <1442494637-3674-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150917_055812_289663_1D7AB208 X-CRM114-Status: GOOD ( 11.99 ) X-Spam-Score: -2.6 (--) 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 , Greg Kroah-Hartman , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Rob Herring , Javier Martinez Canillas , Mark Brown , Thierry Reding , Alan Stern , 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=-4.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED, T_DKIM_INVALID, T_RP_MATCHES_RCVD, 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 a gpiochip through its firmware 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 v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/gpio/gpiolib-of.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index fa6e3c8823d6..9a439dab7a87 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -95,6 +96,8 @@ struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np, return ERR_PTR(ret); } + of_device_probe(gg_data.gpiospec.np); + gpiochip_find(&gg_data, of_gpiochip_find_and_xlate); of_node_put(gg_data.gpiospec.np);