From patchwork Tue Jul 28 13:19:38 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 6884891 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 02498C05AC for ; Tue, 28 Jul 2015 13:24:15 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 21CB1206CE for ; Tue, 28 Jul 2015 13:24:14 +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 518662072E for ; Tue, 28 Jul 2015 13:24:13 +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 1ZK4ps-0005mi-JM; Tue, 28 Jul 2015 13:22:24 +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 1ZK4oZ-0004vN-C9 for linux-arm-kernel@lists.infradead.org; Tue, 28 Jul 2015 13:21:07 +0000 Received: by wibud3 with SMTP id ud3so159233874wib.0 for ; Tue, 28 Jul 2015 06:20:46 -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=dr9A+4CxIV8Ca3Z7EB9BPfcxCoeY+tewxk0wTxZ/Nb0=; b=PBBjb9KZsGdf+z82w418/pWx22ok9rvaRqviSPIPoINXTIjoAw3F+EjdM6hZCb9euL KAzTc+ZFK/L/OsSA/ZFe2wF4c8ndXynBK0LZGezW6lj/q8dExWSbSGRamhDYSUfpnUdp ck4Nm8m8XZNHKP3abOgDzczWyl5RC21dL90FhOY7EdDXNLBiT/1fvFbqcgKL0PlskJKV R+JI4Rnup7u5dl1fwPpLbg2QF/y+dzFTI9llSfuAMKsWScngdQIbZRiGG1MkFqnMCCGa +KQQR6iBXE6X98IoTKnmwnUWJv19temoUepTIGWAFSUX7k8UMm6T8/Tt0M+46YJJ4cs/ mYGg== X-Received: by 10.194.7.97 with SMTP id i1mr65961618wja.107.1438089646307; Tue, 28 Jul 2015 06:20:46 -0700 (PDT) Received: from cizrna.lan ([109.72.12.179]) by smtp.gmail.com with ESMTPSA id h9sm33265696wjx.20.2015.07.28.06.20.44 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 Jul 2015 06:20:45 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Subject: [PATCH v2 07/22] gpio: Probe GPIO drivers on demand Date: Tue, 28 Jul 2015 15:19:38 +0200 Message-Id: <1438089593-7696-8-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1438089593-7696-1-git-send-email-tomeu.vizoso@collabora.com> References: <1438089593-7696-1-git-send-email-tomeu.vizoso@collabora.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150728_062103_751636_077A63B7 X-CRM114-Status: GOOD ( 11.53 ) 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: devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, Arnd Bergmann , Stephen Warren , Linus Walleij , Dmitry Torokhov , "Rafael J. Wysocki" , Tomeu Vizoso , Javier Martinez Canillas , Mark Brown , Thierry Reding , linux-gpio@vger.kernel.org, Alexandre Courbot , 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=-5.5 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 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 v2: None drivers/gpio/gpiolib-of.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index fa6e3c8823d6..31a6b18a6542 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -95,6 +95,8 @@ struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np, return ERR_PTR(ret); } + fwnode_ensure_device(&gg_data.gpiospec.np->fwnode); + gpiochip_find(&gg_data, of_gpiochip_find_and_xlate); of_node_put(gg_data.gpiospec.np);