From patchwork Mon Sep 7 12:23:30 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomeu Vizoso X-Patchwork-Id: 515124 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id C05491401AF for ; Mon, 7 Sep 2015 22:32:51 +1000 (AEST) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=PnoT0n1w; dkim-atps=neutral Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751677AbbIGMYU (ORCPT ); Mon, 7 Sep 2015 08:24:20 -0400 Received: from mail-wi0-f178.google.com ([209.85.212.178]:38701 "EHLO mail-wi0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751568AbbIGMYQ (ORCPT ); Mon, 7 Sep 2015 08:24:16 -0400 Received: by wiclk2 with SMTP id lk2so82442018wic.1; Mon, 07 Sep 2015 05:24:15 -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=zswKPZ7Q3LjhMm05YR+E2KcJTnoqlYRa5tkkUnCOTCI=; b=PnoT0n1weCDdyHaOViLykLdh5NA25yCTgg0V9KjFX59LQbWEIYDKeA6AYAIswEardy qpOUs7xFdYski2iVZleDWD/BJHtY2kssEoo9UYbZ35q6MwTZw7xfxMsDb3zhsekKOsv4 J96DgDvnUYAb7vQiBq0Ddi1+poHaHofytlLM13BlQaphSpGqhOKXKv276eVGX4cOZlkf dMvxqExkWLg/RfWUU0sXix6qtimEsZHMttYrowL3NTmzYj6yoVRzTcxYWU6cfqvgm6Jl nmFxtxxORIJVcJGiZYVVfGqtz1Tc0pDYHU1yYQfSfONh8MjjaNXPbs69gtICMh0C9kRA 0kFw== X-Received: by 10.180.108.175 with SMTP id hl15mr34190916wib.1.1441628655193; Mon, 07 Sep 2015 05:24:15 -0700 (PDT) Received: from cizrna.lan ([109.72.12.78]) by smtp.gmail.com with ESMTPSA id cm6sm15438wib.22.2015.09.07.05.24.13 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 07 Sep 2015 05:24:14 -0700 (PDT) From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Cc: Rob Herring , Stephen Warren , Javier Martinez Canillas , Mark Brown , Thierry Reding , "Rafael J. Wysocki" , linux-arm-kernel@lists.infradead.org, Dmitry Torokhov , devicetree@vger.kernel.org, Linus Walleij , linux-acpi@vger.kernel.org, Arnd Bergmann , Tomeu Vizoso , linux-gpio@vger.kernel.org, Alexandre Courbot Subject: [PATCH v4 05/22] gpio: Probe GPIO drivers on demand Date: Mon, 7 Sep 2015 14:23:30 +0200 Message-Id: <1441628627-5143-6-git-send-email-tomeu.vizoso@collabora.com> X-Mailer: git-send-email 2.4.3 In-Reply-To: <1441628627-5143-1-git-send-email-tomeu.vizoso@collabora.com> References: <1441628627-5143-1-git-send-email-tomeu.vizoso@collabora.com> Sender: linux-gpio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-gpio@vger.kernel.org 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 Acked-by: Linus Walleij --- 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);