From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932465AbbG1NXj (ORCPT ); Tue, 28 Jul 2015 09:23:39 -0400 Received: from mail-wi0-f174.google.com ([209.85.212.174]:36003 "EHLO mail-wi0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932113AbbG1NVG (ORCPT ); Tue, 28 Jul 2015 09:21:06 -0400 From: Tomeu Vizoso To: linux-kernel@vger.kernel.org Cc: 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-pwm@vger.kernel.org Subject: [PATCH v2 14/22] pwm: Probe PWM chip devices on demand Date: Tue, 28 Jul 2015 15:19:45 +0200 Message-Id: <1438089593-7696-15-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> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When looking up a PWM chip 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/pwm/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 3a7769fe53de..4727cbf69d96 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -496,6 +496,8 @@ static struct pwm_chip *of_node_to_pwmchip(struct device_node *np) { struct pwm_chip *chip; + fwnode_ensure_device(&np->fwnode); + mutex_lock(&pwm_lock); list_for_each_entry(chip, &pwm_chips, list) -- 2.4.3