From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: Re: [PATCH 2/2] gpio: tegra: fix suspend/resume apis Date: Wed, 07 Nov 2012 10:11:41 -0700 Message-ID: <509A964D.2050205@wwwdotorg.org> References: <1352300492-24779-1-git-send-email-ldewangan@nvidia.com> <1352300492-24779-2-git-send-email-ldewangan@nvidia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1352300492-24779-2-git-send-email-ldewangan-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Laxman Dewangan Cc: linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, grant.likely-s3s/WqlpOiPyB63q8FvJNQ@public.gmane.org, swarren-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-tegra@vger.kernel.org On 11/07/2012 08:01 AM, Laxman Dewangan wrote: > Following are changes done to fix the suspend/resume > functionality of tegra gpio driver: > - Protect suspend/resume callbacks with CONFIG_PM_SLEEP > because CONFIG_PM doesn't actually enable any of the PM callbacks, it > only allows to enable CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME. > This means if CONFIG_PM is used to protect system sleep callbacks > then it may end up unreferenced if only runtime PM is enabled. > > - Fix the suspend/resume APIs declaration as per callback prototype. Seems plausible, so this patch, Acked-by: Stephen Warren I wonder why the suspend/resume functions weren't actually hooked up anywhere before. Oh well. Just one very minor nit below: > diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c > +#ifdef CONFIG_PM_SLEEP > +static int tegra_gpio_resume(struct device *dev) There are two spaces after "int" there.