From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ulf Hansson Subject: [PATCH v3 8/9] mmmc: core: Keep PM domain powered during ->probe() of SDIO func driver Date: Mon, 13 Oct 2014 16:02:09 +0200 Message-ID: <1413208930-26019-9-git-send-email-ulf.hansson@linaro.org> References: <1413208930-26019-1-git-send-email-ulf.hansson@linaro.org> Return-path: Received: from mail-wi0-f175.google.com ([209.85.212.175]:51264 "EHLO mail-wi0-f175.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754141AbaJMOCs (ORCPT ); Mon, 13 Oct 2014 10:02:48 -0400 Received: by mail-wi0-f175.google.com with SMTP id d1so7517254wiv.2 for ; Mon, 13 Oct 2014 07:02:47 -0700 (PDT) In-Reply-To: <1413208930-26019-1-git-send-email-ulf.hansson@linaro.org> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org To: "Rafael J. Wysocki" , Len Brown , Pavel Machek , linux-pm@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Geert Uytterhoeven , Kevin Hilman , Alan Stern , Greg Kroah-Hartman , Tomasz Figa , Simon Horman , Magnus Damm , Ben Dooks , Kukjin Kim , Philipp Zabel , Mark Brown , Wolfram Sang , Russell King , Dmitry Torokhov , Jack Dai , Jinkun Hong , Aaron Lu , Sylwester Nawrocki , Ulf Hansson To sucessfully probe some devices their corresponding PM domains may need to be powered. Use the dev_pm_domain_get|put() APIs, to control the behavior of the PM domain. Signed-off-by: Ulf Hansson --- drivers/mmc/core/sdio_bus.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index ba97779..83c8836 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -318,7 +318,14 @@ int sdio_add_func(struct sdio_func *func) if (ret) return ret; + ret = dev_pm_domain_get(func->dev.pm_domain); + if (ret) { + dev_pm_domain_detach(&func->dev, false); + return ret; + } + ret = device_add(&func->dev); + dev_pm_domain_put(func->dev.pm_domain); if (ret) { dev_pm_domain_detach(&func->dev, false); return ret; -- 1.9.1