From patchwork Thu Oct 16 10:13:30 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 5089761 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 [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5B892C11AC for ; Thu, 16 Oct 2014 10:16:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 87D0D20107 for ; Thu, 16 Oct 2014 10:16:37 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B23C2200F4 for ; Thu, 16 Oct 2014 10:16:36 +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 1Xei4d-0003SY-IP; Thu, 16 Oct 2014 10:14:23 +0000 Received: from bhuna.collabora.co.uk ([93.93.135.160]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Xei4M-0003Kb-Ie for linux-arm-kernel@lists.infradead.org; Thu, 16 Oct 2014 10:14:07 +0000 Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: javier) with ESMTPSA id B9E2E600556 From: Javier Martinez Canillas To: Kukjin Kim Subject: [PATCH v2 2/2] ARM: EXYNOS: Call regulator core suspend prepare and finish functions Date: Thu, 16 Oct 2014 12:13:30 +0200 Message-Id: <1413454410-23396-3-git-send-email-javier.martinez@collabora.co.uk> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1413454410-23396-1-git-send-email-javier.martinez@collabora.co.uk> References: <1413454410-23396-1-git-send-email-javier.martinez@collabora.co.uk> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141016_031406_780407_DB866666 X-CRM114-Status: GOOD ( 14.76 ) X-Spam-Score: -0.0 (/) Cc: linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, Doug Anderson , Tomasz Figa , Chanwoo Choi , Mark Brown , Lee Jones , Javier Martinez Canillas , linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , 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=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 The regulator framework has a set of helpers functions to be used when the system is entering and leaving from suspend but these are not called on Exynos platforms. This means that the .set_suspend_* function handlers defined by regulator drivers are not called when the system is suspended. Suggested-by: Doug Anderson Signed-off-by: Javier Martinez Canillas Reviewed-by: Chanwoo Choi --- arch/arm/mach-exynos/suspend.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm/mach-exynos/suspend.c b/arch/arm/mach-exynos/suspend.c index cc8d237..ee9a8e0 100644 --- a/arch/arm/mach-exynos/suspend.c +++ b/arch/arm/mach-exynos/suspend.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -443,6 +444,22 @@ static int exynos_suspend_enter(suspend_state_t state) static int exynos_suspend_prepare(void) { + int ret; + + /* + * REVISIT: It would be better if struct platform_suspend_ops + * .prepare handler get the suspend_state_t as a parameter to + * avoid hard-coding the suspend to mem state. It's safe to do + * it now only because the suspend_valid_only_mem function is + * used as the .valid callback used to check if a given state + * is supported by the platform anyways. + */ + ret = regulator_suspend_prepare(PM_SUSPEND_MEM); + if (ret) { + pr_err("Failed to prepare regulators for system suspend\n"); + return ret; + } + s3c_pm_check_prepare(); return 0; @@ -451,6 +468,7 @@ static int exynos_suspend_prepare(void) static void exynos_suspend_finish(void) { s3c_pm_check_cleanup(); + regulator_suspend_finish(); } static const struct platform_suspend_ops exynos_suspend_ops = {