From patchwork Tue Jul 7 01:09:30 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephen Boyd X-Patchwork-Id: 6729411 X-Patchwork-Delegate: agross@codeaurora.org Return-Path: X-Original-To: patchwork-linux-arm-msm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E153F9F380 for ; Tue, 7 Jul 2015 01:09:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id BFDD820765 for ; Tue, 7 Jul 2015 01:09:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7E4272061C for ; Tue, 7 Jul 2015 01:09:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756301AbbGGBJe (ORCPT ); Mon, 6 Jul 2015 21:09:34 -0400 Received: from smtp.codeaurora.org ([198.145.29.96]:34322 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755544AbbGGBJd (ORCPT ); Mon, 6 Jul 2015 21:09:33 -0400 Received: from smtp.codeaurora.org (localhost [127.0.0.1]) by smtp.codeaurora.org (Postfix) with ESMTP id AEAA7140223; Tue, 7 Jul 2015 01:09:32 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 486) id 8C70214022F; Tue, 7 Jul 2015 01:09:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-7.6 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from sboyd-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: sboyd@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 66163140223; Tue, 7 Jul 2015 01:09:31 +0000 (UTC) From: Stephen Boyd To: Linus Walleij Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org, Bjorn Andersson , Pramod Gurav Subject: [PATCH] pinctrl: qcom: Hook pm_power_down for shutdown support Date: Mon, 6 Jul 2015 18:09:30 -0700 Message-Id: <1436231370-18301-1-git-send-email-sboyd@codeaurora.org> X-Mailer: git-send-email 2.3.0.rc1.33.g42e4583 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Assign pm_power_off() if we have the PS_HOLD functionality so that we can properly shutdown the SoC. Otherwise, shutdown won't do anything besides put the CPU into a tight loop. Unfortunately, we have to use a singleton here because pm_power_off() doesn't take any arguments. Fortunately there's only one instance of the pinctrl device on a running system so this isn't a problem. Cc: Bjorn Andersson Cc: Pramod Gurav Signed-off-by: Stephen Boyd Acked-by: Bjorn Andersson --- drivers/pinctrl/qcom/pinctrl-msm.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index e457d52302a2..6242af8a42d5 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -28,6 +28,7 @@ #include #include #include +#include #include "../core.h" #include "../pinconf.h" @@ -855,6 +856,13 @@ static int msm_ps_hold_restart(struct notifier_block *nb, unsigned long action, return NOTIFY_DONE; } +static struct msm_pinctrl *poweroff_pctrl; + +static void msm_ps_hold_poweroff(void) +{ + msm_ps_hold_restart(&poweroff_pctrl->restart_nb, 0, NULL); +} + static void msm_pinctrl_setup_pm_reset(struct msm_pinctrl *pctrl) { int i; @@ -867,6 +875,8 @@ static void msm_pinctrl_setup_pm_reset(struct msm_pinctrl *pctrl) if (register_restart_handler(&pctrl->restart_nb)) dev_err(pctrl->dev, "failed to setup restart handler.\n"); + poweroff_pctrl = pctrl; + pm_power_off = msm_ps_hold_poweroff; break; } }