From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5F80C54FCB for ; Thu, 23 Apr 2020 23:16:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A5D942077D for ; Thu, 23 Apr 2020 23:16:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729420AbgDWXQV (ORCPT ); Thu, 23 Apr 2020 19:16:21 -0400 Received: from inva020.nxp.com ([92.121.34.13]:49978 "EHLO inva020.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729136AbgDWXQU (ORCPT ); Thu, 23 Apr 2020 19:16:20 -0400 Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 05CB11A0187; Fri, 24 Apr 2020 01:16:18 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 82F641A01A5; Fri, 24 Apr 2020 01:16:14 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id D951F402C7; Fri, 24 Apr 2020 07:16:09 +0800 (SGT) From: Anson Huang To: shawnguo@kernel.org, s.hauer@pengutronix.de, kernel@pengutronix.de, festevam@gmail.com, ben.dooks@codethink.co.uk, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Linux-imx@nxp.com Subject: [PATCH 1/2] firmware: imx: make sure MU irq can wake up system from suspend mode Date: Fri, 24 Apr 2020 07:07:10 +0800 Message-Id: <1587683231-18468-1-git-send-email-Anson.Huang@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org IRQF_NO_SUSPEND flag is set for MU IRQ of IPC work, but with this flag set, IRQD_WAKEUP_ARMED flag will NOT be set during suspend_device_irq() phase, then when MU IRQ arrives, it will NOT wake up system from suspend. To fix this issue, pm_system_wakeup() is called in general MU IRQ handler to make sure system can be waked up when MU IRQ arrives. Signed-off-by: Anson Huang --- drivers/firmware/imx/imx-scu-irq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/firmware/imx/imx-scu-irq.c b/drivers/firmware/imx/imx-scu-irq.c index db655e8..d9dcc20 100644 --- a/drivers/firmware/imx/imx-scu-irq.c +++ b/drivers/firmware/imx/imx-scu-irq.c @@ -10,6 +10,7 @@ #include #include #include +#include #define IMX_SC_IRQ_FUNC_ENABLE 1 #define IMX_SC_IRQ_FUNC_STATUS 2 @@ -91,6 +92,7 @@ static void imx_scu_irq_work_handler(struct work_struct *work) if (!irq_status) continue; + pm_system_wakeup(); imx_scu_irq_notifier_call_chain(irq_status, &i); } } -- 2.7.4