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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 722CCC433F5 for ; Tue, 5 Apr 2022 13:48:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1390918AbiDENpg (ORCPT ); Tue, 5 Apr 2022 09:45:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347153AbiDEJZS (ORCPT ); Tue, 5 Apr 2022 05:25:18 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3F7FFAA018; Tue, 5 Apr 2022 02:14:52 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1405961659; Tue, 5 Apr 2022 09:14:13 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2456BC385A0; Tue, 5 Apr 2022 09:14:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1649150052; bh=aVUBwy5ixGJpNkudBT7QG5qe2UFBdxE/HFTF2miR6uw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Gb2svhWrgPuGQ0BmRVqDy1irybc6a77A7wgOTkSF6Y+rYf+X55k57kNU74R5elzRW HR5spq1jQVCNl4Xz5qCBpzJ4PxZ31Mwpg/BmUiIXKqR4myR+YZ7RSIKQrl+tZwC1SG HirqyRnnVg0pNbbtsZWVcexNWj0+/GeCvOEYNK44= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jacky Bai , Peng Fan , Robin Gong , Jassi Brar Subject: [PATCH 5.16 0937/1017] mailbox: imx: fix wakeup failure from freeze mode Date: Tue, 5 Apr 2022 09:30:50 +0200 Message-Id: <20220405070422.027277386@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220405070354.155796697@linuxfoundation.org> References: <20220405070354.155796697@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Robin Gong commit 892cb524ae8a27bf5e42f711318371acd9a9f74a upstream. Since IRQF_NO_SUSPEND used for imx mailbox driver, that means this irq can't be used for wakeup source so that can't wakeup from freeze mode. Add pm_system_wakeup() to wakeup from freeze mode. Fixes: b7b2796b9b31e("mailbox: imx: ONLY IPC MU needs IRQF_NO_SUSPEND flag") Reviewed-by: Jacky Bai Reviewed-by: Peng Fan Signed-off-by: Robin Gong Signed-off-by: Peng Fan Signed-off-by: Jassi Brar Signed-off-by: Greg Kroah-Hartman --- drivers/mailbox/imx-mailbox.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/drivers/mailbox/imx-mailbox.c +++ b/drivers/mailbox/imx-mailbox.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #define IMX_MU_CHANS 16 @@ -76,6 +77,7 @@ struct imx_mu_priv { const struct imx_mu_dcfg *dcfg; struct clk *clk; int irq; + bool suspend; u32 xcr[4]; @@ -334,6 +336,9 @@ static irqreturn_t imx_mu_isr(int irq, v return IRQ_NONE; } + if (priv->suspend) + pm_system_wakeup(); + return IRQ_HANDLED; } @@ -702,6 +707,8 @@ static int __maybe_unused imx_mu_suspend priv->xcr[i] = imx_mu_read(priv, priv->dcfg->xCR[i]); } + priv->suspend = true; + return 0; } @@ -723,6 +730,8 @@ static int __maybe_unused imx_mu_resume_ imx_mu_write(priv, priv->xcr[i], priv->dcfg->xCR[i]); } + priv->suspend = false; + return 0; }