From patchwork Thu Feb 20 02:11:53 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddharth Gupta X-Patchwork-Id: 11393049 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id AE4EA17F0 for ; Thu, 20 Feb 2020 02:12:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8F87324672 for ; Thu, 20 Feb 2020 02:12:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="r/Yxe+YR" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727877AbgBTCMN (ORCPT ); Wed, 19 Feb 2020 21:12:13 -0500 Received: from mail27.static.mailgun.info ([104.130.122.27]:29724 "EHLO mail27.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727668AbgBTCMN (ORCPT ); Wed, 19 Feb 2020 21:12:13 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1582164733; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=t15n6yBKLX2ibvF8ZHGW5Z7Dt9gbYeMrwtq2d0/Wg3w=; b=r/Yxe+YR4GyO4nxX3jhh/GcPMI0V+CCJ7nGDvDih4rCY/oIQaxaYfxxM3S8fPr6NRCRuFW9Y 3RBgByAYpiHKb3hQLGxNee8K+wHSIfkNGdCM65Lulk407OeZ8m3t2I8rrIiBPUn11+0A5wnG hu+NUTytJEUOZ+dRmQPeMIhx6g0= X-Mailgun-Sending-Ip: 104.130.122.27 X-Mailgun-Sid: WyI4ZWZiZiIsICJsaW51eC1yZW1vdGVwcm9jQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5e4deaf3.7fc9a66a80a0-smtp-out-n02; Thu, 20 Feb 2020 02:12:03 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 9BC86C447A3; Thu, 20 Feb 2020 02:12:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-caf-mail-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=2.0 tests=ALL_TRUSTED,SPF_NONE, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from sidgup-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: sidgup) by smtp.codeaurora.org (Postfix) with ESMTPSA id E5DE5C447A2; Thu, 20 Feb 2020 02:12:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org E5DE5C447A2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=sidgup@codeaurora.org From: Siddharth Gupta To: ohad@wizery.com, bjorn.andersson@linaro.org Cc: Siddharth Gupta , linux-remoteproc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, tsoni@codeaurora.org, psodagud@codeaurora.org, rishabhb@codeaurora.org Subject: [PATCH 2/2] remoteproc: core: Prevent sleep when rproc crashes Date: Wed, 19 Feb 2020 18:11:53 -0800 Message-Id: <1582164713-6413-3-git-send-email-sidgup@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1582164713-6413-1-git-send-email-sidgup@codeaurora.org> References: <1582164713-6413-1-git-send-email-sidgup@codeaurora.org> Sender: linux-remoteproc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org Remoteproc recovery should be fast and any delay will have an impact on the user-experience. Use power management APIs (pm_stay_awake and pm_relax) to ensure that the system does not go to sleep. Signed-off-by: Siddharth Gupta --- drivers/remoteproc/remoteproc_core.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 5ab65a4..52e318c 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1712,6 +1712,8 @@ static void rproc_crash_handler_work(struct work_struct *work) if (!rproc->recovery_disabled) rproc_trigger_recovery(rproc); + + pm_relax(&rproc->dev); } /** @@ -2242,6 +2244,8 @@ void rproc_report_crash(struct rproc *rproc, enum rproc_crash_type type) return; } + pm_stay_awake(&rproc->dev); + dev_err(&rproc->dev, "crash detected in %s: type %s\n", rproc->name, rproc_crash_to_string(type));