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=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 411FAC2D0CE for ; Sun, 29 Dec 2019 17:31:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1A900208E4 for ; Sun, 29 Dec 2019 17:31:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577640675; bh=WHsWUyjkT6BtcW+ctw78vQlYzOCMH3wIY6zzM3e/Ubk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Fe5b4lgJJgVTw1vD+42WoHNPmAJ4vh/olhPjsjCm5DS7Spk2cPxZx/Fo8eg4s/sks 5wvsx1rSKNDHeHBH0Y3PvCUS/6/cap9qe6o2sKqScg5qkMTU3yTK4qrxgDALq4K9Ud ggZChL4GqWOvX95LnRv1Kobtz9fRrF//SDwrw/VQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729122AbfL2RbO (ORCPT ); Sun, 29 Dec 2019 12:31:14 -0500 Received: from mail.kernel.org ([198.145.29.99]:58078 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729102AbfL2RbK (ORCPT ); Sun, 29 Dec 2019 12:31:10 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A150520409; Sun, 29 Dec 2019 17:31:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577640670; bh=WHsWUyjkT6BtcW+ctw78vQlYzOCMH3wIY6zzM3e/Ubk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=YAc24KRsGbBgdS6uIPt1PuyADBBuju5qVedlWe6wdij+1P8rk9VJ17d08BexqSyM9 OJB0ZgeRtE+cC31EOuj7aNqYyEcrTGs4kDKhi1ti1k4hFebBBjpRcc34pPhXWs1yf6 wteiBgCazhJZNZdHFo8GkmzT/Zjlaui7oXOrPGWQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Stanimir Varbanov , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 4.19 051/219] media: venus: Fix occasionally failures to suspend Date: Sun, 29 Dec 2019 18:17:33 +0100 Message-Id: <20191229162515.108617394@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191229162508.458551679@linuxfoundation.org> References: <20191229162508.458551679@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stanimir Varbanov [ Upstream commit 8dbebb2bd01e6f36e9a215dcde99ace70408f2c8 ] Failure to suspend (venus_suspend_3xx) happens when the system is fresh booted and loading venus driver. This happens once and after reload the venus driver modules the problem disrepair. Fix the failure by skipping the check for WFI and IDLE bits if PC_READY is on in control status register. Signed-off-by: Stanimir Varbanov Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/platform/qcom/venus/hfi_venus.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/media/platform/qcom/venus/hfi_venus.c b/drivers/media/platform/qcom/venus/hfi_venus.c index 124085556b94..fbcc67c10993 100644 --- a/drivers/media/platform/qcom/venus/hfi_venus.c +++ b/drivers/media/platform/qcom/venus/hfi_venus.c @@ -1484,6 +1484,7 @@ static int venus_suspend_3xx(struct venus_core *core) { struct venus_hfi_device *hdev = to_hfi_priv(core); struct device *dev = core->dev; + u32 ctrl_status; bool val; int ret; @@ -1499,6 +1500,10 @@ static int venus_suspend_3xx(struct venus_core *core) return -EINVAL; } + ctrl_status = venus_readl(hdev, CPU_CS_SCIACMDARG0); + if (ctrl_status & CPU_CS_SCIACMDARG0_PC_READY) + goto power_off; + /* * Power collapse sequence for Venus 3xx and 4xx versions: * 1. Check for ARM9 and video core to be idle by checking WFI bit @@ -1523,6 +1528,7 @@ static int venus_suspend_3xx(struct venus_core *core) if (ret) return ret; +power_off: mutex_lock(&hdev->lock); ret = venus_power_off(hdev); -- 2.20.1