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=-13.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 F3082C433E2 for ; Mon, 31 Aug 2020 15:38:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C8B9B207EA for ; Mon, 31 Aug 2020 15:38:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598888329; bh=igUA3ysCtvbQZlZxzdgP/arDzUKvL7VVNXaZw/amLFA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=OEWkjSYj7u4+/sGBFBTXFYftAyY55EXvzkWCVZjTtz32izTkk3/hjhF6DNVnbLlEY xfmCNCbG2rIUB/uaSHJR5mCW/+tIWM8/lMxAW4/J1ztFUrq1zX++FzqWhXA0+rdRW/ QOTWtYQBQ5xckFPd+IxZ/wd2topB+VQEV0MZpbx8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728563AbgHaPaR (ORCPT ); Mon, 31 Aug 2020 11:30:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:38656 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728454AbgHaP3u (ORCPT ); Mon, 31 Aug 2020 11:29:50 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 276F220767; Mon, 31 Aug 2020 15:29:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1598887790; bh=igUA3ysCtvbQZlZxzdgP/arDzUKvL7VVNXaZw/amLFA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IcUH9tXPhQYDf7AKDqKwFWhGQywl4yYnEP9UsKnJpS+ClPq64CHQ2I8+MpCr/Hs8F kc8P8vHdY9ACCOHUu+h6MOEBru5cU0FD/2IZAiqW9oNjL5s4bFxHcmg/qS8j3y/Gb/ bJCWwyEzkgNYeqwd6Qzb/4WUAJS78PjsZJUJvN28= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Krishna Manikandan , Rob Clark , Sasha Levin , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.8 09/42] drm/msm: add shutdown support for display platform_driver Date: Mon, 31 Aug 2020 11:29:01 -0400 Message-Id: <20200831152934.1023912-9-sashal@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200831152934.1023912-1-sashal@kernel.org> References: <20200831152934.1023912-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Krishna Manikandan [ Upstream commit 9d5cbf5fe46e350715389d89d0c350d83289a102 ] Define shutdown callback for display drm driver, so as to disable all the CRTCS when shutdown notification is received by the driver. This change will turn off the timing engine so that no display transactions are requested while mmu translations are getting disabled during reboot sequence. Signed-off-by: Krishna Manikandan Changes in v2: - Remove NULL check from msm_pdev_shutdown (Stephen Boyd) - Change commit text to reflect when this issue was uncovered (Sai Prakash Ranjan) Signed-off-by: Rob Clark Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/msm_drv.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index f6ce40bf36998..b4d61af7a104e 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1328,6 +1328,13 @@ static int msm_pdev_remove(struct platform_device *pdev) return 0; } +static void msm_pdev_shutdown(struct platform_device *pdev) +{ + struct drm_device *drm = platform_get_drvdata(pdev); + + drm_atomic_helper_shutdown(drm); +} + static const struct of_device_id dt_match[] = { { .compatible = "qcom,mdp4", .data = (void *)KMS_MDP4 }, { .compatible = "qcom,mdss", .data = (void *)KMS_MDP5 }, @@ -1340,6 +1347,7 @@ MODULE_DEVICE_TABLE(of, dt_match); static struct platform_driver msm_platform_driver = { .probe = msm_pdev_probe, .remove = msm_pdev_remove, + .shutdown = msm_pdev_shutdown, .driver = { .name = "msm", .of_match_table = dt_match, -- 2.25.1