From patchwork Wed Jan 23 11:12:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jayant Shekhar X-Patchwork-Id: 10777087 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0C8751390 for ; Wed, 23 Jan 2019 11:12:56 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F00D42BD25 for ; Wed, 23 Jan 2019 11:12:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E39732BD26; Wed, 23 Jan 2019 11:12:55 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A20842BD1C for ; Wed, 23 Jan 2019 11:12:55 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CDFB489B3C; Wed, 23 Jan 2019 11:12:54 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from smtp.codeaurora.org (smtp.codeaurora.org [198.145.29.96]) by gabe.freedesktop.org (Postfix) with ESMTPS id 59BED89B3C; Wed, 23 Jan 2019 11:12:53 +0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 35C8A60712; Wed, 23 Jan 2019 11:12:53 +0000 (UTC) Received: from jshekhar-linux.qualcomm.com (blr-c-bdr-fw-01_globalnat_allzones-outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: jshekhar@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id 8E71E6049C; Wed, 23 Jan 2019 11:12:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 8E71E6049C From: Jayant Shekhar To: dri-devel@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [v1] drm/msm: Remove clock and bandwidth votes in mdss pm suspend Date: Wed, 23 Jan 2019 16:42:40 +0530 Message-Id: <1548241960-7412-1-git-send-email-jshekhar@codeaurora.org> X-Mailer: git-send-email 1.9.1 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, abhinavk@codeaurora.org, Jayant Shekhar , seanpaul@chromium.org, hoegsberg@chromium.org, chandanu@codeaurora.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP MDSS PM suspend is dependent on runtime suspend for disabling clocks and removing bandwidth votes. In case of pm_suspend triggered, dpm_prepare hold a refcount on power usage of device and hence runtime suspend is never triggered during pm_suspend. As runtime suspend is not triggered, clocks and bandwidth votes remain. Hence explicitly trigger mdss disable in msm_pm_suspend to disable clocks and remove the votes. Signed-off-by: Jayant Shekhar --- 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 5c60bb3..ffe3a25 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -1068,12 +1068,16 @@ static int msm_pm_suspend(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; + struct msm_mdss *mdss = priv->mdss; if (!IS_ERR_OR_NULL(priv->pm_state)) return 0; priv->pm_state = drm_atomic_helper_suspend(ddev); + if (mdss && mdss->funcs) + mdss->funcs->disable(mdss); + return IS_ERR(priv->pm_state) ? PTR_ERR(priv->pm_state) : 0; } @@ -1081,11 +1085,15 @@ static int msm_pm_resume(struct device *dev) { struct drm_device *ddev = dev_get_drvdata(dev); struct msm_drm_private *priv = ddev->dev_private; + struct msm_mdss *mdss = priv->mdss; int ret; if (IS_ERR_OR_NULL(priv->pm_state)) return 0; + if (mdss && mdss->funcs) + mdss->funcs->enable(mdss); + ret = drm_atomic_helper_resume(ddev, priv->pm_state); if (ret == 0) priv->pm_state = NULL;