From patchwork Fri Jun 3 21:28:35 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 12869425 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 E6EE5C433EF for ; Fri, 3 Jun 2022 21:28:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347251AbiFCV2v (ORCPT ); Fri, 3 Jun 2022 17:28:51 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45792 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346945AbiFCV2u (ORCPT ); Fri, 3 Jun 2022 17:28:50 -0400 Received: from alexa-out-sd-02.qualcomm.com (alexa-out-sd-02.qualcomm.com [199.106.114.39]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1D25D38BE6; Fri, 3 Jun 2022 14:28:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1654291730; x=1685827730; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=qBf7SPxpqP0Bcn545MSGUrPP9amWnHRUxaBiUmX2YmI=; b=MludqLFhAwZ/aWUK2h7iXfPKmp5RXm2B62mwcrMZRtJrJxxRCdaL+zrX rgl4tPSW1eVjSay6ta/3HVOVvxFovhrGkl+VJ+YTuBL0BlaRFHs0AP734 0BsCa+beQ3xkWz7JVUJsskaYofl7DvadeUzNOBNQLLAqIuneh7X1Wj12v w=; Received: from unknown (HELO ironmsg05-sd.qualcomm.com) ([10.53.140.145]) by alexa-out-sd-02.qualcomm.com with ESMTP; 03 Jun 2022 14:28:49 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg05-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jun 2022 14:28:49 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Fri, 3 Jun 2022 14:28:48 -0700 Received: from khsieh-linux1.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Fri, 3 Jun 2022 14:28:48 -0700 From: Kuogee Hsieh To: , , , , , , , , , , CC: Kuogee Hsieh , , , , , , Subject: [PATCH v1 1/2] drm/msm: enable msm irq after all initializations are done successfully at msm_drm_init() Date: Fri, 3 Jun 2022 14:28:35 -0700 Message-ID: <1654291716-6603-2-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1654291716-6603-1-git-send-email-quic_khsieh@quicinc.com> References: <1654291716-6603-1-git-send-email-quic_khsieh@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org At msm initialize phase, msm_drm_init() is called to initialize modules sequentially. It will call msm_drm_uninit() to clean up initialized phase if any module initialization return failed. This patch move msm_irq_install() to the last step of msm_drm_init() after all modules are initialized successfully so that no msm_irq_unistall() required at msm_drm_uninit() if any module initialization failed happen at msm_drm_init(). Signed-off-by: Kuogee Hsieh --- drivers/gpu/drm/msm/msm_drv.c | 29 ++++++----------------------- 1 file changed, 6 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c index 6665c5a..ab42e9a 100644 --- a/drivers/gpu/drm/msm/msm_drv.c +++ b/drivers/gpu/drm/msm/msm_drv.c @@ -132,15 +132,6 @@ static int msm_irq_install(struct drm_device *dev, unsigned int irq) return 0; } -static void msm_irq_uninstall(struct drm_device *dev) -{ - struct msm_drm_private *priv = dev->dev_private; - struct msm_kms *kms = priv->kms; - - kms->funcs->irq_uninstall(kms); - free_irq(kms->irq, dev); -} - struct msm_vblank_work { struct work_struct work; int crtc_id; @@ -232,10 +223,6 @@ static int msm_drm_uninit(struct device *dev) drm_mode_config_cleanup(ddev); - pm_runtime_get_sync(dev); - msm_irq_uninstall(ddev); - pm_runtime_put_sync(dev); - if (kms && kms->funcs) kms->funcs->destroy(kms); @@ -437,16 +424,6 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) goto err_msm_uninit; } - if (kms) { - pm_runtime_get_sync(dev); - ret = msm_irq_install(ddev, kms->irq); - pm_runtime_put_sync(dev); - if (ret < 0) { - DRM_DEV_ERROR(dev, "failed to install IRQ handler\n"); - goto err_msm_uninit; - } - } - ret = drm_dev_register(ddev, 0); if (ret) goto err_msm_uninit; @@ -467,6 +444,12 @@ static int msm_drm_init(struct device *dev, const struct drm_driver *drv) if (ret) goto err_msm_uninit; + if (kms) { + pm_runtime_get_sync(dev); + msm_irq_install(ddev, kms->irq); + pm_runtime_put_sync(dev); + } + drm_kms_helper_poll_init(ddev); return 0;