From patchwork Thu Apr 6 12:22:21 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: alex X-Patchwork-Id: 9667007 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id C7362601EB for ; Thu, 6 Apr 2017 12:25:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AFF9027FAE for ; Thu, 6 Apr 2017 12:25:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A4932284A3; Thu, 6 Apr 2017 12:25:15 +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=-1.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [65.50.211.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 493D127FAE for ; Thu, 6 Apr 2017 12:25:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=NWTODHR/RRJY78PhgeJkbgfo7ZBR8rEJFmKZfbr9eCM=; b=eG7D4jES6CP5628JBIywNeT9Ye LPLoiqNPuBjEOy39ldAoQzBZbdahZjYbuWeYBDxsqTIYUELc2nBs8HhDb4LRzAbEKk1HdKGZ7j7HM 2l0NAq360OwuPRKhnLmtuwCrDltZC2asdhjFAfTVkqwT6ThCeUZqhCgfNFQM7WlJVWoMmdnQZlXkz wN93uLzUlVdPkl3PSCvJ9aB+PKuYA77FiZJ1DXnqGgK6G7RMxzItURftqY31WSrjGf81CZPEVCzao h9UP7RW3Bm2P5zeUGaD7gPeTXAvMNOWi/4Z6awlmVTof73i5Pk/9mjioPnGcMvr4eswhTvI3YAphr SPFspmIQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.87 #1 (Red Hat Linux)) id 1cw6TS-0007Su-6n; Thu, 06 Apr 2017 12:25:14 +0000 Received: from regular1.263xmail.com ([211.150.99.137]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1cw6Sj-0005EZ-I9; Thu, 06 Apr 2017 12:24:48 +0000 Received: from jeffy.chen?rock-chips.com (unknown [192.168.165.252]) by regular1.263xmail.com (Postfix) with ESMTP id 8D49CDA38; Thu, 6 Apr 2017 20:24:04 +0800 (CST) X-263anti-spam: KSV:0; X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-KSVirus-check: 0 X-ABS-CHECKED: 4 Received: from smtp.263.net (sg-smtp01.263.net [54.255.195.220]) by smtp.263.net (Postfix) with ESMTP id 372173FE; Thu, 6 Apr 2017 20:24:04 +0800 (CST) Received: from localhost (localhost.localdomain [127.0.0.1]) by smtp.263.net (Postfix) with ESMTP id 851C5DF30D; Thu, 6 Apr 2017 20:24:05 +0800 (CST) X-RL-SENDER: jeffy.chen@rock-chips.com X-FST-TO: linux-kernel@vger.kernel.org X-SENDER-IP: 103.29.142.67 X-LOGIN-NAME: jeffy.chen@rock-chips.com X-UNIQUE-TAG: <4fbe6059fefa74ac59cd6eade6f2a3bd> X-ATTACHMENT-NUM: 0 X-SENDER: cjf@rock-chips.com X-DNS-TYPE: 0 Received: from localhost (unknown [103.29.142.67]) by smtp.263.net (Postfix) whith ESMTP id 24634D5X1FP; Thu, 06 Apr 2017 20:24:06 +0800 (CST) From: Your Name To: linux-kernel@vger.kernel.org Subject: [PATCH v4 10/12] drm/rockchip: Reoder drm bind/unbind sequence Date: Thu, 6 Apr 2017 20:22:21 +0800 Message-Id: <1491481343-11025-11-git-send-email-you@example.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1491481343-11025-1-git-send-email-you@example.com> References: <1491481343-11025-1-git-send-email-you@example.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20170406_052430_869372_DFCA28BA X-CRM114-Status: UNSURE ( 8.06 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jeffy Chen , Heiko Stuebner , David Airlie , Your Name , briannorris@chromium.org, dianders@chromium.org, dri-devel@lists.freedesktop.org, tfiga@chromium.org, linux-rockchip@lists.infradead.org, seanpaul@chromium.org, zyw@rock-chips.com, linux-arm-kernel@lists.infradead.org, mark.yao@rock-chips.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Jeffy Chen Current drm bind/unbind sequence would cause some memory issues. For example we should not cleanup iommu before cleanup mode config. Reorder bind/unbind sequence, follow exynos drm. Signed-off-by: Jeffy Chen Signed-off-by: Your Name --- Changes in v4: None Changes in v3: Address Sean Paul 's comments. Update commit message. Changes in v2: None drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 49 +++++++++++++++-------------- 1 file changed, 26 insertions(+), 23 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index cd7d02e1..f24968f 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -136,21 +136,24 @@ static int rockchip_drm_bind(struct device *dev) INIT_LIST_HEAD(&private->psr_list); spin_lock_init(&private->psr_list_lock); + ret = rockchip_drm_init_iommu(drm_dev); + if (ret) + goto err_free; + drm_mode_config_init(drm_dev); rockchip_drm_mode_config_init(drm_dev); - ret = rockchip_drm_init_iommu(drm_dev); - if (ret) - goto err_config_cleanup; - /* Try to bind all sub drivers. */ ret = component_bind_all(dev, drm_dev); if (ret) - goto err_iommu_cleanup; + goto err_mode_config_cleanup; - /* init kms poll for handling hpd */ - drm_kms_helper_poll_init(drm_dev); + ret = drm_vblank_init(drm_dev, drm_dev->mode_config.num_crtc); + if (ret) + goto err_unbind_all; + + drm_mode_config_reset(drm_dev); /* * enable drm irq mode. @@ -158,15 +161,12 @@ static int rockchip_drm_bind(struct device *dev) */ drm_dev->irq_enabled = true; - ret = drm_vblank_init(drm_dev, ROCKCHIP_MAX_CRTC); - if (ret) - goto err_kms_helper_poll_fini; - - drm_mode_config_reset(drm_dev); + /* init kms poll for handling hpd */ + drm_kms_helper_poll_init(drm_dev); ret = rockchip_drm_fbdev_init(drm_dev); if (ret) - goto err_vblank_cleanup; + goto err_kms_helper_poll_fini; ret = drm_dev_register(drm_dev, 0); if (ret) @@ -175,17 +175,17 @@ static int rockchip_drm_bind(struct device *dev) return 0; err_fbdev_fini: rockchip_drm_fbdev_fini(drm_dev); -err_vblank_cleanup: - drm_vblank_cleanup(drm_dev); err_kms_helper_poll_fini: drm_kms_helper_poll_fini(drm_dev); + drm_vblank_cleanup(drm_dev); +err_unbind_all: component_unbind_all(dev, drm_dev); -err_iommu_cleanup: - rockchip_iommu_cleanup(drm_dev); -err_config_cleanup: +err_mode_config_cleanup: drm_mode_config_cleanup(drm_dev); - drm_dev->dev_private = NULL; + rockchip_iommu_cleanup(drm_dev); err_free: + drm_dev->dev_private = NULL; + dev_set_drvdata(dev, NULL); drm_dev_unref(drm_dev); return ret; } @@ -194,16 +194,19 @@ static void rockchip_drm_unbind(struct device *dev) { struct drm_device *drm_dev = dev_get_drvdata(dev); + drm_dev_unregister(drm_dev); + rockchip_drm_fbdev_fini(drm_dev); - drm_vblank_cleanup(drm_dev); drm_kms_helper_poll_fini(drm_dev); + + drm_vblank_cleanup(drm_dev); component_unbind_all(dev, drm_dev); - rockchip_iommu_cleanup(drm_dev); drm_mode_config_cleanup(drm_dev); + rockchip_iommu_cleanup(drm_dev); + drm_dev->dev_private = NULL; - drm_dev_unregister(drm_dev); - drm_dev_unref(drm_dev); dev_set_drvdata(dev, NULL); + drm_dev_unref(drm_dev); } static void rockchip_drm_lastclose(struct drm_device *dev)