From patchwork Mon Jul 6 07:59:44 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?6buE5a626ZKX?= X-Patchwork-Id: 11647915 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BF72013B4 for ; Tue, 7 Jul 2020 07:27:04 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A848A20702 for ; Tue, 7 Jul 2020 07:27:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A848A20702 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=rock-chips.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DCF356E5BE; Tue, 7 Jul 2020 07:26:58 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from lucky1.263xmail.com (lucky1.263xmail.com [211.157.147.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9E4436E2E1 for ; Mon, 6 Jul 2020 08:00:40 +0000 (UTC) Received: from localhost (unknown [192.168.167.32]) by lucky1.263xmail.com (Postfix) with ESMTP id 3E97FB05EE; Mon, 6 Jul 2020 16:00:32 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from localhost.localdomain (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P14850T139810951177984S1594022430112946_; Mon, 06 Jul 2020 16:00:31 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: X-RL-SENDER: hjc@rock-chips.com X-SENDER: hjc@rock-chips.com X-LOGIN-NAME: hjc@rock-chips.com X-FST-TO: heiko@sntech.de X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 X-System-Flag: 0 From: Sandy Huang To: heiko@sntech.de, Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter Subject: [PATCH] drm/of: Consider the state in which the ep is disabled Date: Mon, 6 Jul 2020 15:59:44 +0800 Message-Id: <20200706075944.11558-1-hjc@rock-chips.com> X-Mailer: git-send-email 2.17.1 X-Mailman-Approved-At: Tue, 07 Jul 2020 07:26:57 +0000 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: huangtao@rock-chips.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, kever.yang@rock-chips.com, Sandy Huang , andy.yan@rock-chips.com MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" don't mask possible_crtcs if remote-point is disabled. Signed-off-by: Sandy Huang --- drivers/gpu/drm/drm_of.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index fdb05fbf72a0..f5f250435add 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -66,6 +66,11 @@ uint32_t drm_of_find_possible_crtcs(struct drm_device *dev, uint32_t possible_crtcs = 0; for_each_endpoint_of_node(port, ep) { + if (!of_device_is_available(ep)) { + of_node_put(ep); + continue; + } + remote_port = of_graph_get_remote_port(ep); if (!remote_port) { of_node_put(ep);