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=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham 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 78FB3C433E0 for ; Tue, 7 Jul 2020 11:25:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5E112206CD for ; Tue, 7 Jul 2020 11:25:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728356AbgGGLZp (ORCPT ); Tue, 7 Jul 2020 07:25:45 -0400 Received: from lucky1.263xmail.com ([211.157.147.131]:32780 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727044AbgGGLZo (ORCPT ); Tue, 7 Jul 2020 07:25:44 -0400 Received: from localhost (unknown [192.168.167.235]) by lucky1.263xmail.com (Postfix) with ESMTP id 02215B010F; Tue, 7 Jul 2020 19:25:39 +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 P6412T140039679895296S1594121137649538_; Tue, 07 Jul 2020 19:25:39 +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 Cc: huangtao@rock-chips.com, andy.yan@rock-chips.com, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, kever.yang@rock-chips.com, Sandy Huang , linux-kernel@vger.kernel.org Subject: [PATCH v2] drm/of: Consider the state in which the ep is disabled Date: Tue, 7 Jul 2020 19:25:26 +0800 Message-Id: <20200707112526.18438-1-hjc@rock-chips.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org don't mask possible_crtcs if remote-point is disabled. Signed-off-by: Sandy Huang --- drivers/gpu/drm/drm_of.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/drm_of.c b/drivers/gpu/drm/drm_of.c index fdb05fbf72a0..565f05f5f11b 100644 --- a/drivers/gpu/drm/drm_of.c +++ b/drivers/gpu/drm/drm_of.c @@ -66,6 +66,9 @@ 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)) + continue; + remote_port = of_graph_get_remote_port(ep); if (!remote_port) { of_node_put(ep); -- 2.17.1