From patchwork Wed Jul 6 17:24:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 12908409 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 ADA55C433EF for ; Wed, 6 Jul 2022 17:24:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232713AbiGFRYg (ORCPT ); Wed, 6 Jul 2022 13:24:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46290 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232592AbiGFRYg (ORCPT ); Wed, 6 Jul 2022 13:24:36 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 69B75B99; Wed, 6 Jul 2022 10:24:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657128275; x=1688664275; h=from:to:cc:subject:date:message-id:mime-version; bh=mceTDkANXKKZ+cDEZtrXAG36yhBvkMzaJGxFZJ3jvww=; b=N4sVyZQ/fvBqvVXk/UGZamhY/5sx+v4yKlRFUe3rqBez78f+kGqGQ7F5 HyqM9BECXSxX7lc2mzQkN7DQe7umcoi5/FxtUhv/W1WHHkz8o6JzhNDjS rvOM6aWV9kxHy9gV1daGvdfBhdsDD4dNZAvNU5h7DxTatJVCIySPM3yuC Y=; Received: from ironmsg08-lv.qualcomm.com ([10.47.202.152]) by alexa-out.qualcomm.com with ESMTP; 06 Jul 2022 10:24:35 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg08-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Jul 2022 10:24:34 -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; Wed, 6 Jul 2022 10:24:14 -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; Wed, 6 Jul 2022 10:24:13 -0700 From: Kuogee Hsieh To: , , , , , , , , , CC: , , , , , , , Subject: [PATCH v3] drm/msm/dp: make eDP panel as the first connected connector Date: Wed, 6 Jul 2022 10:24:06 -0700 Message-ID: <1657128246-15929-1-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 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 Some userspace presumes that the first connected connector is the main display, where it's supposed to display e.g. the login screen. For laptops, this should be the main panel. This patch call drm_helper_move_panel_connectors_to_head() after drm_bridge_connector_init() to make sure eDP stay at head of connected connector list. This fixes unexpected corruption happen at eDP panel if eDP is not placed at head of connected connector list. Changes in v2: -- move drm_helper_move_panel_connectors_to_head() to dpu_kms_drm_obj_init() Signed-off-by: Kuogee Hsieh --- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 2b9d931..50ff666 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -763,6 +763,8 @@ static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) if (ret) return ret; + drm_helper_move_panel_connectors_to_head(dev); + num_encoders = 0; drm_for_each_encoder(encoder, dev) num_encoders++;