From patchwork Tue Nov 3 20:48:59 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 11879865 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=-6.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=no 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 7DBFDC388F7 for ; Wed, 4 Nov 2020 08:23:16 +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 0787A20781 for ; Wed, 4 Nov 2020 08:23:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="CRZvYxD3" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0787A20781 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=codeaurora.org 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 D125689C37; Wed, 4 Nov 2020 08:22:17 +0000 (UTC) Received: from m42-4.mailgun.net (m42-4.mailgun.net [69.72.42.4]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2FD4C6E8DB for ; Tue, 3 Nov 2020 20:49:24 +0000 (UTC) DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1604436564; h=Content-Transfer-Encoding: MIME-Version: Message-Id: Date: Subject: Cc: To: From: Sender; bh=v38VIvvqFPW9T8r0lWGRdQ5SsoAKhs1w4NYwSBxeq3U=; b=CRZvYxD3oTNbI8Nl/qL/A3Us4IlZ79mxLwc+Cd+EVVw0hwmVURW1YttRNKmTat1jzhDEDoLs JrLAiKt26VyPfS3nYeaPhTzRvJc11fwoOuTYk7z93aDwl9Aw6jSMwKnH481QqQxNqtHQvFsA sND+N1XI3lFC5HcAlY0XrhT+104= X-Mailgun-Sending-Ip: 69.72.42.4 X-Mailgun-Sid: WyJkOTU5ZSIsICJkcmktZGV2ZWxAbGlzdHMuZnJlZWRlc2t0b3Aub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-east-1.postgun.com with SMTP id 5fa1c2527b1a71d668589419 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 03 Nov 2020 20:49:22 GMT Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 8565FC43443; Tue, 3 Nov 2020 20:49:21 +0000 (UTC) Received: from khsieh-linux1.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: khsieh) by smtp.codeaurora.org (Postfix) with ESMTPSA id E7A5BC43443; Tue, 3 Nov 2020 20:49:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org E7A5BC43443 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=khsieh@codeaurora.org From: Kuogee Hsieh To: dri-devel@lists.freedesktop.org, robdclark@gmail.com, sean@poorly.run, swboyd@chromium.org Subject: [PATCH 0/3] fix dp link training failed at irq_hpd request Date: Tue, 3 Nov 2020 12:48:59 -0800 Message-Id: <20201103204902.11899-1-khsieh@codeaurora.org> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 04 Nov 2020 08:22:13 +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: airlied@linux.ie, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, abhinavk@codeaurora.org, Kuogee Hsieh , tanmay@codeaurora.org, aravindh@codeaurora.org, freedreno@lists.freedesktop.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Some dongle require link training be done at irq_hpd request. This serial patches address the issues so that DP/HDMI display can be lit up properlly. This serial Patch also fixes clock stuck at "off" state error caused by previous link training failed. Kuogee Hsieh (3): drm/msm/dp: deinitialize mainlink if link training failed drm/msm/dp: skip checking LINK_STATUS_UPDATED bit drm/msm/dp: promote irq_hpd handle to handle link training correctly drivers/gpu/drm/msm/dp/dp_catalog.c | 2 +- drivers/gpu/drm/msm/dp/dp_catalog.h | 2 +- drivers/gpu/drm/msm/dp/dp_ctrl.c | 60 +++++++++++++++++++++-------- drivers/gpu/drm/msm/dp/dp_display.c | 40 ++++++++++++++++--- drivers/gpu/drm/msm/dp/dp_link.c | 29 +++++++------- drivers/gpu/drm/msm/dp/dp_panel.c | 2 +- 6 files changed, 96 insertions(+), 39 deletions(-)