From: Wayne Lin <Wayne.Lin@amd.com>
To: <dri-devel@lists.freedesktop.org>
Cc: <lyude@redhat.com>, <stable@vger.kernel.org>,
<Nicholas.Kazlauskas@amd.com>, <harry.wentland@amd.com>,
<jerry.zuo@amd.com>, <eryk.brol@amd.com>, <qingqing.zhuo@amd.com>,
Wayne Lin <Wayne.Lin@amd.com>
Subject: [PATCH 0/2] Set CLEAR_PAYLOAD_ID_TABLE as broadcast request
Date: Mon, 22 Feb 2021 12:00:25 +0800 [thread overview]
Message-ID: <20210222040027.23505-1-Wayne.Lin@amd.com> (raw)
While testing MST hotplug events on daisy chain monitors, find out
that CLEAR_PAYLOAD_ID_TABLE is not broadcasted and payload id table
is not reset. Dig in deeper and find out two parts needed to be fixed.
1. Link_Count_Total & Link_Count_Remaining of Broadcast message are
incorrect. Should set lct=1 & lcr=6
2. CLEAR_PAYLOAD_ID_TABLE request message is not set as path broadcast
request message. Should fix this.
Wayne Lin (2):
drm/dp_mst: Revise broadcast msg lct & lcr
drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast
drivers/gpu/drm/drm_dp_mst_topology.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
--
2.17.1
next reply other threads:[~2021-02-22 4:03 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-22 4:00 Wayne Lin [this message]
2021-02-22 4:00 ` [PATCH 1/2] drm/dp_mst: Revise broadcast msg lct & lcr Wayne Lin
2021-02-22 17:02 ` Ville Syrjälä
2021-02-22 17:09 ` Ville Syrjälä
2021-02-23 5:32 ` Lin, Wayne
2021-02-23 13:26 ` Ville Syrjälä
2021-02-24 9:47 ` Lin, Wayne
2021-02-22 4:00 ` [PATCH 2/2] drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast Wayne Lin
2021-02-22 17:00 ` Ville Syrjälä
2021-02-23 5:32 ` Lin, Wayne
2021-02-23 13:21 ` Ville Syrjälä
2021-02-24 18:06 ` [PATCH 0/2] Set CLEAR_PAYLOAD_ID_TABLE as broadcast request Lyude Paul
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