From: Wayne Lin <Wayne.Lin@amd.com>
To: <dri-devel@lists.freedesktop.org>
Cc: eryk.brol@amd.com, qingqing.zhuo@amd.com, stable@vger.kernel.org,
jerry.zuo@amd.com, Wayne Lin <Wayne.Lin@amd.com>,
Nicholas.Kazlauskas@amd.com
Subject: [PATCH v2 0/2] Set CLEAR_PAYLOAD_ID_TABLE as broadcast request
Date: Wed, 24 Feb 2021 18:15:19 +0800 [thread overview]
Message-ID: <20210224101521.6713-1-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.
Changes since v1:
*Refer to the suggestion from Ville Syrjala. While preparing hdr-rad,
take broadcast case into consideration.
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 | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
--
2.17.1
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next reply other threads:[~2021-02-24 10:17 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-24 10:15 Wayne Lin [this message]
2021-02-24 10:15 ` [PATCH v2 1/2] drm/dp_mst: Revise broadcast msg lct & lcr Wayne Lin
2021-02-24 10:15 ` [PATCH v2 2/2] drm/dp_mst: Set CLEAR_PAYLOAD_ID_TABLE as broadcast Wayne Lin
2021-02-24 18:08 ` [PATCH v2 0/2] Set CLEAR_PAYLOAD_ID_TABLE as broadcast request Lyude Paul
2021-02-25 2:32 ` Lin, Wayne
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