From: Imre Deak <imre.deak@intel.com>
To: dri-devel@lists.freedesktop.org
Cc: Wayne Lin <Wayne.Lin@amd.com>
Subject: [PATCH 2/4] drm/dp_mst: Don't cache EDIDs for physical ports
Date: Mon, 1 Feb 2021 14:01:43 +0200 [thread overview]
Message-ID: <20210201120145.350258-2-imre.deak@intel.com> (raw)
In-Reply-To: <20210201120145.350258-1-imre.deak@intel.com>
Caching EDIDs for physical ports prevents updating the EDID if a port
gets reconnected via a Connection Status Notification message, fix this.
Fixes: db1a07956968 ("drm/dp_mst: Handle SST-only branch device case")
Cc: Wayne Lin <Wayne.Lin@amd.com>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
---
drivers/gpu/drm/drm_dp_mst_topology.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c
index deb7995f42fa..309afe61afdd 100644
--- a/drivers/gpu/drm/drm_dp_mst_topology.c
+++ b/drivers/gpu/drm/drm_dp_mst_topology.c
@@ -2302,7 +2302,8 @@ drm_dp_mst_port_add_connector(struct drm_dp_mst_branch *mstb,
}
if (port->pdt != DP_PEER_DEVICE_NONE &&
- drm_dp_mst_is_end_device(port->pdt, port->mcs)) {
+ drm_dp_mst_is_end_device(port->pdt, port->mcs) &&
+ port->port_num >= DP_MST_LOGICAL_PORT_0) {
port->cached_edid = drm_get_edid(port->connector,
&port->aux.ddc);
drm_connector_set_tile_property(port->connector);
--
2.25.1
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next prev parent reply other threads:[~2021-02-01 12:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-01 12:01 [PATCH 1/4] drm/dp_mst: Don't report ports connected if nothing is attached to them Imre Deak
2021-02-01 12:01 ` Imre Deak [this message]
2021-02-02 3:38 ` [PATCH 2/4] drm/dp_mst: Don't cache EDIDs for physical ports Lin, Wayne
2021-02-02 11:22 ` Imre Deak
2021-02-03 2:56 ` Lin, Wayne
2021-02-04 17:54 ` Imre Deak
2021-02-01 12:01 ` [PATCH 3/4] drm/dp_mst: Remove redundant tile property setting Imre Deak
2021-02-01 12:01 ` [PATCH 4/4] drm/dp_mst: Use DP_MST_LOGICAL_PORT_0 instead of magic number Imre Deak
2021-02-01 22:04 ` [PATCH 1/4] drm/dp_mst: Don't report ports connected if nothing is attached to them Lyude Paul
2021-02-03 21:15 ` [Intel-gfx] " Imre Deak
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