drm/dp_tunnel: Add UHBR tunneling support

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Add the DPCD registers and detection required to support UHBR link rates
over Thunderbolt tunnels.

Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260714152700.555527-2-imre.deak@intel.com

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This commit is contained in:

Imre Deak 2026-07-14 18:26:55 +03:00

parent 7d594b24c9

commit b0b6d44646

3 changed files with 148 additions and 1 deletions

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116

drivers/gpu/drm/display/drm_dp_tunnel.c

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12

include/drm/display/drm_dp.h

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21

include/drm/display/drm_dp_tunnel.h

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