drm/i915/intel_dip: Add check for DP encoder

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At the moment, the common register for programming Transmission line for
Extended Metadata Packet and Adaptive-Sync Secondary Data Packet
(EMP_AS_SDP_TL) is only used to program Adaptive-Sync SDP (AS SDP).

Since VRR and Video Timing Extended Metadat Packet (VTEMP) are not yet
implemented for HDMI, add an explicit check to write the register only
for DP encoders (that may use AS SDP) and reset the register for non-DP
encoders.

In subsequent changes, instead of directly writing the value,
appropriate helpers will be called, that will supply the transmission line
for these packets.

Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260915164657.3429075-4-ankit.k.nautiyal@intel.com

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This commit is contained in:

Ankit Nautiyal 2026-09-15 22:16:44 +05:30

parent 7310befb05

commit c23ee65d20

1 changed files with 8 additions and 3 deletions

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drivers/gpu/drm/i915/display/intel_dip.c

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