drm/i915/mtl: Reset only one lane in case of MFD

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In case when only two or less transmit lanes are owned such as MFD
(DP-alt with x2 lanes) we need to reset only one data lane (lane0).
With only x2 lanes we don't need to poll for the phy current
status on both data lanes since only the owned data lane will respond.

v2: Find better naming for lanes and revise the commit message (Luca)

Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com> (v1)
Signed-off-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Luca Coelho <luciano.coelho@intel.com> (v2)
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230601101314.332392-1-mika.kahola@intel.com

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Mika Kahola 2023-06-01 13:13:14 +03:00 • committed by Jouni Högander

parent b29a20f7c4

commit 619a06dba6

1 changed files with 23 additions and 16 deletions

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drivers/gpu/drm/i915/display/intel_cx0_phy.c

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