drm/i915/adl_p: Add PCH support

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Add ADP-P PCH device ID and assign as ADL PCH if found. Previously we
would assign the DDC pin map based on the PCH, but it can also change
based on the CPU. From Bspec 20124: "The physical port to pin pair
mapping are defined in the Bspec per PCH. Mapping can further change
based on CPU Si used as CPU and PCH can be mixed and matched".

Bspec: 20124
Cc: Matt Atwood <matthew.s.atwood@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210512042144.2089071-7-matthew.d.roper@intel.com

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Clinton Taylor 2021-05-11 21:21:43 -07:00 • committed by Matt Roper

parent 0e53fb847c

commit 83c81a0a16

4 changed files with 7 additions and 4 deletions

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2

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

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2

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

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6

drivers/gpu/drm/i915/intel_pch.c

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1

drivers/gpu/drm/i915/intel_pch.h

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