drm/i915/ehl: Implement W/A 22010492432

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As per W/A implemented for TGL to program half of the nominal
DCO divider fraction value which is also applicable on EHL.

Changes since V2:
	- Apply stepping B0 till FOREVER
	- B0 - revid update as per Bspec 29153
Changes since V1:
        - ehl_ used as to keep earliest platform prefix
        - WA required B0 stepping onwards

Cc: Deak Imre <imre.deak@intel.com>
Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201104050655.171185-1-tejaskumarx.surendrakumar.upadhyay@intel.com

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Tejas Upadhyay 2020-11-04 10:36:55 +05:30 • committed by José Roberto de Souza

parent 66186acbd9

commit fcc6aa8f3e

2 changed files with 9 additions and 5 deletions

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13

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

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1

drivers/gpu/drm/i915/i915_drv.h

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