drm/i915/xe2lpd: Add DC state support

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Xe2_LPD supports DC5, DC6, and DC9 (DC3CO no longer exists).  The
overall programming and requirements to enter DC states are similar to
those of Xe_LPD+ although AUX transactions do not require DC5/DC6 exit
as they did previously.

Bspec: 68851, 68857, 68886, 69115
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230919192128.2045154-21-lucas.demarchi@intel.com

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This commit is contained in:

Matt Roper 2023-09-19 12:21:27 -07:00 • committed by Lucas De Marchi

parent c2d9d8e7ee

commit 43e18b0a54

2 changed files with 21 additions and 1 deletions

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4

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

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18

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

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