drm/i915/psr: Block PKG C-State when enabling PSR

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Block PKG C-State when enabling PSR when enabling PSR as described in
workaround for underrun on idle PSR HW issue (Wa_16025596647).

v2: use intel_dmc_block_pkgc instead of directly writing dmc register

Bspec: 74151
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Mika Kahola <mika.kahola@intel.com>
Link: https://lore.kernel.org/r/20250414100508.1208774-7-jouni.hogander@intel.com

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Jouni Högander 2025-04-14 13:05:01 +03:00

parent 973deeada0

commit 0de99007c7

1 changed files with 13 additions and 0 deletions

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

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