drm/i915/irq: conditional HPD IRQ resets based on PME capability

Browse source

If a device supports generating PME from HPDs, resetting HPD IRQs
will be counter productive as HPDs itself will be lost. During
suspend routines, all the IRQs are reset. So if the device is
capable of generating PME rom HPDs, keep the HPD related IRQs from
reset based on the PME capability of the device on a target power
state. PME capability will be assessed and updated separately.

v2: change keep_hpd to reset_hpd

v3: use intel_display_rpm_pme_enabled() directly (JaniN)

v4: remove the unused include file from the previous revision

Bspec: 52979, 52980, 68857, 68867, 68970
Assisted-by: GitHub_Copilot:claude-opus-5
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://patch.msgid.link/20260915092518.639448-5-vinod.govindapillai@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

...

This commit is contained in:

Vinod Govindapillai 2026-09-15 12:25:16 +03:00 • committed by Rodrigo Vivi

parent e468a2117f

commit 56aa1f0f94

No known key found for this signature in database

GPG key ID: FA625F640EEB13CA

1 changed files with 11 additions and 7 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

18

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

View file