[PATCH v7 7/7] drm/i915/hotplug: avoid HPD polling if the device is PME capable

[Vinod Govindapillai <vinod.govindapillai@intel.com>]

In supported devices, HPDs can generate PME and which in turn
can invoke runtime resume calls for xe. No need to keep the
HPD polling in such PME capable devices.

v2: use intel_display_rpm_pme_enabled() directly (JaniN)

Bspec: 52979, 52980, 68857, 68867, 68970
Assisted-by: GitHub_Copilot:claude-opus-5
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
---
 drivers/gpu/drm/i915/display/intel_hotplug.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 970aa95ee344..d095eb13dc06 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -867,6 +867,11 @@ void intel_hpd_poll_enable(struct intel_display *display)
 	if (!HAS_DISPLAY(display) || !intel_display_device_enabled(display))
 		return;
 
+	if (intel_display_rpm_pme_enabled(display)) {
+		drm_dbg_kms(display->drm, "PME wake capable device, skipping HPD polling.\n");
+		return;
+	}
+
 	WRITE_ONCE(display->hotplug.poll_enabled, true);
 
 	/*
-- 
2.43.0