drm/xe: Suspend/resume user access only during system s/r

Enable/Disable user access only during system suspend/resume.
This should not happen during runtime s/r

v2: rebased
Reviewed-by: Arun R Murthy <arun.r.murthy@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Vinod Govindapillai <vinod.govindapillai@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240823112148.327015-2-vinod.govindapillai@intel.com

drivers/gpu/drm/xe/display/xe_display.c

@@ -323,6 +323,7 @@ void xe_display_pm_suspend(struct xe_device *xe, bool runtime)
 	intel_fbdev_set_suspend(&xe->drm, FBINFO_STATE_SUSPENDED, true);
 	if (has_display(xe)) {
 		drm_kms_helper_poll_disable(&xe->drm);
+		if (!runtime)
 			intel_display_driver_disable_user_access(xe);
 	}
 
@@ -335,7 +336,7 @@ void xe_display_pm_suspend(struct xe_device *xe, bool runtime)
 
 	intel_hpd_cancel_work(xe);
 
-	if (has_display(xe))
+	if (!runtime && has_display(xe))
 		intel_display_driver_suspend_access(xe);
 
 	intel_encoder_suspend_all(&xe->display);
@@ -381,7 +382,7 @@ void xe_display_pm_resume(struct xe_device *xe, bool runtime)
 	intel_display_driver_init_hw(xe);
 	intel_hpd_init(xe);
 
-	if (has_display(xe))
+	if (!runtime && has_display(xe))
 		intel_display_driver_resume_access(xe);
 
 	/* MST sideband requires HPD interrupts enabled */
@@ -391,6 +392,7 @@ void xe_display_pm_resume(struct xe_device *xe, bool runtime)
 
 	if (has_display(xe)) {
 		drm_kms_helper_poll_enable(&xe->drm);
+		if (!runtime)
 			intel_display_driver_enable_user_access(xe);
 	}
 	intel_hpd_poll_disable(xe);