drm/i915/pps: Let calling intel_pps_vdd_{on, off}_unlocked() w/o PPS …

…lock held

After a follow-up change on non-eDP outputs
intel_pps_vdd_{on,off}_unlocked() can be called without the PPS lock
held, allow for this.

Suggested-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250324180145.142884-2-imre.deak@intel.com

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

@@ -744,11 +744,11 @@ bool intel_pps_vdd_on_unlocked(struct intel_dp *intel_dp)
 	i915_reg_t pp_stat_reg, pp_ctrl_reg;
 	bool need_to_disable = !intel_dp->pps.want_panel_vdd;
 
-	lockdep_assert_held(&display->pps.mutex);
-
 	if (!intel_dp_is_edp(intel_dp))
 		return false;
 
+	lockdep_assert_held(&display->pps.mutex);
+
 	cancel_delayed_work(&intel_dp->pps.panel_vdd_work);
 	intel_dp->pps.want_panel_vdd = true;
 
@@ -925,11 +925,11 @@ void intel_pps_vdd_off_unlocked(struct intel_dp *intel_dp, bool sync)
 {
 	struct intel_display *display = to_intel_display(intel_dp);
 
-	lockdep_assert_held(&display->pps.mutex);
-
 	if (!intel_dp_is_edp(intel_dp))
 		return;
 
+	lockdep_assert_held(&display->pps.mutex);
+
 	INTEL_DISPLAY_STATE_WARN(display, !intel_dp->pps.want_panel_vdd,
 				 "[ENCODER:%d:%s] %s VDD not forced on",
 				 dp_to_dig_port(intel_dp)->base.base.base.id,