[Intel-gfx] [PATCH v3 2/3] drm/i915: Do not start connector polling if display is disabled

[Jouni Högander]

Currently we are starting connector polling if display is disabled
using disable_display module parameter. Polling is just returning
always "not connected" state. This can be optimized by not starting
polling at all.

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
Reviewed-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/display/intel_hotplug.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c
index 8204126d17f9..5f8b4f481cff 100644
--- a/drivers/gpu/drm/i915/display/intel_hotplug.c
+++ b/drivers/gpu/drm/i915/display/intel_hotplug.c
@@ -668,7 +668,8 @@ static void i915_hpd_poll_init_work(struct work_struct *work)
  */
 void intel_hpd_poll_enable(struct drm_i915_private *dev_priv)
 {
-	if (!HAS_DISPLAY(dev_priv))
+	if (!HAS_DISPLAY(dev_priv) ||
+	    !INTEL_DISPLAY_ENABLED(dev_priv))
 		return;
 
 	WRITE_ONCE(dev_priv->hotplug.poll_enabled, true);
-- 
2.25.1