drm: Use a nondestructive mode for output detect when polling (v2)

v2: Julien Cristau pointed out that @nondestructive results in
double-negatives and confusion when trying to interpret the parameter,
so use @force instead. Much easier to type as well. ;-)

And fix the miscompilation of vmgfx reported by Sedat Dilek.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 0350e5d..a02a8df 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -401,8 +401,7 @@
 }
 
 static enum drm_connector_status
-intel_crt_detect(struct drm_connector *connector,
-		 bool nondestructive)
+intel_crt_detect(struct drm_connector *connector, bool force)
 {
 	struct drm_device *dev = connector->dev;
 	struct drm_encoder *encoder = intel_attached_encoder(connector);
@@ -421,7 +420,7 @@
 	if (intel_crt_detect_ddc(encoder))
 		return connector_status_connected;
 
-	if (nondestructive)
+	if (!force)
 		return connector->status;
 
 	/* for pre-945g platforms use load detect */