drm/i915: Don't store temporary load-detect variables in the generic encoder

Keep all the state required for undoing and restoring the previous pipe
configuration together in a single struct passed from
intel_get_load_detect_pipe() to intel_release_load_detect_pipe() rather
than stuffing them inside the common encoder structure.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Keith Packard <keithp@keithp.com>
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index 2eb60cd..e93f93c 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -430,7 +430,6 @@
 	struct drm_device *dev = connector->dev;
 	struct intel_crt *crt = intel_attached_crt(connector);
 	struct drm_crtc *crtc;
-	int dpms_mode;
 	enum drm_connector_status status;
 
 	if (I915_HAS_HOTPLUG(dev)) {
@@ -454,14 +453,16 @@
 	if (crtc && crtc->enabled) {
 		status = intel_crt_load_detect(crt);
 	} else {
-		if (intel_get_load_detect_pipe(&crt->base, connector,
-					       NULL, &dpms_mode)) {
+		struct intel_load_detect_pipe tmp;
+
+		if (intel_get_load_detect_pipe(&crt->base, connector, NULL,
+					       &tmp)) {
 			if (intel_crt_detect_ddc(connector))
 				status = connector_status_connected;
 			else
 				status = intel_crt_load_detect(crt);
-			intel_release_load_detect_pipe(&crt->base,
-						       connector, dpms_mode);
+			intel_release_load_detect_pipe(&crt->base, connector,
+						       &tmp);
 		} else
 			status = connector_status_unknown;
 	}