drm/i915: Remove dead code from intel_get_load_detect_pipe()

As we only allow the use of a disabled CRTC, we don't need to handle the
case where we are reusing an already enabled pipe.
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>

drivers/gpu/drm/i915/intel_display.c

@@ -5491,8 +5491,6 @@ bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 	struct drm_encoder *encoder = &intel_encoder->base;
 	struct drm_crtc *crtc = NULL;
 	struct drm_device *dev = encoder->dev;
-	struct drm_encoder_helper_funcs *encoder_funcs = encoder->helper_private;
-	struct drm_crtc_helper_funcs *crtc_funcs;
 	int i = -1;
 
 	/*
@@ -5515,8 +5513,13 @@ bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 
 		/* Make sure the crtc and connector are running */
 		if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) {
+			struct drm_encoder_helper_funcs *encoder_funcs;
+			struct drm_crtc_helper_funcs *crtc_funcs;
+
 			crtc_funcs = crtc->helper_private;
 			crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+
+			encoder_funcs = encoder->helper_private;
 			encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
 		}
 
@@ -5549,7 +5552,6 @@ bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 	old->dpms_mode = intel_crtc->dpms_mode;
 	old->load_detect_temp = true;
 
-	if (!crtc->enabled) {
 	if (!mode)
 		mode = &load_detect_mode;
 
@@ -5557,16 +5559,6 @@ bool intel_get_load_detect_pipe(struct intel_encoder *intel_encoder,
 		DRM_DEBUG_KMS("failed to set mode on load-detect pipe\n");
 		return false;
 	}
-	} else {
-		if (intel_crtc->dpms_mode != DRM_MODE_DPMS_ON) {
-			crtc_funcs = crtc->helper_private;
-			crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
-		}
-
-		/* Add this connector to the crtc */
-		encoder_funcs->mode_set(encoder, &crtc->mode, &crtc->hwmode);
-		encoder_funcs->commit(encoder);
-	}
 
 	/* let the connector get through one full cycle before testing */
 	intel_wait_for_vblank(dev, intel_crtc->pipe);