drm/i915: Nuke 'mode' argument to intel_get_load_detect_pipe()

We always pass mode==NULL to intel_get_load_detect_pipe(). Remove
the pointless function argument.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191029132323.18113-1-ville.syrjala@linux.intel.comReviewed-by: Jani Nikula <jani.nikula@intel.com>

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

@@ -844,7 +844,7 @@ intel_crt_detect(struct drm_connector *connector,
 	}
 
 	/* for pre-945g platforms use load detect */
-	ret = intel_get_load_detect_pipe(connector, NULL, &tmp, ctx);
+	ret = intel_get_load_detect_pipe(connector, &tmp, ctx);
 	if (ret > 0) {
 		if (intel_crt_detect_ddc(connector))
 			status = connector_status_connected;

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

@@ -11328,7 +11328,6 @@ static int intel_modeset_disable_planes(struct drm_atomic_state *state,
 }
 
 int intel_get_load_detect_pipe(struct drm_connector *connector,
-			       const struct drm_display_mode *mode,
 			       struct intel_load_detect_pipe *old,
 			       struct drm_modeset_acquire_ctx *ctx)
 {
@@ -11435,10 +11434,8 @@ int intel_get_load_detect_pipe(struct drm_connector *connector,
 
 	crtc_state->base.active = crtc_state->base.enable = true;
 
-	if (!mode)
-		mode = &load_detect_mode;
-
-	ret = drm_atomic_set_mode_for_crtc(&crtc_state->base, mode);
+	ret = drm_atomic_set_mode_for_crtc(&crtc_state->base,
+					   &load_detect_mode);
 	if (ret)
 		goto fail;
 

drivers/gpu/drm/i915/display/intel_display.h

@@ -509,7 +509,6 @@ void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
 			 struct intel_digital_port *dport,
 			 unsigned int expected_mask);
 int intel_get_load_detect_pipe(struct drm_connector *connector,
-			       const struct drm_display_mode *mode,
 			       struct intel_load_detect_pipe *old,
 			       struct drm_modeset_acquire_ctx *ctx);
 void intel_release_load_detect_pipe(struct drm_connector *connector,

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

@@ -1701,7 +1701,7 @@ intel_tv_detect(struct drm_connector *connector,
 		struct intel_load_detect_pipe tmp;
 		int ret;
 
-		ret = intel_get_load_detect_pipe(connector, NULL, &tmp, ctx);
+		ret = intel_get_load_detect_pipe(connector, &tmp, ctx);
 		if (ret < 0)
 			return ret;