drm/msm/dp: remove dp_display_en/disable prototypes and data argument

Remove unused dp_display_en/disable prototypes. While we are at it,
remove extra 'data' argument that is unused.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/490104/
Link: https://lore.kernel.org/r/20220617232434.1139950-3-dmitry.baryshkov@linaro.orgSigned-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/dp/dp_display.c

@@ -618,9 +618,6 @@ static int dp_hpd_plug_handle(struct dp_display_private *dp, u32 data)
 	return 0;
 };
 
-static int dp_display_enable(struct dp_display_private *dp, bool force_link_train);
-static int dp_display_disable(struct dp_display_private *dp, u32 data);
-
 static void dp_display_handle_plugged_change(struct msm_dp *dp_display,
 		bool plugged)
 {
@@ -904,7 +901,7 @@ static int dp_display_post_enable(struct msm_dp *dp_display)
 	return 0;
 }
 
-static int dp_display_disable(struct dp_display_private *dp, u32 data)
+static int dp_display_disable(struct dp_display_private *dp)
 {
 	struct msm_dp *dp_display = &dp->dp_display;
 
@@ -1684,7 +1681,7 @@ void dp_bridge_enable(struct drm_bridge *drm_bridge)
 	rc = dp_display_post_enable(dp);
 	if (rc) {
 		DRM_ERROR("DP display post enable failed, rc=%d\n", rc);
-		dp_display_disable(dp_display, 0);
+		dp_display_disable(dp_display);
 	}
 
 	/* completed connection */
@@ -1725,7 +1722,7 @@ void dp_bridge_post_disable(struct drm_bridge *drm_bridge)
 		return;
 	}
 
-	dp_display_disable(dp_display, 0);
+	dp_display_disable(dp_display);
 
 	state =  dp_display->hpd_state;
 	if (state == ST_DISCONNECT_PENDING) {