e3q: Fix display issues on power on

Change-Id: Ia7ddf95d08b1ed25a7197d0f2109a944ab96a55f

qcom/opensource/display-drivers/msm/dsi/dsi_panel.c

@@ -4641,6 +4641,10 @@ int dsi_panel_pre_prepare(struct dsi_panel *panel)
 
 	mutex_lock(&panel->panel_lock);
 
+#if IS_ENABLED(CONFIG_DISPLAY_SAMSUNG)
+	ss_panel_power_on_pre_lp11(panel->panel_private);
+#endif
+
 	/* If LP11_INIT is set, panel will be powered up during prepare() */
 	if (panel->lp11_init)
 		goto error;

qcom/opensource/display-drivers/msm/sde/sde_encoder_dce.h

@@ -43,4 +43,8 @@ void sde_encoder_dce_flush(struct sde_encoder_virt *sde_enc);
  */
 bool sde_encoder_has_dsc_hw_rev_2(struct sde_encoder_virt *sde_enc);
 
+#if IS_ENABLED(CONFIG_DISPLAY_SAMSUNG)
+int sde_encoder_is_dsc_enabled(struct sde_encoder_virt *sde_enc);
+#endif
+
 #endif /* __SDE_ENCODER_DCE_H__ */