OMAPDSS: DSS: add a param to dpi_select_source which specifies it's port number

Add a 'port' parameter in dpi_select_source. The param tells the port
number of the DPI instance that we want to configure. We use this number
to select the overlay manager for that DPI instance.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/fbdev/omap2/dss/dss.h b/drivers/video/fbdev/omap2/dss/dss.h
index 6f346bf..b70d7df 100644
--- a/drivers/video/fbdev/omap2/dss/dss.h
+++ b/drivers/video/fbdev/omap2/dss/dss.h
@@ -209,7 +209,7 @@
 void dss_uninit_platform_driver(void);
 
 unsigned long dss_get_dispc_clk_rate(void);
-int dss_dpi_select_source(enum omap_channel channel);
+int dss_dpi_select_source(int port, enum omap_channel channel);
 void dss_select_hdmi_venc_clk_source(enum dss_hdmi_venc_clk_source_select);
 enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void);
 const char *dss_get_generic_clk_source_name(enum omap_dss_clk_source clk_src);