OMAP: DSS2: DISPC: rename manager related funcs

Rename dispc's manager related functions as follows:

- Remove prepending underscores, which were originally used to inform
  that the clocks needs to be enabled. This meaning is no longer valid.
- Prepend the functions with dispc_mgr_*
- Remove "channel" from the name, e.g. dispc_enable_channel ->
  dispc_mgr_enable

The idea is to group manager related functions so that it can be deduced
from the function name that it writes to manager spesific registers.

All dispc_mgr_* functions have enum omap_channel as the first parameter.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/rfbi.c b/drivers/video/omap2/dss/rfbi.c
index b605066..b4a131a 100644
--- a/drivers/video/omap2/dss/rfbi.c
+++ b/drivers/video/omap2/dss/rfbi.c
@@ -309,9 +309,9 @@
 
 	DSSDBG("rfbi_transfer_area %dx%d\n", width, height);
 
-	dispc_set_lcd_size(dssdev->manager->id, width, height);
+	dispc_mgr_set_lcd_size(dssdev->manager->id, width, height);
 
-	dispc_enable_channel(dssdev->manager->id, true);
+	dispc_mgr_enable(dssdev->manager->id, true);
 
 	rfbi.framedone_callback = callback;
 	rfbi.framedone_callback_data = data;
@@ -784,7 +784,7 @@
 		return -EINVAL;
 
 	dss_setup_partial_planes(dssdev, x, y, w, h, true);
-	dispc_set_lcd_size(dssdev->manager->id, *w, *h);
+	dispc_mgr_set_lcd_size(dssdev->manager->id, *w, *h);
 
 	return 0;
 }
@@ -865,13 +865,13 @@
 		goto err1;
 	}
 
-	dispc_set_lcd_display_type(dssdev->manager->id,
+	dispc_mgr_set_lcd_display_type(dssdev->manager->id,
 			OMAP_DSS_LCD_DISPLAY_TFT);
 
-	dispc_set_parallel_interface_mode(dssdev->manager->id,
+	dispc_mgr_set_parallel_interface_mode(dssdev->manager->id,
 			OMAP_DSS_PARALLELMODE_RFBI);
 
-	dispc_set_tft_data_lines(dssdev->manager->id, dssdev->ctrl.pixel_size);
+	dispc_mgr_set_tft_data_lines(dssdev->manager->id, dssdev->ctrl.pixel_size);
 
 	rfbi_configure(dssdev->phy.rfbi.channel,
 			       dssdev->ctrl.pixel_size,