STM32LTDC: Handle gOrientationPortrait and gOrientationLandscape explicitly although not supporting it

drivers/gdisp/STM32LTDC/gdisp_lld_STM32LTDC.c

@@ -301,6 +301,8 @@ LLDSPEC void gdisp_lld_draw_pixel(GDisplay* g) {
 
 	#if GDISP_NEED_CONTROL
 		switch(g->g.Orientation) {
+                case gOrientationPortrait:
+                case gOrientationLandscape:
 		case gOrientation0:
 		default:
 			pos = PIXEL_POS(g, g->p.x, g->p.y);
@@ -339,6 +341,8 @@ LLDSPEC	gColor gdisp_lld_get_pixel_color(GDisplay* g) {
 
 	#if GDISP_NEED_CONTROL
 		switch(g->g.Orientation) {
+                case gOrientationPortrait:
+                case gOrientationLandscape:
 		case gOrientation0:
 		default:
 			pos = PIXEL_POS(g, g->p.x, g->p.y);
@@ -400,6 +404,8 @@ LLDSPEC	gColor gdisp_lld_get_pixel_color(GDisplay* g) {
 						g->g.Height = tmp;
 					}
 					break;
+                                case gOrientationPortrait:
+                                case gOrientationLandscape:
 				default:
 					return;
 			}
@@ -474,6 +480,8 @@ LLDSPEC	gColor gdisp_lld_get_pixel_color(GDisplay* g) {
 
 		#if GDISP_NEED_CONTROL
 			switch(g->g.Orientation) {
+                        case gOrientationPortrait:
+                        case gOrientationLandscape:
 			case gOrientation0:
 			default:
 				pos = PIXEL_POS(g, g->p.x, g->p.y);

drivers/gdisp/STM32LTDC/readme.md

@@ -12,6 +12,10 @@ To use this driver:
 
 3. Add a `board_STM32LTDC.h` to you project directory (or board directory)
 	based on one of the templates.
+
+# Limitations
+Currently, both `gOrientationPortrait` and `gOrientationLandscape` are not supported by this driver.
+
 	
 # Configuration
 Configuration options available in `gfxconf.h`: