video: fsl_dcu_fb: refactor init functions

Move dcu-related code to fsl_dcu_probe_common, keep in video_hw_init()
only legacy video stack (filling GraphicPanel struct etc.).

Add wrappers for all init functions, that will let to provide
struct fb_info as an additional param (needed for further moving it from
the global scope to driver private data struct in DM converted driver).

Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
diff --git a/board/freescale/ls1021aiot/dcu.c b/board/freescale/ls1021aiot/dcu.c
index 9aeee0e..77732a6 100644
--- a/board/freescale/ls1021aiot/dcu.c
+++ b/board/freescale/ls1021aiot/dcu.c
@@ -23,9 +23,10 @@
 	return div;
 }
 
-int platform_dcu_init(unsigned int xres, unsigned int yres,
-		const char *port,
-		struct fb_videomode *dcu_fb_videomode)
+int platform_dcu_init(struct fb_info *fbinfo,
+		      unsigned int xres, unsigned int yres,
+		      const char *port,
+		      struct fb_videomode *dcu_fb_videomode)
 {
 	const char *name;
 	unsigned int pixel_format;
@@ -40,7 +41,7 @@
 	printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
 
 	pixel_format = 32;
-	fsl_dcu_init(xres, yres, pixel_format);
+	fsl_dcu_init(fbinfo, xres, yres, pixel_format);
 
 	return 0;
 }
diff --git a/board/freescale/ls1021aqds/dcu.c b/board/freescale/ls1021aqds/dcu.c
index 14855ea..c4eac5e 100644
--- a/board/freescale/ls1021aqds/dcu.c
+++ b/board/freescale/ls1021aqds/dcu.c
@@ -39,7 +39,9 @@
 	return div;
 }
 
-int platform_dcu_init(unsigned int xres, unsigned int yres,
+int platform_dcu_init(struct fb_info *fbinfo,
+		      unsigned int xres,
+		      unsigned int yres,
 		      const char *port,
 		      struct fb_videomode *dcu_fb_videomode)
 {
@@ -85,7 +87,7 @@
 	printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
 
 	pixel_format = 32;
-	fsl_dcu_init(xres, yres, pixel_format);
+	fsl_dcu_init(fbinfo, xres, yres, pixel_format);
 
 	return 0;
 }
diff --git a/board/freescale/ls1021atwr/dcu.c b/board/freescale/ls1021atwr/dcu.c
index e1191f1..bdf7f76 100644
--- a/board/freescale/ls1021atwr/dcu.c
+++ b/board/freescale/ls1021atwr/dcu.c
@@ -23,7 +23,8 @@
 	return div;
 }
 
-int platform_dcu_init(unsigned int xres, unsigned int yres,
+int platform_dcu_init(struct fb_info *fbinfo,
+		      unsigned int xres, unsigned int yres,
 		      const char *port,
 		      struct fb_videomode *dcu_fb_videomode)
 {
@@ -40,7 +41,7 @@
 	printf("DCU: Switching to %s monitor @ %ux%u\n", name, xres, yres);
 
 	pixel_format = 32;
-	fsl_dcu_init(xres, yres, pixel_format);
+	fsl_dcu_init(fbinfo, xres, yres, pixel_format);
 
 	return 0;
 }