fbdev/cg14: Use initializer macro for struct fb_ops

Initialize struct fb_ops to the correct default values with the
macro FB_DEFAULT_SBUS_OPS(). Rename the ioctl and mmap callbacks
to use the infix _sbusfb_. This makes them fit the SBUS helpers'
naming pattern. Also make the driver depend on FB_SBUS_HELPERS,
which selects the correct modules.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230806120926.5368-6-tzimmermann@suse.de

drivers/video/fbdev/Kconfig

@@ -571,9 +571,7 @@ config FB_TCX
 config FB_CG14
 	bool "CGfourteen (SX) support"
 	depends on FB_SBUS
-	select FB_CFB_FILLRECT
-	select FB_CFB_COPYAREA
-	select FB_CFB_IMAGEBLIT
+	select FB_SBUS_HELPERS
 	help
 	  This is the frame buffer device driver for the CGfourteen frame
 	  buffer on Desktop SPARCsystems with the SX graphics option.

drivers/video/fbdev/cg14.c

@@ -30,27 +30,20 @@
 
 static int cg14_setcolreg(unsigned, unsigned, unsigned, unsigned,
 			 unsigned, struct fb_info *);
-
-static int cg14_mmap(struct fb_info *, struct vm_area_struct *);
-static int cg14_ioctl(struct fb_info *, unsigned int, unsigned long);
 static int cg14_pan_display(struct fb_var_screeninfo *, struct fb_info *);
 
+static int cg14_sbusfb_mmap(struct fb_info *info, struct vm_area_struct *vma);
+static int cg14_sbusfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg);
+
 /*
  *  Frame buffer operations
  */
 
 static const struct fb_ops cg14_ops = {
 	.owner			= THIS_MODULE,
+	FB_DEFAULT_SBUS_OPS(cg14),
 	.fb_setcolreg		= cg14_setcolreg,
 	.fb_pan_display		= cg14_pan_display,
-	.fb_fillrect		= cfb_fillrect,
-	.fb_copyarea		= cfb_copyarea,
-	.fb_imageblit		= cfb_imageblit,
-	.fb_mmap		= cg14_mmap,
-	.fb_ioctl		= cg14_ioctl,
-#ifdef CONFIG_COMPAT
-	.fb_compat_ioctl	= sbusfb_compat_ioctl,
-#endif
 };
 
 #define CG14_MCR_INTENABLE_SHIFT	7
@@ -264,7 +257,7 @@ static int cg14_setcolreg(unsigned regno,
 	return 0;
 }
 
-static int cg14_mmap(struct fb_info *info, struct vm_area_struct *vma)
+static int cg14_sbusfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct cg14_par *par = (struct cg14_par *) info->par;
 
@@ -273,7 +266,7 @@ static int cg14_mmap(struct fb_info *info, struct vm_area_struct *vma)
 				  par->iospace, vma);
 }
 
-static int cg14_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
+static int cg14_sbusfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 {
 	struct cg14_par *par = (struct cg14_par *) info->par;
 	struct cg14_regs __iomem *regs = par->regs;