fbdev/leo: 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/20230806120926.5368-10-tzimmermann@suse.de

drivers/video/fbdev/Kconfig

@@ -587,9 +587,7 @@ config FB_P9100
 config FB_LEO
 	bool "Leo (ZX) 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 SBUS-based Sun ZX
 	  (leo) frame buffer cards.

drivers/video/fbdev/leo.c

@@ -30,28 +30,21 @@
 static int leo_setcolreg(unsigned, unsigned, unsigned, unsigned,
 			 unsigned, struct fb_info *);
 static int leo_blank(int, struct fb_info *);
-
-static int leo_mmap(struct fb_info *, struct vm_area_struct *);
-static int leo_ioctl(struct fb_info *, unsigned int, unsigned long);
 static int leo_pan_display(struct fb_var_screeninfo *, struct fb_info *);
 
+static int leo_sbusfb_mmap(struct fb_info *info, struct vm_area_struct *vma);
+static int leo_sbusfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg);
+
 /*
  *  Frame buffer operations
  */
 
 static const struct fb_ops leo_ops = {
 	.owner			= THIS_MODULE,
+	FB_DEFAULT_SBUS_OPS(leo),
 	.fb_setcolreg		= leo_setcolreg,
 	.fb_blank		= leo_blank,
 	.fb_pan_display		= leo_pan_display,
-	.fb_fillrect		= cfb_fillrect,
-	.fb_copyarea		= cfb_copyarea,
-	.fb_imageblit		= cfb_imageblit,
-	.fb_mmap		= leo_mmap,
-	.fb_ioctl		= leo_ioctl,
-#ifdef CONFIG_COMPAT
-	.fb_compat_ioctl	= sbusfb_compat_ioctl,
-#endif
 };
 
 #define LEO_OFF_LC_SS0_KRN	0x00200000UL
@@ -413,7 +406,7 @@ static struct sbus_mmap_map leo_mmap_map[] = {
 	{ .size = 0 }
 };
 
-static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma)
+static int leo_sbusfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 {
 	struct leo_par *par = (struct leo_par *)info->par;
 
@@ -422,7 +415,7 @@ static int leo_mmap(struct fb_info *info, struct vm_area_struct *vma)
 				  par->which_io, vma);
 }
 
-static int leo_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
+static int leo_sbusfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 {
 	return sbusfb_ioctl_helper(cmd, arg, info,
 				   FBTYPE_SUNLEO, 32, info->fix.smem_len);