Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer
for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions.
Select the correct modules with Kconfig's FB_IOMEM_HELPERS token.
The macro and token set the currently selected values, so there is
no functional change.
v3:
	* use _IOMEM_ in commit message
v2:
	* updated to use _IOMEM_ tokens
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230803184034.6456-4-tzimmermann@suse.de
 config FB_ASILIANT
        bool "Asiliant (Chips) 69000 display support"
        depends on (FB = y) && PCI
-       select FB_CFB_FILLRECT
-       select FB_CFB_COPYAREA
-       select FB_CFB_IMAGEBLIT
+       select FB_IOMEM_HELPERS
        select VIDEO_NOMODESET
        help
          This is the frame buffer device driver for the Asiliant 69030 chipset
 
 
 static const struct fb_ops asiliantfb_ops = {
        .owner          = THIS_MODULE,
+       FB_DEFAULT_IOMEM_OPS,
        .fb_check_var   = asiliantfb_check_var,
        .fb_set_par     = asiliantfb_set_par,
        .fb_setcolreg   = asiliantfb_setcolreg,
-       .fb_fillrect    = cfb_fillrect,
-       .fb_copyarea    = cfb_copyarea,
-       .fb_imageblit   = cfb_imageblit,
 };
 
 /* Calculate the ratios for the dot clocks without using a single long long