Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig.
Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by: Thomas Zimmermann <[email protected]> Cc: Benjamin Herrenschmidt <[email protected]> --- drivers/video/fbdev/Kconfig | 3 ++- drivers/video/fbdev/aty/radeon_base.c | 2 ++ 2 files changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 4d20c4523b83a..74c623f2751dd 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1025,11 +1025,12 @@ config FB_RADEON tristate "ATI Radeon display support" depends on FB && PCI select FB_BACKLIGHT if FB_RADEON_BACKLIGHT - select FB_MODE_HELPERS select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS select FB_MACMODES if PPC + select FB_MODE_HELPERS select VIDEO_NOMODESET help Choose this option if you want to use an ATI Radeon graphics card as diff --git a/drivers/video/fbdev/aty/radeon_base.c b/drivers/video/fbdev/aty/radeon_base.c index 93fd1773402c5..36bfb6deb8abd 100644 --- a/drivers/video/fbdev/aty/radeon_base.c +++ b/drivers/video/fbdev/aty/radeon_base.c @@ -1952,6 +1952,7 @@ static int radeonfb_set_par(struct fb_info *info) static const struct fb_ops radeonfb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = radeonfb_check_var, .fb_set_par = radeonfb_set_par, .fb_setcolreg = radeonfb_setcolreg, @@ -1963,6 +1964,7 @@ static const struct fb_ops radeonfb_ops = { .fb_fillrect = radeonfb_fillrect, .fb_copyarea = radeonfb_copyarea, .fb_imageblit = radeonfb_imageblit, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; -- 2.42.0
