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]> --- drivers/video/fbdev/Kconfig | 1 + drivers/video/fbdev/vt8623fb.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index dab0e49a66d20..20e0167bf20c9 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1359,6 +1359,7 @@ config FB_VT8623 select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS select FB_TILEBLITTING select FB_SVGALIB select VGASTATE diff --git a/drivers/video/fbdev/vt8623fb.c b/drivers/video/fbdev/vt8623fb.c index 034333ee6e455..f8d022cb61e8d 100644 --- a/drivers/video/fbdev/vt8623fb.c +++ b/drivers/video/fbdev/vt8623fb.c @@ -644,6 +644,7 @@ static const struct fb_ops vt8623fb_ops = { .owner = THIS_MODULE, .fb_open = vt8623fb_open, .fb_release = vt8623fb_release, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = vt8623fb_check_var, .fb_set_par = vt8623fb_set_par, .fb_setcolreg = vt8623fb_setcolreg, @@ -652,6 +653,7 @@ static const struct fb_ops vt8623fb_ops = { .fb_fillrect = vt8623fb_fillrect, .fb_copyarea = cfb_copyarea, .fb_imageblit = vt8623fb_imageblit, + __FB_DEFAULT_IOMEM_OPS_MMAP, .fb_get_caps = svga_get_caps, }; -- 2.42.0
