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/imsttfb.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index e42439cfb1a1d..46f761ffa13c9 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -356,6 +356,7 @@ config FB_IMSTT bool "IMS Twin Turbo display support" depends on (FB = y) && PCI select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS select FB_MACMODES if PPC_PMAC select VIDEO_NOMODESET help diff --git a/drivers/video/fbdev/imsttfb.c b/drivers/video/fbdev/imsttfb.c index f4c8677488fb8..e7e03e920729d 100644 --- a/drivers/video/fbdev/imsttfb.c +++ b/drivers/video/fbdev/imsttfb.c @@ -1336,6 +1336,7 @@ static struct pci_driver imsttfb_pci_driver = { static const struct fb_ops imsttfb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = imsttfb_check_var, .fb_set_par = imsttfb_set_par, .fb_setcolreg = imsttfb_setcolreg, @@ -1345,6 +1346,7 @@ static const struct fb_ops imsttfb_ops = { .fb_copyarea = imsttfb_copyarea, .fb_imageblit = cfb_imageblit, .fb_ioctl = imsttfb_ioctl, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static int init_imstt(struct fb_info *info) -- 2.42.0
