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/cobalt_lcdfb.c | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 06d20787da8b8..5f8ba796aa382 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1752,6 +1752,7 @@ config FB_GOLDFISH config FB_COBALT tristate "Cobalt server LCD frame buffer support" depends on FB && MIPS_COBALT + select FB_IOMEM_HELPERS config FB_SH7760 bool "SH7760/SH7763/SH7720/SH7721 LCDC support" diff --git a/drivers/video/fbdev/cobalt_lcdfb.c b/drivers/video/fbdev/cobalt_lcdfb.c index b94e7c97264cb..c2b8f894799ca 100644 --- a/drivers/video/fbdev/cobalt_lcdfb.c +++ b/drivers/video/fbdev/cobalt_lcdfb.c @@ -280,7 +280,9 @@ static const struct fb_ops cobalt_lcd_fbops = { .fb_read = cobalt_lcdfb_read, .fb_write = cobalt_lcdfb_write, .fb_blank = cobalt_lcdfb_blank, + __FB_DEFAULT_IOMEM_OPS_DRAW, .fb_cursor = cobalt_lcdfb_cursor, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static int cobalt_lcdfb_probe(struct platform_device *dev) -- 2.42.0
