From: Arnd Bergmann <arnd@xxxxxxxx>
The fb_io_mmap() function is used in the file operations but
not enabled in all configurations unless FB_IOMEM_FOPS gets
selected:
ld.lld-20: error: undefined symbol: fb_io_mmap
>>> referenced by wm8505fb.c
>>> drivers/video/fbdev/wm8505fb.o:(wm8505fb_ops) in archive vmlinux.a
Fixes: 11754a504608 ("fbdev/wm8505fb: Initialize fb_ops to fbdev I/O-memory helpers")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/video/fbdev/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 9957dde4a3f6..961d7f5bbbc2 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -1388,6 +1388,7 @@ config FB_VT8500
config FB_WM8505
bool "Wondermedia WM8xxx-series frame buffer support"
depends on (FB = y) && HAS_IOMEM && (ARCH_VT8500 || COMPILE_TEST)
+ select FB_IOMEM_FOPS
select FB_SYS_FILLRECT if (!FB_WMT_GE_ROPS)
select FB_SYS_COPYAREA if (!FB_WMT_GE_ROPS)
select FB_SYS_IMAGEBLIT
--
2.39.5
