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authorThomas Zimmermann <tzimmermann@suse.de>2023-11-27 14:15:37 +0100
committerThomas Zimmermann <tzimmermann@suse.de>2023-11-29 12:20:21 +0100
commit36e6cacdb095e35f2389ba8829db12603133d61d (patch)
treeb31699b643d27bef67f9625056ddacba4afa843b /drivers/auxdisplay/Kconfig
parenteba1418968264cb3f83ff1ce78270ccc9a729c22 (diff)
auxdisplay/cfag12864bfb: Initialize fb_ops with fbdev macros
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in virtual address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default I/O-memory-based 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. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-9-tzimmermann@suse.de
Diffstat (limited to 'drivers/auxdisplay/Kconfig')
-rw-r--r--drivers/auxdisplay/Kconfig5
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig
index 64012cda4d12..4377e53f8f57 100644
--- a/drivers/auxdisplay/Kconfig
+++ b/drivers/auxdisplay/Kconfig
@@ -112,10 +112,7 @@ config CFAG12864B
depends on X86
depends on FB
depends on KS0108
- select FB_SYS_FILLRECT
- select FB_SYS_COPYAREA
- select FB_SYS_IMAGEBLIT
- select FB_SYS_FOPS
+ select FB_SYSMEM_HELPERS
default n
help
If you have a Crystalfontz 128x64 2-color LCD, cfag12864b Series,