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fbdev: Add initializer macros for struct fb_ops
For framebuffers in I/O and system memory, add macros that set struct fb_ops to the respective callback functions. For deferred I/O, add macros that generate callback functions with damage handling. Add initializer macros that set struct fb_ops to the generated callbacks. These macros can remove a lot boilerplate code from fbdev drivers. The drivers are supposed to use the macro that is required for its framebuffer. Each macro is split into smaller helpers, so that drivers with non-standard callbacks can pick and customize callbacks as needed. There are individual helper macros for read/write, mmap and drawing. v5: * fix whitespace errors (Jingfeng) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-3-tzimmermann@suse.de
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Thomas Zimmermann
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Jun 1, 2023
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