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firmware: sysfb: Add sysfb_disable() helper function

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This can be used by subsystems to unregister a platform device registered
by sysfb and also to disable future platform device registration in sysfb.

Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20220607182338.344270-3-javierm@redhat.com
This commit is contained in:
Javier Martinez Canillas
2022-06-07 20:23:35 +02:00
parent 9e121040e5
commit bde376e9de
3 changed files with 66 additions and 6 deletions
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12
include/linux/sysfb.h
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@@ -55,6 +55,18 @@ struct efifb_dmi_info {
int flags;
};
#ifdef CONFIG_SYSFB
void sysfb_disable(void);
#else /* CONFIG_SYSFB */
static inline void sysfb_disable(void)
{
}
#endif /* CONFIG_SYSFB */
#ifdef CONFIG_EFI
extern struct efifb_dmi_info efifb_dmi_list[];