diff options
Diffstat (limited to 'drivers/firmware/sysfb.c')
| -rw-r--r-- | drivers/firmware/sysfb.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/firmware/sysfb.c b/drivers/firmware/sysfb.c index 02a07d3d0d40..770e74be14f3 100644 --- a/drivers/firmware/sysfb.c +++ b/drivers/firmware/sysfb.c @@ -77,6 +77,25 @@ void sysfb_disable(struct device *dev) } EXPORT_SYMBOL_GPL(sysfb_disable); +/** + * sysfb_handles_screen_info() - reports if sysfb handles the global screen_info + * + * Callers can use sysfb_handles_screen_info() to determine whether the Generic + * System Framebuffers (sysfb) can handle the global screen_info data structure + * or not. Drivers might need this information to know if they have to setup the + * system framebuffer, or if they have to delegate this action to sysfb instead. + * + * Returns: + * True if sysfb handles the global screen_info data structure. + */ +bool sysfb_handles_screen_info(void) +{ + const struct screen_info *si = &screen_info; + + return !!screen_info_video_type(si); +} +EXPORT_SYMBOL_GPL(sysfb_handles_screen_info); + #if defined(CONFIG_PCI) static bool sysfb_pci_dev_is_enabled(struct pci_dev *pdev) { |