• Hans de Goede's avatar
    platform/x86: dell-*: Add a generic dell-laptop notifier chain · 504b0259
    Hans de Goede authored
    There are several cases where events handled in one of the dell-* drivers
    need to be propagated to another dell-* driver.
    
    This commit adds 3 generic functions:
    dell_laptop_register_notifier()
    dell_laptop_unregister_notifier()
    dell_laptop_call_notifier()
    
    It currently only defines 1 action:
    DELL_LAPTOP_KBD_BACKLIGHT_BRIGHTNESS_CHANGED
    
    Which is intended to propagate kbd_backlight_brightness_changed wmi
    events from dell-wmi to dell-laptop (which contains the actual kbd
    backlight driver).
    
    These functions are put in dell-smbios as both dell-wmi and dell-laptop
    use smbios functions and I do not want to put the notifier head in
    either driver, as that will make the 2 drivers depend on each other.
    Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
    Acked-by: default avatarPali Rohár <pali.rohar@gmail.com>
    Signed-off-by: default avatarDarren Hart (VMware) <dvhart@infradead.org>
    504b0259
dell-smbios.h 1.5 KB