28ee086d5b
backlight_device->sem has a very specific use as documented in the header file. The external users of this are using it for a different reason, to serialise access to the update_status() method. backlight users were supposed to implement their own internal serialisation of update_status() if needed but everyone is doing things differently and incorrectly. Therefore add a global mutex to take care of serialisation for everyone, once and for all. Locking for get_brightness remains optional since most users don't need it. Also update the lcd class in a similar way. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> |
||
---|---|---|
.. | ||
boot | ||
configs | ||
kernel | ||
lib | ||
math-emu | ||
mm | ||
oprofile | ||
platforms | ||
sysdev | ||
xmon | ||
.gitignore | ||
Kconfig | ||
Kconfig.debug | ||
Makefile |