msm: display: mipi_lgit: Userspace display gamma control
Originally written by Paul Reioux (faux123)
Modified from his original implementation as follows:
* Remove kgamma_ctrl sysfs entry - it did absolutely nothing
* Alter the show() functions to output the checksum in the
first entry, in order to match the expected input of
the store() functions. This should not break existing
applications
* Move store/show code to a common function
* Add limit checks from Mike Cain (motley)
* Added a kgamma_apply sysfs entry which will apply
the current state when anything is stored to it,
instead of waiting until the next time the LCD
is power cycled
Change-Id: I8835e42709cefa547e02e28a7e5a381d88282700
1 file changed