Tomas Hlavacek authored Jun 23, 2016 and Michal Hrusecky committed Jun 29, 2016

Add kernel LED driver for Omnia board/MCU.

The driver implements standard LED interface.
More to it, the driver adds new files to
/sys/devices/platform/soc/soc:internal-regs/f1011000.i2c/i2c-0/i2c-1/ \
1-002b/leds/<name of LED>

The files are
brightness - the LED interface
color - R G B code
autonomous - 1=MCU drives the LED autonomously (default), 0=kernel LED driver

And there is global file
/sys/devices/platform/soc/soc:internal-regs/f1011000.i2c/i2c-0/i2c-1/ \
1-002b/global_brightness
which sets the global brightness via common PWM.