gpio-led driver

Raul Piper raulpblooper at
Wed Jul 20 07:15:13 EDT 2016

I wanted to know the part number for the leds-gpio.c in the driver/leds
folder and the device tree bindings for this driver .Can some one point out
to me where in Linux kernel it is?

Also why below line has been used.Is it mandatory?
*.of_match_table = of_gpio_leds_match,*

thanks in advance ,
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