[PATCH 0/3] Remove <linux/of_gpio.h>

[Jialu Xu]

The legacy header <linux/of_gpio.h> exports only one deprecated
function, of_get_named_gpio(). Its last three consumers all reside in
the NFC subsystem. Convert them to the GPIO descriptor API and then
remove the header entirely.

Patchx 1-2 convert the NFC drivers.
Patch 3 removes of_get_named_gpio() and deletes <linux/of_gpio.h> and
also TODO.