zephyr: Add help for keyboard protocol select.
Add additional help to the keyboard protocol selection.
BRANCH=none
TEST=make buildall
TEST=zmake testall
@@ -21,6 +21,11 @@ if PLATFORM_EC_KEYBOARD
choice "Protocol select"
prompt "Select the keyboard protocol to use"
+ help
+ Select the keyboard protocol used to communicate key presses to the
+ AP. PLATFORM_EC_KEYBOARD_PROTOCOL_8042 is supported by x86-compatible
+ application processors, and PLATFORM_EC_KEYBOARD_PROTOCOL_MKBP is
+ used for ARM application processors.
config PLATFORM_EC_KEYBOARD_PROTOCOL_8042
bool "i8042"
