Ian Lepore d8cf9c4f8b Properly support the GPIO_PIN_PRESET_{LOW,HIGH} options when configuring
a gpio pin.  If neither of the options is specified, pre-set the pin's
output value to the pin's current input value, to achieve glitch-free
transitions to output mode on pins that are pulled up or down at reset
or via fdt pinctrl data.
2018-05-04 19:28:05 +00:00
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