1# Copyright (c) 2017 Linaro Ltd. 2# SPDX-License-Identifier: Apache-2.0 3 4config GPIO_MMIO32 5 bool 6 help 7 This is a driver for accessing a simple, fixed purpose, 32-bit 8 memory-mapped i/o register using the same APIs as GPIO drivers. This 9 is useful when an SoC or board has registers that aren't part of a 10 GPIO IP block and these registers are used to control things that 11 Zephyr normally expects to be specified using a GPIO pin, e.g. for 12 driving an LED, or chip-select line for an SPI device. 13