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