Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
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/*
* Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com>
*
* SPDX-License-Identifier: Apache-2.0
*/
#include "zephyr/device.h"
#include "zephyr/drivers/gpio.h"
#include <zephyr/drivers/pinctrl.h>
#include <zephyr/devicetree/gpio.h>
#include <zephyr/drivers/gpio/gpio_cmsdk_ahb.h>
static const struct device *const gpio_ports[] = {DEVICE_DT_GET_OR_NULL(DT_NODELABEL(gpio0)),
DEVICE_DT_GET_OR_NULL(DT_NODELABEL(gpio1))};
static int pinctrl_configure_pin(const pinctrl_soc_pin_t *pin)
{
uint32_t flags = pin->input_enable ? GPIO_INPUT : GPIO_OUTPUT;
/* Each gpio has 16 pins, so divide by 16 to get specific gpio*/
const struct device *gpio_dev = gpio_ports[pin->pin_num >> 4];
return cmsdk_ahb_gpio_config(gpio_dev, pin->pin_num % 16, flags);
}
int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintptr_t reg)
{
ARG_UNUSED(reg);
for (uint8_t i = 0U; i < pin_cnt; i++) {
if (pinctrl_configure_pin(&pins[i]) == -ENOTSUP) {
return -ENOTSUP;
}
}
return 0;
}