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37 lines
1.1 KiB
37 lines
1.1 KiB
/* |
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* Copyright 2025 Arm Limited and/or its affiliates <open-source-office@arm.com> |
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* |
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* SPDX-License-Identifier: Apache-2.0 |
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*/ |
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#include "zephyr/device.h" |
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#include "zephyr/drivers/gpio.h" |
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#include <zephyr/drivers/pinctrl.h> |
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#include <zephyr/devicetree/gpio.h> |
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#include <zephyr/drivers/gpio/gpio_cmsdk_ahb.h> |
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static const struct device *const gpio_ports[] = {DEVICE_DT_GET_OR_NULL(DT_NODELABEL(gpio0)), |
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DEVICE_DT_GET_OR_NULL(DT_NODELABEL(gpio1)), |
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DEVICE_DT_GET_OR_NULL(DT_NODELABEL(gpio2))}; |
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static int pinctrl_configure_pin(const pinctrl_soc_pin_t *pin) |
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{ |
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uint32_t flags = pin->input_enable ? GPIO_INPUT : GPIO_OUTPUT; |
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/* Each gpio has 16 pins, so divide by 16 to get specific gpio*/ |
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const struct device *gpio_dev = gpio_ports[pin->pin_num >> 4]; |
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return cmsdk_ahb_gpio_config(gpio_dev, pin->pin_num % 16, flags); |
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} |
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int pinctrl_configure_pins(const pinctrl_soc_pin_t *pins, uint8_t pin_cnt, uintptr_t reg) |
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{ |
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ARG_UNUSED(reg); |
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for (uint8_t i = 0U; i < pin_cnt; i++) { |
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if (pinctrl_configure_pin(pins++) == -ENOTSUP) { |
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return -ENOTSUP; |
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} |
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} |
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return 0; |
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}
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