28d27cf4ce
Especially on Kirkwood, a couple GPIOs are actually only output capable. Let's separate the ability to configure a GPIO as input or output to accommodate this restriction. Signed-off-by: Nicolas Pitre <nico@marvell.com>
42 lines
1 KiB
C
42 lines
1 KiB
C
/*
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* arch/arm/plat-orion/include/plat/gpio.h
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*
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* Marvell Orion SoC GPIO handling.
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*
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* This file is licensed under the terms of the GNU General Public
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* License version 2. This program is licensed "as is" without any
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* warranty of any kind, whether express or implied.
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*/
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#ifndef __PLAT_GPIO_H
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#define __PLAT_GPIO_H
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/*
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* GENERIC_GPIO primitives.
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*/
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int gpio_request(unsigned pin, const char *label);
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void gpio_free(unsigned pin);
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int gpio_direction_input(unsigned pin);
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int gpio_direction_output(unsigned pin, int value);
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int gpio_get_value(unsigned pin);
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void gpio_set_value(unsigned pin, int value);
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/*
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* Orion-specific GPIO API extensions.
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*/
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void orion_gpio_set_unused(unsigned pin);
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void orion_gpio_set_blink(unsigned pin, int blink);
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#define GPIO_BIDI_OK (1 << 0)
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#define GPIO_INPUT_OK (1 << 1)
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#define GPIO_OUTPUT_OK (1 << 2)
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void orion_gpio_set_valid(unsigned pin, int mode);
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/*
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* GPIO interrupt handling.
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*/
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extern struct irq_chip orion_gpio_irq_chip;
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void orion_gpio_irq_handler(int irqoff);
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#endif
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