52 строки
1.1 KiB
C
52 строки
1.1 KiB
C
/*
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* Copyright (C) Maxime Coquelin 2015
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* Author: Maxime Coquelin <mcoquelin.stm32@gmail.com>
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* License terms: GNU General Public License (GPL), version 2
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*/
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#ifndef __PINCTRL_STM32_H
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#define __PINCTRL_STM32_H
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#include <linux/pinctrl/pinctrl.h>
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#include <linux/pinctrl/pinconf-generic.h>
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#define STM32_PIN_NO(x) ((x) << 8)
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#define STM32_GET_PIN_NO(x) ((x) >> 8)
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#define STM32_GET_PIN_FUNC(x) ((x) & 0xff)
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#define STM32_PIN_GPIO 0
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#define STM32_PIN_AF(x) ((x) + 1)
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#define STM32_PIN_ANALOG (STM32_PIN_AF(15) + 1)
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struct stm32_desc_function {
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const char *name;
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const unsigned char num;
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};
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struct stm32_desc_pin {
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struct pinctrl_pin_desc pin;
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const struct stm32_desc_function *functions;
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};
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#define STM32_PIN(_pin, ...) \
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{ \
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.pin = _pin, \
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.functions = (struct stm32_desc_function[]){ \
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__VA_ARGS__, { } }, \
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}
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#define STM32_FUNCTION(_num, _name) \
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{ \
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.num = _num, \
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.name = _name, \
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}
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struct stm32_pinctrl_match_data {
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const struct stm32_desc_pin *pins;
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const unsigned int npins;
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};
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int stm32_pctl_probe(struct platform_device *pdev);
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#endif /* __PINCTRL_STM32_H */
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