mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-31 14:13:39 +00:00
a88ca6deca
When a pin is assigned to a coprocessor not running Linux, the pin should be flagged in the DT as reserved and not usable by Linux. Add pin configuration RSVD (Reserved) and instrument the driver to not update the mux setting. Signed-off-by: Fabien Dessenne <fabien.dessenne@foss.st.com> Signed-off-by: Antonio Borneo <antonio.borneo@foss.st.com> Link: https://lore.kernel.org/20250610152309.299438-2-antonio.borneo@foss.st.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
90 lines
2.0 KiB
C
90 lines
2.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright (C) Maxime Coquelin 2015
|
|
* Copyright (C) STMicroelectronics 2017
|
|
* Author: Maxime Coquelin <mcoquelin.stm32@gmail.com>
|
|
*/
|
|
#ifndef __PINCTRL_STM32_H
|
|
#define __PINCTRL_STM32_H
|
|
|
|
#include <linux/pinctrl/pinctrl.h>
|
|
#include <linux/pinctrl/pinconf-generic.h>
|
|
|
|
#define STM32_PIN_NO(x) ((x) << 8)
|
|
#define STM32_GET_PIN_NO(x) ((x) >> 8)
|
|
#define STM32_GET_PIN_FUNC(x) ((x) & 0xff)
|
|
|
|
#define STM32_PIN_GPIO 0
|
|
#define STM32_PIN_AF(x) ((x) + 1)
|
|
#define STM32_PIN_ANALOG (STM32_PIN_AF(15) + 1)
|
|
#define STM32_PIN_RSVD (STM32_PIN_ANALOG + 1)
|
|
#define STM32_CONFIG_NUM (STM32_PIN_RSVD + 1)
|
|
|
|
/* package information */
|
|
#define STM32MP_PKG_AA BIT(0)
|
|
#define STM32MP_PKG_AB BIT(1)
|
|
#define STM32MP_PKG_AC BIT(2)
|
|
#define STM32MP_PKG_AD BIT(3)
|
|
#define STM32MP_PKG_AI BIT(8)
|
|
#define STM32MP_PKG_AK BIT(10)
|
|
#define STM32MP_PKG_AL BIT(11)
|
|
|
|
struct stm32_desc_function {
|
|
const char *name;
|
|
const unsigned char num;
|
|
};
|
|
|
|
struct stm32_desc_pin {
|
|
struct pinctrl_pin_desc pin;
|
|
const struct stm32_desc_function functions[STM32_CONFIG_NUM];
|
|
const unsigned int pkg;
|
|
};
|
|
|
|
#define STM32_PIN(_pin, ...) \
|
|
{ \
|
|
.pin = _pin, \
|
|
.functions = { \
|
|
__VA_ARGS__}, \
|
|
}
|
|
|
|
#define STM32_PIN_PKG(_pin, _pkg, ...) \
|
|
{ \
|
|
.pin = _pin, \
|
|
.pkg = _pkg, \
|
|
.functions = { \
|
|
__VA_ARGS__}, \
|
|
}
|
|
#define STM32_FUNCTION(_num, _name) \
|
|
[_num] = { \
|
|
.num = _num, \
|
|
.name = _name, \
|
|
}
|
|
|
|
struct stm32_pinctrl_match_data {
|
|
const struct stm32_desc_pin *pins;
|
|
const unsigned int npins;
|
|
bool secure_control;
|
|
bool rif_control;
|
|
};
|
|
|
|
/**
|
|
* stm32_pctl_probe() - Common probe for stm32 pinctrl drivers.
|
|
* @pdev: Pinctrl platform device.
|
|
*/
|
|
int stm32_pctl_probe(struct platform_device *pdev);
|
|
|
|
/**
|
|
* stm32_pinctrl_suspend() - Common suspend for stm32 pinctrl drivers.
|
|
* @dev: Pinctrl device.
|
|
*/
|
|
int stm32_pinctrl_suspend(struct device *dev);
|
|
|
|
/**
|
|
* stm32_pinctrl_resume() - Common resume for stm32 pinctrl drivers.
|
|
* @dev: Pinctrl device.
|
|
*/
|
|
int stm32_pinctrl_resume(struct device *dev);
|
|
|
|
#endif /* __PINCTRL_STM32_H */
|
|
|