93 lines
2.0 KiB
C
93 lines
2.0 KiB
C
/*
|
|
* Marvell PXA2xx family pin control
|
|
*
|
|
* Copyright (C) 2015 Robert Jarzmik
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; version 2 of the License.
|
|
*
|
|
*/
|
|
|
|
#ifndef __PINCTRL_PXA_H
|
|
#define __PINCTRL_PXA_H
|
|
|
|
#define PXA_FUNCTION(_dir, _af, _name) \
|
|
{ \
|
|
.name = _name, \
|
|
.muxval = (_dir | (_af << 1)), \
|
|
}
|
|
|
|
#define PXA_PIN(_pin, funcs...) \
|
|
{ \
|
|
.pin = _pin, \
|
|
.functions = (struct pxa_desc_function[]){ \
|
|
funcs, { } }, \
|
|
}
|
|
|
|
#define PXA_GPIO_PIN(_pin, funcs...) \
|
|
{ \
|
|
.pin = _pin, \
|
|
.functions = (struct pxa_desc_function[]){ \
|
|
PXA_FUNCTION(0, 0, "gpio_in"), \
|
|
PXA_FUNCTION(1, 0, "gpio_out"), \
|
|
funcs, { } }, \
|
|
}
|
|
|
|
#define PXA_GPIO_ONLY_PIN(_pin) \
|
|
{ \
|
|
.pin = _pin, \
|
|
.functions = (struct pxa_desc_function[]){ \
|
|
PXA_FUNCTION(0, 0, "gpio_in"), \
|
|
PXA_FUNCTION(1, 0, "gpio_out"), \
|
|
{ } }, \
|
|
}
|
|
|
|
#define PXA_PINCTRL_PIN(pin) \
|
|
PINCTRL_PIN(pin, "P" #pin)
|
|
|
|
struct pxa_desc_function {
|
|
const char *name;
|
|
u8 muxval;
|
|
};
|
|
|
|
struct pxa_desc_pin {
|
|
struct pinctrl_pin_desc pin;
|
|
struct pxa_desc_function *functions;
|
|
};
|
|
|
|
struct pxa_pinctrl_group {
|
|
const char *name;
|
|
unsigned pin;
|
|
};
|
|
|
|
struct pxa_pinctrl_function {
|
|
const char *name;
|
|
const char **groups;
|
|
unsigned ngroups;
|
|
};
|
|
|
|
struct pxa_pinctrl {
|
|
spinlock_t lock;
|
|
void __iomem **base_gafr;
|
|
void __iomem **base_gpdr;
|
|
void __iomem **base_pgsr;
|
|
struct device *dev;
|
|
struct pinctrl_desc desc;
|
|
struct pinctrl_dev *pctl_dev;
|
|
unsigned npins;
|
|
const struct pxa_desc_pin *ppins;
|
|
unsigned ngroups;
|
|
struct pxa_pinctrl_group *groups;
|
|
unsigned nfuncs;
|
|
struct pxa_pinctrl_function *functions;
|
|
char *name;
|
|
};
|
|
|
|
int pxa2xx_pinctrl_init(struct platform_device *pdev,
|
|
const struct pxa_desc_pin *ppins, int npins,
|
|
void __iomem *base_gafr[], void __iomem *base_gpdr[],
|
|
void __iomem *base_gpsr[]);
|
|
|
|
#endif /* __PINCTRL_PXA_H */
|