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/*
* 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 */
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