/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Marvell PXA2xx family pin control
 *
 * Copyright (C) 2015 Robert Jarzmik
 */

#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 {
        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 pingroup                 *groups;
        unsigned                        nfuncs;
        struct pinfunction              *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 */