75 lines
1.4 KiB
C
75 lines
1.4 KiB
C
/*
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* (C) Copyright 2016 - Beniamino Galvani <b.galvani@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __PINCTRL_MESON_H__
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#define __PINCTRL_MESON_H__
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#include <linux/types.h>
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struct meson_pmx_group {
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const char *name;
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const unsigned int *pins;
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unsigned int num_pins;
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bool is_gpio;
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unsigned int reg;
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unsigned int bit;
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};
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struct meson_pmx_func {
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const char *name;
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const char * const *groups;
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unsigned int num_groups;
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};
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struct meson_pinctrl_data {
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const char *name;
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struct meson_pmx_group *groups;
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struct meson_pmx_func *funcs;
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unsigned int pin_base;
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unsigned int num_pins;
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unsigned int num_groups;
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unsigned int num_funcs;
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};
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struct meson_pinctrl {
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struct meson_pinctrl_data *data;
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void __iomem *reg_mux;
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};
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#define PIN(x, b) (b + x)
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#define GROUP(grp, r, b) \
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{ \
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.name = #grp, \
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.pins = grp ## _pins, \
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.num_pins = ARRAY_SIZE(grp ## _pins), \
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.reg = r, \
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.bit = b, \
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}
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#define GPIO_GROUP(gpio, b) \
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{ \
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.name = #gpio, \
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.pins = (const unsigned int[]){ PIN(gpio, b) }, \
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.num_pins = 1, \
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.is_gpio = true, \
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}
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#define FUNCTION(fn) \
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{ \
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.name = #fn, \
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.groups = fn ## _groups, \
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.num_groups = ARRAY_SIZE(fn ## _groups), \
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}
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#define MESON_PIN(x, b) PINCTRL_PIN(PIN(x, b), #x)
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extern const struct pinctrl_ops meson_pinctrl_ops;
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int meson_pinctrl_probe(struct udevice *dev);
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#endif /* __PINCTRL_MESON_H__ */
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