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/*
* linux/drivers/pinctrl/pinctrl-lantiq.h
* based on linux/drivers/pinctrl/pinctrl-pxa3xx.h
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* publishhed by the Free Software Foundation.
*
* Copyright (C) 2012 John Crispin <blogic@openwrt.org>
*/
#ifndef __PINCTRL_LANTIQ_H
#include <linux/clkdev.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/machine.h>
#include "core.h"
#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
#define LTQ_MAX_MUX 4
#define MFPR_FUNC_MASK 0x3
#define LTQ_PINCONF_PACK(param, arg) ((param) << 16 | (arg))
#define LTQ_PINCONF_UNPACK_PARAM(conf) ((conf) >> 16)
#define LTQ_PINCONF_UNPACK_ARG(conf) ((conf) & 0xffff)
enum ltq_pinconf_param {
LTQ_PINCONF_PARAM_PULL,
LTQ_PINCONF_PARAM_OPEN_DRAIN,
LTQ_PINCONF_PARAM_DRIVE_CURRENT,
LTQ_PINCONF_PARAM_SLEW_RATE,
};
struct ltq_cfg_param {
const char *property;
enum ltq_pinconf_param param;
};
struct ltq_mfp_pin {
const char *name;
const unsigned int pin;
const unsigned short func[LTQ_MAX_MUX];
};
struct ltq_pin_group {
const char *name;
const unsigned mux;
const unsigned *pins;
const unsigned npins;
};
struct ltq_pmx_func {
const char *name;
const char * const *groups;
const unsigned num_groups;
};
struct ltq_pinmux_info {
struct device *dev;
struct pinctrl_dev *pctrl;
/* we need to manage up to 5 pad controllers */
void __iomem *membase[5];
/* the descriptor for the subsystem */
struct pinctrl_desc *desc;
/* we expose our pads to the subsystem */
struct pinctrl_pin_desc *pads;
/* the number of pads. this varies between socs */
unsigned int num_pads;
/* these are our multifunction pins */
const struct ltq_mfp_pin *mfp;
unsigned int num_mfp;
/* a number of multifunction pins can be grouped together */
const struct ltq_pin_group *grps;
unsigned int num_grps;
/* a mapping between function string and id */
const struct ltq_pmx_func *funcs;
unsigned int num_funcs;
/* the pinconf options that we are able to read from the DT */
const struct ltq_cfg_param *params;
unsigned int num_params;
/* the pad controller can have a irq mapping */
const unsigned *exin;
unsigned int num_exin;
/* we need 5 clocks max */
struct clk *clk[5];
/* soc specific callback used to apply muxing */
int (*apply_mux)(struct pinctrl_dev *pctrldev, int pin, int mux);
};
enum ltq_pin {
GPIO0 = 0,
GPIO1,
GPIO2,
GPIO3,
GPIO4,
GPIO5,
GPIO6,
GPIO7,
GPIO8,
GPIO9,
GPIO10, /* 10 */
GPIO11,
GPIO12,
GPIO13,
GPIO14,
GPIO15,
GPIO16,
GPIO17,
GPIO18,
GPIO19,
GPIO20, /* 20 */
GPIO21,
GPIO22,
GPIO23,
GPIO24,
GPIO25,
GPIO26,
GPIO27,
GPIO28,
GPIO29,
GPIO30, /* 30 */
GPIO31,
GPIO32,
GPIO33,
GPIO34,
GPIO35,
GPIO36,
GPIO37,
GPIO38,
GPIO39,
GPIO40, /* 40 */
GPIO41,
GPIO42,
GPIO43,
GPIO44,
GPIO45,
GPIO46,
GPIO47,
GPIO48,
GPIO49,
GPIO50, /* 50 */
GPIO51,
GPIO52,
GPIO53,
GPIO54,
GPIO55,
GPIO64,
GPIO65,
GPIO66,
GPIO67,
GPIO68,
GPIO69,
GPIO70,
GPIO71,
GPIO72,
GPIO73,
GPIO74,
GPIO75,
GPIO76,
GPIO77,
GPIO78,
GPIO79,
GPIO80,
GPIO81,
GPIO82,
GPIO83,
GPIO84,
GPIO85,
GPIO86,
GPIO87,
GPIO88,
};
extern int ltq_pinctrl_register(struct platform_device *pdev,
struct ltq_pinmux_info *info);
extern int ltq_pinctrl_unregister(struct platform_device *pdev);
#endif /* __PINCTRL_PXA3XX_H */
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