202 lines
3.4 KiB
C
202 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* linux/drivers/pinctrl/pinctrl-lantiq.h
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* based on linux/drivers/pinctrl/pinctrl-pxa3xx.h
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*
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* Copyright (C) 2012 John Crispin <john@phrozen.org>
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*/
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#ifndef __PINCTRL_LANTIQ_H
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#define __PINCTRL_LANTIQ_H
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#include <linux/clkdev.h>
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#include <linux/pinctrl/pinctrl.h>
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#include <linux/pinctrl/pinconf.h>
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#include <linux/pinctrl/pinmux.h>
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#include <linux/pinctrl/consumer.h>
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#include <linux/pinctrl/machine.h>
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#include "core.h"
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#define ARRAY_AND_SIZE(x) (x), ARRAY_SIZE(x)
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#define LTQ_MAX_MUX 4
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#define MFPR_FUNC_MASK 0x3
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#define LTQ_PINCONF_PACK(param, arg) ((param) << 16 | (arg))
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#define LTQ_PINCONF_UNPACK_PARAM(conf) ((conf) >> 16)
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#define LTQ_PINCONF_UNPACK_ARG(conf) ((conf) & 0xffff)
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enum ltq_pinconf_param {
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LTQ_PINCONF_PARAM_PULL,
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LTQ_PINCONF_PARAM_OPEN_DRAIN,
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LTQ_PINCONF_PARAM_DRIVE_CURRENT,
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LTQ_PINCONF_PARAM_SLEW_RATE,
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LTQ_PINCONF_PARAM_OUTPUT,
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};
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struct ltq_cfg_param {
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const char *property;
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enum ltq_pinconf_param param;
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};
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struct ltq_mfp_pin {
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const char *name;
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const unsigned int pin;
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const unsigned short func[LTQ_MAX_MUX];
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};
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struct ltq_pin_group {
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const char *name;
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const unsigned mux;
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const unsigned *pins;
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const unsigned npins;
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};
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struct ltq_pmx_func {
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const char *name;
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const char * const *groups;
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const unsigned num_groups;
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};
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struct ltq_pinmux_info {
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struct device *dev;
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struct pinctrl_dev *pctrl;
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/* we need to manage up to 5 pad controllers */
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void __iomem *membase[5];
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/* the descriptor for the subsystem */
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struct pinctrl_desc *desc;
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/* we expose our pads to the subsystem */
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struct pinctrl_pin_desc *pads;
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/* the number of pads. this varies between socs */
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unsigned int num_pads;
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/* these are our multifunction pins */
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const struct ltq_mfp_pin *mfp;
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unsigned int num_mfp;
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/* a number of multifunction pins can be grouped together */
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const struct ltq_pin_group *grps;
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unsigned int num_grps;
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/* a mapping between function string and id */
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const struct ltq_pmx_func *funcs;
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unsigned int num_funcs;
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/* the pinconf options that we are able to read from the DT */
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const struct ltq_cfg_param *params;
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unsigned int num_params;
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/* the pad controller can have a irq mapping */
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const unsigned *exin;
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unsigned int num_exin;
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/* we need 5 clocks max */
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struct clk *clk[5];
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/* soc specific callback used to apply muxing */
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int (*apply_mux)(struct pinctrl_dev *pctrldev, int pin, int mux);
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};
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enum ltq_pin {
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GPIO0 = 0,
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GPIO1,
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GPIO2,
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GPIO3,
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GPIO4,
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GPIO5,
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GPIO6,
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GPIO7,
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GPIO8,
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GPIO9,
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GPIO10, /* 10 */
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GPIO11,
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GPIO12,
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GPIO13,
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GPIO14,
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GPIO15,
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GPIO16,
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GPIO17,
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GPIO18,
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GPIO19,
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GPIO20, /* 20 */
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GPIO21,
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GPIO22,
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GPIO23,
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GPIO24,
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GPIO25,
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GPIO26,
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GPIO27,
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GPIO28,
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GPIO29,
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GPIO30, /* 30 */
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GPIO31,
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GPIO32,
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GPIO33,
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GPIO34,
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GPIO35,
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GPIO36,
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GPIO37,
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GPIO38,
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GPIO39,
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GPIO40, /* 40 */
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GPIO41,
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GPIO42,
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GPIO43,
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GPIO44,
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GPIO45,
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GPIO46,
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GPIO47,
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GPIO48,
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GPIO49,
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GPIO50, /* 50 */
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GPIO51,
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GPIO52,
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GPIO53,
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GPIO54,
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GPIO55,
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GPIO56,
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GPIO57,
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GPIO58,
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GPIO59,
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GPIO60, /* 60 */
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GPIO61,
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GPIO62,
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GPIO63,
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GPIO64,
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GPIO65,
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GPIO66,
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GPIO67,
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GPIO68,
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GPIO69,
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GPIO70,
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GPIO71,
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GPIO72,
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GPIO73,
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GPIO74,
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GPIO75,
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GPIO76,
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GPIO77,
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GPIO78,
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GPIO79,
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GPIO80,
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GPIO81,
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GPIO82,
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GPIO83,
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GPIO84,
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GPIO85,
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GPIO86,
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GPIO87,
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GPIO88,
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};
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extern int ltq_pinctrl_register(struct platform_device *pdev,
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struct ltq_pinmux_info *info);
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extern int ltq_pinctrl_unregister(struct platform_device *pdev);
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#endif /* __PINCTRL_LANTIQ_H */
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