drivers/pinctrl/pinctrl-lantiq.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  linux/drivers/pinctrl/pinctrl-lantiq.h
   4  *  based on linux/drivers/pinctrl/pinctrl-pxa3xx.h
   5  *
   6  *  Copyright (C) 2012 John Crispin <john@phrozen.org>
   7  */
   8
   9 #ifndef __PINCTRL_LANTIQ_H
  10 #define __PINCTRL_LANTIQ_H
  11
  12 #include <linux/clkdev.h>
  13
  14 #include <linux/pinctrl/consumer.h>
  15 #include <linux/pinctrl/machine.h>
  16 #include <linux/pinctrl/pinconf.h>
  17 #include <linux/pinctrl/pinctrl.h>
  18 #include <linux/pinctrl/pinmux.h>
  19
  20 #include "core.h"
  21
  22 #define ARRAY_AND_SIZE(x)       (x), ARRAY_SIZE(x)
  23
  24 #define LTQ_MAX_MUX             4
  25 #define MFPR_FUNC_MASK          0x3
  26
  27 #define LTQ_PINCONF_PACK(param, arg)            ((param) << 16 | (arg))
  28 #define LTQ_PINCONF_UNPACK_PARAM(conf)          ((conf) >> 16)
  29 #define LTQ_PINCONF_UNPACK_ARG(conf)            ((conf) & 0xffff)
  30
  31 enum ltq_pinconf_param {
  32         LTQ_PINCONF_PARAM_PULL,
  33         LTQ_PINCONF_PARAM_OPEN_DRAIN,
  34         LTQ_PINCONF_PARAM_DRIVE_CURRENT,
  35         LTQ_PINCONF_PARAM_SLEW_RATE,
  36         LTQ_PINCONF_PARAM_OUTPUT,
  37 };
  38
  39 struct ltq_cfg_param {
  40         const char *property;
  41         enum ltq_pinconf_param param;
  42 };
  43
  44 struct ltq_mfp_pin {
  45         const char *name;
  46         const unsigned int pin;
  47         const unsigned short func[LTQ_MAX_MUX];
  48 };
  49
  50 struct ltq_pin_group {
  51         const char *name;
  52         const unsigned mux;
  53         const unsigned *pins;
  54         const unsigned npins;
  55 };
  56
  57 struct ltq_pmx_func {
  58         const char *name;
  59         const char * const *groups;
  60         const unsigned num_groups;
  61 };
  62
  63 struct ltq_pinmux_info {
  64         struct device *dev;
  65         struct pinctrl_dev *pctrl;
  66
  67         /* we need to manage up to 5 pad controllers */
  68         void __iomem *membase[5];
  69
  70         /* the descriptor for the subsystem */
  71         struct pinctrl_desc *desc;
  72
  73         /* we expose our pads to the subsystem */
  74         struct pinctrl_pin_desc *pads;
  75
  76         /* the number of pads. this varies between socs */
  77         unsigned int num_pads;
  78
  79         /* these are our multifunction pins */
  80         const struct ltq_mfp_pin *mfp;
  81         unsigned int num_mfp;
  82
  83         /* a number of multifunction pins can be grouped together */
  84         const struct ltq_pin_group *grps;
  85         unsigned int num_grps;
  86
  87         /* a mapping between function string and id */
  88         const struct ltq_pmx_func *funcs;
  89         unsigned int num_funcs;
  90
  91         /* the pinconf options that we are able to read from the DT */
  92         const struct ltq_cfg_param *params;
  93         unsigned int num_params;
  94
  95         /* the pad controller can have a irq mapping  */
  96         const unsigned *exin;
  97         unsigned int num_exin;
  98
  99         /* we need 5 clocks max */
 100         struct clk *clk[5];
 101
 102         /* soc specific callback used to apply muxing */
 103         int (*apply_mux)(struct pinctrl_dev *pctrldev, int pin, int mux);
 104 };
 105
 106 enum ltq_pin {
 107         GPIO0 = 0,
 108         GPIO1,
 109         GPIO2,
 110         GPIO3,
 111         GPIO4,
 112         GPIO5,
 113         GPIO6,
 114         GPIO7,
 115         GPIO8,
 116         GPIO9,
 117         GPIO10, /* 10 */
 118         GPIO11,
 119         GPIO12,
 120         GPIO13,
 121         GPIO14,
 122         GPIO15,
 123         GPIO16,
 124         GPIO17,
 125         GPIO18,
 126         GPIO19,
 127         GPIO20, /* 20 */
 128         GPIO21,
 129         GPIO22,
 130         GPIO23,
 131         GPIO24,
 132         GPIO25,
 133         GPIO26,
 134         GPIO27,
 135         GPIO28,
 136         GPIO29,
 137         GPIO30, /* 30 */
 138         GPIO31,
 139         GPIO32,
 140         GPIO33,
 141         GPIO34,
 142         GPIO35,
 143         GPIO36,
 144         GPIO37,
 145         GPIO38,
 146         GPIO39,
 147         GPIO40, /* 40 */
 148         GPIO41,
 149         GPIO42,
 150         GPIO43,
 151         GPIO44,
 152         GPIO45,
 153         GPIO46,
 154         GPIO47,
 155         GPIO48,
 156         GPIO49,
 157         GPIO50, /* 50 */
 158         GPIO51,
 159         GPIO52,
 160         GPIO53,
 161         GPIO54,
 162         GPIO55,
 163         GPIO56,
 164         GPIO57,
 165         GPIO58,
 166         GPIO59,
 167         GPIO60, /* 60 */
 168         GPIO61,
 169         GPIO62,
 170         GPIO63,
 171
 172         GPIO64,
 173         GPIO65,
 174         GPIO66,
 175         GPIO67,
 176         GPIO68,
 177         GPIO69,
 178         GPIO70,
 179         GPIO71,
 180         GPIO72,
 181         GPIO73,
 182         GPIO74,
 183         GPIO75,
 184         GPIO76,
 185         GPIO77,
 186         GPIO78,
 187         GPIO79,
 188         GPIO80,
 189         GPIO81,
 190         GPIO82,
 191         GPIO83,
 192         GPIO84,
 193         GPIO85,
 194         GPIO86,
 195         GPIO87,
 196         GPIO88,
 197 };
 198
 199 extern int ltq_pinctrl_register(struct platform_device *pdev,
 200                                    struct ltq_pinmux_info *info);
 201 extern int ltq_pinctrl_unregister(struct platform_device *pdev);
 202 #endif  /* __PINCTRL_LANTIQ_H */