linux/drivers/pinctrl/freescale/pinctrl-vf610.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2//
   3// VF610 pinctrl driver based on imx pinmux and pinconf core
   4//
   5// Copyright 2013 Freescale Semiconductor, Inc.
   6
   7#include <linux/err.h>
   8#include <linux/init.h>
   9#include <linux/io.h>
  10#include <linux/of.h>
  11#include <linux/of_device.h>
  12#include <linux/pinctrl/pinctrl.h>
  13
  14#include "pinctrl-imx.h"
  15
  16enum vf610_pads {
  17        VF610_PAD_PTA6 = 0,
  18        VF610_PAD_PTA8 = 1,
  19        VF610_PAD_PTA9 = 2,
  20        VF610_PAD_PTA10 = 3,
  21        VF610_PAD_PTA11 = 4,
  22        VF610_PAD_PTA12 = 5,
  23        VF610_PAD_PTA16 = 6,
  24        VF610_PAD_PTA17 = 7,
  25        VF610_PAD_PTA18 = 8,
  26        VF610_PAD_PTA19 = 9,
  27        VF610_PAD_PTA20 = 10,
  28        VF610_PAD_PTA21 = 11,
  29        VF610_PAD_PTA22 = 12,
  30        VF610_PAD_PTA23 = 13,
  31        VF610_PAD_PTA24 = 14,
  32        VF610_PAD_PTA25 = 15,
  33        VF610_PAD_PTA26 = 16,
  34        VF610_PAD_PTA27 = 17,
  35        VF610_PAD_PTA28 = 18,
  36        VF610_PAD_PTA29 = 19,
  37        VF610_PAD_PTA30 = 20,
  38        VF610_PAD_PTA31 = 21,
  39        VF610_PAD_PTB0 = 22,
  40        VF610_PAD_PTB1 = 23,
  41        VF610_PAD_PTB2 = 24,
  42        VF610_PAD_PTB3 = 25,
  43        VF610_PAD_PTB4 = 26,
  44        VF610_PAD_PTB5 = 27,
  45        VF610_PAD_PTB6 = 28,
  46        VF610_PAD_PTB7 = 29,
  47        VF610_PAD_PTB8 = 30,
  48        VF610_PAD_PTB9 = 31,
  49        VF610_PAD_PTB10 = 32,
  50        VF610_PAD_PTB11 = 33,
  51        VF610_PAD_PTB12 = 34,
  52        VF610_PAD_PTB13 = 35,
  53        VF610_PAD_PTB14 = 36,
  54        VF610_PAD_PTB15 = 37,
  55        VF610_PAD_PTB16 = 38,
  56        VF610_PAD_PTB17 = 39,
  57        VF610_PAD_PTB18 = 40,
  58        VF610_PAD_PTB19 = 41,
  59        VF610_PAD_PTB20 = 42,
  60        VF610_PAD_PTB21 = 43,
  61        VF610_PAD_PTB22 = 44,
  62        VF610_PAD_PTC0 = 45,
  63        VF610_PAD_PTC1 = 46,
  64        VF610_PAD_PTC2 = 47,
  65        VF610_PAD_PTC3 = 48,
  66        VF610_PAD_PTC4 = 49,
  67        VF610_PAD_PTC5 = 50,
  68        VF610_PAD_PTC6 = 51,
  69        VF610_PAD_PTC7 = 52,
  70        VF610_PAD_PTC8 = 53,
  71        VF610_PAD_PTC9 = 54,
  72        VF610_PAD_PTC10 = 55,
  73        VF610_PAD_PTC11 = 56,
  74        VF610_PAD_PTC12 = 57,
  75        VF610_PAD_PTC13 = 58,
  76        VF610_PAD_PTC14 = 59,
  77        VF610_PAD_PTC15 = 60,
  78        VF610_PAD_PTC16 = 61,
  79        VF610_PAD_PTC17 = 62,
  80        VF610_PAD_PTD31 = 63,
  81        VF610_PAD_PTD30 = 64,
  82        VF610_PAD_PTD29 = 65,
  83        VF610_PAD_PTD28 = 66,
  84        VF610_PAD_PTD27 = 67,
  85        VF610_PAD_PTD26 = 68,
  86        VF610_PAD_PTD25 = 69,
  87        VF610_PAD_PTD24 = 70,
  88        VF610_PAD_PTD23 = 71,
  89        VF610_PAD_PTD22 = 72,
  90        VF610_PAD_PTD21 = 73,
  91        VF610_PAD_PTD20 = 74,
  92        VF610_PAD_PTD19 = 75,
  93        VF610_PAD_PTD18 = 76,
  94        VF610_PAD_PTD17 = 77,
  95        VF610_PAD_PTD16 = 78,
  96        VF610_PAD_PTD0 = 79,
  97        VF610_PAD_PTD1 = 80,
  98        VF610_PAD_PTD2 = 81,
  99        VF610_PAD_PTD3 = 82,
 100        VF610_PAD_PTD4 = 83,
 101        VF610_PAD_PTD5 = 84,
 102        VF610_PAD_PTD6 = 85,
 103        VF610_PAD_PTD7 = 86,
 104        VF610_PAD_PTD8 = 87,
 105        VF610_PAD_PTD9 = 88,
 106        VF610_PAD_PTD10 = 89,
 107        VF610_PAD_PTD11 = 90,
 108        VF610_PAD_PTD12 = 91,
 109        VF610_PAD_PTD13 = 92,
 110        VF610_PAD_PTB23 = 93,
 111        VF610_PAD_PTB24 = 94,
 112        VF610_PAD_PTB25 = 95,
 113        VF610_PAD_PTB26 = 96,
 114        VF610_PAD_PTB27 = 97,
 115        VF610_PAD_PTB28 = 98,
 116        VF610_PAD_PTC26 = 99,
 117        VF610_PAD_PTC27 = 100,
 118        VF610_PAD_PTC28 = 101,
 119        VF610_PAD_PTC29 = 102,
 120        VF610_PAD_PTC30 = 103,
 121        VF610_PAD_PTC31 = 104,
 122        VF610_PAD_PTE0 = 105,
 123        VF610_PAD_PTE1 = 106,
 124        VF610_PAD_PTE2 = 107,
 125        VF610_PAD_PTE3 = 108,
 126        VF610_PAD_PTE4 = 109,
 127        VF610_PAD_PTE5 = 110,
 128        VF610_PAD_PTE6 = 111,
 129        VF610_PAD_PTE7 = 112,
 130        VF610_PAD_PTE8 = 113,
 131        VF610_PAD_PTE9 = 114,
 132        VF610_PAD_PTE10 = 115,
 133        VF610_PAD_PTE11 = 116,
 134        VF610_PAD_PTE12 = 117,
 135        VF610_PAD_PTE13 = 118,
 136        VF610_PAD_PTE14 = 119,
 137        VF610_PAD_PTE15 = 120,
 138        VF610_PAD_PTE16 = 121,
 139        VF610_PAD_PTE17 = 122,
 140        VF610_PAD_PTE18 = 123,
 141        VF610_PAD_PTE19 = 124,
 142        VF610_PAD_PTE20 = 125,
 143        VF610_PAD_PTE21 = 126,
 144        VF610_PAD_PTE22 = 127,
 145        VF610_PAD_PTE23 = 128,
 146        VF610_PAD_PTE24 = 129,
 147        VF610_PAD_PTE25 = 130,
 148        VF610_PAD_PTE26 = 131,
 149        VF610_PAD_PTE27 = 132,
 150        VF610_PAD_PTE28 = 133,
 151        VF610_PAD_PTA7 = 134,
 152};
 153
 154/* Pad names for the pinmux subsystem */
 155static const struct pinctrl_pin_desc vf610_pinctrl_pads[] = {
 156        IMX_PINCTRL_PIN(VF610_PAD_PTA6),
 157        IMX_PINCTRL_PIN(VF610_PAD_PTA8),
 158        IMX_PINCTRL_PIN(VF610_PAD_PTA9),
 159        IMX_PINCTRL_PIN(VF610_PAD_PTA10),
 160        IMX_PINCTRL_PIN(VF610_PAD_PTA11),
 161        IMX_PINCTRL_PIN(VF610_PAD_PTA12),
 162        IMX_PINCTRL_PIN(VF610_PAD_PTA16),
 163        IMX_PINCTRL_PIN(VF610_PAD_PTA17),
 164        IMX_PINCTRL_PIN(VF610_PAD_PTA18),
 165        IMX_PINCTRL_PIN(VF610_PAD_PTA19),
 166        IMX_PINCTRL_PIN(VF610_PAD_PTA20),
 167        IMX_PINCTRL_PIN(VF610_PAD_PTA21),
 168        IMX_PINCTRL_PIN(VF610_PAD_PTA22),
 169        IMX_PINCTRL_PIN(VF610_PAD_PTA23),
 170        IMX_PINCTRL_PIN(VF610_PAD_PTA24),
 171        IMX_PINCTRL_PIN(VF610_PAD_PTA25),
 172        IMX_PINCTRL_PIN(VF610_PAD_PTA26),
 173        IMX_PINCTRL_PIN(VF610_PAD_PTA27),
 174        IMX_PINCTRL_PIN(VF610_PAD_PTA28),
 175        IMX_PINCTRL_PIN(VF610_PAD_PTA29),
 176        IMX_PINCTRL_PIN(VF610_PAD_PTA30),
 177        IMX_PINCTRL_PIN(VF610_PAD_PTA31),
 178        IMX_PINCTRL_PIN(VF610_PAD_PTB0),
 179        IMX_PINCTRL_PIN(VF610_PAD_PTB1),
 180        IMX_PINCTRL_PIN(VF610_PAD_PTB2),
 181        IMX_PINCTRL_PIN(VF610_PAD_PTB3),
 182        IMX_PINCTRL_PIN(VF610_PAD_PTB4),
 183        IMX_PINCTRL_PIN(VF610_PAD_PTB5),
 184        IMX_PINCTRL_PIN(VF610_PAD_PTB6),
 185        IMX_PINCTRL_PIN(VF610_PAD_PTB7),
 186        IMX_PINCTRL_PIN(VF610_PAD_PTB8),
 187        IMX_PINCTRL_PIN(VF610_PAD_PTB9),
 188        IMX_PINCTRL_PIN(VF610_PAD_PTB10),
 189        IMX_PINCTRL_PIN(VF610_PAD_PTB11),
 190        IMX_PINCTRL_PIN(VF610_PAD_PTB12),
 191        IMX_PINCTRL_PIN(VF610_PAD_PTB13),
 192        IMX_PINCTRL_PIN(VF610_PAD_PTB14),
 193        IMX_PINCTRL_PIN(VF610_PAD_PTB15),
 194        IMX_PINCTRL_PIN(VF610_PAD_PTB16),
 195        IMX_PINCTRL_PIN(VF610_PAD_PTB17),
 196        IMX_PINCTRL_PIN(VF610_PAD_PTB18),
 197        IMX_PINCTRL_PIN(VF610_PAD_PTB19),
 198        IMX_PINCTRL_PIN(VF610_PAD_PTB20),
 199        IMX_PINCTRL_PIN(VF610_PAD_PTB21),
 200        IMX_PINCTRL_PIN(VF610_PAD_PTB22),
 201        IMX_PINCTRL_PIN(VF610_PAD_PTC0),
 202        IMX_PINCTRL_PIN(VF610_PAD_PTC1),
 203        IMX_PINCTRL_PIN(VF610_PAD_PTC2),
 204        IMX_PINCTRL_PIN(VF610_PAD_PTC3),
 205        IMX_PINCTRL_PIN(VF610_PAD_PTC4),
 206        IMX_PINCTRL_PIN(VF610_PAD_PTC5),
 207        IMX_PINCTRL_PIN(VF610_PAD_PTC6),
 208        IMX_PINCTRL_PIN(VF610_PAD_PTC7),
 209        IMX_PINCTRL_PIN(VF610_PAD_PTC8),
 210        IMX_PINCTRL_PIN(VF610_PAD_PTC9),
 211        IMX_PINCTRL_PIN(VF610_PAD_PTC10),
 212        IMX_PINCTRL_PIN(VF610_PAD_PTC11),
 213        IMX_PINCTRL_PIN(VF610_PAD_PTC12),
 214        IMX_PINCTRL_PIN(VF610_PAD_PTC13),
 215        IMX_PINCTRL_PIN(VF610_PAD_PTC14),
 216        IMX_PINCTRL_PIN(VF610_PAD_PTC15),
 217        IMX_PINCTRL_PIN(VF610_PAD_PTC16),
 218        IMX_PINCTRL_PIN(VF610_PAD_PTC17),
 219        IMX_PINCTRL_PIN(VF610_PAD_PTD31),
 220        IMX_PINCTRL_PIN(VF610_PAD_PTD30),
 221        IMX_PINCTRL_PIN(VF610_PAD_PTD29),
 222        IMX_PINCTRL_PIN(VF610_PAD_PTD28),
 223        IMX_PINCTRL_PIN(VF610_PAD_PTD27),
 224        IMX_PINCTRL_PIN(VF610_PAD_PTD26),
 225        IMX_PINCTRL_PIN(VF610_PAD_PTD25),
 226        IMX_PINCTRL_PIN(VF610_PAD_PTD24),
 227        IMX_PINCTRL_PIN(VF610_PAD_PTD23),
 228        IMX_PINCTRL_PIN(VF610_PAD_PTD22),
 229        IMX_PINCTRL_PIN(VF610_PAD_PTD21),
 230        IMX_PINCTRL_PIN(VF610_PAD_PTD20),
 231        IMX_PINCTRL_PIN(VF610_PAD_PTD19),
 232        IMX_PINCTRL_PIN(VF610_PAD_PTD18),
 233        IMX_PINCTRL_PIN(VF610_PAD_PTD17),
 234        IMX_PINCTRL_PIN(VF610_PAD_PTD16),
 235        IMX_PINCTRL_PIN(VF610_PAD_PTD0),
 236        IMX_PINCTRL_PIN(VF610_PAD_PTD1),
 237        IMX_PINCTRL_PIN(VF610_PAD_PTD2),
 238        IMX_PINCTRL_PIN(VF610_PAD_PTD3),
 239        IMX_PINCTRL_PIN(VF610_PAD_PTD4),
 240        IMX_PINCTRL_PIN(VF610_PAD_PTD5),
 241        IMX_PINCTRL_PIN(VF610_PAD_PTD6),
 242        IMX_PINCTRL_PIN(VF610_PAD_PTD7),
 243        IMX_PINCTRL_PIN(VF610_PAD_PTD8),
 244        IMX_PINCTRL_PIN(VF610_PAD_PTD9),
 245        IMX_PINCTRL_PIN(VF610_PAD_PTD10),
 246        IMX_PINCTRL_PIN(VF610_PAD_PTD11),
 247        IMX_PINCTRL_PIN(VF610_PAD_PTD12),
 248        IMX_PINCTRL_PIN(VF610_PAD_PTD13),
 249        IMX_PINCTRL_PIN(VF610_PAD_PTB23),
 250        IMX_PINCTRL_PIN(VF610_PAD_PTB24),
 251        IMX_PINCTRL_PIN(VF610_PAD_PTB25),
 252        IMX_PINCTRL_PIN(VF610_PAD_PTB26),
 253        IMX_PINCTRL_PIN(VF610_PAD_PTB27),
 254        IMX_PINCTRL_PIN(VF610_PAD_PTB28),
 255        IMX_PINCTRL_PIN(VF610_PAD_PTC26),
 256        IMX_PINCTRL_PIN(VF610_PAD_PTC27),
 257        IMX_PINCTRL_PIN(VF610_PAD_PTC28),
 258        IMX_PINCTRL_PIN(VF610_PAD_PTC29),
 259        IMX_PINCTRL_PIN(VF610_PAD_PTC30),
 260        IMX_PINCTRL_PIN(VF610_PAD_PTC31),
 261        IMX_PINCTRL_PIN(VF610_PAD_PTE0),
 262        IMX_PINCTRL_PIN(VF610_PAD_PTE1),
 263        IMX_PINCTRL_PIN(VF610_PAD_PTE2),
 264        IMX_PINCTRL_PIN(VF610_PAD_PTE3),
 265        IMX_PINCTRL_PIN(VF610_PAD_PTE4),
 266        IMX_PINCTRL_PIN(VF610_PAD_PTE5),
 267        IMX_PINCTRL_PIN(VF610_PAD_PTE6),
 268        IMX_PINCTRL_PIN(VF610_PAD_PTE7),
 269        IMX_PINCTRL_PIN(VF610_PAD_PTE8),
 270        IMX_PINCTRL_PIN(VF610_PAD_PTE9),
 271        IMX_PINCTRL_PIN(VF610_PAD_PTE10),
 272        IMX_PINCTRL_PIN(VF610_PAD_PTE11),
 273        IMX_PINCTRL_PIN(VF610_PAD_PTE12),
 274        IMX_PINCTRL_PIN(VF610_PAD_PTE13),
 275        IMX_PINCTRL_PIN(VF610_PAD_PTE14),
 276        IMX_PINCTRL_PIN(VF610_PAD_PTE15),
 277        IMX_PINCTRL_PIN(VF610_PAD_PTE16),
 278        IMX_PINCTRL_PIN(VF610_PAD_PTE17),
 279        IMX_PINCTRL_PIN(VF610_PAD_PTE18),
 280        IMX_PINCTRL_PIN(VF610_PAD_PTE19),
 281        IMX_PINCTRL_PIN(VF610_PAD_PTE20),
 282        IMX_PINCTRL_PIN(VF610_PAD_PTE21),
 283        IMX_PINCTRL_PIN(VF610_PAD_PTE22),
 284        IMX_PINCTRL_PIN(VF610_PAD_PTE23),
 285        IMX_PINCTRL_PIN(VF610_PAD_PTE24),
 286        IMX_PINCTRL_PIN(VF610_PAD_PTE25),
 287        IMX_PINCTRL_PIN(VF610_PAD_PTE26),
 288        IMX_PINCTRL_PIN(VF610_PAD_PTE27),
 289        IMX_PINCTRL_PIN(VF610_PAD_PTE28),
 290        IMX_PINCTRL_PIN(VF610_PAD_PTA7),
 291};
 292
 293static int vf610_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
 294                                        struct pinctrl_gpio_range *range,
 295                                        unsigned offset, bool input)
 296{
 297        struct imx_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
 298        const struct imx_pin_reg *pin_reg;
 299        u32 reg;
 300
 301        pin_reg = &ipctl->pin_regs[offset];
 302        if (pin_reg->mux_reg == -1)
 303                return -EINVAL;
 304
 305        /* IBE always enabled allows us to read the value "on the wire" */
 306        reg = readl(ipctl->base + pin_reg->mux_reg);
 307        if (input)
 308                reg &= ~0x2;
 309        else
 310                reg |= 0x2;
 311        writel(reg, ipctl->base + pin_reg->mux_reg);
 312
 313        return 0;
 314}
 315
 316static const struct imx_pinctrl_soc_info vf610_pinctrl_info = {
 317        .pins = vf610_pinctrl_pads,
 318        .npins = ARRAY_SIZE(vf610_pinctrl_pads),
 319        .flags = SHARE_MUX_CONF_REG | ZERO_OFFSET_VALID,
 320        .gpio_set_direction = vf610_pmx_gpio_set_direction,
 321        .mux_mask = 0x700000,
 322        .mux_shift = 20,
 323};
 324
 325static const struct of_device_id vf610_pinctrl_of_match[] = {
 326        { .compatible = "fsl,vf610-iomuxc", },
 327        { /* sentinel */ }
 328};
 329
 330static int vf610_pinctrl_probe(struct platform_device *pdev)
 331{
 332        return imx_pinctrl_probe(pdev, &vf610_pinctrl_info);
 333}
 334
 335static struct platform_driver vf610_pinctrl_driver = {
 336        .driver = {
 337                .name = "vf610-pinctrl",
 338                .of_match_table = vf610_pinctrl_of_match,
 339        },
 340        .probe = vf610_pinctrl_probe,
 341};
 342
 343static int __init vf610_pinctrl_init(void)
 344{
 345        return platform_driver_register(&vf610_pinctrl_driver);
 346}
 347arch_initcall(vf610_pinctrl_init);
 348