drivers/pinctrl/pinctrl-s3c24xx.c

   1 /*
   2  * S3C24XX specific support for Samsung pinctrl/gpiolib driver.
   3  *
   4  * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This file contains the SamsungS3C24XX specific information required by the
  12  * Samsung pinctrl/gpiolib driver. It also includes the implementation of
  13  * external gpio and wakeup interrupt support.
  14  */
  15
  16 #include <linux/module.h>
  17 #include <linux/device.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/irqdomain.h>
  20 #include <linux/irq.h>
  21 #include <linux/of_irq.h>
  22 #include <linux/irqchip/chained_irq.h>
  23 #include <linux/io.h>
  24 #include <linux/slab.h>
  25 #include <linux/err.h>
  26
  27 #include "pinctrl-samsung.h"
  28
  29 #define NUM_EINT        24
  30 #define NUM_EINT_IRQ    6
  31 #define EINT_MAX_PER_GROUP      8
  32
  33 #define EINTPEND_REG    0xa8
  34 #define EINTMASK_REG    0xa4
  35
  36 #define EINT_GROUP(i)           ((int)((i) / EINT_MAX_PER_GROUP))
  37 #define EINT_REG(i)             ((EINT_GROUP(i) * 4) + 0x88)
  38 #define EINT_OFFS(i)            ((i) % EINT_MAX_PER_GROUP * 4)
  39
  40 #define EINT_LEVEL_LOW          0
  41 #define EINT_LEVEL_HIGH         1
  42 #define EINT_EDGE_FALLING       2
  43 #define EINT_EDGE_RISING        4
  44 #define EINT_EDGE_BOTH          6
  45 #define EINT_MASK               0xf
  46
  47 static struct samsung_pin_bank_type bank_type_1bit = {
  48         .fld_width = { 1, 1, },
  49         .reg_offset = { 0x00, 0x04, },
  50 };
  51
  52 static struct samsung_pin_bank_type bank_type_2bit = {
  53         .fld_width = { 2, 1, 2, },
  54         .reg_offset = { 0x00, 0x04, 0x08, },
  55 };
  56
  57 #define PIN_BANK_A(pins, reg, id)               \
  58         {                                               \
  59                 .type           = &bank_type_1bit,      \
  60                 .pctl_offset    = reg,                  \
  61                 .nr_pins        = pins,                 \
  62                 .eint_type      = EINT_TYPE_NONE,       \
  63                 .name           = id                    \
  64         }
  65
  66 #define PIN_BANK_2BIT(pins, reg, id)            \
  67         {                                               \
  68                 .type           = &bank_type_2bit,      \
  69                 .pctl_offset    = reg,                  \
  70                 .nr_pins        = pins,                 \
  71                 .eint_type      = EINT_TYPE_NONE,       \
  72                 .name           = id                    \
  73         }
  74
  75 #define PIN_BANK_2BIT_EINTW(pins, reg, id, eoffs, emask)\
  76         {                                               \
  77                 .type           = &bank_type_2bit,      \
  78                 .pctl_offset    = reg,                  \
  79                 .nr_pins        = pins,                 \
  80                 .eint_type      = EINT_TYPE_WKUP,       \
  81                 .eint_func      = 2,                    \
  82                 .eint_mask      = emask,                \
  83                 .eint_offset    = eoffs,                \
  84                 .name           = id                    \
  85         }
  86
  87 /**
  88  * struct s3c24xx_eint_data: EINT common data
  89  * @drvdata: pin controller driver data
  90  * @domains: IRQ domains of particular EINT interrupts
  91  * @parents: mapped parent irqs in the main interrupt controller
  92  */
  93 struct s3c24xx_eint_data {
  94         struct samsung_pinctrl_drv_data *drvdata;
  95         struct irq_domain *domains[NUM_EINT];
  96         int parents[NUM_EINT_IRQ];
  97 };
  98
  99 /**
 100  * struct s3c24xx_eint_domain_data: per irq-domain data
 101  * @bank: pin bank related to the domain
 102  * @eint_data: common data
 103  * eint0_3_parent_only: live eints 0-3 only in the main intc
 104  */
 105 struct s3c24xx_eint_domain_data {
 106         struct samsung_pin_bank *bank;
 107         struct s3c24xx_eint_data *eint_data;
 108         bool eint0_3_parent_only;
 109 };
 110
 111 static int s3c24xx_eint_get_trigger(unsigned int type)
 112 {
 113         switch (type) {
 114         case IRQ_TYPE_EDGE_RISING:
 115                 return EINT_EDGE_RISING;
 116                 break;
 117         case IRQ_TYPE_EDGE_FALLING:
 118                 return EINT_EDGE_FALLING;
 119                 break;
 120         case IRQ_TYPE_EDGE_BOTH:
 121                 return EINT_EDGE_BOTH;
 122                 break;
 123         case IRQ_TYPE_LEVEL_HIGH:
 124                 return EINT_LEVEL_HIGH;
 125                 break;
 126         case IRQ_TYPE_LEVEL_LOW:
 127                 return EINT_LEVEL_LOW;
 128                 break;
 129         default:
 130                 return -EINVAL;
 131         }
 132 }
 133
 134 static void s3c24xx_eint_set_handler(unsigned int irq, unsigned int type)
 135 {
 136         /* Edge- and level-triggered interrupts need different handlers */
 137         if (type & IRQ_TYPE_EDGE_BOTH)
 138                 __irq_set_handler_locked(irq, handle_edge_irq);
 139         else
 140                 __irq_set_handler_locked(irq, handle_level_irq);
 141 }
 142
 143 static void s3c24xx_eint_set_function(struct samsung_pinctrl_drv_data *d,
 144                                         struct samsung_pin_bank *bank, int pin)
 145 {
 146         struct samsung_pin_bank_type *bank_type = bank->type;
 147         unsigned long flags;
 148         void __iomem *reg;
 149         u8 shift;
 150         u32 mask;
 151         u32 val;
 152
 153         /* Make sure that pin is configured as interrupt */
 154         reg = d->virt_base + bank->pctl_offset;
 155         shift = pin * bank_type->fld_width[PINCFG_TYPE_FUNC];
 156         mask = (1 << bank_type->fld_width[PINCFG_TYPE_FUNC]) - 1;
 157
 158         spin_lock_irqsave(&bank->slock, flags);
 159
 160         val = readl(reg);
 161         val &= ~(mask << shift);
 162         val |= bank->eint_func << shift;
 163         writel(val, reg);
 164
 165         spin_unlock_irqrestore(&bank->slock, flags);
 166 }
 167
 168 static int s3c24xx_eint_type(struct irq_data *data, unsigned int type)
 169 {
 170         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 171         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 172         int index = bank->eint_offset + data->hwirq;
 173         void __iomem *reg;
 174         int trigger;
 175         u8 shift;
 176         u32 val;
 177
 178         trigger = s3c24xx_eint_get_trigger(type);
 179         if (trigger < 0) {
 180                 dev_err(d->dev, "unsupported external interrupt type\n");
 181                 return -EINVAL;
 182         }
 183
 184         s3c24xx_eint_set_handler(data->irq, type);
 185
 186         /* Set up interrupt trigger */
 187         reg = d->virt_base + EINT_REG(index);
 188         shift = EINT_OFFS(index);
 189
 190         val = readl(reg);
 191         val &= ~(EINT_MASK << shift);
 192         val |= trigger << shift;
 193         writel(val, reg);
 194
 195         s3c24xx_eint_set_function(d, bank, data->hwirq);
 196
 197         return 0;
 198 }
 199
 200 /* Handling of EINTs 0-3 on all except S3C2412 and S3C2413 */
 201
 202 static void s3c2410_eint0_3_ack(struct irq_data *data)
 203 {
 204         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 205         struct s3c24xx_eint_domain_data *ddata = bank->irq_domain->host_data;
 206         struct s3c24xx_eint_data *eint_data = ddata->eint_data;
 207         int parent_irq = eint_data->parents[data->hwirq];
 208         struct irq_chip *parent_chip = irq_get_chip(parent_irq);
 209
 210         parent_chip->irq_ack(irq_get_irq_data(parent_irq));
 211 }
 212
 213 static void s3c2410_eint0_3_mask(struct irq_data *data)
 214 {
 215         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 216         struct s3c24xx_eint_domain_data *ddata = bank->irq_domain->host_data;
 217         struct s3c24xx_eint_data *eint_data = ddata->eint_data;
 218         int parent_irq = eint_data->parents[data->hwirq];
 219         struct irq_chip *parent_chip = irq_get_chip(parent_irq);
 220
 221         parent_chip->irq_mask(irq_get_irq_data(parent_irq));
 222 }
 223
 224 static void s3c2410_eint0_3_unmask(struct irq_data *data)
 225 {
 226         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 227         struct s3c24xx_eint_domain_data *ddata = bank->irq_domain->host_data;
 228         struct s3c24xx_eint_data *eint_data = ddata->eint_data;
 229         int parent_irq = eint_data->parents[data->hwirq];
 230         struct irq_chip *parent_chip = irq_get_chip(parent_irq);
 231
 232         parent_chip->irq_unmask(irq_get_irq_data(parent_irq));
 233 }
 234
 235 static struct irq_chip s3c2410_eint0_3_chip = {
 236         .name           = "s3c2410-eint0_3",
 237         .irq_ack        = s3c2410_eint0_3_ack,
 238         .irq_mask       = s3c2410_eint0_3_mask,
 239         .irq_unmask     = s3c2410_eint0_3_unmask,
 240         .irq_set_type   = s3c24xx_eint_type,
 241 };
 242
 243 static void s3c2410_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
 244 {
 245         struct irq_data *data = irq_desc_get_irq_data(desc);
 246         struct s3c24xx_eint_data *eint_data = irq_get_handler_data(irq);
 247         unsigned int virq;
 248
 249         /* the first 4 eints have a simple 1 to 1 mapping */
 250         virq = irq_linear_revmap(eint_data->domains[data->hwirq], data->hwirq);
 251         /* Something must be really wrong if an unmapped EINT is unmasked */
 252         BUG_ON(!virq);
 253
 254         generic_handle_irq(virq);
 255 }
 256
 257 /* Handling of EINTs 0-3 on S3C2412 and S3C2413 */
 258
 259 static void s3c2412_eint0_3_ack(struct irq_data *data)
 260 {
 261         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 262         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 263
 264         unsigned long bitval = 1UL << data->hwirq;
 265         writel(bitval, d->virt_base + EINTPEND_REG);
 266 }
 267
 268 static void s3c2412_eint0_3_mask(struct irq_data *data)
 269 {
 270         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 271         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 272         unsigned long mask;
 273
 274         mask = readl(d->virt_base + EINTMASK_REG);
 275         mask |= (1UL << data->hwirq);
 276         writel(mask, d->virt_base + EINTMASK_REG);
 277 }
 278
 279 static void s3c2412_eint0_3_unmask(struct irq_data *data)
 280 {
 281         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 282         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 283         unsigned long mask;
 284
 285         mask = readl(d->virt_base + EINTMASK_REG);
 286         mask &= ~(1UL << data->hwirq);
 287         writel(mask, d->virt_base + EINTMASK_REG);
 288 }
 289
 290 static struct irq_chip s3c2412_eint0_3_chip = {
 291         .name           = "s3c2412-eint0_3",
 292         .irq_ack        = s3c2412_eint0_3_ack,
 293         .irq_mask       = s3c2412_eint0_3_mask,
 294         .irq_unmask     = s3c2412_eint0_3_unmask,
 295         .irq_set_type   = s3c24xx_eint_type,
 296 };
 297
 298 static void s3c2412_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
 299 {
 300         struct irq_chip *chip = irq_get_chip(irq);
 301         struct irq_data *data = irq_desc_get_irq_data(desc);
 302         struct s3c24xx_eint_data *eint_data = irq_get_handler_data(irq);
 303         unsigned int virq;
 304
 305         chained_irq_enter(chip, desc);
 306
 307         /* the first 4 eints have a simple 1 to 1 mapping */
 308         virq = irq_linear_revmap(eint_data->domains[data->hwirq], data->hwirq);
 309         /* Something must be really wrong if an unmapped EINT is unmasked */
 310         BUG_ON(!virq);
 311
 312         generic_handle_irq(virq);
 313
 314         chained_irq_exit(chip, desc);
 315 }
 316
 317 /* Handling of all other eints */
 318
 319 static void s3c24xx_eint_ack(struct irq_data *data)
 320 {
 321         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 322         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 323         unsigned char index = bank->eint_offset + data->hwirq;
 324
 325         writel(1UL << index, d->virt_base + EINTPEND_REG);
 326 }
 327
 328 static void s3c24xx_eint_mask(struct irq_data *data)
 329 {
 330         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 331         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 332         unsigned char index = bank->eint_offset + data->hwirq;
 333         unsigned long mask;
 334
 335         mask = readl(d->virt_base + EINTMASK_REG);
 336         mask |= (1UL << index);
 337         writel(mask, d->virt_base + EINTMASK_REG);
 338 }
 339
 340 static void s3c24xx_eint_unmask(struct irq_data *data)
 341 {
 342         struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(data);
 343         struct samsung_pinctrl_drv_data *d = bank->drvdata;
 344         unsigned char index = bank->eint_offset + data->hwirq;
 345         unsigned long mask;
 346
 347         mask = readl(d->virt_base + EINTMASK_REG);
 348         mask &= ~(1UL << index);
 349         writel(mask, d->virt_base + EINTMASK_REG);
 350 }
 351
 352 static struct irq_chip s3c24xx_eint_chip = {
 353         .name           = "s3c-eint",
 354         .irq_ack        = s3c24xx_eint_ack,
 355         .irq_mask       = s3c24xx_eint_mask,
 356         .irq_unmask     = s3c24xx_eint_unmask,
 357         .irq_set_type   = s3c24xx_eint_type,
 358 };
 359
 360 static inline void s3c24xx_demux_eint(unsigned int irq, struct irq_desc *desc,
 361                                       u32 offset, u32 range)
 362 {
 363         struct irq_chip *chip = irq_get_chip(irq);
 364         struct s3c24xx_eint_data *data = irq_get_handler_data(irq);
 365         struct samsung_pinctrl_drv_data *d = data->drvdata;
 366         unsigned int pend, mask;
 367
 368         chained_irq_enter(chip, desc);
 369
 370         pend = readl(d->virt_base + EINTPEND_REG);
 371         mask = readl(d->virt_base + EINTMASK_REG);
 372
 373         pend &= ~mask;
 374         pend &= range;
 375
 376         while (pend) {
 377                 unsigned int virq;
 378
 379                 irq = __ffs(pend);
 380                 pend &= ~(1 << irq);
 381                 virq = irq_linear_revmap(data->domains[irq], irq - offset);
 382                 /* Something is really wrong if an unmapped EINT is unmasked */
 383                 BUG_ON(!virq);
 384
 385                 generic_handle_irq(virq);
 386         }
 387
 388         chained_irq_exit(chip, desc);
 389 }
 390
 391 static void s3c24xx_demux_eint4_7(unsigned int irq, struct irq_desc *desc)
 392 {
 393         s3c24xx_demux_eint(irq, desc, 0, 0xf0);
 394 }
 395
 396 static void s3c24xx_demux_eint8_23(unsigned int irq, struct irq_desc *desc)
 397 {
 398         s3c24xx_demux_eint(irq, desc, 8, 0xffff00);
 399 }
 400
 401 static irq_flow_handler_t s3c2410_eint_handlers[NUM_EINT_IRQ] = {
 402         s3c2410_demux_eint0_3,
 403         s3c2410_demux_eint0_3,
 404         s3c2410_demux_eint0_3,
 405         s3c2410_demux_eint0_3,
 406         s3c24xx_demux_eint4_7,
 407         s3c24xx_demux_eint8_23,
 408 };
 409
 410 static irq_flow_handler_t s3c2412_eint_handlers[NUM_EINT_IRQ] = {
 411         s3c2412_demux_eint0_3,
 412         s3c2412_demux_eint0_3,
 413         s3c2412_demux_eint0_3,
 414         s3c2412_demux_eint0_3,
 415         s3c24xx_demux_eint4_7,
 416         s3c24xx_demux_eint8_23,
 417 };
 418
 419 static int s3c24xx_gpf_irq_map(struct irq_domain *h, unsigned int virq,
 420                                         irq_hw_number_t hw)
 421 {
 422         struct s3c24xx_eint_domain_data *ddata = h->host_data;
 423         struct samsung_pin_bank *bank = ddata->bank;
 424
 425         if (!(bank->eint_mask & (1 << (bank->eint_offset + hw))))
 426                 return -EINVAL;
 427
 428         if (hw <= 3) {
 429                 if (ddata->eint0_3_parent_only)
 430                         irq_set_chip_and_handler(virq, &s3c2410_eint0_3_chip,
 431                                                  handle_edge_irq);
 432                 else
 433                         irq_set_chip_and_handler(virq, &s3c2412_eint0_3_chip,
 434                                                  handle_edge_irq);
 435         } else {
 436                 irq_set_chip_and_handler(virq, &s3c24xx_eint_chip,
 437                                          handle_edge_irq);
 438         }
 439         irq_set_chip_data(virq, bank);
 440         set_irq_flags(virq, IRQF_VALID);
 441         return 0;
 442 }
 443
 444 static const struct irq_domain_ops s3c24xx_gpf_irq_ops = {
 445         .map    = s3c24xx_gpf_irq_map,
 446         .xlate  = irq_domain_xlate_twocell,
 447 };
 448
 449 static int s3c24xx_gpg_irq_map(struct irq_domain *h, unsigned int virq,
 450                                         irq_hw_number_t hw)
 451 {
 452         struct s3c24xx_eint_domain_data *ddata = h->host_data;
 453         struct samsung_pin_bank *bank = ddata->bank;
 454
 455         if (!(bank->eint_mask & (1 << (bank->eint_offset + hw))))
 456                 return -EINVAL;
 457
 458         irq_set_chip_and_handler(virq, &s3c24xx_eint_chip, handle_edge_irq);
 459         irq_set_chip_data(virq, bank);
 460         set_irq_flags(virq, IRQF_VALID);
 461         return 0;
 462 }
 463
 464 static const struct irq_domain_ops s3c24xx_gpg_irq_ops = {
 465         .map    = s3c24xx_gpg_irq_map,
 466         .xlate  = irq_domain_xlate_twocell,
 467 };
 468
 469 static const struct of_device_id s3c24xx_eint_irq_ids[] = {
 470         { .compatible = "samsung,s3c2410-wakeup-eint", .data = (void *)1 },
 471         { .compatible = "samsung,s3c2412-wakeup-eint", .data = (void *)0 },
 472         { }
 473 };
 474
 475 static int s3c24xx_eint_init(struct samsung_pinctrl_drv_data *d)
 476 {
 477         struct device *dev = d->dev;
 478         const struct of_device_id *match;
 479         struct device_node *eint_np = NULL;
 480         struct device_node *np;
 481         struct samsung_pin_bank *bank;
 482         struct s3c24xx_eint_data *eint_data;
 483         const struct irq_domain_ops *ops;
 484         unsigned int i;
 485         bool eint0_3_parent_only;
 486         irq_flow_handler_t *handlers;
 487
 488         for_each_child_of_node(dev->of_node, np) {
 489                 match = of_match_node(s3c24xx_eint_irq_ids, np);
 490                 if (match) {
 491                         eint_np = np;
 492                         eint0_3_parent_only = (bool)match->data;
 493                         break;
 494                 }
 495         }
 496         if (!eint_np)
 497                 return -ENODEV;
 498
 499         eint_data = devm_kzalloc(dev, sizeof(*eint_data), GFP_KERNEL);
 500         if (!eint_data)
 501                 return -ENOMEM;
 502
 503         eint_data->drvdata = d;
 504
 505         handlers = eint0_3_parent_only ? s3c2410_eint_handlers
 506                                        : s3c2412_eint_handlers;
 507         for (i = 0; i < NUM_EINT_IRQ; ++i) {
 508                 unsigned int irq;
 509
 510                 irq = irq_of_parse_and_map(eint_np, i);
 511                 if (!irq) {
 512                         dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
 513                         return -ENXIO;
 514                 }
 515
 516                 eint_data->parents[i] = irq;
 517                 irq_set_chained_handler(irq, handlers[i]);
 518                 irq_set_handler_data(irq, eint_data);
 519         }
 520
 521         bank = d->ctrl->pin_banks;
 522         for (i = 0; i < d->ctrl->nr_banks; ++i, ++bank) {
 523                 struct s3c24xx_eint_domain_data *ddata;
 524                 unsigned int mask;
 525                 unsigned int irq;
 526                 unsigned int pin;
 527
 528                 if (bank->eint_type != EINT_TYPE_WKUP)
 529                         continue;
 530
 531                 ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
 532                 if (!ddata)
 533                         return -ENOMEM;
 534
 535                 ddata->bank = bank;
 536                 ddata->eint_data = eint_data;
 537                 ddata->eint0_3_parent_only = eint0_3_parent_only;
 538
 539                 ops = (bank->eint_offset == 0) ? &s3c24xx_gpf_irq_ops
 540                                                : &s3c24xx_gpg_irq_ops;
 541
 542                 bank->irq_domain = irq_domain_add_linear(bank->of_node,
 543                                 bank->nr_pins, ops, ddata);
 544                 if (!bank->irq_domain) {
 545                         dev_err(dev, "wkup irq domain add failed\n");
 546                         return -ENXIO;
 547                 }
 548
 549                 irq = bank->eint_offset;
 550                 mask = bank->eint_mask;
 551                 for (pin = 0; mask; ++pin, mask >>= 1) {
 552                         if (irq >= NUM_EINT)
 553                                 break;
 554                         if (!(mask & 1))
 555                                 continue;
 556                         eint_data->domains[irq] = bank->irq_domain;
 557                         ++irq;
 558                 }
 559         }
 560
 561         return 0;
 562 }
 563
 564 static struct samsung_pin_bank s3c2412_pin_banks[] = {
 565         PIN_BANK_A(23, 0x000, "gpa"),
 566         PIN_BANK_2BIT(11, 0x010, "gpb"),
 567         PIN_BANK_2BIT(16, 0x020, "gpc"),
 568         PIN_BANK_2BIT(16, 0x030, "gpd"),
 569         PIN_BANK_2BIT(16, 0x040, "gpe"),
 570         PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
 571         PIN_BANK_2BIT_EINTW(16, 0x060, "gpg", 8, 0xffff00),
 572         PIN_BANK_2BIT(11, 0x070, "gph"),
 573         PIN_BANK_2BIT(13, 0x080, "gpj"),
 574 };
 575
 576 struct samsung_pin_ctrl s3c2412_pin_ctrl[] = {
 577         {
 578                 .pin_banks      = s3c2412_pin_banks,
 579                 .nr_banks       = ARRAY_SIZE(s3c2412_pin_banks),
 580                 .eint_wkup_init = s3c24xx_eint_init,
 581                 .label          = "S3C2412-GPIO",
 582         },
 583 };
 584
 585 static struct samsung_pin_bank s3c2416_pin_banks[] = {
 586         PIN_BANK_A(27, 0x000, "gpa"),
 587         PIN_BANK_2BIT(11, 0x010, "gpb"),
 588         PIN_BANK_2BIT(16, 0x020, "gpc"),
 589         PIN_BANK_2BIT(16, 0x030, "gpd"),
 590         PIN_BANK_2BIT(16, 0x040, "gpe"),
 591         PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
 592         PIN_BANK_2BIT_EINTW(8, 0x060, "gpg", 8, 0xff00),
 593         PIN_BANK_2BIT(15, 0x070, "gph"),
 594         PIN_BANK_2BIT(16, 0x0e0, "gpk"),
 595         PIN_BANK_2BIT(14, 0x0f0, "gpl"),
 596         PIN_BANK_2BIT(2, 0x100, "gpm"),
 597 };
 598
 599 struct samsung_pin_ctrl s3c2416_pin_ctrl[] = {
 600         {
 601                 .pin_banks      = s3c2416_pin_banks,
 602                 .nr_banks       = ARRAY_SIZE(s3c2416_pin_banks),
 603                 .eint_wkup_init = s3c24xx_eint_init,
 604                 .label          = "S3C2416-GPIO",
 605         },
 606 };
 607
 608 static struct samsung_pin_bank s3c2440_pin_banks[] = {
 609         PIN_BANK_A(25, 0x000, "gpa"),
 610         PIN_BANK_2BIT(11, 0x010, "gpb"),
 611         PIN_BANK_2BIT(16, 0x020, "gpc"),
 612         PIN_BANK_2BIT(16, 0x030, "gpd"),
 613         PIN_BANK_2BIT(16, 0x040, "gpe"),
 614         PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
 615         PIN_BANK_2BIT_EINTW(16, 0x060, "gpg", 8, 0xffff00),
 616         PIN_BANK_2BIT(11, 0x070, "gph"),
 617         PIN_BANK_2BIT(13, 0x0d0, "gpj"),
 618 };
 619
 620 struct samsung_pin_ctrl s3c2440_pin_ctrl[] = {
 621         {
 622                 .pin_banks      = s3c2440_pin_banks,
 623                 .nr_banks       = ARRAY_SIZE(s3c2440_pin_banks),
 624                 .eint_wkup_init = s3c24xx_eint_init,
 625                 .label          = "S3C2440-GPIO",
 626         },
 627 };
 628
 629 static struct samsung_pin_bank s3c2450_pin_banks[] = {
 630         PIN_BANK_A(28, 0x000, "gpa"),
 631         PIN_BANK_2BIT(11, 0x010, "gpb"),
 632         PIN_BANK_2BIT(16, 0x020, "gpc"),
 633         PIN_BANK_2BIT(16, 0x030, "gpd"),
 634         PIN_BANK_2BIT(16, 0x040, "gpe"),
 635         PIN_BANK_2BIT_EINTW(8, 0x050, "gpf", 0, 0xff),
 636         PIN_BANK_2BIT_EINTW(16, 0x060, "gpg", 8, 0xffff00),
 637         PIN_BANK_2BIT(15, 0x070, "gph"),
 638         PIN_BANK_2BIT(16, 0x0d0, "gpj"),
 639         PIN_BANK_2BIT(16, 0x0e0, "gpk"),
 640         PIN_BANK_2BIT(15, 0x0f0, "gpl"),
 641         PIN_BANK_2BIT(2, 0x100, "gpm"),
 642 };
 643
 644 struct samsung_pin_ctrl s3c2450_pin_ctrl[] = {
 645         {
 646                 .pin_banks      = s3c2450_pin_banks,
 647                 .nr_banks       = ARRAY_SIZE(s3c2450_pin_banks),
 648                 .eint_wkup_init = s3c24xx_eint_init,
 649                 .label          = "S3C2450-GPIO",
 650         },
 651 };