1 /* 2 * Copyright (c) 2016-2017 NVIDIA Corporation 3 * 4 * Author: Thierry Reding <treding@nvidia.com> 5 * 6 * This software is licensed under the terms of the GNU General Public 7 * License version 2, as published by the Free Software Foundation, and 8 * may be copied, distributed, and modified under those terms. 9 */ 10 11 #include <linux/gpio/driver.h> 12 #include <linux/interrupt.h> 13 #include <linux/irq.h> 14 #include <linux/module.h> 15 #include <linux/of_device.h> 16 #include <linux/platform_device.h> 17 18 #include <dt-bindings/gpio/tegra186-gpio.h> 19 #include <dt-bindings/gpio/tegra194-gpio.h> 20 21 #define TEGRA186_GPIO_ENABLE_CONFIG 0x00 22 #define TEGRA186_GPIO_ENABLE_CONFIG_ENABLE BIT(0) 23 #define TEGRA186_GPIO_ENABLE_CONFIG_OUT BIT(1) 24 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_NONE (0x0 << 2) 25 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_LEVEL (0x1 << 2) 26 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_SINGLE_EDGE (0x2 << 2) 27 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_DOUBLE_EDGE (0x3 << 2) 28 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_MASK (0x3 << 2) 29 #define TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_LEVEL BIT(4) 30 #define TEGRA186_GPIO_ENABLE_CONFIG_INTERRUPT BIT(6) 31 32 #define TEGRA186_GPIO_DEBOUNCE_CONTROL 0x04 33 #define TEGRA186_GPIO_DEBOUNCE_CONTROL_THRESHOLD(x) ((x) & 0xff) 34 35 #define TEGRA186_GPIO_INPUT 0x08 36 #define TEGRA186_GPIO_INPUT_HIGH BIT(0) 37 38 #define TEGRA186_GPIO_OUTPUT_CONTROL 0x0c 39 #define TEGRA186_GPIO_OUTPUT_CONTROL_FLOATED BIT(0) 40 41 #define TEGRA186_GPIO_OUTPUT_VALUE 0x10 42 #define TEGRA186_GPIO_OUTPUT_VALUE_HIGH BIT(0) 43 44 #define TEGRA186_GPIO_INTERRUPT_CLEAR 0x14 45 46 #define TEGRA186_GPIO_INTERRUPT_STATUS(x) (0x100 + (x) * 4) 47 48 struct tegra_gpio_port { 49 const char *name; 50 unsigned int offset; 51 unsigned int pins; 52 unsigned int irq; 53 }; 54 55 struct tegra_gpio_soc { 56 const struct tegra_gpio_port *ports; 57 unsigned int num_ports; 58 const char *name; 59 }; 60 61 struct tegra_gpio { 62 struct gpio_chip gpio; 63 struct irq_chip intc; 64 unsigned int num_irq; 65 unsigned int *irq; 66 67 const struct tegra_gpio_soc *soc; 68 69 void __iomem *base; 70 }; 71 72 static const struct tegra_gpio_port * 73 tegra186_gpio_get_port(struct tegra_gpio *gpio, unsigned int *pin) 74 { 75 unsigned int start = 0, i; 76 77 for (i = 0; i < gpio->soc->num_ports; i++) { 78 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; 79 80 if (*pin >= start && *pin < start + port->pins) { 81 *pin -= start; 82 return port; 83 } 84 85 start += port->pins; 86 } 87 88 return NULL; 89 } 90 91 static void __iomem *tegra186_gpio_get_base(struct tegra_gpio *gpio, 92 unsigned int pin) 93 { 94 const struct tegra_gpio_port *port; 95 96 port = tegra186_gpio_get_port(gpio, &pin); 97 if (!port) 98 return NULL; 99 100 return gpio->base + port->offset + pin * 0x20; 101 } 102 103 static int tegra186_gpio_get_direction(struct gpio_chip *chip, 104 unsigned int offset) 105 { 106 struct tegra_gpio *gpio = gpiochip_get_data(chip); 107 void __iomem *base; 108 u32 value; 109 110 base = tegra186_gpio_get_base(gpio, offset); 111 if (WARN_ON(base == NULL)) 112 return -ENODEV; 113 114 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 115 if (value & TEGRA186_GPIO_ENABLE_CONFIG_OUT) 116 return 0; 117 118 return 1; 119 } 120 121 static int tegra186_gpio_direction_input(struct gpio_chip *chip, 122 unsigned int offset) 123 { 124 struct tegra_gpio *gpio = gpiochip_get_data(chip); 125 void __iomem *base; 126 u32 value; 127 128 base = tegra186_gpio_get_base(gpio, offset); 129 if (WARN_ON(base == NULL)) 130 return -ENODEV; 131 132 value = readl(base + TEGRA186_GPIO_OUTPUT_CONTROL); 133 value |= TEGRA186_GPIO_OUTPUT_CONTROL_FLOATED; 134 writel(value, base + TEGRA186_GPIO_OUTPUT_CONTROL); 135 136 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 137 value |= TEGRA186_GPIO_ENABLE_CONFIG_ENABLE; 138 value &= ~TEGRA186_GPIO_ENABLE_CONFIG_OUT; 139 writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG); 140 141 return 0; 142 } 143 144 static int tegra186_gpio_direction_output(struct gpio_chip *chip, 145 unsigned int offset, int level) 146 { 147 struct tegra_gpio *gpio = gpiochip_get_data(chip); 148 void __iomem *base; 149 u32 value; 150 151 /* configure output level first */ 152 chip->set(chip, offset, level); 153 154 base = tegra186_gpio_get_base(gpio, offset); 155 if (WARN_ON(base == NULL)) 156 return -EINVAL; 157 158 /* set the direction */ 159 value = readl(base + TEGRA186_GPIO_OUTPUT_CONTROL); 160 value &= ~TEGRA186_GPIO_OUTPUT_CONTROL_FLOATED; 161 writel(value, base + TEGRA186_GPIO_OUTPUT_CONTROL); 162 163 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 164 value |= TEGRA186_GPIO_ENABLE_CONFIG_ENABLE; 165 value |= TEGRA186_GPIO_ENABLE_CONFIG_OUT; 166 writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG); 167 168 return 0; 169 } 170 171 static int tegra186_gpio_get(struct gpio_chip *chip, unsigned int offset) 172 { 173 struct tegra_gpio *gpio = gpiochip_get_data(chip); 174 void __iomem *base; 175 u32 value; 176 177 base = tegra186_gpio_get_base(gpio, offset); 178 if (WARN_ON(base == NULL)) 179 return -ENODEV; 180 181 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 182 if (value & TEGRA186_GPIO_ENABLE_CONFIG_OUT) 183 value = readl(base + TEGRA186_GPIO_OUTPUT_VALUE); 184 else 185 value = readl(base + TEGRA186_GPIO_INPUT); 186 187 return value & BIT(0); 188 } 189 190 static void tegra186_gpio_set(struct gpio_chip *chip, unsigned int offset, 191 int level) 192 { 193 struct tegra_gpio *gpio = gpiochip_get_data(chip); 194 void __iomem *base; 195 u32 value; 196 197 base = tegra186_gpio_get_base(gpio, offset); 198 if (WARN_ON(base == NULL)) 199 return; 200 201 value = readl(base + TEGRA186_GPIO_OUTPUT_VALUE); 202 if (level == 0) 203 value &= ~TEGRA186_GPIO_OUTPUT_VALUE_HIGH; 204 else 205 value |= TEGRA186_GPIO_OUTPUT_VALUE_HIGH; 206 207 writel(value, base + TEGRA186_GPIO_OUTPUT_VALUE); 208 } 209 210 static int tegra186_gpio_of_xlate(struct gpio_chip *chip, 211 const struct of_phandle_args *spec, 212 u32 *flags) 213 { 214 struct tegra_gpio *gpio = gpiochip_get_data(chip); 215 unsigned int port, pin, i, offset = 0; 216 217 if (WARN_ON(chip->of_gpio_n_cells < 2)) 218 return -EINVAL; 219 220 if (WARN_ON(spec->args_count < chip->of_gpio_n_cells)) 221 return -EINVAL; 222 223 port = spec->args[0] / 8; 224 pin = spec->args[0] % 8; 225 226 if (port >= gpio->soc->num_ports) { 227 dev_err(chip->parent, "invalid port number: %u\n", port); 228 return -EINVAL; 229 } 230 231 for (i = 0; i < port; i++) 232 offset += gpio->soc->ports[i].pins; 233 234 if (flags) 235 *flags = spec->args[1]; 236 237 return offset + pin; 238 } 239 240 static void tegra186_irq_ack(struct irq_data *data) 241 { 242 struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data); 243 void __iomem *base; 244 245 base = tegra186_gpio_get_base(gpio, data->hwirq); 246 if (WARN_ON(base == NULL)) 247 return; 248 249 writel(1, base + TEGRA186_GPIO_INTERRUPT_CLEAR); 250 } 251 252 static void tegra186_irq_mask(struct irq_data *data) 253 { 254 struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data); 255 void __iomem *base; 256 u32 value; 257 258 base = tegra186_gpio_get_base(gpio, data->hwirq); 259 if (WARN_ON(base == NULL)) 260 return; 261 262 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 263 value &= ~TEGRA186_GPIO_ENABLE_CONFIG_INTERRUPT; 264 writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG); 265 } 266 267 static void tegra186_irq_unmask(struct irq_data *data) 268 { 269 struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data); 270 void __iomem *base; 271 u32 value; 272 273 base = tegra186_gpio_get_base(gpio, data->hwirq); 274 if (WARN_ON(base == NULL)) 275 return; 276 277 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 278 value |= TEGRA186_GPIO_ENABLE_CONFIG_INTERRUPT; 279 writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG); 280 } 281 282 static int tegra186_irq_set_type(struct irq_data *data, unsigned int type) 283 { 284 struct tegra_gpio *gpio = irq_data_get_irq_chip_data(data); 285 void __iomem *base; 286 u32 value; 287 288 base = tegra186_gpio_get_base(gpio, data->hwirq); 289 if (WARN_ON(base == NULL)) 290 return -ENODEV; 291 292 value = readl(base + TEGRA186_GPIO_ENABLE_CONFIG); 293 value &= ~TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_MASK; 294 value &= ~TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_LEVEL; 295 296 switch (type & IRQ_TYPE_SENSE_MASK) { 297 case IRQ_TYPE_NONE: 298 break; 299 300 case IRQ_TYPE_EDGE_RISING: 301 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_SINGLE_EDGE; 302 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_LEVEL; 303 break; 304 305 case IRQ_TYPE_EDGE_FALLING: 306 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_SINGLE_EDGE; 307 break; 308 309 case IRQ_TYPE_EDGE_BOTH: 310 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_DOUBLE_EDGE; 311 break; 312 313 case IRQ_TYPE_LEVEL_HIGH: 314 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_LEVEL; 315 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_LEVEL; 316 break; 317 318 case IRQ_TYPE_LEVEL_LOW: 319 value |= TEGRA186_GPIO_ENABLE_CONFIG_TRIGGER_TYPE_LEVEL; 320 break; 321 322 default: 323 return -EINVAL; 324 } 325 326 writel(value, base + TEGRA186_GPIO_ENABLE_CONFIG); 327 328 if ((type & IRQ_TYPE_EDGE_BOTH) == 0) 329 irq_set_handler_locked(data, handle_level_irq); 330 else 331 irq_set_handler_locked(data, handle_edge_irq); 332 333 return 0; 334 } 335 336 static void tegra186_gpio_irq(struct irq_desc *desc) 337 { 338 struct tegra_gpio *gpio = irq_desc_get_handler_data(desc); 339 struct irq_domain *domain = gpio->gpio.irq.domain; 340 struct irq_chip *chip = irq_desc_get_chip(desc); 341 unsigned int parent = irq_desc_get_irq(desc); 342 unsigned int i, offset = 0; 343 344 chained_irq_enter(chip, desc); 345 346 for (i = 0; i < gpio->soc->num_ports; i++) { 347 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; 348 void __iomem *base = gpio->base + port->offset; 349 unsigned int pin, irq; 350 unsigned long value; 351 352 /* skip ports that are not associated with this controller */ 353 if (parent != gpio->irq[port->irq]) 354 goto skip; 355 356 value = readl(base + TEGRA186_GPIO_INTERRUPT_STATUS(1)); 357 358 for_each_set_bit(pin, &value, port->pins) { 359 irq = irq_find_mapping(domain, offset + pin); 360 if (WARN_ON(irq == 0)) 361 continue; 362 363 generic_handle_irq(irq); 364 } 365 366 skip: 367 offset += port->pins; 368 } 369 370 chained_irq_exit(chip, desc); 371 } 372 373 static int tegra186_gpio_irq_domain_xlate(struct irq_domain *domain, 374 struct device_node *np, 375 const u32 *spec, unsigned int size, 376 unsigned long *hwirq, 377 unsigned int *type) 378 { 379 struct tegra_gpio *gpio = gpiochip_get_data(domain->host_data); 380 unsigned int port, pin, i, offset = 0; 381 382 if (size < 2) 383 return -EINVAL; 384 385 port = spec[0] / 8; 386 pin = spec[0] % 8; 387 388 if (port >= gpio->soc->num_ports) { 389 dev_err(gpio->gpio.parent, "invalid port number: %u\n", port); 390 return -EINVAL; 391 } 392 393 for (i = 0; i < port; i++) 394 offset += gpio->soc->ports[i].pins; 395 396 *type = spec[1] & IRQ_TYPE_SENSE_MASK; 397 *hwirq = offset + pin; 398 399 return 0; 400 } 401 402 static const struct irq_domain_ops tegra186_gpio_irq_domain_ops = { 403 .map = gpiochip_irq_map, 404 .unmap = gpiochip_irq_unmap, 405 .xlate = tegra186_gpio_irq_domain_xlate, 406 }; 407 408 static int tegra186_gpio_probe(struct platform_device *pdev) 409 { 410 unsigned int i, j, offset; 411 struct gpio_irq_chip *irq; 412 struct tegra_gpio *gpio; 413 struct resource *res; 414 char **names; 415 int err; 416 417 gpio = devm_kzalloc(&pdev->dev, sizeof(*gpio), GFP_KERNEL); 418 if (!gpio) 419 return -ENOMEM; 420 421 gpio->soc = of_device_get_match_data(&pdev->dev); 422 423 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gpio"); 424 gpio->base = devm_ioremap_resource(&pdev->dev, res); 425 if (IS_ERR(gpio->base)) 426 return PTR_ERR(gpio->base); 427 428 err = platform_irq_count(pdev); 429 if (err < 0) 430 return err; 431 432 gpio->num_irq = err; 433 434 gpio->irq = devm_kcalloc(&pdev->dev, gpio->num_irq, sizeof(*gpio->irq), 435 GFP_KERNEL); 436 if (!gpio->irq) 437 return -ENOMEM; 438 439 for (i = 0; i < gpio->num_irq; i++) { 440 err = platform_get_irq(pdev, i); 441 if (err < 0) 442 return err; 443 444 gpio->irq[i] = err; 445 } 446 447 gpio->gpio.label = gpio->soc->name; 448 gpio->gpio.parent = &pdev->dev; 449 450 gpio->gpio.get_direction = tegra186_gpio_get_direction; 451 gpio->gpio.direction_input = tegra186_gpio_direction_input; 452 gpio->gpio.direction_output = tegra186_gpio_direction_output; 453 gpio->gpio.get = tegra186_gpio_get, 454 gpio->gpio.set = tegra186_gpio_set; 455 456 gpio->gpio.base = -1; 457 458 for (i = 0; i < gpio->soc->num_ports; i++) 459 gpio->gpio.ngpio += gpio->soc->ports[i].pins; 460 461 names = devm_kcalloc(gpio->gpio.parent, gpio->gpio.ngpio, 462 sizeof(*names), GFP_KERNEL); 463 if (!names) 464 return -ENOMEM; 465 466 for (i = 0, offset = 0; i < gpio->soc->num_ports; i++) { 467 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; 468 char *name; 469 470 for (j = 0; j < port->pins; j++) { 471 name = devm_kasprintf(gpio->gpio.parent, GFP_KERNEL, 472 "P%s.%02x", port->name, j); 473 if (!name) 474 return -ENOMEM; 475 476 names[offset + j] = name; 477 } 478 479 offset += port->pins; 480 } 481 482 gpio->gpio.names = (const char * const *)names; 483 484 gpio->gpio.of_node = pdev->dev.of_node; 485 gpio->gpio.of_gpio_n_cells = 2; 486 gpio->gpio.of_xlate = tegra186_gpio_of_xlate; 487 488 gpio->intc.name = pdev->dev.of_node->name; 489 gpio->intc.irq_ack = tegra186_irq_ack; 490 gpio->intc.irq_mask = tegra186_irq_mask; 491 gpio->intc.irq_unmask = tegra186_irq_unmask; 492 gpio->intc.irq_set_type = tegra186_irq_set_type; 493 494 irq = &gpio->gpio.irq; 495 irq->chip = &gpio->intc; 496 irq->domain_ops = &tegra186_gpio_irq_domain_ops; 497 irq->handler = handle_simple_irq; 498 irq->default_type = IRQ_TYPE_NONE; 499 irq->parent_handler = tegra186_gpio_irq; 500 irq->parent_handler_data = gpio; 501 irq->num_parents = gpio->num_irq; 502 irq->parents = gpio->irq; 503 504 irq->map = devm_kcalloc(&pdev->dev, gpio->gpio.ngpio, 505 sizeof(*irq->map), GFP_KERNEL); 506 if (!irq->map) 507 return -ENOMEM; 508 509 for (i = 0, offset = 0; i < gpio->soc->num_ports; i++) { 510 const struct tegra_gpio_port *port = &gpio->soc->ports[i]; 511 512 for (j = 0; j < port->pins; j++) 513 irq->map[offset + j] = irq->parents[port->irq]; 514 515 offset += port->pins; 516 } 517 518 platform_set_drvdata(pdev, gpio); 519 520 err = devm_gpiochip_add_data(&pdev->dev, &gpio->gpio, gpio); 521 if (err < 0) 522 return err; 523 524 return 0; 525 } 526 527 static int tegra186_gpio_remove(struct platform_device *pdev) 528 { 529 return 0; 530 } 531 532 #define TEGRA_MAIN_GPIO_PORT(port, base, count, controller) \ 533 [TEGRA_MAIN_GPIO_PORT_##port] = { \ 534 .name = #port, \ 535 .offset = base, \ 536 .pins = count, \ 537 .irq = controller, \ 538 } 539 540 static const struct tegra_gpio_port tegra186_main_ports[] = { 541 TEGRA_MAIN_GPIO_PORT( A, 0x2000, 7, 2), 542 TEGRA_MAIN_GPIO_PORT( B, 0x3000, 7, 3), 543 TEGRA_MAIN_GPIO_PORT( C, 0x3200, 7, 3), 544 TEGRA_MAIN_GPIO_PORT( D, 0x3400, 6, 3), 545 TEGRA_MAIN_GPIO_PORT( E, 0x2200, 8, 2), 546 TEGRA_MAIN_GPIO_PORT( F, 0x2400, 6, 2), 547 TEGRA_MAIN_GPIO_PORT( G, 0x4200, 6, 4), 548 TEGRA_MAIN_GPIO_PORT( H, 0x1000, 7, 1), 549 TEGRA_MAIN_GPIO_PORT( I, 0x0800, 8, 0), 550 TEGRA_MAIN_GPIO_PORT( J, 0x5000, 8, 5), 551 TEGRA_MAIN_GPIO_PORT( K, 0x5200, 1, 5), 552 TEGRA_MAIN_GPIO_PORT( L, 0x1200, 8, 1), 553 TEGRA_MAIN_GPIO_PORT( M, 0x5600, 6, 5), 554 TEGRA_MAIN_GPIO_PORT( N, 0x0000, 7, 0), 555 TEGRA_MAIN_GPIO_PORT( O, 0x0200, 4, 0), 556 TEGRA_MAIN_GPIO_PORT( P, 0x4000, 7, 4), 557 TEGRA_MAIN_GPIO_PORT( Q, 0x0400, 6, 0), 558 TEGRA_MAIN_GPIO_PORT( R, 0x0a00, 6, 0), 559 TEGRA_MAIN_GPIO_PORT( T, 0x0600, 4, 0), 560 TEGRA_MAIN_GPIO_PORT( X, 0x1400, 8, 1), 561 TEGRA_MAIN_GPIO_PORT( Y, 0x1600, 7, 1), 562 TEGRA_MAIN_GPIO_PORT(BB, 0x2600, 2, 2), 563 TEGRA_MAIN_GPIO_PORT(CC, 0x5400, 4, 5), 564 }; 565 566 static const struct tegra_gpio_soc tegra186_main_soc = { 567 .num_ports = ARRAY_SIZE(tegra186_main_ports), 568 .ports = tegra186_main_ports, 569 .name = "tegra186-gpio", 570 }; 571 572 #define TEGRA_AON_GPIO_PORT(port, base, count, controller) \ 573 [TEGRA_AON_GPIO_PORT_##port] = { \ 574 .name = #port, \ 575 .offset = base, \ 576 .pins = count, \ 577 .irq = controller, \ 578 } 579 580 static const struct tegra_gpio_port tegra186_aon_ports[] = { 581 TEGRA_AON_GPIO_PORT( S, 0x0200, 5, 0), 582 TEGRA_AON_GPIO_PORT( U, 0x0400, 6, 0), 583 TEGRA_AON_GPIO_PORT( V, 0x0800, 8, 0), 584 TEGRA_AON_GPIO_PORT( W, 0x0a00, 8, 0), 585 TEGRA_AON_GPIO_PORT( Z, 0x0e00, 4, 0), 586 TEGRA_AON_GPIO_PORT(AA, 0x0c00, 8, 0), 587 TEGRA_AON_GPIO_PORT(EE, 0x0600, 3, 0), 588 TEGRA_AON_GPIO_PORT(FF, 0x0000, 5, 0), 589 }; 590 591 static const struct tegra_gpio_soc tegra186_aon_soc = { 592 .num_ports = ARRAY_SIZE(tegra186_aon_ports), 593 .ports = tegra186_aon_ports, 594 .name = "tegra186-gpio-aon", 595 }; 596 597 #define TEGRA194_MAIN_GPIO_PORT(port, base, count, controller) \ 598 [TEGRA194_MAIN_GPIO_PORT_##port] = { \ 599 .name = #port, \ 600 .offset = base, \ 601 .pins = count, \ 602 .irq = controller, \ 603 } 604 605 static const struct tegra_gpio_port tegra194_main_ports[] = { 606 TEGRA194_MAIN_GPIO_PORT( A, 0x1400, 8, 1), 607 TEGRA194_MAIN_GPIO_PORT( B, 0x4e00, 2, 4), 608 TEGRA194_MAIN_GPIO_PORT( C, 0x4600, 8, 4), 609 TEGRA194_MAIN_GPIO_PORT( D, 0x4800, 4, 4), 610 TEGRA194_MAIN_GPIO_PORT( E, 0x4a00, 8, 4), 611 TEGRA194_MAIN_GPIO_PORT( F, 0x4c00, 6, 4), 612 TEGRA194_MAIN_GPIO_PORT( G, 0x4000, 8, 4), 613 TEGRA194_MAIN_GPIO_PORT( H, 0x4200, 8, 4), 614 TEGRA194_MAIN_GPIO_PORT( I, 0x4400, 5, 4), 615 TEGRA194_MAIN_GPIO_PORT( J, 0x5200, 6, 5), 616 TEGRA194_MAIN_GPIO_PORT( K, 0x3000, 8, 3), 617 TEGRA194_MAIN_GPIO_PORT( L, 0x3200, 4, 3), 618 TEGRA194_MAIN_GPIO_PORT( M, 0x2600, 8, 2), 619 TEGRA194_MAIN_GPIO_PORT( N, 0x2800, 3, 2), 620 TEGRA194_MAIN_GPIO_PORT( O, 0x5000, 6, 5), 621 TEGRA194_MAIN_GPIO_PORT( P, 0x2a00, 8, 2), 622 TEGRA194_MAIN_GPIO_PORT( Q, 0x2c00, 8, 2), 623 TEGRA194_MAIN_GPIO_PORT( R, 0x2e00, 6, 2), 624 TEGRA194_MAIN_GPIO_PORT( S, 0x3600, 8, 3), 625 TEGRA194_MAIN_GPIO_PORT( T, 0x3800, 8, 3), 626 TEGRA194_MAIN_GPIO_PORT( U, 0x3a00, 1, 3), 627 TEGRA194_MAIN_GPIO_PORT( V, 0x1000, 8, 1), 628 TEGRA194_MAIN_GPIO_PORT( W, 0x1200, 2, 1), 629 TEGRA194_MAIN_GPIO_PORT( X, 0x2000, 8, 2), 630 TEGRA194_MAIN_GPIO_PORT( Y, 0x2200, 8, 2), 631 TEGRA194_MAIN_GPIO_PORT( Z, 0x2400, 8, 2), 632 TEGRA194_MAIN_GPIO_PORT(FF, 0x3400, 2, 3), 633 TEGRA194_MAIN_GPIO_PORT(GG, 0x0000, 2, 0) 634 }; 635 636 static const struct tegra_gpio_soc tegra194_main_soc = { 637 .num_ports = ARRAY_SIZE(tegra194_main_ports), 638 .ports = tegra194_main_ports, 639 .name = "tegra194-gpio", 640 }; 641 642 #define TEGRA194_AON_GPIO_PORT(port, base, count, controller) \ 643 [TEGRA194_AON_GPIO_PORT_##port] = { \ 644 .name = #port, \ 645 .offset = base, \ 646 .pins = count, \ 647 .irq = controller, \ 648 } 649 650 static const struct tegra_gpio_port tegra194_aon_ports[] = { 651 TEGRA194_AON_GPIO_PORT(AA, 0x0600, 8, 0), 652 TEGRA194_AON_GPIO_PORT(BB, 0x0800, 4, 0), 653 TEGRA194_AON_GPIO_PORT(CC, 0x0200, 8, 0), 654 TEGRA194_AON_GPIO_PORT(DD, 0x0400, 3, 0), 655 TEGRA194_AON_GPIO_PORT(EE, 0x0000, 7, 0) 656 }; 657 658 static const struct tegra_gpio_soc tegra194_aon_soc = { 659 .num_ports = ARRAY_SIZE(tegra194_aon_ports), 660 .ports = tegra194_aon_ports, 661 .name = "tegra194-gpio-aon", 662 }; 663 664 static const struct of_device_id tegra186_gpio_of_match[] = { 665 { 666 .compatible = "nvidia,tegra186-gpio", 667 .data = &tegra186_main_soc 668 }, { 669 .compatible = "nvidia,tegra186-gpio-aon", 670 .data = &tegra186_aon_soc 671 }, { 672 .compatible = "nvidia,tegra194-gpio", 673 .data = &tegra194_main_soc 674 }, { 675 .compatible = "nvidia,tegra194-gpio-aon", 676 .data = &tegra194_aon_soc 677 }, { 678 /* sentinel */ 679 } 680 }; 681 682 static struct platform_driver tegra186_gpio_driver = { 683 .driver = { 684 .name = "tegra186-gpio", 685 .of_match_table = tegra186_gpio_of_match, 686 }, 687 .probe = tegra186_gpio_probe, 688 .remove = tegra186_gpio_remove, 689 }; 690 module_platform_driver(tegra186_gpio_driver); 691 692 MODULE_DESCRIPTION("NVIDIA Tegra186 GPIO controller driver"); 693 MODULE_AUTHOR("Thierry Reding <treding@nvidia.com>"); 694 MODULE_LICENSE("GPL v2"); 695