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 *
tegra186_gpio_get_port(struct tegra_gpio * gpio,unsigned int * pin)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
tegra186_gpio_get_base(struct tegra_gpio * gpio,unsigned int pin)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
tegra186_gpio_get_direction(struct gpio_chip * chip,unsigned int offset)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
tegra186_gpio_direction_input(struct gpio_chip * chip,unsigned int offset)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
tegra186_gpio_direction_output(struct gpio_chip * chip,unsigned int offset,int level)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
tegra186_gpio_get(struct gpio_chip * chip,unsigned int offset)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
tegra186_gpio_set(struct gpio_chip * chip,unsigned int offset,int level)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
tegra186_gpio_of_xlate(struct gpio_chip * chip,const struct of_phandle_args * spec,u32 * flags)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
tegra186_irq_ack(struct irq_data * data)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
tegra186_irq_mask(struct irq_data * data)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
tegra186_irq_unmask(struct irq_data * data)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
tegra186_irq_set_type(struct irq_data * data,unsigned int flow)282 static int tegra186_irq_set_type(struct irq_data *data, unsigned int flow)
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 (flow & 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 ((flow & 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
tegra186_gpio_irq(struct irq_desc * desc)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
tegra186_gpio_irq_domain_xlate(struct irq_domain * domain,struct device_node * np,const u32 * spec,unsigned int size,unsigned long * hwirq,unsigned int * type)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
tegra186_gpio_probe(struct platform_device * pdev)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
tegra186_gpio_remove(struct platform_device * pdev)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
