1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * Driver for BCM63268 GPIO unit (pinctrl + GPIO)
4 *
5 * Copyright (C) 2021 Álvaro Fernández Rojas <noltari@gmail.com>
6 * Copyright (C) 2016 Jonas Gorski <jonas.gorski@gmail.com>
7 */
8
9 #include <linux/bits.h>
10 #include <linux/gpio/driver.h>
11 #include <linux/kernel.h>
12 #include <linux/of.h>
13 #include <linux/pinctrl/pinmux.h>
14 #include <linux/platform_device.h>
15 #include <linux/regmap.h>
16
17 #include "../pinctrl-utils.h"
18
19 #include "pinctrl-bcm63xx.h"
20
21 #define BCM63268_NUM_GPIOS 52
22 #define BCM63268_NUM_LEDS 24
23
24 #define BCM63268_LED_REG 0x10
25 #define BCM63268_MODE_REG 0x18
26 #define BCM63268_CTRL_REG 0x1c
27 #define BCM63268_BASEMODE_REG 0x38
28 #define BCM63268_BASEMODE_NAND BIT(2) /* GPIOs 2-7, 24-31 */
29 #define BCM63268_BASEMODE_GPIO35 BIT(4) /* GPIO 35 */
30 #define BCM63268_BASEMODE_DECTPD BIT(5) /* GPIOs 8/9 */
31 #define BCM63268_BASEMODE_VDSL_PHY_0 BIT(6) /* GPIOs 10/11 */
32 #define BCM63268_BASEMODE_VDSL_PHY_1 BIT(7) /* GPIOs 12/13 */
33 #define BCM63268_BASEMODE_VDSL_PHY_2 BIT(8) /* GPIOs 24/25 */
34 #define BCM63268_BASEMODE_VDSL_PHY_3 BIT(9) /* GPIOs 26/27 */
35
36 enum bcm63268_pinctrl_reg {
37 BCM63268_LEDCTRL,
38 BCM63268_MODE,
39 BCM63268_CTRL,
40 BCM63268_BASEMODE,
41 };
42
43 struct bcm63268_function {
44 const char *name;
45 const char * const *groups;
46 const unsigned num_groups;
47
48 enum bcm63268_pinctrl_reg reg;
49 uint32_t mask;
50 };
51
52 #define BCM63268_PIN(a, b, basemode) \
53 { \
54 .number = a, \
55 .name = b, \
56 .drv_data = (void *)(basemode) \
57 }
58
59 static const struct pinctrl_pin_desc bcm63268_pins[] = {
60 PINCTRL_PIN(0, "gpio0"),
61 PINCTRL_PIN(1, "gpio1"),
62 BCM63268_PIN(2, "gpio2", BCM63268_BASEMODE_NAND),
63 BCM63268_PIN(3, "gpio3", BCM63268_BASEMODE_NAND),
64 BCM63268_PIN(4, "gpio4", BCM63268_BASEMODE_NAND),
65 BCM63268_PIN(5, "gpio5", BCM63268_BASEMODE_NAND),
66 BCM63268_PIN(6, "gpio6", BCM63268_BASEMODE_NAND),
67 BCM63268_PIN(7, "gpio7", BCM63268_BASEMODE_NAND),
68 BCM63268_PIN(8, "gpio8", BCM63268_BASEMODE_DECTPD),
69 BCM63268_PIN(9, "gpio9", BCM63268_BASEMODE_DECTPD),
70 BCM63268_PIN(10, "gpio10", BCM63268_BASEMODE_VDSL_PHY_0),
71 BCM63268_PIN(11, "gpio11", BCM63268_BASEMODE_VDSL_PHY_0),
72 BCM63268_PIN(12, "gpio12", BCM63268_BASEMODE_VDSL_PHY_1),
73 BCM63268_PIN(13, "gpio13", BCM63268_BASEMODE_VDSL_PHY_1),
74 PINCTRL_PIN(14, "gpio14"),
75 PINCTRL_PIN(15, "gpio15"),
76 PINCTRL_PIN(16, "gpio16"),
77 PINCTRL_PIN(17, "gpio17"),
78 PINCTRL_PIN(18, "gpio18"),
79 PINCTRL_PIN(19, "gpio19"),
80 PINCTRL_PIN(20, "gpio20"),
81 PINCTRL_PIN(21, "gpio21"),
82 PINCTRL_PIN(22, "gpio22"),
83 PINCTRL_PIN(23, "gpio23"),
84 BCM63268_PIN(24, "gpio24",
85 BCM63268_BASEMODE_NAND | BCM63268_BASEMODE_VDSL_PHY_2),
86 BCM63268_PIN(25, "gpio25",
87 BCM63268_BASEMODE_NAND | BCM63268_BASEMODE_VDSL_PHY_2),
88 BCM63268_PIN(26, "gpio26",
89 BCM63268_BASEMODE_NAND | BCM63268_BASEMODE_VDSL_PHY_3),
90 BCM63268_PIN(27, "gpio27",
91 BCM63268_BASEMODE_NAND | BCM63268_BASEMODE_VDSL_PHY_3),
92 BCM63268_PIN(28, "gpio28", BCM63268_BASEMODE_NAND),
93 BCM63268_PIN(29, "gpio29", BCM63268_BASEMODE_NAND),
94 BCM63268_PIN(30, "gpio30", BCM63268_BASEMODE_NAND),
95 BCM63268_PIN(31, "gpio31", BCM63268_BASEMODE_NAND),
96 PINCTRL_PIN(32, "gpio32"),
97 PINCTRL_PIN(33, "gpio33"),
98 PINCTRL_PIN(34, "gpio34"),
99 PINCTRL_PIN(35, "gpio35"),
100 PINCTRL_PIN(36, "gpio36"),
101 PINCTRL_PIN(37, "gpio37"),
102 PINCTRL_PIN(38, "gpio38"),
103 PINCTRL_PIN(39, "gpio39"),
104 PINCTRL_PIN(40, "gpio40"),
105 PINCTRL_PIN(41, "gpio41"),
106 PINCTRL_PIN(42, "gpio42"),
107 PINCTRL_PIN(43, "gpio43"),
108 PINCTRL_PIN(44, "gpio44"),
109 PINCTRL_PIN(45, "gpio45"),
110 PINCTRL_PIN(46, "gpio46"),
111 PINCTRL_PIN(47, "gpio47"),
112 PINCTRL_PIN(48, "gpio48"),
113 PINCTRL_PIN(49, "gpio49"),
114 PINCTRL_PIN(50, "gpio50"),
115 PINCTRL_PIN(51, "gpio51"),
116 };
117
118 static unsigned gpio0_pins[] = { 0 };
119 static unsigned gpio1_pins[] = { 1 };
120 static unsigned gpio2_pins[] = { 2 };
121 static unsigned gpio3_pins[] = { 3 };
122 static unsigned gpio4_pins[] = { 4 };
123 static unsigned gpio5_pins[] = { 5 };
124 static unsigned gpio6_pins[] = { 6 };
125 static unsigned gpio7_pins[] = { 7 };
126 static unsigned gpio8_pins[] = { 8 };
127 static unsigned gpio9_pins[] = { 9 };
128 static unsigned gpio10_pins[] = { 10 };
129 static unsigned gpio11_pins[] = { 11 };
130 static unsigned gpio12_pins[] = { 12 };
131 static unsigned gpio13_pins[] = { 13 };
132 static unsigned gpio14_pins[] = { 14 };
133 static unsigned gpio15_pins[] = { 15 };
134 static unsigned gpio16_pins[] = { 16 };
135 static unsigned gpio17_pins[] = { 17 };
136 static unsigned gpio18_pins[] = { 18 };
137 static unsigned gpio19_pins[] = { 19 };
138 static unsigned gpio20_pins[] = { 20 };
139 static unsigned gpio21_pins[] = { 21 };
140 static unsigned gpio22_pins[] = { 22 };
141 static unsigned gpio23_pins[] = { 23 };
142 static unsigned gpio24_pins[] = { 24 };
143 static unsigned gpio25_pins[] = { 25 };
144 static unsigned gpio26_pins[] = { 26 };
145 static unsigned gpio27_pins[] = { 27 };
146 static unsigned gpio28_pins[] = { 28 };
147 static unsigned gpio29_pins[] = { 29 };
148 static unsigned gpio30_pins[] = { 30 };
149 static unsigned gpio31_pins[] = { 31 };
150 static unsigned gpio32_pins[] = { 32 };
151 static unsigned gpio33_pins[] = { 33 };
152 static unsigned gpio34_pins[] = { 34 };
153 static unsigned gpio35_pins[] = { 35 };
154 static unsigned gpio36_pins[] = { 36 };
155 static unsigned gpio37_pins[] = { 37 };
156 static unsigned gpio38_pins[] = { 38 };
157 static unsigned gpio39_pins[] = { 39 };
158 static unsigned gpio40_pins[] = { 40 };
159 static unsigned gpio41_pins[] = { 41 };
160 static unsigned gpio42_pins[] = { 42 };
161 static unsigned gpio43_pins[] = { 43 };
162 static unsigned gpio44_pins[] = { 44 };
163 static unsigned gpio45_pins[] = { 45 };
164 static unsigned gpio46_pins[] = { 46 };
165 static unsigned gpio47_pins[] = { 47 };
166 static unsigned gpio48_pins[] = { 48 };
167 static unsigned gpio49_pins[] = { 49 };
168 static unsigned gpio50_pins[] = { 50 };
169 static unsigned gpio51_pins[] = { 51 };
170
171 static unsigned nand_grp_pins[] = {
172 2, 3, 4, 5, 6, 7, 24,
173 25, 26, 27, 28, 29, 30, 31,
174 };
175
176 static unsigned dectpd_grp_pins[] = { 8, 9 };
177 static unsigned vdsl_phy0_grp_pins[] = { 10, 11 };
178 static unsigned vdsl_phy1_grp_pins[] = { 12, 13 };
179 static unsigned vdsl_phy2_grp_pins[] = { 24, 25 };
180 static unsigned vdsl_phy3_grp_pins[] = { 26, 27 };
181
182 static struct pingroup bcm63268_groups[] = {
183 BCM_PIN_GROUP(gpio0),
184 BCM_PIN_GROUP(gpio1),
185 BCM_PIN_GROUP(gpio2),
186 BCM_PIN_GROUP(gpio3),
187 BCM_PIN_GROUP(gpio4),
188 BCM_PIN_GROUP(gpio5),
189 BCM_PIN_GROUP(gpio6),
190 BCM_PIN_GROUP(gpio7),
191 BCM_PIN_GROUP(gpio8),
192 BCM_PIN_GROUP(gpio9),
193 BCM_PIN_GROUP(gpio10),
194 BCM_PIN_GROUP(gpio11),
195 BCM_PIN_GROUP(gpio12),
196 BCM_PIN_GROUP(gpio13),
197 BCM_PIN_GROUP(gpio14),
198 BCM_PIN_GROUP(gpio15),
199 BCM_PIN_GROUP(gpio16),
200 BCM_PIN_GROUP(gpio17),
201 BCM_PIN_GROUP(gpio18),
202 BCM_PIN_GROUP(gpio19),
203 BCM_PIN_GROUP(gpio20),
204 BCM_PIN_GROUP(gpio21),
205 BCM_PIN_GROUP(gpio22),
206 BCM_PIN_GROUP(gpio23),
207 BCM_PIN_GROUP(gpio24),
208 BCM_PIN_GROUP(gpio25),
209 BCM_PIN_GROUP(gpio26),
210 BCM_PIN_GROUP(gpio27),
211 BCM_PIN_GROUP(gpio28),
212 BCM_PIN_GROUP(gpio29),
213 BCM_PIN_GROUP(gpio30),
214 BCM_PIN_GROUP(gpio31),
215 BCM_PIN_GROUP(gpio32),
216 BCM_PIN_GROUP(gpio33),
217 BCM_PIN_GROUP(gpio34),
218 BCM_PIN_GROUP(gpio35),
219 BCM_PIN_GROUP(gpio36),
220 BCM_PIN_GROUP(gpio37),
221 BCM_PIN_GROUP(gpio38),
222 BCM_PIN_GROUP(gpio39),
223 BCM_PIN_GROUP(gpio40),
224 BCM_PIN_GROUP(gpio41),
225 BCM_PIN_GROUP(gpio42),
226 BCM_PIN_GROUP(gpio43),
227 BCM_PIN_GROUP(gpio44),
228 BCM_PIN_GROUP(gpio45),
229 BCM_PIN_GROUP(gpio46),
230 BCM_PIN_GROUP(gpio47),
231 BCM_PIN_GROUP(gpio48),
232 BCM_PIN_GROUP(gpio49),
233 BCM_PIN_GROUP(gpio50),
234 BCM_PIN_GROUP(gpio51),
235
236 /* multi pin groups */
237 BCM_PIN_GROUP(nand_grp),
238 BCM_PIN_GROUP(dectpd_grp),
239 BCM_PIN_GROUP(vdsl_phy0_grp),
240 BCM_PIN_GROUP(vdsl_phy1_grp),
241 BCM_PIN_GROUP(vdsl_phy2_grp),
242 BCM_PIN_GROUP(vdsl_phy3_grp),
243 };
244
245 static const char * const led_groups[] = {
246 "gpio0",
247 "gpio1",
248 "gpio2",
249 "gpio3",
250 "gpio4",
251 "gpio5",
252 "gpio6",
253 "gpio7",
254 "gpio8",
255 "gpio9",
256 "gpio10",
257 "gpio11",
258 "gpio12",
259 "gpio13",
260 "gpio14",
261 "gpio15",
262 "gpio16",
263 "gpio17",
264 "gpio18",
265 "gpio19",
266 "gpio20",
267 "gpio21",
268 "gpio22",
269 "gpio23",
270 };
271
272 static const char * const serial_led_clk_groups[] = {
273 "gpio0",
274 };
275
276 static const char * const serial_led_data_groups[] = {
277 "gpio1",
278 };
279
280 static const char * const hsspi_cs4_groups[] = {
281 "gpio16",
282 };
283
284 static const char * const hsspi_cs5_groups[] = {
285 "gpio17",
286 };
287
288 static const char * const hsspi_cs6_groups[] = {
289 "gpio8",
290 };
291
292 static const char * const hsspi_cs7_groups[] = {
293 "gpio9",
294 };
295
296 static const char * const uart1_scts_groups[] = {
297 "gpio10",
298 "gpio24",
299 };
300
301 static const char * const uart1_srts_groups[] = {
302 "gpio11",
303 "gpio25",
304 };
305
306 static const char * const uart1_sdin_groups[] = {
307 "gpio12",
308 "gpio26",
309 };
310
311 static const char * const uart1_sdout_groups[] = {
312 "gpio13",
313 "gpio27",
314 };
315
316 static const char * const ntr_pulse_in_groups[] = {
317 "gpio14",
318 "gpio28",
319 };
320
321 static const char * const dsl_ntr_pulse_out_groups[] = {
322 "gpio15",
323 "gpio29",
324 };
325
326 static const char * const adsl_spi_miso_groups[] = {
327 "gpio18",
328 };
329
330 static const char * const adsl_spi_mosi_groups[] = {
331 "gpio19",
332 };
333
334 static const char * const vreg_clk_groups[] = {
335 "gpio22",
336 };
337
338 static const char * const pcie_clkreq_b_groups[] = {
339 "gpio23",
340 };
341
342 static const char * const switch_led_clk_groups[] = {
343 "gpio30",
344 };
345
346 static const char * const switch_led_data_groups[] = {
347 "gpio31",
348 };
349
350 static const char * const wifi_groups[] = {
351 "gpio32",
352 "gpio33",
353 "gpio34",
354 "gpio35",
355 "gpio36",
356 "gpio37",
357 "gpio38",
358 "gpio39",
359 "gpio40",
360 "gpio41",
361 "gpio42",
362 "gpio43",
363 "gpio44",
364 "gpio45",
365 "gpio46",
366 "gpio47",
367 "gpio48",
368 "gpio49",
369 "gpio50",
370 "gpio51",
371 };
372
373 static const char * const nand_groups[] = {
374 "nand_grp",
375 };
376
377 static const char * const dectpd_groups[] = {
378 "dectpd_grp",
379 };
380
381 static const char * const vdsl_phy_override_0_groups[] = {
382 "vdsl_phy_override_0_grp",
383 };
384
385 static const char * const vdsl_phy_override_1_groups[] = {
386 "vdsl_phy_override_1_grp",
387 };
388
389 static const char * const vdsl_phy_override_2_groups[] = {
390 "vdsl_phy_override_2_grp",
391 };
392
393 static const char * const vdsl_phy_override_3_groups[] = {
394 "vdsl_phy_override_3_grp",
395 };
396
397 #define BCM63268_LED_FUN(n) \
398 { \
399 .name = #n, \
400 .groups = n##_groups, \
401 .num_groups = ARRAY_SIZE(n##_groups), \
402 .reg = BCM63268_LEDCTRL, \
403 }
404
405 #define BCM63268_MODE_FUN(n) \
406 { \
407 .name = #n, \
408 .groups = n##_groups, \
409 .num_groups = ARRAY_SIZE(n##_groups), \
410 .reg = BCM63268_MODE, \
411 }
412
413 #define BCM63268_CTRL_FUN(n) \
414 { \
415 .name = #n, \
416 .groups = n##_groups, \
417 .num_groups = ARRAY_SIZE(n##_groups), \
418 .reg = BCM63268_CTRL, \
419 }
420
421 #define BCM63268_BASEMODE_FUN(n, val) \
422 { \
423 .name = #n, \
424 .groups = n##_groups, \
425 .num_groups = ARRAY_SIZE(n##_groups), \
426 .reg = BCM63268_BASEMODE, \
427 .mask = val, \
428 }
429
430 static const struct bcm63268_function bcm63268_funcs[] = {
431 BCM63268_LED_FUN(led),
432 BCM63268_MODE_FUN(serial_led_clk),
433 BCM63268_MODE_FUN(serial_led_data),
434 BCM63268_MODE_FUN(hsspi_cs6),
435 BCM63268_MODE_FUN(hsspi_cs7),
436 BCM63268_MODE_FUN(uart1_scts),
437 BCM63268_MODE_FUN(uart1_srts),
438 BCM63268_MODE_FUN(uart1_sdin),
439 BCM63268_MODE_FUN(uart1_sdout),
440 BCM63268_MODE_FUN(ntr_pulse_in),
441 BCM63268_MODE_FUN(dsl_ntr_pulse_out),
442 BCM63268_MODE_FUN(hsspi_cs4),
443 BCM63268_MODE_FUN(hsspi_cs5),
444 BCM63268_MODE_FUN(adsl_spi_miso),
445 BCM63268_MODE_FUN(adsl_spi_mosi),
446 BCM63268_MODE_FUN(vreg_clk),
447 BCM63268_MODE_FUN(pcie_clkreq_b),
448 BCM63268_MODE_FUN(switch_led_clk),
449 BCM63268_MODE_FUN(switch_led_data),
450 BCM63268_CTRL_FUN(wifi),
451 BCM63268_BASEMODE_FUN(nand, BCM63268_BASEMODE_NAND),
452 BCM63268_BASEMODE_FUN(dectpd, BCM63268_BASEMODE_DECTPD),
453 BCM63268_BASEMODE_FUN(vdsl_phy_override_0,
454 BCM63268_BASEMODE_VDSL_PHY_0),
455 BCM63268_BASEMODE_FUN(vdsl_phy_override_1,
456 BCM63268_BASEMODE_VDSL_PHY_1),
457 BCM63268_BASEMODE_FUN(vdsl_phy_override_2,
458 BCM63268_BASEMODE_VDSL_PHY_2),
459 BCM63268_BASEMODE_FUN(vdsl_phy_override_3,
460 BCM63268_BASEMODE_VDSL_PHY_3),
461 };
462
bcm63268_pinctrl_get_group_count(struct pinctrl_dev * pctldev)463 static int bcm63268_pinctrl_get_group_count(struct pinctrl_dev *pctldev)
464 {
465 return ARRAY_SIZE(bcm63268_groups);
466 }
467
bcm63268_pinctrl_get_group_name(struct pinctrl_dev * pctldev,unsigned group)468 static const char *bcm63268_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
469 unsigned group)
470 {
471 return bcm63268_groups[group].name;
472 }
473
bcm63268_pinctrl_get_group_pins(struct pinctrl_dev * pctldev,unsigned group,const unsigned ** pins,unsigned * npins)474 static int bcm63268_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
475 unsigned group,
476 const unsigned **pins,
477 unsigned *npins)
478 {
479 *pins = bcm63268_groups[group].pins;
480 *npins = bcm63268_groups[group].npins;
481
482 return 0;
483 }
484
bcm63268_pinctrl_get_func_count(struct pinctrl_dev * pctldev)485 static int bcm63268_pinctrl_get_func_count(struct pinctrl_dev *pctldev)
486 {
487 return ARRAY_SIZE(bcm63268_funcs);
488 }
489
bcm63268_pinctrl_get_func_name(struct pinctrl_dev * pctldev,unsigned selector)490 static const char *bcm63268_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
491 unsigned selector)
492 {
493 return bcm63268_funcs[selector].name;
494 }
495
bcm63268_pinctrl_get_groups(struct pinctrl_dev * pctldev,unsigned selector,const char * const ** groups,unsigned * const num_groups)496 static int bcm63268_pinctrl_get_groups(struct pinctrl_dev *pctldev,
497 unsigned selector,
498 const char * const **groups,
499 unsigned * const num_groups)
500 {
501 *groups = bcm63268_funcs[selector].groups;
502 *num_groups = bcm63268_funcs[selector].num_groups;
503
504 return 0;
505 }
506
bcm63268_set_gpio(struct bcm63xx_pinctrl * pc,unsigned pin)507 static void bcm63268_set_gpio(struct bcm63xx_pinctrl *pc, unsigned pin)
508 {
509 const struct pinctrl_pin_desc *desc = &bcm63268_pins[pin];
510 unsigned int basemode = (unsigned long) desc->drv_data;
511 unsigned int mask = BIT(bcm63xx_bank_pin(pin));
512
513 if (basemode)
514 regmap_update_bits(pc->regs, BCM63268_BASEMODE_REG, basemode,
515 0);
516
517 if (pin < BCM63XX_BANK_GPIOS) {
518 /* base mode: 0 => gpio, 1 => mux function */
519 regmap_update_bits(pc->regs, BCM63268_MODE_REG, mask, 0);
520
521 /* pins 0-23 might be muxed to led */
522 if (pin < BCM63268_NUM_LEDS)
523 regmap_update_bits(pc->regs, BCM63268_LED_REG, mask,
524 0);
525 } else if (pin < BCM63268_NUM_GPIOS) {
526 /* ctrl reg: 0 => wifi function, 1 => gpio */
527 regmap_update_bits(pc->regs, BCM63268_CTRL_REG, mask, mask);
528 }
529 }
530
bcm63268_pinctrl_set_mux(struct pinctrl_dev * pctldev,unsigned selector,unsigned group)531 static int bcm63268_pinctrl_set_mux(struct pinctrl_dev *pctldev,
532 unsigned selector, unsigned group)
533 {
534 struct bcm63xx_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
535 const struct pingroup *pg = &bcm63268_groups[group];
536 const struct bcm63268_function *f = &bcm63268_funcs[selector];
537 unsigned i;
538 unsigned int reg;
539 unsigned int val, mask;
540
541 for (i = 0; i < pg->npins; i++)
542 bcm63268_set_gpio(pc, pg->pins[i]);
543
544 switch (f->reg) {
545 case BCM63268_LEDCTRL:
546 reg = BCM63268_LED_REG;
547 mask = BIT(pg->pins[0]);
548 val = BIT(pg->pins[0]);
549 break;
550 case BCM63268_MODE:
551 reg = BCM63268_MODE_REG;
552 mask = BIT(pg->pins[0]);
553 val = BIT(pg->pins[0]);
554 break;
555 case BCM63268_CTRL:
556 reg = BCM63268_CTRL_REG;
557 mask = BIT(pg->pins[0]);
558 val = 0;
559 break;
560 case BCM63268_BASEMODE:
561 reg = BCM63268_BASEMODE_REG;
562 mask = f->mask;
563 val = f->mask;
564 break;
565 default:
566 WARN_ON(1);
567 return -EINVAL;
568 }
569
570 regmap_update_bits(pc->regs, reg, mask, val);
571
572 return 0;
573 }
574
bcm63268_gpio_request_enable(struct pinctrl_dev * pctldev,struct pinctrl_gpio_range * range,unsigned offset)575 static int bcm63268_gpio_request_enable(struct pinctrl_dev *pctldev,
576 struct pinctrl_gpio_range *range,
577 unsigned offset)
578 {
579 struct bcm63xx_pinctrl *pc = pinctrl_dev_get_drvdata(pctldev);
580
581 /* disable all functions using this pin */
582 bcm63268_set_gpio(pc, offset);
583
584 return 0;
585 }
586
587 static const struct pinctrl_ops bcm63268_pctl_ops = {
588 .dt_free_map = pinctrl_utils_free_map,
589 .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
590 .get_group_name = bcm63268_pinctrl_get_group_name,
591 .get_group_pins = bcm63268_pinctrl_get_group_pins,
592 .get_groups_count = bcm63268_pinctrl_get_group_count,
593 };
594
595 static const struct pinmux_ops bcm63268_pmx_ops = {
596 .get_function_groups = bcm63268_pinctrl_get_groups,
597 .get_function_name = bcm63268_pinctrl_get_func_name,
598 .get_functions_count = bcm63268_pinctrl_get_func_count,
599 .gpio_request_enable = bcm63268_gpio_request_enable,
600 .set_mux = bcm63268_pinctrl_set_mux,
601 .strict = true,
602 };
603
604 static const struct bcm63xx_pinctrl_soc bcm63268_soc = {
605 .ngpios = BCM63268_NUM_GPIOS,
606 .npins = ARRAY_SIZE(bcm63268_pins),
607 .pctl_ops = &bcm63268_pctl_ops,
608 .pins = bcm63268_pins,
609 .pmx_ops = &bcm63268_pmx_ops,
610 };
611
bcm63268_pinctrl_probe(struct platform_device * pdev)612 static int bcm63268_pinctrl_probe(struct platform_device *pdev)
613 {
614 return bcm63xx_pinctrl_probe(pdev, &bcm63268_soc, NULL);
615 }
616
617 static const struct of_device_id bcm63268_pinctrl_match[] = {
618 { .compatible = "brcm,bcm63268-pinctrl", },
619 { /* sentinel */ }
620 };
621
622 static struct platform_driver bcm63268_pinctrl_driver = {
623 .probe = bcm63268_pinctrl_probe,
624 .driver = {
625 .name = "bcm63268-pinctrl",
626 .of_match_table = bcm63268_pinctrl_match,
627 },
628 };
629
630 builtin_platform_driver(bcm63268_pinctrl_driver);
631