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Merge branch 'for-3.7' of git://linux-nfs.org/~bfields/linux
[deliverable/linux.git] / drivers / pinctrl / pinctrl-sirf.c
1 /*
2 * pinmux driver for CSR SiRFprimaII
3 *
4 * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
5 *
6 * Licensed under GPLv2 or later.
7 */
8
9 #include <linux/init.h>
10 #include <linux/module.h>
11 #include <linux/irq.h>
12 #include <linux/platform_device.h>
13 #include <linux/io.h>
14 #include <linux/slab.h>
15 #include <linux/err.h>
16 #include <linux/irqdomain.h>
17 #include <linux/pinctrl/pinctrl.h>
18 #include <linux/pinctrl/pinmux.h>
19 #include <linux/pinctrl/consumer.h>
20 #include <linux/pinctrl/machine.h>
21 #include <linux/of.h>
22 #include <linux/of_address.h>
23 #include <linux/of_device.h>
24 #include <linux/of_platform.h>
25 #include <linux/bitops.h>
26 #include <linux/gpio.h>
27 #include <linux/of_gpio.h>
28 #include <asm/mach/irq.h>
29
30 #define DRIVER_NAME "pinmux-sirf"
31
32 #define SIRFSOC_NUM_PADS 622
33 #define SIRFSOC_RSC_PIN_MUX 0x4
34
35 #define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
36 #define SIRFSOC_GPIO_CTRL(g, i) ((g)*0x100 + (i)*4)
37 #define SIRFSOC_GPIO_DSP_EN0 (0x80)
38 #define SIRFSOC_GPIO_PAD_EN(g) ((g)*0x100 + 0x84)
39 #define SIRFSOC_GPIO_INT_STATUS(g) ((g)*0x100 + 0x8C)
40
41 #define SIRFSOC_GPIO_CTL_INTR_LOW_MASK 0x1
42 #define SIRFSOC_GPIO_CTL_INTR_HIGH_MASK 0x2
43 #define SIRFSOC_GPIO_CTL_INTR_TYPE_MASK 0x4
44 #define SIRFSOC_GPIO_CTL_INTR_EN_MASK 0x8
45 #define SIRFSOC_GPIO_CTL_INTR_STS_MASK 0x10
46 #define SIRFSOC_GPIO_CTL_OUT_EN_MASK 0x20
47 #define SIRFSOC_GPIO_CTL_DATAOUT_MASK 0x40
48 #define SIRFSOC_GPIO_CTL_DATAIN_MASK 0x80
49 #define SIRFSOC_GPIO_CTL_PULL_MASK 0x100
50 #define SIRFSOC_GPIO_CTL_PULL_HIGH 0x200
51 #define SIRFSOC_GPIO_CTL_DSP_INT 0x400
52
53 #define SIRFSOC_GPIO_NO_OF_BANKS 5
54 #define SIRFSOC_GPIO_BANK_SIZE 32
55 #define SIRFSOC_GPIO_NUM(bank, index) (((bank)*(32)) + (index))
56
57 struct sirfsoc_gpio_bank {
58 struct of_mm_gpio_chip chip;
59 struct irq_domain *domain;
60 int id;
61 int parent_irq;
62 spinlock_t lock;
63 };
64
65 static struct sirfsoc_gpio_bank sgpio_bank[SIRFSOC_GPIO_NO_OF_BANKS];
66 static DEFINE_SPINLOCK(sgpio_lock);
67
68 /*
69 * pad list for the pinmux subsystem
70 * refer to CS-131858-DC-6A.xls
71 */
72 static const struct pinctrl_pin_desc sirfsoc_pads[] = {
73 PINCTRL_PIN(0, "gpio0-0"),
74 PINCTRL_PIN(1, "gpio0-1"),
75 PINCTRL_PIN(2, "gpio0-2"),
76 PINCTRL_PIN(3, "gpio0-3"),
77 PINCTRL_PIN(4, "pwm0"),
78 PINCTRL_PIN(5, "pwm1"),
79 PINCTRL_PIN(6, "pwm2"),
80 PINCTRL_PIN(7, "pwm3"),
81 PINCTRL_PIN(8, "warm_rst_b"),
82 PINCTRL_PIN(9, "odo_0"),
83 PINCTRL_PIN(10, "odo_1"),
84 PINCTRL_PIN(11, "dr_dir"),
85 PINCTRL_PIN(12, "viprom_fa"),
86 PINCTRL_PIN(13, "scl_1"),
87 PINCTRL_PIN(14, "ntrst"),
88 PINCTRL_PIN(15, "sda_1"),
89 PINCTRL_PIN(16, "x_ldd[16]"),
90 PINCTRL_PIN(17, "x_ldd[17]"),
91 PINCTRL_PIN(18, "x_ldd[18]"),
92 PINCTRL_PIN(19, "x_ldd[19]"),
93 PINCTRL_PIN(20, "x_ldd[20]"),
94 PINCTRL_PIN(21, "x_ldd[21]"),
95 PINCTRL_PIN(22, "x_ldd[22]"),
96 PINCTRL_PIN(23, "x_ldd[23], lcdrom_frdy"),
97 PINCTRL_PIN(24, "gps_sgn"),
98 PINCTRL_PIN(25, "gps_mag"),
99 PINCTRL_PIN(26, "gps_clk"),
100 PINCTRL_PIN(27, "sd_cd_b_1"),
101 PINCTRL_PIN(28, "sd_vcc_on_1"),
102 PINCTRL_PIN(29, "sd_wp_b_1"),
103 PINCTRL_PIN(30, "sd_clk_3"),
104 PINCTRL_PIN(31, "sd_cmd_3"),
105
106 PINCTRL_PIN(32, "x_sd_dat_3[0]"),
107 PINCTRL_PIN(33, "x_sd_dat_3[1]"),
108 PINCTRL_PIN(34, "x_sd_dat_3[2]"),
109 PINCTRL_PIN(35, "x_sd_dat_3[3]"),
110 PINCTRL_PIN(36, "x_sd_clk_4"),
111 PINCTRL_PIN(37, "x_sd_cmd_4"),
112 PINCTRL_PIN(38, "x_sd_dat_4[0]"),
113 PINCTRL_PIN(39, "x_sd_dat_4[1]"),
114 PINCTRL_PIN(40, "x_sd_dat_4[2]"),
115 PINCTRL_PIN(41, "x_sd_dat_4[3]"),
116 PINCTRL_PIN(42, "x_cko_1"),
117 PINCTRL_PIN(43, "x_ac97_bit_clk"),
118 PINCTRL_PIN(44, "x_ac97_dout"),
119 PINCTRL_PIN(45, "x_ac97_din"),
120 PINCTRL_PIN(46, "x_ac97_sync"),
121 PINCTRL_PIN(47, "x_txd_1"),
122 PINCTRL_PIN(48, "x_txd_2"),
123 PINCTRL_PIN(49, "x_rxd_1"),
124 PINCTRL_PIN(50, "x_rxd_2"),
125 PINCTRL_PIN(51, "x_usclk_0"),
126 PINCTRL_PIN(52, "x_utxd_0"),
127 PINCTRL_PIN(53, "x_urxd_0"),
128 PINCTRL_PIN(54, "x_utfs_0"),
129 PINCTRL_PIN(55, "x_urfs_0"),
130 PINCTRL_PIN(56, "x_usclk_1"),
131 PINCTRL_PIN(57, "x_utxd_1"),
132 PINCTRL_PIN(58, "x_urxd_1"),
133 PINCTRL_PIN(59, "x_utfs_1"),
134 PINCTRL_PIN(60, "x_urfs_1"),
135 PINCTRL_PIN(61, "x_usclk_2"),
136 PINCTRL_PIN(62, "x_utxd_2"),
137 PINCTRL_PIN(63, "x_urxd_2"),
138
139 PINCTRL_PIN(64, "x_utfs_2"),
140 PINCTRL_PIN(65, "x_urfs_2"),
141 PINCTRL_PIN(66, "x_df_we_b"),
142 PINCTRL_PIN(67, "x_df_re_b"),
143 PINCTRL_PIN(68, "x_txd_0"),
144 PINCTRL_PIN(69, "x_rxd_0"),
145 PINCTRL_PIN(78, "x_cko_0"),
146 PINCTRL_PIN(79, "x_vip_pxd[7]"),
147 PINCTRL_PIN(80, "x_vip_pxd[6]"),
148 PINCTRL_PIN(81, "x_vip_pxd[5]"),
149 PINCTRL_PIN(82, "x_vip_pxd[4]"),
150 PINCTRL_PIN(83, "x_vip_pxd[3]"),
151 PINCTRL_PIN(84, "x_vip_pxd[2]"),
152 PINCTRL_PIN(85, "x_vip_pxd[1]"),
153 PINCTRL_PIN(86, "x_vip_pxd[0]"),
154 PINCTRL_PIN(87, "x_vip_vsync"),
155 PINCTRL_PIN(88, "x_vip_hsync"),
156 PINCTRL_PIN(89, "x_vip_pxclk"),
157 PINCTRL_PIN(90, "x_sda_0"),
158 PINCTRL_PIN(91, "x_scl_0"),
159 PINCTRL_PIN(92, "x_df_ry_by"),
160 PINCTRL_PIN(93, "x_df_cs_b[1]"),
161 PINCTRL_PIN(94, "x_df_cs_b[0]"),
162 PINCTRL_PIN(95, "x_l_pclk"),
163
164 PINCTRL_PIN(96, "x_l_lck"),
165 PINCTRL_PIN(97, "x_l_fck"),
166 PINCTRL_PIN(98, "x_l_de"),
167 PINCTRL_PIN(99, "x_ldd[0]"),
168 PINCTRL_PIN(100, "x_ldd[1]"),
169 PINCTRL_PIN(101, "x_ldd[2]"),
170 PINCTRL_PIN(102, "x_ldd[3]"),
171 PINCTRL_PIN(103, "x_ldd[4]"),
172 PINCTRL_PIN(104, "x_ldd[5]"),
173 PINCTRL_PIN(105, "x_ldd[6]"),
174 PINCTRL_PIN(106, "x_ldd[7]"),
175 PINCTRL_PIN(107, "x_ldd[8]"),
176 PINCTRL_PIN(108, "x_ldd[9]"),
177 PINCTRL_PIN(109, "x_ldd[10]"),
178 PINCTRL_PIN(110, "x_ldd[11]"),
179 PINCTRL_PIN(111, "x_ldd[12]"),
180 PINCTRL_PIN(112, "x_ldd[13]"),
181 PINCTRL_PIN(113, "x_ldd[14]"),
182 PINCTRL_PIN(114, "x_ldd[15]"),
183 };
184
185 /**
186 * @dev: a pointer back to containing device
187 * @virtbase: the offset to the controller in virtual memory
188 */
189 struct sirfsoc_pmx {
190 struct device *dev;
191 struct pinctrl_dev *pmx;
192 void __iomem *gpio_virtbase;
193 void __iomem *rsc_virtbase;
194 };
195
196 /* SIRFSOC_GPIO_PAD_EN set */
197 struct sirfsoc_muxmask {
198 unsigned long group;
199 unsigned long mask;
200 };
201
202 struct sirfsoc_padmux {
203 unsigned long muxmask_counts;
204 const struct sirfsoc_muxmask *muxmask;
205 /* RSC_PIN_MUX set */
206 unsigned long funcmask;
207 unsigned long funcval;
208 };
209
210 /**
211 * struct sirfsoc_pin_group - describes a SiRFprimaII pin group
212 * @name: the name of this specific pin group
213 * @pins: an array of discrete physical pins used in this group, taken
214 * from the driver-local pin enumeration space
215 * @num_pins: the number of pins in this group array, i.e. the number of
216 * elements in .pins so we can iterate over that array
217 */
218 struct sirfsoc_pin_group {
219 const char *name;
220 const unsigned int *pins;
221 const unsigned num_pins;
222 };
223
224 static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = {
225 {
226 .group = 3,
227 .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
228 BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
229 BIT(17) | BIT(18),
230 }, {
231 .group = 2,
232 .mask = BIT(31),
233 },
234 };
235
236 static const struct sirfsoc_padmux lcd_16bits_padmux = {
237 .muxmask_counts = ARRAY_SIZE(lcd_16bits_sirfsoc_muxmask),
238 .muxmask = lcd_16bits_sirfsoc_muxmask,
239 .funcmask = BIT(4),
240 .funcval = 0,
241 };
242
243 static const unsigned lcd_16bits_pins[] = { 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
244 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 };
245
246 static const struct sirfsoc_muxmask lcd_18bits_muxmask[] = {
247 {
248 .group = 3,
249 .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
250 BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
251 BIT(17) | BIT(18),
252 }, {
253 .group = 2,
254 .mask = BIT(31),
255 }, {
256 .group = 0,
257 .mask = BIT(16) | BIT(17),
258 },
259 };
260
261 static const struct sirfsoc_padmux lcd_18bits_padmux = {
262 .muxmask_counts = ARRAY_SIZE(lcd_18bits_muxmask),
263 .muxmask = lcd_18bits_muxmask,
264 .funcmask = BIT(4),
265 .funcval = 0,
266 };
267
268 static const unsigned lcd_18bits_pins[] = { 16, 17, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
269 105, 106, 107, 108, 109, 110, 111, 112, 113, 114};
270
271 static const struct sirfsoc_muxmask lcd_24bits_muxmask[] = {
272 {
273 .group = 3,
274 .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
275 BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
276 BIT(17) | BIT(18),
277 }, {
278 .group = 2,
279 .mask = BIT(31),
280 }, {
281 .group = 0,
282 .mask = BIT(16) | BIT(17) | BIT(18) | BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23),
283 },
284 };
285
286 static const struct sirfsoc_padmux lcd_24bits_padmux = {
287 .muxmask_counts = ARRAY_SIZE(lcd_24bits_muxmask),
288 .muxmask = lcd_24bits_muxmask,
289 .funcmask = BIT(4),
290 .funcval = 0,
291 };
292
293 static const unsigned lcd_24bits_pins[] = { 16, 17, 18, 19, 20, 21, 22, 23, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
294 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 };
295
296 static const struct sirfsoc_muxmask lcdrom_muxmask[] = {
297 {
298 .group = 3,
299 .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3) | BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) |
300 BIT(9) | BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(15) | BIT(16) |
301 BIT(17) | BIT(18),
302 }, {
303 .group = 2,
304 .mask = BIT(31),
305 }, {
306 .group = 0,
307 .mask = BIT(23),
308 },
309 };
310
311 static const struct sirfsoc_padmux lcdrom_padmux = {
312 .muxmask_counts = ARRAY_SIZE(lcdrom_muxmask),
313 .muxmask = lcdrom_muxmask,
314 .funcmask = BIT(4),
315 .funcval = BIT(4),
316 };
317
318 static const unsigned lcdrom_pins[] = { 23, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104,
319 105, 106, 107, 108, 109, 110, 111, 112, 113, 114 };
320
321 static const struct sirfsoc_muxmask uart0_muxmask[] = {
322 {
323 .group = 2,
324 .mask = BIT(4) | BIT(5),
325 }, {
326 .group = 1,
327 .mask = BIT(23) | BIT(28),
328 },
329 };
330
331 static const struct sirfsoc_padmux uart0_padmux = {
332 .muxmask_counts = ARRAY_SIZE(uart0_muxmask),
333 .muxmask = uart0_muxmask,
334 .funcmask = BIT(9),
335 .funcval = BIT(9),
336 };
337
338 static const unsigned uart0_pins[] = { 55, 60, 68, 69 };
339
340 static const struct sirfsoc_muxmask uart0_nostreamctrl_muxmask[] = {
341 {
342 .group = 2,
343 .mask = BIT(4) | BIT(5),
344 },
345 };
346
347 static const struct sirfsoc_padmux uart0_nostreamctrl_padmux = {
348 .muxmask_counts = ARRAY_SIZE(uart0_nostreamctrl_muxmask),
349 .muxmask = uart0_nostreamctrl_muxmask,
350 };
351
352 static const unsigned uart0_nostreamctrl_pins[] = { 68, 39 };
353
354 static const struct sirfsoc_muxmask uart1_muxmask[] = {
355 {
356 .group = 1,
357 .mask = BIT(15) | BIT(17),
358 },
359 };
360
361 static const struct sirfsoc_padmux uart1_padmux = {
362 .muxmask_counts = ARRAY_SIZE(uart1_muxmask),
363 .muxmask = uart1_muxmask,
364 };
365
366 static const unsigned uart1_pins[] = { 47, 49 };
367
368 static const struct sirfsoc_muxmask uart2_muxmask[] = {
369 {
370 .group = 1,
371 .mask = BIT(16) | BIT(18) | BIT(24) | BIT(27),
372 },
373 };
374
375 static const struct sirfsoc_padmux uart2_padmux = {
376 .muxmask_counts = ARRAY_SIZE(uart2_muxmask),
377 .muxmask = uart2_muxmask,
378 .funcmask = BIT(10),
379 .funcval = BIT(10),
380 };
381
382 static const unsigned uart2_pins[] = { 48, 50, 56, 59 };
383
384 static const struct sirfsoc_muxmask uart2_nostreamctrl_muxmask[] = {
385 {
386 .group = 1,
387 .mask = BIT(16) | BIT(18),
388 },
389 };
390
391 static const struct sirfsoc_padmux uart2_nostreamctrl_padmux = {
392 .muxmask_counts = ARRAY_SIZE(uart2_nostreamctrl_muxmask),
393 .muxmask = uart2_nostreamctrl_muxmask,
394 };
395
396 static const unsigned uart2_nostreamctrl_pins[] = { 48, 50 };
397
398 static const struct sirfsoc_muxmask sdmmc3_muxmask[] = {
399 {
400 .group = 0,
401 .mask = BIT(30) | BIT(31),
402 }, {
403 .group = 1,
404 .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3),
405 },
406 };
407
408 static const struct sirfsoc_padmux sdmmc3_padmux = {
409 .muxmask_counts = ARRAY_SIZE(sdmmc3_muxmask),
410 .muxmask = sdmmc3_muxmask,
411 .funcmask = BIT(7),
412 .funcval = 0,
413 };
414
415 static const unsigned sdmmc3_pins[] = { 30, 31, 32, 33, 34, 35 };
416
417 static const struct sirfsoc_muxmask spi0_muxmask[] = {
418 {
419 .group = 1,
420 .mask = BIT(0) | BIT(1) | BIT(2) | BIT(3),
421 },
422 };
423
424 static const struct sirfsoc_padmux spi0_padmux = {
425 .muxmask_counts = ARRAY_SIZE(spi0_muxmask),
426 .muxmask = spi0_muxmask,
427 .funcmask = BIT(7),
428 .funcval = BIT(7),
429 };
430
431 static const unsigned spi0_pins[] = { 32, 33, 34, 35 };
432
433 static const struct sirfsoc_muxmask sdmmc4_muxmask[] = {
434 {
435 .group = 1,
436 .mask = BIT(4) | BIT(5) | BIT(6) | BIT(7) | BIT(8) | BIT(9),
437 },
438 };
439
440 static const struct sirfsoc_padmux sdmmc4_padmux = {
441 .muxmask_counts = ARRAY_SIZE(sdmmc4_muxmask),
442 .muxmask = sdmmc4_muxmask,
443 };
444
445 static const unsigned sdmmc4_pins[] = { 36, 37, 38, 39, 40, 41 };
446
447 static const struct sirfsoc_muxmask cko1_muxmask[] = {
448 {
449 .group = 1,
450 .mask = BIT(10),
451 },
452 };
453
454 static const struct sirfsoc_padmux cko1_padmux = {
455 .muxmask_counts = ARRAY_SIZE(cko1_muxmask),
456 .muxmask = cko1_muxmask,
457 .funcmask = BIT(3),
458 .funcval = 0,
459 };
460
461 static const unsigned cko1_pins[] = { 42 };
462
463 static const struct sirfsoc_muxmask i2s_muxmask[] = {
464 {
465 .group = 1,
466 .mask =
467 BIT(10) | BIT(11) | BIT(12) | BIT(13) | BIT(14) | BIT(19)
468 | BIT(23) | BIT(28),
469 },
470 };
471
472 static const struct sirfsoc_padmux i2s_padmux = {
473 .muxmask_counts = ARRAY_SIZE(i2s_muxmask),
474 .muxmask = i2s_muxmask,
475 .funcmask = BIT(3) | BIT(9),
476 .funcval = BIT(3),
477 };
478
479 static const unsigned i2s_pins[] = { 42, 43, 44, 45, 46, 51, 55, 60 };
480
481 static const struct sirfsoc_muxmask ac97_muxmask[] = {
482 {
483 .group = 1,
484 .mask = BIT(11) | BIT(12) | BIT(13) | BIT(14),
485 },
486 };
487
488 static const struct sirfsoc_padmux ac97_padmux = {
489 .muxmask_counts = ARRAY_SIZE(ac97_muxmask),
490 .muxmask = ac97_muxmask,
491 .funcmask = BIT(8),
492 .funcval = 0,
493 };
494
495 static const unsigned ac97_pins[] = { 33, 34, 35, 36 };
496
497 static const struct sirfsoc_muxmask spi1_muxmask[] = {
498 {
499 .group = 1,
500 .mask = BIT(11) | BIT(12) | BIT(13) | BIT(14),
501 },
502 };
503
504 static const struct sirfsoc_padmux spi1_padmux = {
505 .muxmask_counts = ARRAY_SIZE(spi1_muxmask),
506 .muxmask = spi1_muxmask,
507 .funcmask = BIT(8),
508 .funcval = BIT(8),
509 };
510
511 static const unsigned spi1_pins[] = { 43, 44, 45, 46 };
512
513 static const struct sirfsoc_muxmask sdmmc1_muxmask[] = {
514 {
515 .group = 0,
516 .mask = BIT(27) | BIT(28) | BIT(29),
517 },
518 };
519
520 static const struct sirfsoc_padmux sdmmc1_padmux = {
521 .muxmask_counts = ARRAY_SIZE(sdmmc1_muxmask),
522 .muxmask = sdmmc1_muxmask,
523 };
524
525 static const unsigned sdmmc1_pins[] = { 27, 28, 29 };
526
527 static const struct sirfsoc_muxmask gps_muxmask[] = {
528 {
529 .group = 0,
530 .mask = BIT(24) | BIT(25) | BIT(26),
531 },
532 };
533
534 static const struct sirfsoc_padmux gps_padmux = {
535 .muxmask_counts = ARRAY_SIZE(gps_muxmask),
536 .muxmask = gps_muxmask,
537 .funcmask = BIT(12) | BIT(13) | BIT(14),
538 .funcval = BIT(12),
539 };
540
541 static const unsigned gps_pins[] = { 24, 25, 26 };
542
543 static const struct sirfsoc_muxmask sdmmc5_muxmask[] = {
544 {
545 .group = 0,
546 .mask = BIT(24) | BIT(25) | BIT(26),
547 }, {
548 .group = 1,
549 .mask = BIT(29),
550 }, {
551 .group = 2,
552 .mask = BIT(0) | BIT(1),
553 },
554 };
555
556 static const struct sirfsoc_padmux sdmmc5_padmux = {
557 .muxmask_counts = ARRAY_SIZE(sdmmc5_muxmask),
558 .muxmask = sdmmc5_muxmask,
559 .funcmask = BIT(13) | BIT(14),
560 .funcval = BIT(13) | BIT(14),
561 };
562
563 static const unsigned sdmmc5_pins[] = { 24, 25, 26, 61, 64, 65 };
564
565 static const struct sirfsoc_muxmask usp0_muxmask[] = {
566 {
567 .group = 1,
568 .mask = BIT(19) | BIT(20) | BIT(21) | BIT(22) | BIT(23),
569 },
570 };
571
572 static const struct sirfsoc_padmux usp0_padmux = {
573 .muxmask_counts = ARRAY_SIZE(usp0_muxmask),
574 .muxmask = usp0_muxmask,
575 .funcmask = BIT(1) | BIT(2) | BIT(6) | BIT(9),
576 .funcval = 0,
577 };
578
579 static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 };
580
581 static const struct sirfsoc_muxmask usp1_muxmask[] = {
582 {
583 .group = 1,
584 .mask = BIT(24) | BIT(25) | BIT(26) | BIT(27) | BIT(28),
585 },
586 };
587
588 static const struct sirfsoc_padmux usp1_padmux = {
589 .muxmask_counts = ARRAY_SIZE(usp1_muxmask),
590 .muxmask = usp1_muxmask,
591 .funcmask = BIT(1) | BIT(9) | BIT(10) | BIT(11),
592 .funcval = 0,
593 };
594
595 static const unsigned usp1_pins[] = { 56, 57, 58, 59, 60 };
596
597 static const struct sirfsoc_muxmask usp2_muxmask[] = {
598 {
599 .group = 1,
600 .mask = BIT(29) | BIT(30) | BIT(31),
601 }, {
602 .group = 2,
603 .mask = BIT(0) | BIT(1),
604 },
605 };
606
607 static const struct sirfsoc_padmux usp2_padmux = {
608 .muxmask_counts = ARRAY_SIZE(usp2_muxmask),
609 .muxmask = usp2_muxmask,
610 .funcmask = BIT(13) | BIT(14),
611 .funcval = 0,
612 };
613
614 static const unsigned usp2_pins[] = { 61, 62, 63, 64, 65 };
615
616 static const struct sirfsoc_muxmask nand_muxmask[] = {
617 {
618 .group = 2,
619 .mask = BIT(2) | BIT(3) | BIT(28) | BIT(29) | BIT(30),
620 },
621 };
622
623 static const struct sirfsoc_padmux nand_padmux = {
624 .muxmask_counts = ARRAY_SIZE(nand_muxmask),
625 .muxmask = nand_muxmask,
626 .funcmask = BIT(5),
627 .funcval = 0,
628 };
629
630 static const unsigned nand_pins[] = { 64, 65, 92, 93, 94 };
631
632 static const struct sirfsoc_padmux sdmmc0_padmux = {
633 .muxmask_counts = 0,
634 .funcmask = BIT(5),
635 .funcval = 0,
636 };
637
638 static const unsigned sdmmc0_pins[] = { };
639
640 static const struct sirfsoc_muxmask sdmmc2_muxmask[] = {
641 {
642 .group = 2,
643 .mask = BIT(2) | BIT(3),
644 },
645 };
646
647 static const struct sirfsoc_padmux sdmmc2_padmux = {
648 .muxmask_counts = ARRAY_SIZE(sdmmc2_muxmask),
649 .muxmask = sdmmc2_muxmask,
650 .funcmask = BIT(5),
651 .funcval = BIT(5),
652 };
653
654 static const unsigned sdmmc2_pins[] = { 66, 67 };
655
656 static const struct sirfsoc_muxmask cko0_muxmask[] = {
657 {
658 .group = 2,
659 .mask = BIT(14),
660 },
661 };
662
663 static const struct sirfsoc_padmux cko0_padmux = {
664 .muxmask_counts = ARRAY_SIZE(cko0_muxmask),
665 .muxmask = cko0_muxmask,
666 };
667
668 static const unsigned cko0_pins[] = { 78 };
669
670 static const struct sirfsoc_muxmask vip_muxmask[] = {
671 {
672 .group = 2,
673 .mask = BIT(15) | BIT(16) | BIT(17) | BIT(18) | BIT(19)
674 | BIT(20) | BIT(21) | BIT(22) | BIT(23) | BIT(24) |
675 BIT(25),
676 },
677 };
678
679 static const struct sirfsoc_padmux vip_padmux = {
680 .muxmask_counts = ARRAY_SIZE(vip_muxmask),
681 .muxmask = vip_muxmask,
682 .funcmask = BIT(0),
683 .funcval = 0,
684 };
685
686 static const unsigned vip_pins[] = { 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 };
687
688 static const struct sirfsoc_muxmask i2c0_muxmask[] = {
689 {
690 .group = 2,
691 .mask = BIT(26) | BIT(27),
692 },
693 };
694
695 static const struct sirfsoc_padmux i2c0_padmux = {
696 .muxmask_counts = ARRAY_SIZE(i2c0_muxmask),
697 .muxmask = i2c0_muxmask,
698 };
699
700 static const unsigned i2c0_pins[] = { 90, 91 };
701
702 static const struct sirfsoc_muxmask i2c1_muxmask[] = {
703 {
704 .group = 0,
705 .mask = BIT(13) | BIT(15),
706 },
707 };
708
709 static const struct sirfsoc_padmux i2c1_padmux = {
710 .muxmask_counts = ARRAY_SIZE(i2c1_muxmask),
711 .muxmask = i2c1_muxmask,
712 };
713
714 static const unsigned i2c1_pins[] = { 13, 15 };
715
716 static const struct sirfsoc_muxmask viprom_muxmask[] = {
717 {
718 .group = 2,
719 .mask = BIT(15) | BIT(16) | BIT(17) | BIT(18) | BIT(19)
720 | BIT(20) | BIT(21) | BIT(22) | BIT(23) | BIT(24) |
721 BIT(25),
722 }, {
723 .group = 0,
724 .mask = BIT(12),
725 },
726 };
727
728 static const struct sirfsoc_padmux viprom_padmux = {
729 .muxmask_counts = ARRAY_SIZE(viprom_muxmask),
730 .muxmask = viprom_muxmask,
731 .funcmask = BIT(0),
732 .funcval = BIT(0),
733 };
734
735 static const unsigned viprom_pins[] = { 12, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89 };
736
737 static const struct sirfsoc_muxmask pwm0_muxmask[] = {
738 {
739 .group = 0,
740 .mask = BIT(4),
741 },
742 };
743
744 static const struct sirfsoc_padmux pwm0_padmux = {
745 .muxmask_counts = ARRAY_SIZE(pwm0_muxmask),
746 .muxmask = pwm0_muxmask,
747 .funcmask = BIT(12),
748 .funcval = 0,
749 };
750
751 static const unsigned pwm0_pins[] = { 4 };
752
753 static const struct sirfsoc_muxmask pwm1_muxmask[] = {
754 {
755 .group = 0,
756 .mask = BIT(5),
757 },
758 };
759
760 static const struct sirfsoc_padmux pwm1_padmux = {
761 .muxmask_counts = ARRAY_SIZE(pwm1_muxmask),
762 .muxmask = pwm1_muxmask,
763 };
764
765 static const unsigned pwm1_pins[] = { 5 };
766
767 static const struct sirfsoc_muxmask pwm2_muxmask[] = {
768 {
769 .group = 0,
770 .mask = BIT(6),
771 },
772 };
773
774 static const struct sirfsoc_padmux pwm2_padmux = {
775 .muxmask_counts = ARRAY_SIZE(pwm2_muxmask),
776 .muxmask = pwm2_muxmask,
777 };
778
779 static const unsigned pwm2_pins[] = { 6 };
780
781 static const struct sirfsoc_muxmask pwm3_muxmask[] = {
782 {
783 .group = 0,
784 .mask = BIT(7),
785 },
786 };
787
788 static const struct sirfsoc_padmux pwm3_padmux = {
789 .muxmask_counts = ARRAY_SIZE(pwm3_muxmask),
790 .muxmask = pwm3_muxmask,
791 };
792
793 static const unsigned pwm3_pins[] = { 7 };
794
795 static const struct sirfsoc_muxmask warm_rst_muxmask[] = {
796 {
797 .group = 0,
798 .mask = BIT(8),
799 },
800 };
801
802 static const struct sirfsoc_padmux warm_rst_padmux = {
803 .muxmask_counts = ARRAY_SIZE(warm_rst_muxmask),
804 .muxmask = warm_rst_muxmask,
805 };
806
807 static const unsigned warm_rst_pins[] = { 8 };
808
809 static const struct sirfsoc_muxmask usb0_utmi_drvbus_muxmask[] = {
810 {
811 .group = 1,
812 .mask = BIT(22),
813 },
814 };
815 static const struct sirfsoc_padmux usb0_utmi_drvbus_padmux = {
816 .muxmask_counts = ARRAY_SIZE(usb0_utmi_drvbus_muxmask),
817 .muxmask = usb0_utmi_drvbus_muxmask,
818 .funcmask = BIT(6),
819 .funcval = BIT(6), /* refer to PAD_UTMI_DRVVBUS0_ENABLE */
820 };
821
822 static const unsigned usb0_utmi_drvbus_pins[] = { 54 };
823
824 static const struct sirfsoc_muxmask usb1_utmi_drvbus_muxmask[] = {
825 {
826 .group = 1,
827 .mask = BIT(27),
828 },
829 };
830
831 static const struct sirfsoc_padmux usb1_utmi_drvbus_padmux = {
832 .muxmask_counts = ARRAY_SIZE(usb1_utmi_drvbus_muxmask),
833 .muxmask = usb1_utmi_drvbus_muxmask,
834 .funcmask = BIT(11),
835 .funcval = BIT(11), /* refer to PAD_UTMI_DRVVBUS1_ENABLE */
836 };
837
838 static const unsigned usb1_utmi_drvbus_pins[] = { 59 };
839
840 static const struct sirfsoc_muxmask pulse_count_muxmask[] = {
841 {
842 .group = 0,
843 .mask = BIT(9) | BIT(10) | BIT(11),
844 },
845 };
846
847 static const struct sirfsoc_padmux pulse_count_padmux = {
848 .muxmask_counts = ARRAY_SIZE(pulse_count_muxmask),
849 .muxmask = pulse_count_muxmask,
850 };
851
852 static const unsigned pulse_count_pins[] = { 9, 10, 11 };
853
854 #define SIRFSOC_PIN_GROUP(n, p) \
855 { \
856 .name = n, \
857 .pins = p, \
858 .num_pins = ARRAY_SIZE(p), \
859 }
860
861 static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
862 SIRFSOC_PIN_GROUP("lcd_16bitsgrp", lcd_16bits_pins),
863 SIRFSOC_PIN_GROUP("lcd_18bitsgrp", lcd_18bits_pins),
864 SIRFSOC_PIN_GROUP("lcd_24bitsgrp", lcd_24bits_pins),
865 SIRFSOC_PIN_GROUP("lcdrom_grp", lcdrom_pins),
866 SIRFSOC_PIN_GROUP("uart0grp", uart0_pins),
867 SIRFSOC_PIN_GROUP("uart1grp", uart1_pins),
868 SIRFSOC_PIN_GROUP("uart2grp", uart2_pins),
869 SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins),
870 SIRFSOC_PIN_GROUP("usp0grp", usp0_pins),
871 SIRFSOC_PIN_GROUP("usp1grp", usp1_pins),
872 SIRFSOC_PIN_GROUP("usp2grp", usp2_pins),
873 SIRFSOC_PIN_GROUP("i2c0grp", i2c0_pins),
874 SIRFSOC_PIN_GROUP("i2c1grp", i2c1_pins),
875 SIRFSOC_PIN_GROUP("pwm0grp", pwm0_pins),
876 SIRFSOC_PIN_GROUP("pwm1grp", pwm1_pins),
877 SIRFSOC_PIN_GROUP("pwm2grp", pwm2_pins),
878 SIRFSOC_PIN_GROUP("pwm3grp", pwm3_pins),
879 SIRFSOC_PIN_GROUP("vipgrp", vip_pins),
880 SIRFSOC_PIN_GROUP("vipromgrp", viprom_pins),
881 SIRFSOC_PIN_GROUP("warm_rstgrp", warm_rst_pins),
882 SIRFSOC_PIN_GROUP("cko0_rstgrp", cko0_pins),
883 SIRFSOC_PIN_GROUP("cko1_rstgrp", cko1_pins),
884 SIRFSOC_PIN_GROUP("sdmmc0grp", sdmmc0_pins),
885 SIRFSOC_PIN_GROUP("sdmmc1grp", sdmmc1_pins),
886 SIRFSOC_PIN_GROUP("sdmmc2grp", sdmmc2_pins),
887 SIRFSOC_PIN_GROUP("sdmmc3grp", sdmmc3_pins),
888 SIRFSOC_PIN_GROUP("sdmmc4grp", sdmmc4_pins),
889 SIRFSOC_PIN_GROUP("sdmmc5grp", sdmmc5_pins),
890 SIRFSOC_PIN_GROUP("usb0_utmi_drvbusgrp", usb0_utmi_drvbus_pins),
891 SIRFSOC_PIN_GROUP("usb1_utmi_drvbusgrp", usb1_utmi_drvbus_pins),
892 SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins),
893 SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins),
894 SIRFSOC_PIN_GROUP("ac97grp", ac97_pins),
895 SIRFSOC_PIN_GROUP("nandgrp", nand_pins),
896 SIRFSOC_PIN_GROUP("spi0grp", spi0_pins),
897 SIRFSOC_PIN_GROUP("spi1grp", spi1_pins),
898 SIRFSOC_PIN_GROUP("gpsgrp", gps_pins),
899 };
900
901 static int sirfsoc_get_groups_count(struct pinctrl_dev *pctldev)
902 {
903 return ARRAY_SIZE(sirfsoc_pin_groups);
904 }
905
906 static const char *sirfsoc_get_group_name(struct pinctrl_dev *pctldev,
907 unsigned selector)
908 {
909 return sirfsoc_pin_groups[selector].name;
910 }
911
912 static int sirfsoc_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
913 const unsigned **pins,
914 unsigned *num_pins)
915 {
916 *pins = sirfsoc_pin_groups[selector].pins;
917 *num_pins = sirfsoc_pin_groups[selector].num_pins;
918 return 0;
919 }
920
921 static void sirfsoc_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
922 unsigned offset)
923 {
924 seq_printf(s, " " DRIVER_NAME);
925 }
926
927 static int sirfsoc_dt_node_to_map(struct pinctrl_dev *pctldev,
928 struct device_node *np_config,
929 struct pinctrl_map **map, unsigned *num_maps)
930 {
931 struct sirfsoc_pmx *spmx = pinctrl_dev_get_drvdata(pctldev);
932 struct device_node *np;
933 struct property *prop;
934 const char *function, *group;
935 int ret, index = 0, count = 0;
936
937 /* calculate number of maps required */
938 for_each_child_of_node(np_config, np) {
939 ret = of_property_read_string(np, "sirf,function", &function);
940 if (ret < 0)
941 return ret;
942
943 ret = of_property_count_strings(np, "sirf,pins");
944 if (ret < 0)
945 return ret;
946
947 count += ret;
948 }
949
950 if (!count) {
951 dev_err(spmx->dev, "No child nodes passed via DT\n");
952 return -ENODEV;
953 }
954
955 *map = kzalloc(sizeof(**map) * count, GFP_KERNEL);
956 if (!*map)
957 return -ENOMEM;
958
959 for_each_child_of_node(np_config, np) {
960 of_property_read_string(np, "sirf,function", &function);
961 of_property_for_each_string(np, "sirf,pins", prop, group) {
962 (*map)[index].type = PIN_MAP_TYPE_MUX_GROUP;
963 (*map)[index].data.mux.group = group;
964 (*map)[index].data.mux.function = function;
965 index++;
966 }
967 }
968
969 *num_maps = count;
970
971 return 0;
972 }
973
974 static void sirfsoc_dt_free_map(struct pinctrl_dev *pctldev,
975 struct pinctrl_map *map, unsigned num_maps)
976 {
977 kfree(map);
978 }
979
980 static struct pinctrl_ops sirfsoc_pctrl_ops = {
981 .get_groups_count = sirfsoc_get_groups_count,
982 .get_group_name = sirfsoc_get_group_name,
983 .get_group_pins = sirfsoc_get_group_pins,
984 .pin_dbg_show = sirfsoc_pin_dbg_show,
985 .dt_node_to_map = sirfsoc_dt_node_to_map,
986 .dt_free_map = sirfsoc_dt_free_map,
987 };
988
989 struct sirfsoc_pmx_func {
990 const char *name;
991 const char * const *groups;
992 const unsigned num_groups;
993 const struct sirfsoc_padmux *padmux;
994 };
995
996 static const char * const lcd_16bitsgrp[] = { "lcd_16bitsgrp" };
997 static const char * const lcd_18bitsgrp[] = { "lcd_18bitsgrp" };
998 static const char * const lcd_24bitsgrp[] = { "lcd_24bitsgrp" };
999 static const char * const lcdromgrp[] = { "lcdromgrp" };
1000 static const char * const uart0grp[] = { "uart0grp" };
1001 static const char * const uart1grp[] = { "uart1grp" };
1002 static const char * const uart2grp[] = { "uart2grp" };
1003 static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" };
1004 static const char * const usp0grp[] = { "usp0grp" };
1005 static const char * const usp1grp[] = { "usp1grp" };
1006 static const char * const usp2grp[] = { "usp2grp" };
1007 static const char * const i2c0grp[] = { "i2c0grp" };
1008 static const char * const i2c1grp[] = { "i2c1grp" };
1009 static const char * const pwm0grp[] = { "pwm0grp" };
1010 static const char * const pwm1grp[] = { "pwm1grp" };
1011 static const char * const pwm2grp[] = { "pwm2grp" };
1012 static const char * const pwm3grp[] = { "pwm3grp" };
1013 static const char * const vipgrp[] = { "vipgrp" };
1014 static const char * const vipromgrp[] = { "vipromgrp" };
1015 static const char * const warm_rstgrp[] = { "warm_rstgrp" };
1016 static const char * const cko0grp[] = { "cko0grp" };
1017 static const char * const cko1grp[] = { "cko1grp" };
1018 static const char * const sdmmc0grp[] = { "sdmmc0grp" };
1019 static const char * const sdmmc1grp[] = { "sdmmc1grp" };
1020 static const char * const sdmmc2grp[] = { "sdmmc2grp" };
1021 static const char * const sdmmc3grp[] = { "sdmmc3grp" };
1022 static const char * const sdmmc4grp[] = { "sdmmc4grp" };
1023 static const char * const sdmmc5grp[] = { "sdmmc5grp" };
1024 static const char * const usb0_utmi_drvbusgrp[] = { "usb0_utmi_drvbusgrp" };
1025 static const char * const usb1_utmi_drvbusgrp[] = { "usb1_utmi_drvbusgrp" };
1026 static const char * const pulse_countgrp[] = { "pulse_countgrp" };
1027 static const char * const i2sgrp[] = { "i2sgrp" };
1028 static const char * const ac97grp[] = { "ac97grp" };
1029 static const char * const nandgrp[] = { "nandgrp" };
1030 static const char * const spi0grp[] = { "spi0grp" };
1031 static const char * const spi1grp[] = { "spi1grp" };
1032 static const char * const gpsgrp[] = { "gpsgrp" };
1033
1034 #define SIRFSOC_PMX_FUNCTION(n, g, m) \
1035 { \
1036 .name = n, \
1037 .groups = g, \
1038 .num_groups = ARRAY_SIZE(g), \
1039 .padmux = &m, \
1040 }
1041
1042 static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
1043 SIRFSOC_PMX_FUNCTION("lcd_16bits", lcd_16bitsgrp, lcd_16bits_padmux),
1044 SIRFSOC_PMX_FUNCTION("lcd_18bits", lcd_18bitsgrp, lcd_18bits_padmux),
1045 SIRFSOC_PMX_FUNCTION("lcd_24bits", lcd_24bitsgrp, lcd_24bits_padmux),
1046 SIRFSOC_PMX_FUNCTION("lcdrom", lcdromgrp, lcdrom_padmux),
1047 SIRFSOC_PMX_FUNCTION("uart0", uart0grp, uart0_padmux),
1048 SIRFSOC_PMX_FUNCTION("uart1", uart1grp, uart1_padmux),
1049 SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux),
1050 SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux),
1051 SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux),
1052 SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux),
1053 SIRFSOC_PMX_FUNCTION("usp2", usp2grp, usp2_padmux),
1054 SIRFSOC_PMX_FUNCTION("i2c0", i2c0grp, i2c0_padmux),
1055 SIRFSOC_PMX_FUNCTION("i2c1", i2c1grp, i2c1_padmux),
1056 SIRFSOC_PMX_FUNCTION("pwm0", pwm0grp, pwm0_padmux),
1057 SIRFSOC_PMX_FUNCTION("pwm1", pwm1grp, pwm1_padmux),
1058 SIRFSOC_PMX_FUNCTION("pwm2", pwm2grp, pwm2_padmux),
1059 SIRFSOC_PMX_FUNCTION("pwm3", pwm3grp, pwm3_padmux),
1060 SIRFSOC_PMX_FUNCTION("vip", vipgrp, vip_padmux),
1061 SIRFSOC_PMX_FUNCTION("viprom", vipromgrp, viprom_padmux),
1062 SIRFSOC_PMX_FUNCTION("warm_rst", warm_rstgrp, warm_rst_padmux),
1063 SIRFSOC_PMX_FUNCTION("cko0", cko0grp, cko0_padmux),
1064 SIRFSOC_PMX_FUNCTION("cko1", cko1grp, cko1_padmux),
1065 SIRFSOC_PMX_FUNCTION("sdmmc0", sdmmc0grp, sdmmc0_padmux),
1066 SIRFSOC_PMX_FUNCTION("sdmmc1", sdmmc1grp, sdmmc1_padmux),
1067 SIRFSOC_PMX_FUNCTION("sdmmc2", sdmmc2grp, sdmmc2_padmux),
1068 SIRFSOC_PMX_FUNCTION("sdmmc3", sdmmc3grp, sdmmc3_padmux),
1069 SIRFSOC_PMX_FUNCTION("sdmmc4", sdmmc4grp, sdmmc4_padmux),
1070 SIRFSOC_PMX_FUNCTION("sdmmc5", sdmmc5grp, sdmmc5_padmux),
1071 SIRFSOC_PMX_FUNCTION("usb0_utmi_drvbus", usb0_utmi_drvbusgrp, usb0_utmi_drvbus_padmux),
1072 SIRFSOC_PMX_FUNCTION("usb1_utmi_drvbus", usb1_utmi_drvbusgrp, usb1_utmi_drvbus_padmux),
1073 SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux),
1074 SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux),
1075 SIRFSOC_PMX_FUNCTION("ac97", ac97grp, ac97_padmux),
1076 SIRFSOC_PMX_FUNCTION("nand", nandgrp, nand_padmux),
1077 SIRFSOC_PMX_FUNCTION("spi0", spi0grp, spi0_padmux),
1078 SIRFSOC_PMX_FUNCTION("spi1", spi1grp, spi1_padmux),
1079 SIRFSOC_PMX_FUNCTION("gps", gpsgrp, gps_padmux),
1080 };
1081
1082 static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx, unsigned selector,
1083 bool enable)
1084 {
1085 int i;
1086 const struct sirfsoc_padmux *mux = sirfsoc_pmx_functions[selector].padmux;
1087 const struct sirfsoc_muxmask *mask = mux->muxmask;
1088
1089 for (i = 0; i < mux->muxmask_counts; i++) {
1090 u32 muxval;
1091 muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
1092 if (enable)
1093 muxval = muxval & ~mask[i].mask;
1094 else
1095 muxval = muxval | mask[i].mask;
1096 writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(mask[i].group));
1097 }
1098
1099 if (mux->funcmask && enable) {
1100 u32 func_en_val;
1101 func_en_val =
1102 readl(spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX);
1103 func_en_val =
1104 (func_en_val & ~mux->funcmask) | (mux->
1105 funcval);
1106 writel(func_en_val, spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX);
1107 }
1108 }
1109
1110 static int sirfsoc_pinmux_enable(struct pinctrl_dev *pmxdev, unsigned selector,
1111 unsigned group)
1112 {
1113 struct sirfsoc_pmx *spmx;
1114
1115 spmx = pinctrl_dev_get_drvdata(pmxdev);
1116 sirfsoc_pinmux_endisable(spmx, selector, true);
1117
1118 return 0;
1119 }
1120
1121 static void sirfsoc_pinmux_disable(struct pinctrl_dev *pmxdev, unsigned selector,
1122 unsigned group)
1123 {
1124 struct sirfsoc_pmx *spmx;
1125
1126 spmx = pinctrl_dev_get_drvdata(pmxdev);
1127 sirfsoc_pinmux_endisable(spmx, selector, false);
1128 }
1129
1130 static int sirfsoc_pinmux_get_funcs_count(struct pinctrl_dev *pmxdev)
1131 {
1132 return ARRAY_SIZE(sirfsoc_pmx_functions);
1133 }
1134
1135 static const char *sirfsoc_pinmux_get_func_name(struct pinctrl_dev *pctldev,
1136 unsigned selector)
1137 {
1138 return sirfsoc_pmx_functions[selector].name;
1139 }
1140
1141 static int sirfsoc_pinmux_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
1142 const char * const **groups,
1143 unsigned * const num_groups)
1144 {
1145 *groups = sirfsoc_pmx_functions[selector].groups;
1146 *num_groups = sirfsoc_pmx_functions[selector].num_groups;
1147 return 0;
1148 }
1149
1150 static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
1151 struct pinctrl_gpio_range *range, unsigned offset)
1152 {
1153 struct sirfsoc_pmx *spmx;
1154
1155 int group = range->id;
1156
1157 u32 muxval;
1158
1159 spmx = pinctrl_dev_get_drvdata(pmxdev);
1160
1161 muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
1162 muxval = muxval | (1 << (offset - range->pin_base));
1163 writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
1164
1165 return 0;
1166 }
1167
1168 static struct pinmux_ops sirfsoc_pinmux_ops = {
1169 .enable = sirfsoc_pinmux_enable,
1170 .disable = sirfsoc_pinmux_disable,
1171 .get_functions_count = sirfsoc_pinmux_get_funcs_count,
1172 .get_function_name = sirfsoc_pinmux_get_func_name,
1173 .get_function_groups = sirfsoc_pinmux_get_groups,
1174 .gpio_request_enable = sirfsoc_pinmux_request_gpio,
1175 };
1176
1177 static struct pinctrl_desc sirfsoc_pinmux_desc = {
1178 .name = DRIVER_NAME,
1179 .pins = sirfsoc_pads,
1180 .npins = ARRAY_SIZE(sirfsoc_pads),
1181 .pctlops = &sirfsoc_pctrl_ops,
1182 .pmxops = &sirfsoc_pinmux_ops,
1183 .owner = THIS_MODULE,
1184 };
1185
1186 /*
1187 * Todo: bind irq_chip to every pinctrl_gpio_range
1188 */
1189 static struct pinctrl_gpio_range sirfsoc_gpio_ranges[] = {
1190 {
1191 .name = "sirfsoc-gpio*",
1192 .id = 0,
1193 .base = 0,
1194 .pin_base = 0,
1195 .npins = 32,
1196 }, {
1197 .name = "sirfsoc-gpio*",
1198 .id = 1,
1199 .base = 32,
1200 .pin_base = 32,
1201 .npins = 32,
1202 }, {
1203 .name = "sirfsoc-gpio*",
1204 .id = 2,
1205 .base = 64,
1206 .pin_base = 64,
1207 .npins = 32,
1208 }, {
1209 .name = "sirfsoc-gpio*",
1210 .id = 3,
1211 .base = 96,
1212 .pin_base = 96,
1213 .npins = 19,
1214 },
1215 };
1216
1217 static void __iomem *sirfsoc_rsc_of_iomap(void)
1218 {
1219 const struct of_device_id rsc_ids[] = {
1220 { .compatible = "sirf,prima2-rsc" },
1221 {}
1222 };
1223 struct device_node *np;
1224
1225 np = of_find_matching_node(NULL, rsc_ids);
1226 if (!np)
1227 panic("unable to find compatible rsc node in dtb\n");
1228
1229 return of_iomap(np, 0);
1230 }
1231
1232 static int __devinit sirfsoc_pinmux_probe(struct platform_device *pdev)
1233 {
1234 int ret;
1235 struct sirfsoc_pmx *spmx;
1236 struct device_node *np = pdev->dev.of_node;
1237 int i;
1238
1239 /* Create state holders etc for this driver */
1240 spmx = devm_kzalloc(&pdev->dev, sizeof(*spmx), GFP_KERNEL);
1241 if (!spmx)
1242 return -ENOMEM;
1243
1244 spmx->dev = &pdev->dev;
1245
1246 platform_set_drvdata(pdev, spmx);
1247
1248 spmx->gpio_virtbase = of_iomap(np, 0);
1249 if (!spmx->gpio_virtbase) {
1250 ret = -ENOMEM;
1251 dev_err(&pdev->dev, "can't map gpio registers\n");
1252 goto out_no_gpio_remap;
1253 }
1254
1255 spmx->rsc_virtbase = sirfsoc_rsc_of_iomap();
1256 if (!spmx->rsc_virtbase) {
1257 ret = -ENOMEM;
1258 dev_err(&pdev->dev, "can't map rsc registers\n");
1259 goto out_no_rsc_remap;
1260 }
1261
1262 /* Now register the pin controller and all pins it handles */
1263 spmx->pmx = pinctrl_register(&sirfsoc_pinmux_desc, &pdev->dev, spmx);
1264 if (!spmx->pmx) {
1265 dev_err(&pdev->dev, "could not register SIRFSOC pinmux driver\n");
1266 ret = -EINVAL;
1267 goto out_no_pmx;
1268 }
1269
1270 for (i = 0; i < ARRAY_SIZE(sirfsoc_gpio_ranges); i++) {
1271 sirfsoc_gpio_ranges[i].gc = &sgpio_bank[i].chip.gc;
1272 pinctrl_add_gpio_range(spmx->pmx, &sirfsoc_gpio_ranges[i]);
1273 }
1274
1275 dev_info(&pdev->dev, "initialized SIRFSOC pinmux driver\n");
1276
1277 return 0;
1278
1279 out_no_pmx:
1280 iounmap(spmx->rsc_virtbase);
1281 out_no_rsc_remap:
1282 iounmap(spmx->gpio_virtbase);
1283 out_no_gpio_remap:
1284 platform_set_drvdata(pdev, NULL);
1285 return ret;
1286 }
1287
1288 static const struct of_device_id pinmux_ids[] __devinitconst = {
1289 { .compatible = "sirf,prima2-pinctrl" },
1290 {}
1291 };
1292
1293 static struct platform_driver sirfsoc_pinmux_driver = {
1294 .driver = {
1295 .name = DRIVER_NAME,
1296 .owner = THIS_MODULE,
1297 .of_match_table = pinmux_ids,
1298 },
1299 .probe = sirfsoc_pinmux_probe,
1300 };
1301
1302 static int __init sirfsoc_pinmux_init(void)
1303 {
1304 return platform_driver_register(&sirfsoc_pinmux_driver);
1305 }
1306 arch_initcall(sirfsoc_pinmux_init);
1307
1308 static inline int sirfsoc_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
1309 {
1310 struct sirfsoc_gpio_bank *bank = container_of(to_of_mm_gpio_chip(chip),
1311 struct sirfsoc_gpio_bank, chip);
1312
1313 return irq_find_mapping(bank->domain, offset);
1314 }
1315
1316 static inline int sirfsoc_gpio_to_offset(unsigned int gpio)
1317 {
1318 return gpio % SIRFSOC_GPIO_BANK_SIZE;
1319 }
1320
1321 static inline struct sirfsoc_gpio_bank *sirfsoc_gpio_to_bank(unsigned int gpio)
1322 {
1323 return &sgpio_bank[gpio / SIRFSOC_GPIO_BANK_SIZE];
1324 }
1325
1326 static inline struct sirfsoc_gpio_bank *sirfsoc_irqchip_to_bank(struct gpio_chip *chip)
1327 {
1328 return container_of(to_of_mm_gpio_chip(chip), struct sirfsoc_gpio_bank, chip);
1329 }
1330
1331 static void sirfsoc_gpio_irq_ack(struct irq_data *d)
1332 {
1333 struct sirfsoc_gpio_bank *bank = irq_data_get_irq_chip_data(d);
1334 int idx = d->hwirq % SIRFSOC_GPIO_BANK_SIZE;
1335 u32 val, offset;
1336 unsigned long flags;
1337
1338 offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
1339
1340 spin_lock_irqsave(&sgpio_lock, flags);
1341
1342 val = readl(bank->chip.regs + offset);
1343
1344 writel(val, bank->chip.regs + offset);
1345
1346 spin_unlock_irqrestore(&sgpio_lock, flags);
1347 }
1348
1349 static void __sirfsoc_gpio_irq_mask(struct sirfsoc_gpio_bank *bank, int idx)
1350 {
1351 u32 val, offset;
1352 unsigned long flags;
1353
1354 offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
1355
1356 spin_lock_irqsave(&sgpio_lock, flags);
1357
1358 val = readl(bank->chip.regs + offset);
1359 val &= ~SIRFSOC_GPIO_CTL_INTR_EN_MASK;
1360 val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
1361 writel(val, bank->chip.regs + offset);
1362
1363 spin_unlock_irqrestore(&sgpio_lock, flags);
1364 }
1365
1366 static void sirfsoc_gpio_irq_mask(struct irq_data *d)
1367 {
1368 struct sirfsoc_gpio_bank *bank = irq_data_get_irq_chip_data(d);
1369
1370 __sirfsoc_gpio_irq_mask(bank, d->hwirq % SIRFSOC_GPIO_BANK_SIZE);
1371 }
1372
1373 static void sirfsoc_gpio_irq_unmask(struct irq_data *d)
1374 {
1375 struct sirfsoc_gpio_bank *bank = irq_data_get_irq_chip_data(d);
1376 int idx = d->hwirq % SIRFSOC_GPIO_BANK_SIZE;
1377 u32 val, offset;
1378 unsigned long flags;
1379
1380 offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
1381
1382 spin_lock_irqsave(&sgpio_lock, flags);
1383
1384 val = readl(bank->chip.regs + offset);
1385 val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
1386 val |= SIRFSOC_GPIO_CTL_INTR_EN_MASK;
1387 writel(val, bank->chip.regs + offset);
1388
1389 spin_unlock_irqrestore(&sgpio_lock, flags);
1390 }
1391
1392 static int sirfsoc_gpio_irq_type(struct irq_data *d, unsigned type)
1393 {
1394 struct sirfsoc_gpio_bank *bank = irq_data_get_irq_chip_data(d);
1395 int idx = d->hwirq % SIRFSOC_GPIO_BANK_SIZE;
1396 u32 val, offset;
1397 unsigned long flags;
1398
1399 offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
1400
1401 spin_lock_irqsave(&sgpio_lock, flags);
1402
1403 val = readl(bank->chip.regs + offset);
1404 val &= ~SIRFSOC_GPIO_CTL_INTR_STS_MASK;
1405
1406 switch (type) {
1407 case IRQ_TYPE_NONE:
1408 break;
1409 case IRQ_TYPE_EDGE_RISING:
1410 val |= SIRFSOC_GPIO_CTL_INTR_HIGH_MASK | SIRFSOC_GPIO_CTL_INTR_TYPE_MASK;
1411 val &= ~SIRFSOC_GPIO_CTL_INTR_LOW_MASK;
1412 break;
1413 case IRQ_TYPE_EDGE_FALLING:
1414 val &= ~SIRFSOC_GPIO_CTL_INTR_HIGH_MASK;
1415 val |= SIRFSOC_GPIO_CTL_INTR_LOW_MASK | SIRFSOC_GPIO_CTL_INTR_TYPE_MASK;
1416 break;
1417 case IRQ_TYPE_EDGE_BOTH:
1418 val |= SIRFSOC_GPIO_CTL_INTR_HIGH_MASK | SIRFSOC_GPIO_CTL_INTR_LOW_MASK |
1419 SIRFSOC_GPIO_CTL_INTR_TYPE_MASK;
1420 break;
1421 case IRQ_TYPE_LEVEL_LOW:
1422 val &= ~(SIRFSOC_GPIO_CTL_INTR_HIGH_MASK | SIRFSOC_GPIO_CTL_INTR_TYPE_MASK);
1423 val |= SIRFSOC_GPIO_CTL_INTR_LOW_MASK;
1424 break;
1425 case IRQ_TYPE_LEVEL_HIGH:
1426 val |= SIRFSOC_GPIO_CTL_INTR_HIGH_MASK;
1427 val &= ~(SIRFSOC_GPIO_CTL_INTR_LOW_MASK | SIRFSOC_GPIO_CTL_INTR_TYPE_MASK);
1428 break;
1429 }
1430
1431 writel(val, bank->chip.regs + offset);
1432
1433 spin_unlock_irqrestore(&sgpio_lock, flags);
1434
1435 return 0;
1436 }
1437
1438 static struct irq_chip sirfsoc_irq_chip = {
1439 .name = "sirf-gpio-irq",
1440 .irq_ack = sirfsoc_gpio_irq_ack,
1441 .irq_mask = sirfsoc_gpio_irq_mask,
1442 .irq_unmask = sirfsoc_gpio_irq_unmask,
1443 .irq_set_type = sirfsoc_gpio_irq_type,
1444 };
1445
1446 static void sirfsoc_gpio_handle_irq(unsigned int irq, struct irq_desc *desc)
1447 {
1448 struct sirfsoc_gpio_bank *bank = irq_get_handler_data(irq);
1449 u32 status, ctrl;
1450 int idx = 0;
1451 unsigned int first_irq;
1452 struct irq_chip *chip = irq_get_chip(irq);
1453
1454 chained_irq_enter(chip, desc);
1455
1456 status = readl(bank->chip.regs + SIRFSOC_GPIO_INT_STATUS(bank->id));
1457 if (!status) {
1458 printk(KERN_WARNING
1459 "%s: gpio id %d status %#x no interrupt is flaged\n",
1460 __func__, bank->id, status);
1461 handle_bad_irq(irq, desc);
1462 return;
1463 }
1464
1465 first_irq = bank->domain->revmap_data.legacy.first_irq;
1466
1467 while (status) {
1468 ctrl = readl(bank->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, idx));
1469
1470 /*
1471 * Here we must check whether the corresponding GPIO's interrupt
1472 * has been enabled, otherwise just skip it
1473 */
1474 if ((status & 0x1) && (ctrl & SIRFSOC_GPIO_CTL_INTR_EN_MASK)) {
1475 pr_debug("%s: gpio id %d idx %d happens\n",
1476 __func__, bank->id, idx);
1477 generic_handle_irq(first_irq + idx);
1478 }
1479
1480 idx++;
1481 status = status >> 1;
1482 }
1483
1484 chained_irq_exit(chip, desc);
1485 }
1486
1487 static inline void sirfsoc_gpio_set_input(struct sirfsoc_gpio_bank *bank, unsigned ctrl_offset)
1488 {
1489 u32 val;
1490
1491 val = readl(bank->chip.regs + ctrl_offset);
1492 val &= ~SIRFSOC_GPIO_CTL_OUT_EN_MASK;
1493 writel(val, bank->chip.regs + ctrl_offset);
1494 }
1495
1496 static int sirfsoc_gpio_request(struct gpio_chip *chip, unsigned offset)
1497 {
1498 struct sirfsoc_gpio_bank *bank = sirfsoc_irqchip_to_bank(chip);
1499 unsigned long flags;
1500
1501 if (pinctrl_request_gpio(chip->base + offset))
1502 return -ENODEV;
1503
1504 spin_lock_irqsave(&bank->lock, flags);
1505
1506 /*
1507 * default status:
1508 * set direction as input and mask irq
1509 */
1510 sirfsoc_gpio_set_input(bank, SIRFSOC_GPIO_CTRL(bank->id, offset));
1511 __sirfsoc_gpio_irq_mask(bank, offset);
1512
1513 spin_unlock_irqrestore(&bank->lock, flags);
1514
1515 return 0;
1516 }
1517
1518 static void sirfsoc_gpio_free(struct gpio_chip *chip, unsigned offset)
1519 {
1520 struct sirfsoc_gpio_bank *bank = sirfsoc_irqchip_to_bank(chip);
1521 unsigned long flags;
1522
1523 spin_lock_irqsave(&bank->lock, flags);
1524
1525 __sirfsoc_gpio_irq_mask(bank, offset);
1526 sirfsoc_gpio_set_input(bank, SIRFSOC_GPIO_CTRL(bank->id, offset));
1527
1528 spin_unlock_irqrestore(&bank->lock, flags);
1529
1530 pinctrl_free_gpio(chip->base + offset);
1531 }
1532
1533 static int sirfsoc_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
1534 {
1535 struct sirfsoc_gpio_bank *bank = sirfsoc_irqchip_to_bank(chip);
1536 int idx = sirfsoc_gpio_to_offset(gpio);
1537 unsigned long flags;
1538 unsigned offset;
1539
1540 offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
1541
1542 spin_lock_irqsave(&bank->lock, flags);
1543
1544 sirfsoc_gpio_set_input(bank, offset);
1545
1546 spin_unlock_irqrestore(&bank->lock, flags);
1547
1548 return 0;
1549 }
1550
1551 static inline void sirfsoc_gpio_set_output(struct sirfsoc_gpio_bank *bank, unsigned offset,
1552 int value)
1553 {
1554 u32 out_ctrl;
1555 unsigned long flags;
1556
1557 spin_lock_irqsave(&bank->lock, flags);
1558
1559 out_ctrl = readl(bank->chip.regs + offset);
1560 if (value)
1561 out_ctrl |= SIRFSOC_GPIO_CTL_DATAOUT_MASK;
1562 else
1563 out_ctrl &= ~SIRFSOC_GPIO_CTL_DATAOUT_MASK;
1564
1565 out_ctrl &= ~SIRFSOC_GPIO_CTL_INTR_EN_MASK;
1566 out_ctrl |= SIRFSOC_GPIO_CTL_OUT_EN_MASK;
1567 writel(out_ctrl, bank->chip.regs + offset);
1568
1569 spin_unlock_irqrestore(&bank->lock, flags);
1570 }
1571
1572 static int sirfsoc_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int value)
1573 {
1574 struct sirfsoc_gpio_bank *bank = sirfsoc_irqchip_to_bank(chip);
1575 int idx = sirfsoc_gpio_to_offset(gpio);
1576 u32 offset;
1577 unsigned long flags;
1578
1579 offset = SIRFSOC_GPIO_CTRL(bank->id, idx);
1580
1581 spin_lock_irqsave(&sgpio_lock, flags);
1582
1583 sirfsoc_gpio_set_output(bank, offset, value);
1584
1585 spin_unlock_irqrestore(&sgpio_lock, flags);
1586
1587 return 0;
1588 }
1589
1590 static int sirfsoc_gpio_get_value(struct gpio_chip *chip, unsigned offset)
1591 {
1592 struct sirfsoc_gpio_bank *bank = sirfsoc_irqchip_to_bank(chip);
1593 u32 val;
1594 unsigned long flags;
1595
1596 spin_lock_irqsave(&bank->lock, flags);
1597
1598 val = readl(bank->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, offset));
1599
1600 spin_unlock_irqrestore(&bank->lock, flags);
1601
1602 return !!(val & SIRFSOC_GPIO_CTL_DATAIN_MASK);
1603 }
1604
1605 static void sirfsoc_gpio_set_value(struct gpio_chip *chip, unsigned offset,
1606 int value)
1607 {
1608 struct sirfsoc_gpio_bank *bank = sirfsoc_irqchip_to_bank(chip);
1609 u32 ctrl;
1610 unsigned long flags;
1611
1612 spin_lock_irqsave(&bank->lock, flags);
1613
1614 ctrl = readl(bank->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, offset));
1615 if (value)
1616 ctrl |= SIRFSOC_GPIO_CTL_DATAOUT_MASK;
1617 else
1618 ctrl &= ~SIRFSOC_GPIO_CTL_DATAOUT_MASK;
1619 writel(ctrl, bank->chip.regs + SIRFSOC_GPIO_CTRL(bank->id, offset));
1620
1621 spin_unlock_irqrestore(&bank->lock, flags);
1622 }
1623
1624 int sirfsoc_gpio_irq_map(struct irq_domain *d, unsigned int irq,
1625 irq_hw_number_t hwirq)
1626 {
1627 struct sirfsoc_gpio_bank *bank = d->host_data;
1628
1629 if (!bank)
1630 return -EINVAL;
1631
1632 irq_set_chip(irq, &sirfsoc_irq_chip);
1633 irq_set_handler(irq, handle_level_irq);
1634 irq_set_chip_data(irq, bank);
1635 set_irq_flags(irq, IRQF_VALID);
1636
1637 return 0;
1638 }
1639
1640 const struct irq_domain_ops sirfsoc_gpio_irq_simple_ops = {
1641 .map = sirfsoc_gpio_irq_map,
1642 .xlate = irq_domain_xlate_twocell,
1643 };
1644
1645 static int __devinit sirfsoc_gpio_probe(struct device_node *np)
1646 {
1647 int i, err = 0;
1648 struct sirfsoc_gpio_bank *bank;
1649 void *regs;
1650 struct platform_device *pdev;
1651
1652 pdev = of_find_device_by_node(np);
1653 if (!pdev)
1654 return -ENODEV;
1655
1656 regs = of_iomap(np, 0);
1657 if (!regs)
1658 return -ENOMEM;
1659
1660 for (i = 0; i < SIRFSOC_GPIO_NO_OF_BANKS; i++) {
1661 bank = &sgpio_bank[i];
1662 spin_lock_init(&bank->lock);
1663 bank->chip.gc.request = sirfsoc_gpio_request;
1664 bank->chip.gc.free = sirfsoc_gpio_free;
1665 bank->chip.gc.direction_input = sirfsoc_gpio_direction_input;
1666 bank->chip.gc.get = sirfsoc_gpio_get_value;
1667 bank->chip.gc.direction_output = sirfsoc_gpio_direction_output;
1668 bank->chip.gc.set = sirfsoc_gpio_set_value;
1669 bank->chip.gc.to_irq = sirfsoc_gpio_to_irq;
1670 bank->chip.gc.base = i * SIRFSOC_GPIO_BANK_SIZE;
1671 bank->chip.gc.ngpio = SIRFSOC_GPIO_BANK_SIZE;
1672 bank->chip.gc.label = kstrdup(np->full_name, GFP_KERNEL);
1673 bank->chip.gc.of_node = np;
1674 bank->chip.regs = regs;
1675 bank->id = i;
1676 bank->parent_irq = platform_get_irq(pdev, i);
1677 if (bank->parent_irq < 0) {
1678 err = bank->parent_irq;
1679 goto out;
1680 }
1681
1682 err = gpiochip_add(&bank->chip.gc);
1683 if (err) {
1684 pr_err("%s: error in probe function with status %d\n",
1685 np->full_name, err);
1686 goto out;
1687 }
1688
1689 bank->domain = irq_domain_add_legacy(np, SIRFSOC_GPIO_BANK_SIZE,
1690 SIRFSOC_GPIO_IRQ_START + i * SIRFSOC_GPIO_BANK_SIZE, 0,
1691 &sirfsoc_gpio_irq_simple_ops, bank);
1692
1693 if (!bank->domain) {
1694 pr_err("%s: Failed to create irqdomain\n", np->full_name);
1695 err = -ENOSYS;
1696 goto out;
1697 }
1698
1699 irq_set_chained_handler(bank->parent_irq, sirfsoc_gpio_handle_irq);
1700 irq_set_handler_data(bank->parent_irq, bank);
1701 }
1702
1703 return 0;
1704
1705 out:
1706 iounmap(regs);
1707 return err;
1708 }
1709
1710 static int __init sirfsoc_gpio_init(void)
1711 {
1712
1713 struct device_node *np;
1714
1715 np = of_find_matching_node(NULL, pinmux_ids);
1716
1717 if (!np)
1718 return -ENODEV;
1719
1720 return sirfsoc_gpio_probe(np);
1721 }
1722 subsys_initcall(sirfsoc_gpio_init);
1723
1724 MODULE_AUTHOR("Rongjun Ying <rongjun.ying@csr.com>, "
1725 "Yuping Luo <yuping.luo@csr.com>, "
1726 "Barry Song <baohua.song@csr.com>");
1727 MODULE_DESCRIPTION("SIRFSOC pin control driver");
1728 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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