1/*
2 * Driver for the ST Microelectronics SPEAr300 pinmux
3 *
4 * Copyright (C) 2012 ST Microelectronics
5 * Viresh Kumar <vireshk@kernel.org>
6 *
7 * This file is licensed under the terms of the GNU General Public
8 * License version 2. This program is licensed "as is" without any
9 * warranty of any kind, whether express or implied.
10 */
11
12#include <linux/err.h>
13#include <linux/init.h>
14#include <linux/mod_devicetable.h>
15#include <linux/platform_device.h>
16#include "pinctrl-spear3xx.h"
17
18#define DRIVER_NAME "spear300-pinmux"
19
20/* addresses */
21#define PMX_CONFIG_REG 0x00
22#define MODE_CONFIG_REG 0x04
23
24/* modes */
25#define NAND_MODE (1 << 0)
26#define NOR_MODE (1 << 1)
27#define PHOTO_FRAME_MODE (1 << 2)
28#define LEND_IP_PHONE_MODE (1 << 3)
29#define HEND_IP_PHONE_MODE (1 << 4)
30#define LEND_WIFI_PHONE_MODE (1 << 5)
31#define HEND_WIFI_PHONE_MODE (1 << 6)
32#define ATA_PABX_WI2S_MODE (1 << 7)
33#define ATA_PABX_I2S_MODE (1 << 8)
34#define CAML_LCDW_MODE (1 << 9)
35#define CAMU_LCD_MODE (1 << 10)
36#define CAMU_WLCD_MODE (1 << 11)
37#define CAML_LCD_MODE (1 << 12)
38
39static struct spear_pmx_mode pmx_mode_nand = {
40 .name = "nand",
41 .mode = NAND_MODE,
42 .reg = MODE_CONFIG_REG,
43 .mask = 0x0000000F,
44 .val = 0x00,
45};
46
47static struct spear_pmx_mode pmx_mode_nor = {
48 .name = "nor",
49 .mode = NOR_MODE,
50 .reg = MODE_CONFIG_REG,
51 .mask = 0x0000000F,
52 .val = 0x01,
53};
54
55static struct spear_pmx_mode pmx_mode_photo_frame = {
56 .name = "photo frame mode",
57 .mode = PHOTO_FRAME_MODE,
58 .reg = MODE_CONFIG_REG,
59 .mask = 0x0000000F,
60 .val = 0x02,
61};
62
63static struct spear_pmx_mode pmx_mode_lend_ip_phone = {
64 .name = "lend ip phone mode",
65 .mode = LEND_IP_PHONE_MODE,
66 .reg = MODE_CONFIG_REG,
67 .mask = 0x0000000F,
68 .val = 0x03,
69};
70
71static struct spear_pmx_mode pmx_mode_hend_ip_phone = {
72 .name = "hend ip phone mode",
73 .mode = HEND_IP_PHONE_MODE,
74 .reg = MODE_CONFIG_REG,
75 .mask = 0x0000000F,
76 .val = 0x04,
77};
78
79static struct spear_pmx_mode pmx_mode_lend_wifi_phone = {
80 .name = "lend wifi phone mode",
81 .mode = LEND_WIFI_PHONE_MODE,
82 .reg = MODE_CONFIG_REG,
83 .mask = 0x0000000F,
84 .val = 0x05,
85};
86
87static struct spear_pmx_mode pmx_mode_hend_wifi_phone = {
88 .name = "hend wifi phone mode",
89 .mode = HEND_WIFI_PHONE_MODE,
90 .reg = MODE_CONFIG_REG,
91 .mask = 0x0000000F,
92 .val = 0x06,
93};
94
95static struct spear_pmx_mode pmx_mode_ata_pabx_wi2s = {
96 .name = "ata pabx wi2s mode",
97 .mode = ATA_PABX_WI2S_MODE,
98 .reg = MODE_CONFIG_REG,
99 .mask = 0x0000000F,
100 .val = 0x07,
101};
102
103static struct spear_pmx_mode pmx_mode_ata_pabx_i2s = {
104 .name = "ata pabx i2s mode",
105 .mode = ATA_PABX_I2S_MODE,
106 .reg = MODE_CONFIG_REG,
107 .mask = 0x0000000F,
108 .val = 0x08,
109};
110
111static struct spear_pmx_mode pmx_mode_caml_lcdw = {
112 .name = "caml lcdw mode",
113 .mode = CAML_LCDW_MODE,
114 .reg = MODE_CONFIG_REG,
115 .mask = 0x0000000F,
116 .val = 0x0C,
117};
118
119static struct spear_pmx_mode pmx_mode_camu_lcd = {
120 .name = "camu lcd mode",
121 .mode = CAMU_LCD_MODE,
122 .reg = MODE_CONFIG_REG,
123 .mask = 0x0000000F,
124 .val = 0x0D,
125};
126
127static struct spear_pmx_mode pmx_mode_camu_wlcd = {
128 .name = "camu wlcd mode",
129 .mode = CAMU_WLCD_MODE,
130 .reg = MODE_CONFIG_REG,
131 .mask = 0x0000000F,
132 .val = 0xE,
133};
134
135static struct spear_pmx_mode pmx_mode_caml_lcd = {
136 .name = "caml lcd mode",
137 .mode = CAML_LCD_MODE,
138 .reg = MODE_CONFIG_REG,
139 .mask = 0x0000000F,
140 .val = 0x0F,
141};
142
143static struct spear_pmx_mode *spear300_pmx_modes[] = {
144 &pmx_mode_nand,
145 &pmx_mode_nor,
146 &pmx_mode_photo_frame,
147 &pmx_mode_lend_ip_phone,
148 &pmx_mode_hend_ip_phone,
149 &pmx_mode_lend_wifi_phone,
150 &pmx_mode_hend_wifi_phone,
151 &pmx_mode_ata_pabx_wi2s,
152 &pmx_mode_ata_pabx_i2s,
153 &pmx_mode_caml_lcdw,
154 &pmx_mode_camu_lcd,
155 &pmx_mode_camu_wlcd,
156 &pmx_mode_caml_lcd,
157};
158
159/* fsmc_2chips_pins */
160static const unsigned fsmc_2chips_pins[] = { 1, 97 };
161static struct spear_muxreg fsmc_2chips_muxreg[] = {
162 {
163 .reg = PMX_CONFIG_REG,
164 .mask = PMX_FIRDA_MASK,
165 .val = 0,
166 },
167};
168
169static struct spear_modemux fsmc_2chips_modemux[] = {
170 {
171 .modes = NAND_MODE | NOR_MODE | PHOTO_FRAME_MODE |
172 ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE,
173 .muxregs = fsmc_2chips_muxreg,
174 .nmuxregs = ARRAY_SIZE(fsmc_2chips_muxreg),
175 },
176};
177
178static struct spear_pingroup fsmc_2chips_pingroup = {
179 .name = "fsmc_2chips_grp",
180 .pins = fsmc_2chips_pins,
181 .npins = ARRAY_SIZE(fsmc_2chips_pins),
182 .modemuxs = fsmc_2chips_modemux,
183 .nmodemuxs = ARRAY_SIZE(fsmc_2chips_modemux),
184};
185
186/* fsmc_4chips_pins */
187static const unsigned fsmc_4chips_pins[] = { 1, 2, 3, 97 };
188static struct spear_muxreg fsmc_4chips_muxreg[] = {
189 {
190 .reg = PMX_CONFIG_REG,
191 .mask = PMX_FIRDA_MASK | PMX_UART0_MASK,
192 .val = 0,
193 },
194};
195
196static struct spear_modemux fsmc_4chips_modemux[] = {
197 {
198 .modes = NAND_MODE | NOR_MODE | PHOTO_FRAME_MODE |
199 ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE,
200 .muxregs = fsmc_4chips_muxreg,
201 .nmuxregs = ARRAY_SIZE(fsmc_4chips_muxreg),
202 },
203};
204
205static struct spear_pingroup fsmc_4chips_pingroup = {
206 .name = "fsmc_4chips_grp",
207 .pins = fsmc_4chips_pins,
208 .npins = ARRAY_SIZE(fsmc_4chips_pins),
209 .modemuxs = fsmc_4chips_modemux,
210 .nmodemuxs = ARRAY_SIZE(fsmc_4chips_modemux),
211};
212
213static const char *const fsmc_grps[] = { "fsmc_2chips_grp", "fsmc_4chips_grp"
214};
215static struct spear_function fsmc_function = {
216 .name = "fsmc",
217 .groups = fsmc_grps,
218 .ngroups = ARRAY_SIZE(fsmc_grps),
219};
220
221/* clcd_lcdmode_pins */
222static const unsigned clcd_lcdmode_pins[] = { 49, 50 };
223static struct spear_muxreg clcd_lcdmode_muxreg[] = {
224 {
225 .reg = PMX_CONFIG_REG,
226 .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK,
227 .val = 0,
228 },
229};
230
231static struct spear_modemux clcd_lcdmode_modemux[] = {
232 {
233 .modes = HEND_IP_PHONE_MODE | HEND_WIFI_PHONE_MODE |
234 CAMU_LCD_MODE | CAML_LCD_MODE,
235 .muxregs = clcd_lcdmode_muxreg,
236 .nmuxregs = ARRAY_SIZE(clcd_lcdmode_muxreg),
237 },
238};
239
240static struct spear_pingroup clcd_lcdmode_pingroup = {
241 .name = "clcd_lcdmode_grp",
242 .pins = clcd_lcdmode_pins,
243 .npins = ARRAY_SIZE(clcd_lcdmode_pins),
244 .modemuxs = clcd_lcdmode_modemux,
245 .nmodemuxs = ARRAY_SIZE(clcd_lcdmode_modemux),
246};
247
248/* clcd_pfmode_pins */
249static const unsigned clcd_pfmode_pins[] = { 47, 48, 49, 50 };
250static struct spear_muxreg clcd_pfmode_muxreg[] = {
251 {
252 .reg = PMX_CONFIG_REG,
253 .mask = PMX_TIMER_2_3_MASK,
254 .val = 0,
255 },
256};
257
258static struct spear_modemux clcd_pfmode_modemux[] = {
259 {
260 .modes = PHOTO_FRAME_MODE,
261 .muxregs = clcd_pfmode_muxreg,
262 .nmuxregs = ARRAY_SIZE(clcd_pfmode_muxreg),
263 },
264};
265
266static struct spear_pingroup clcd_pfmode_pingroup = {
267 .name = "clcd_pfmode_grp",
268 .pins = clcd_pfmode_pins,
269 .npins = ARRAY_SIZE(clcd_pfmode_pins),
270 .modemuxs = clcd_pfmode_modemux,
271 .nmodemuxs = ARRAY_SIZE(clcd_pfmode_modemux),
272};
273
274static const char *const clcd_grps[] = { "clcd_lcdmode_grp", "clcd_pfmode_grp"
275};
276static struct spear_function clcd_function = {
277 .name = "clcd",
278 .groups = clcd_grps,
279 .ngroups = ARRAY_SIZE(clcd_grps),
280};
281
282/* tdm_pins */
283static const unsigned tdm_pins[] = { 34, 35, 36, 37, 38 };
284static struct spear_muxreg tdm_muxreg[] = {
285 {
286 .reg = PMX_CONFIG_REG,
287 .mask = PMX_UART0_MODEM_MASK | PMX_SSP_CS_MASK,
288 .val = 0,
289 },
290};
291
292static struct spear_modemux tdm_modemux[] = {
293 {
294 .modes = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE |
295 HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE
296 | HEND_WIFI_PHONE_MODE | ATA_PABX_WI2S_MODE
297 | ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE
298 | CAMU_WLCD_MODE | CAML_LCD_MODE,
299 .muxregs = tdm_muxreg,
300 .nmuxregs = ARRAY_SIZE(tdm_muxreg),
301 },
302};
303
304static struct spear_pingroup tdm_pingroup = {
305 .name = "tdm_grp",
306 .pins = tdm_pins,
307 .npins = ARRAY_SIZE(tdm_pins),
308 .modemuxs = tdm_modemux,
309 .nmodemuxs = ARRAY_SIZE(tdm_modemux),
310};
311
312static const char *const tdm_grps[] = { "tdm_grp" };
313static struct spear_function tdm_function = {
314 .name = "tdm",
315 .groups = tdm_grps,
316 .ngroups = ARRAY_SIZE(tdm_grps),
317};
318
319/* i2c_clk_pins */
320static const unsigned i2c_clk_pins[] = { 45, 46, 47, 48 };
321static struct spear_muxreg i2c_clk_muxreg[] = {
322 {
323 .reg = PMX_CONFIG_REG,
324 .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK,
325 .val = 0,
326 },
327};
328
329static struct spear_modemux i2c_clk_modemux[] = {
330 {
331 .modes = LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE |
332 LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE |
333 ATA_PABX_WI2S_MODE | ATA_PABX_I2S_MODE | CAML_LCDW_MODE
334 | CAML_LCD_MODE,
335 .muxregs = i2c_clk_muxreg,
336 .nmuxregs = ARRAY_SIZE(i2c_clk_muxreg),
337 },
338};
339
340static struct spear_pingroup i2c_clk_pingroup = {
341 .name = "i2c_clk_grp_grp",
342 .pins = i2c_clk_pins,
343 .npins = ARRAY_SIZE(i2c_clk_pins),
344 .modemuxs = i2c_clk_modemux,
345 .nmodemuxs = ARRAY_SIZE(i2c_clk_modemux),
346};
347
348static const char *const i2c_grps[] = { "i2c_clk_grp" };
349static struct spear_function i2c_function = {
350 .name = "i2c1",
351 .groups = i2c_grps,
352 .ngroups = ARRAY_SIZE(i2c_grps),
353};
354
355/* caml_pins */
356static const unsigned caml_pins[] = { 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 };
357static struct spear_muxreg caml_muxreg[] = {
358 {
359 .reg = PMX_CONFIG_REG,
360 .mask = PMX_MII_MASK,
361 .val = 0,
362 },
363};
364
365static struct spear_modemux caml_modemux[] = {
366 {
367 .modes = CAML_LCDW_MODE | CAML_LCD_MODE,
368 .muxregs = caml_muxreg,
369 .nmuxregs = ARRAY_SIZE(caml_muxreg),
370 },
371};
372
373static struct spear_pingroup caml_pingroup = {
374 .name = "caml_grp",
375 .pins = caml_pins,
376 .npins = ARRAY_SIZE(caml_pins),
377 .modemuxs = caml_modemux,
378 .nmodemuxs = ARRAY_SIZE(caml_modemux),
379};
380
381/* camu_pins */
382static const unsigned camu_pins[] = { 16, 17, 18, 19, 20, 21, 45, 46, 47, 48 };
383static struct spear_muxreg camu_muxreg[] = {
384 {
385 .reg = PMX_CONFIG_REG,
386 .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK | PMX_MII_MASK,
387 .val = 0,
388 },
389};
390
391static struct spear_modemux camu_modemux[] = {
392 {
393 .modes = CAMU_LCD_MODE | CAMU_WLCD_MODE,
394 .muxregs = camu_muxreg,
395 .nmuxregs = ARRAY_SIZE(camu_muxreg),
396 },
397};
398
399static struct spear_pingroup camu_pingroup = {
400 .name = "camu_grp",
401 .pins = camu_pins,
402 .npins = ARRAY_SIZE(camu_pins),
403 .modemuxs = camu_modemux,
404 .nmodemuxs = ARRAY_SIZE(camu_modemux),
405};
406
407static const char *const cam_grps[] = { "caml_grp", "camu_grp" };
408static struct spear_function cam_function = {
409 .name = "cam",
410 .groups = cam_grps,
411 .ngroups = ARRAY_SIZE(cam_grps),
412};
413
414/* dac_pins */
415static const unsigned dac_pins[] = { 43, 44 };
416static struct spear_muxreg dac_muxreg[] = {
417 {
418 .reg = PMX_CONFIG_REG,
419 .mask = PMX_TIMER_0_1_MASK,
420 .val = 0,
421 },
422};
423
424static struct spear_modemux dac_modemux[] = {
425 {
426 .modes = ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE
427 | CAMU_WLCD_MODE | CAML_LCD_MODE,
428 .muxregs = dac_muxreg,
429 .nmuxregs = ARRAY_SIZE(dac_muxreg),
430 },
431};
432
433static struct spear_pingroup dac_pingroup = {
434 .name = "dac_grp",
435 .pins = dac_pins,
436 .npins = ARRAY_SIZE(dac_pins),
437 .modemuxs = dac_modemux,
438 .nmodemuxs = ARRAY_SIZE(dac_modemux),
439};
440
441static const char *const dac_grps[] = { "dac_grp" };
442static struct spear_function dac_function = {
443 .name = "dac",
444 .groups = dac_grps,
445 .ngroups = ARRAY_SIZE(dac_grps),
446};
447
448/* i2s_pins */
449static const unsigned i2s_pins[] = { 39, 40, 41, 42 };
450static struct spear_muxreg i2s_muxreg[] = {
451 {
452 .reg = PMX_CONFIG_REG,
453 .mask = PMX_UART0_MODEM_MASK,
454 .val = 0,
455 },
456};
457
458static struct spear_modemux i2s_modemux[] = {
459 {
460 .modes = LEND_IP_PHONE_MODE | HEND_IP_PHONE_MODE
461 | LEND_WIFI_PHONE_MODE | HEND_WIFI_PHONE_MODE |
462 ATA_PABX_I2S_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE
463 | CAMU_WLCD_MODE | CAML_LCD_MODE,
464 .muxregs = i2s_muxreg,
465 .nmuxregs = ARRAY_SIZE(i2s_muxreg),
466 },
467};
468
469static struct spear_pingroup i2s_pingroup = {
470 .name = "i2s_grp",
471 .pins = i2s_pins,
472 .npins = ARRAY_SIZE(i2s_pins),
473 .modemuxs = i2s_modemux,
474 .nmodemuxs = ARRAY_SIZE(i2s_modemux),
475};
476
477static const char *const i2s_grps[] = { "i2s_grp" };
478static struct spear_function i2s_function = {
479 .name = "i2s",
480 .groups = i2s_grps,
481 .ngroups = ARRAY_SIZE(i2s_grps),
482};
483
484/* sdhci_4bit_pins */
485static const unsigned sdhci_4bit_pins[] = { 28, 29, 30, 31, 32, 33 };
486static struct spear_muxreg sdhci_4bit_muxreg[] = {
487 {
488 .reg = PMX_CONFIG_REG,
489 .mask = PMX_GPIO_PIN0_MASK | PMX_GPIO_PIN1_MASK |
490 PMX_GPIO_PIN2_MASK | PMX_GPIO_PIN3_MASK |
491 PMX_GPIO_PIN4_MASK | PMX_GPIO_PIN5_MASK,
492 .val = 0,
493 },
494};
495
496static struct spear_modemux sdhci_4bit_modemux[] = {
497 {
498 .modes = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE |
499 HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE |
500 HEND_WIFI_PHONE_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE |
501 CAMU_WLCD_MODE | CAML_LCD_MODE | ATA_PABX_WI2S_MODE,
502 .muxregs = sdhci_4bit_muxreg,
503 .nmuxregs = ARRAY_SIZE(sdhci_4bit_muxreg),
504 },
505};
506
507static struct spear_pingroup sdhci_4bit_pingroup = {
508 .name = "sdhci_4bit_grp",
509 .pins = sdhci_4bit_pins,
510 .npins = ARRAY_SIZE(sdhci_4bit_pins),
511 .modemuxs = sdhci_4bit_modemux,
512 .nmodemuxs = ARRAY_SIZE(sdhci_4bit_modemux),
513};
514
515/* sdhci_8bit_pins */
516static const unsigned sdhci_8bit_pins[] = { 24, 25, 26, 27, 28, 29, 30, 31, 32,
517 33 };
518static struct spear_muxreg sdhci_8bit_muxreg[] = {
519 {
520 .reg = PMX_CONFIG_REG,
521 .mask = PMX_GPIO_PIN0_MASK | PMX_GPIO_PIN1_MASK |
522 PMX_GPIO_PIN2_MASK | PMX_GPIO_PIN3_MASK |
523 PMX_GPIO_PIN4_MASK | PMX_GPIO_PIN5_MASK | PMX_MII_MASK,
524 .val = 0,
525 },
526};
527
528static struct spear_modemux sdhci_8bit_modemux[] = {
529 {
530 .modes = PHOTO_FRAME_MODE | LEND_IP_PHONE_MODE |
531 HEND_IP_PHONE_MODE | LEND_WIFI_PHONE_MODE |
532 HEND_WIFI_PHONE_MODE | CAML_LCDW_MODE | CAMU_LCD_MODE |
533 CAMU_WLCD_MODE | CAML_LCD_MODE,
534 .muxregs = sdhci_8bit_muxreg,
535 .nmuxregs = ARRAY_SIZE(sdhci_8bit_muxreg),
536 },
537};
538
539static struct spear_pingroup sdhci_8bit_pingroup = {
540 .name = "sdhci_8bit_grp",
541 .pins = sdhci_8bit_pins,
542 .npins = ARRAY_SIZE(sdhci_8bit_pins),
543 .modemuxs = sdhci_8bit_modemux,
544 .nmodemuxs = ARRAY_SIZE(sdhci_8bit_modemux),
545};
546
547static const char *const sdhci_grps[] = { "sdhci_4bit_grp", "sdhci_8bit_grp" };
548static struct spear_function sdhci_function = {
549 .name = "sdhci",
550 .groups = sdhci_grps,
551 .ngroups = ARRAY_SIZE(sdhci_grps),
552};
553
554/* gpio1_0_to_3_pins */
555static const unsigned gpio1_0_to_3_pins[] = { 39, 40, 41, 42 };
556static struct spear_muxreg gpio1_0_to_3_muxreg[] = {
557 {
558 .reg = PMX_CONFIG_REG,
559 .mask = PMX_UART0_MODEM_MASK,
560 .val = 0,
561 },
562};
563
564static struct spear_modemux gpio1_0_to_3_modemux[] = {
565 {
566 .modes = PHOTO_FRAME_MODE,
567 .muxregs = gpio1_0_to_3_muxreg,
568 .nmuxregs = ARRAY_SIZE(gpio1_0_to_3_muxreg),
569 },
570};
571
572static struct spear_pingroup gpio1_0_to_3_pingroup = {
573 .name = "gpio1_0_to_3_grp",
574 .pins = gpio1_0_to_3_pins,
575 .npins = ARRAY_SIZE(gpio1_0_to_3_pins),
576 .modemuxs = gpio1_0_to_3_modemux,
577 .nmodemuxs = ARRAY_SIZE(gpio1_0_to_3_modemux),
578};
579
580/* gpio1_4_to_7_pins */
581static const unsigned gpio1_4_to_7_pins[] = { 43, 44, 45, 46 };
582
583static struct spear_muxreg gpio1_4_to_7_muxreg[] = {
584 {
585 .reg = PMX_CONFIG_REG,
586 .mask = PMX_TIMER_0_1_MASK | PMX_TIMER_2_3_MASK,
587 .val = 0,
588 },
589};
590
591static struct spear_modemux gpio1_4_to_7_modemux[] = {
592 {
593 .modes = PHOTO_FRAME_MODE,
594 .muxregs = gpio1_4_to_7_muxreg,
595 .nmuxregs = ARRAY_SIZE(gpio1_4_to_7_muxreg),
596 },
597};
598
599static struct spear_pingroup gpio1_4_to_7_pingroup = {
600 .name = "gpio1_4_to_7_grp",
601 .pins = gpio1_4_to_7_pins,
602 .npins = ARRAY_SIZE(gpio1_4_to_7_pins),
603 .modemuxs = gpio1_4_to_7_modemux,
604 .nmodemuxs = ARRAY_SIZE(gpio1_4_to_7_modemux),
605};
606
607static const char *const gpio1_grps[] = { "gpio1_0_to_3_grp", "gpio1_4_to_7_grp"
608};
609static struct spear_function gpio1_function = {
610 .name = "gpio1",
611 .groups = gpio1_grps,
612 .ngroups = ARRAY_SIZE(gpio1_grps),
613};
614
615/* pingroups */
616static struct spear_pingroup *spear300_pingroups[] = {
617 SPEAR3XX_COMMON_PINGROUPS,
618 &fsmc_2chips_pingroup,
619 &fsmc_4chips_pingroup,
620 &clcd_lcdmode_pingroup,
621 &clcd_pfmode_pingroup,
622 &tdm_pingroup,
623 &i2c_clk_pingroup,
624 &caml_pingroup,
625 &camu_pingroup,
626 &dac_pingroup,
627 &i2s_pingroup,
628 &sdhci_4bit_pingroup,
629 &sdhci_8bit_pingroup,
630 &gpio1_0_to_3_pingroup,
631 &gpio1_4_to_7_pingroup,
632};
633
634/* functions */
635static struct spear_function *spear300_functions[] = {
636 SPEAR3XX_COMMON_FUNCTIONS,
637 &fsmc_function,
638 &clcd_function,
639 &tdm_function,
640 &i2c_function,
641 &cam_function,
642 &dac_function,
643 &i2s_function,
644 &sdhci_function,
645 &gpio1_function,
646};
647
648static const struct of_device_id spear300_pinctrl_of_match[] = {
649 {
650 .compatible = "st,spear300-pinmux",
651 },
652 {},
653};
654
655static int spear300_pinctrl_probe(struct platform_device *pdev)
656{
657 spear3xx_machdata.groups = spear300_pingroups;
658 spear3xx_machdata.ngroups = ARRAY_SIZE(spear300_pingroups);
659 spear3xx_machdata.functions = spear300_functions;
660 spear3xx_machdata.nfunctions = ARRAY_SIZE(spear300_functions);
661 spear3xx_machdata.gpio_pingroups = NULL;
662 spear3xx_machdata.ngpio_pingroups = 0;
663
664 spear3xx_machdata.modes_supported = true;
665 spear3xx_machdata.pmx_modes = spear300_pmx_modes;
666 spear3xx_machdata.npmx_modes = ARRAY_SIZE(spear300_pmx_modes);
667
668 pmx_init_addr(machdata: &spear3xx_machdata, PMX_CONFIG_REG);
669
670 return spear_pinctrl_probe(pdev, machdata: &spear3xx_machdata);
671}
672
673static struct platform_driver spear300_pinctrl_driver = {
674 .driver = {
675 .name = DRIVER_NAME,
676 .of_match_table = spear300_pinctrl_of_match,
677 },
678 .probe = spear300_pinctrl_probe,
679};
680
681static int __init spear300_pinctrl_init(void)
682{
683 return platform_driver_register(&spear300_pinctrl_driver);
684}
685arch_initcall(spear300_pinctrl_init);
686

source code of linux/drivers/pinctrl/spear/pinctrl-spear300.c