1 /*
2 * Marvell Dove pinctrl driver based on mvebu pinctrl core
3 *
4 * Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
12 #include <linux/err.h>
13 #include <linux/init.h>
14 #include <linux/io.h>
15 #include <linux/module.h>
16 #include <linux/bitops.h>
17 #include <linux/platform_device.h>
18 #include <linux/clk.h>
19 #include <linux/of.h>
20 #include <linux/of_device.h>
21 #include <linux/mfd/syscon.h>
22 #include <linux/pinctrl/pinctrl.h>
23 #include <linux/regmap.h>
24
25 #include "pinctrl-mvebu.h"
26
27 /* Internal registers can be configured at any 1 MiB aligned address */
28 #define INT_REGS_MASK ~(SZ_1M - 1)
29 #define MPP4_REGS_OFFS 0xd0440
30 #define PMU_REGS_OFFS 0xd802c
31 #define GC_REGS_OFFS 0xe802c
32
33 /* MPP Base registers */
34 #define PMU_MPP_GENERAL_CTRL 0x10
35 #define AU0_AC97_SEL BIT(16)
36
37 /* MPP Control 4 register */
38 #define SPI_GPIO_SEL BIT(5)
39 #define UART1_GPIO_SEL BIT(4)
40 #define AU1_GPIO_SEL BIT(3)
41 #define CAM_GPIO_SEL BIT(2)
42 #define SD1_GPIO_SEL BIT(1)
43 #define SD0_GPIO_SEL BIT(0)
44
45 /* PMU Signal Select registers */
46 #define PMU_SIGNAL_SELECT_0 0x00
47 #define PMU_SIGNAL_SELECT_1 0x04
48
49 /* Global Config regmap registers */
50 #define GLOBAL_CONFIG_1 0x00
51 #define TWSI_ENABLE_OPTION1 BIT(7)
52 #define GLOBAL_CONFIG_2 0x04
53 #define TWSI_ENABLE_OPTION2 BIT(20)
54 #define TWSI_ENABLE_OPTION3 BIT(21)
55 #define TWSI_OPTION3_GPIO BIT(22)
56 #define SSP_CTRL_STATUS_1 0x08
57 #define SSP_ON_AU1 BIT(0)
58 #define MPP_GENERAL_CONFIG 0x10
59 #define AU1_SPDIFO_GPIO_EN BIT(1)
60 #define NAND_GPIO_EN BIT(0)
61
62 #define CONFIG_PMU BIT(4)
63
64 static void __iomem *mpp_base;
65 static void __iomem *mpp4_base;
66 static void __iomem *pmu_base;
67 static struct regmap *gconfmap;
68
dove_mpp_ctrl_get(unsigned pid,unsigned long * config)69 static int dove_mpp_ctrl_get(unsigned pid, unsigned long *config)
70 {
71 return default_mpp_ctrl_get(mpp_base, pid, config);
72 }
73
dove_mpp_ctrl_set(unsigned pid,unsigned long config)74 static int dove_mpp_ctrl_set(unsigned pid, unsigned long config)
75 {
76 return default_mpp_ctrl_set(mpp_base, pid, config);
77 }
78
dove_pmu_mpp_ctrl_get(unsigned pid,unsigned long * config)79 static int dove_pmu_mpp_ctrl_get(unsigned pid, unsigned long *config)
80 {
81 unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
82 unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
83 unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL);
84 unsigned long func;
85
86 if ((pmu & BIT(pid)) == 0)
87 return default_mpp_ctrl_get(mpp_base, pid, config);
88
89 func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off);
90 *config = (func >> shift) & MVEBU_MPP_MASK;
91 *config |= CONFIG_PMU;
92
93 return 0;
94 }
95
dove_pmu_mpp_ctrl_set(unsigned pid,unsigned long config)96 static int dove_pmu_mpp_ctrl_set(unsigned pid, unsigned long config)
97 {
98 unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
99 unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS;
100 unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL);
101 unsigned long func;
102
103 if ((config & CONFIG_PMU) == 0) {
104 writel(pmu & ~BIT(pid), mpp_base + PMU_MPP_GENERAL_CTRL);
105 return default_mpp_ctrl_set(mpp_base, pid, config);
106 }
107
108 writel(pmu | BIT(pid), mpp_base + PMU_MPP_GENERAL_CTRL);
109 func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off);
110 func &= ~(MVEBU_MPP_MASK << shift);
111 func |= (config & MVEBU_MPP_MASK) << shift;
112 writel(func, pmu_base + PMU_SIGNAL_SELECT_0 + off);
113
114 return 0;
115 }
116
dove_mpp4_ctrl_get(unsigned pid,unsigned long * config)117 static int dove_mpp4_ctrl_get(unsigned pid, unsigned long *config)
118 {
119 unsigned long mpp4 = readl(mpp4_base);
120 unsigned long mask;
121
122 switch (pid) {
123 case 24: /* mpp_camera */
124 mask = CAM_GPIO_SEL;
125 break;
126 case 40: /* mpp_sdio0 */
127 mask = SD0_GPIO_SEL;
128 break;
129 case 46: /* mpp_sdio1 */
130 mask = SD1_GPIO_SEL;
131 break;
132 case 58: /* mpp_spi0 */
133 mask = SPI_GPIO_SEL;
134 break;
135 case 62: /* mpp_uart1 */
136 mask = UART1_GPIO_SEL;
137 break;
138 default:
139 return -EINVAL;
140 }
141
142 *config = ((mpp4 & mask) != 0);
143
144 return 0;
145 }
146
dove_mpp4_ctrl_set(unsigned pid,unsigned long config)147 static int dove_mpp4_ctrl_set(unsigned pid, unsigned long config)
148 {
149 unsigned long mpp4 = readl(mpp4_base);
150 unsigned long mask;
151
152 switch (pid) {
153 case 24: /* mpp_camera */
154 mask = CAM_GPIO_SEL;
155 break;
156 case 40: /* mpp_sdio0 */
157 mask = SD0_GPIO_SEL;
158 break;
159 case 46: /* mpp_sdio1 */
160 mask = SD1_GPIO_SEL;
161 break;
162 case 58: /* mpp_spi0 */
163 mask = SPI_GPIO_SEL;
164 break;
165 case 62: /* mpp_uart1 */
166 mask = UART1_GPIO_SEL;
167 break;
168 default:
169 return -EINVAL;
170 }
171
172 mpp4 &= ~mask;
173 if (config)
174 mpp4 |= mask;
175
176 writel(mpp4, mpp4_base);
177
178 return 0;
179 }
180
dove_nand_ctrl_get(unsigned pid,unsigned long * config)181 static int dove_nand_ctrl_get(unsigned pid, unsigned long *config)
182 {
183 unsigned int gmpp;
184
185 regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp);
186 *config = ((gmpp & NAND_GPIO_EN) != 0);
187
188 return 0;
189 }
190
dove_nand_ctrl_set(unsigned pid,unsigned long config)191 static int dove_nand_ctrl_set(unsigned pid, unsigned long config)
192 {
193 regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG,
194 NAND_GPIO_EN,
195 (config) ? NAND_GPIO_EN : 0);
196 return 0;
197 }
198
dove_audio0_ctrl_get(unsigned pid,unsigned long * config)199 static int dove_audio0_ctrl_get(unsigned pid, unsigned long *config)
200 {
201 unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL);
202
203 *config = ((pmu & AU0_AC97_SEL) != 0);
204
205 return 0;
206 }
207
dove_audio0_ctrl_set(unsigned pid,unsigned long config)208 static int dove_audio0_ctrl_set(unsigned pid, unsigned long config)
209 {
210 unsigned long pmu = readl(mpp_base + PMU_MPP_GENERAL_CTRL);
211
212 pmu &= ~AU0_AC97_SEL;
213 if (config)
214 pmu |= AU0_AC97_SEL;
215 writel(pmu, mpp_base + PMU_MPP_GENERAL_CTRL);
216
217 return 0;
218 }
219
dove_audio1_ctrl_get(unsigned pid,unsigned long * config)220 static int dove_audio1_ctrl_get(unsigned pid, unsigned long *config)
221 {
222 unsigned int mpp4 = readl(mpp4_base);
223 unsigned int sspc1;
224 unsigned int gmpp;
225 unsigned int gcfg2;
226
227 regmap_read(gconfmap, SSP_CTRL_STATUS_1, &sspc1);
228 regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp);
229 regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2);
230
231 *config = 0;
232 if (mpp4 & AU1_GPIO_SEL)
233 *config |= BIT(3);
234 if (sspc1 & SSP_ON_AU1)
235 *config |= BIT(2);
236 if (gmpp & AU1_SPDIFO_GPIO_EN)
237 *config |= BIT(1);
238 if (gcfg2 & TWSI_OPTION3_GPIO)
239 *config |= BIT(0);
240
241 /* SSP/TWSI only if I2S1 not set*/
242 if ((*config & BIT(3)) == 0)
243 *config &= ~(BIT(2) | BIT(0));
244 /* TWSI only if SPDIFO not set*/
245 if ((*config & BIT(1)) == 0)
246 *config &= ~BIT(0);
247 return 0;
248 }
249
dove_audio1_ctrl_set(unsigned pid,unsigned long config)250 static int dove_audio1_ctrl_set(unsigned pid, unsigned long config)
251 {
252 unsigned int mpp4 = readl(mpp4_base);
253
254 mpp4 &= ~AU1_GPIO_SEL;
255 if (config & BIT(3))
256 mpp4 |= AU1_GPIO_SEL;
257 writel(mpp4, mpp4_base);
258
259 regmap_update_bits(gconfmap, SSP_CTRL_STATUS_1,
260 SSP_ON_AU1,
261 (config & BIT(2)) ? SSP_ON_AU1 : 0);
262 regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG,
263 AU1_SPDIFO_GPIO_EN,
264 (config & BIT(1)) ? AU1_SPDIFO_GPIO_EN : 0);
265 regmap_update_bits(gconfmap, GLOBAL_CONFIG_2,
266 TWSI_OPTION3_GPIO,
267 (config & BIT(0)) ? TWSI_OPTION3_GPIO : 0);
268
269 return 0;
270 }
271
272 /* mpp[52:57] gpio pins depend heavily on current config;
273 * gpio_req does not try to mux in gpio capabilities to not
274 * break other functions. If you require all mpps as gpio
275 * enforce gpio setting by pinctrl mapping.
276 */
dove_audio1_ctrl_gpio_req(unsigned pid)277 static int dove_audio1_ctrl_gpio_req(unsigned pid)
278 {
279 unsigned long config;
280
281 dove_audio1_ctrl_get(pid, &config);
282
283 switch (config) {
284 case 0x02: /* i2s1 : gpio[56:57] */
285 case 0x0e: /* ssp : gpio[56:57] */
286 if (pid >= 56)
287 return 0;
288 return -ENOTSUPP;
289 case 0x08: /* spdifo : gpio[52:55] */
290 case 0x0b: /* twsi : gpio[52:55] */
291 if (pid <= 55)
292 return 0;
293 return -ENOTSUPP;
294 case 0x0a: /* all gpio */
295 return 0;
296 /* 0x00 : i2s1/spdifo : no gpio */
297 /* 0x0c : ssp/spdifo : no gpio */
298 /* 0x0f : ssp/twsi : no gpio */
299 }
300 return -ENOTSUPP;
301 }
302
303 /* mpp[52:57] has gpio pins capable of in and out */
dove_audio1_ctrl_gpio_dir(unsigned pid,bool input)304 static int dove_audio1_ctrl_gpio_dir(unsigned pid, bool input)
305 {
306 if (pid < 52 || pid > 57)
307 return -ENOTSUPP;
308 return 0;
309 }
310
dove_twsi_ctrl_get(unsigned pid,unsigned long * config)311 static int dove_twsi_ctrl_get(unsigned pid, unsigned long *config)
312 {
313 unsigned int gcfg1;
314 unsigned int gcfg2;
315
316 regmap_read(gconfmap, GLOBAL_CONFIG_1, &gcfg1);
317 regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2);
318
319 *config = 0;
320 if (gcfg1 & TWSI_ENABLE_OPTION1)
321 *config = 1;
322 else if (gcfg2 & TWSI_ENABLE_OPTION2)
323 *config = 2;
324 else if (gcfg2 & TWSI_ENABLE_OPTION3)
325 *config = 3;
326
327 return 0;
328 }
329
dove_twsi_ctrl_set(unsigned pid,unsigned long config)330 static int dove_twsi_ctrl_set(unsigned pid, unsigned long config)
331 {
332 unsigned int gcfg1 = 0;
333 unsigned int gcfg2 = 0;
334
335 switch (config) {
336 case 1:
337 gcfg1 = TWSI_ENABLE_OPTION1;
338 break;
339 case 2:
340 gcfg2 = TWSI_ENABLE_OPTION2;
341 break;
342 case 3:
343 gcfg2 = TWSI_ENABLE_OPTION3;
344 break;
345 }
346
347 regmap_update_bits(gconfmap, GLOBAL_CONFIG_1,
348 TWSI_ENABLE_OPTION1,
349 gcfg1);
350 regmap_update_bits(gconfmap, GLOBAL_CONFIG_2,
351 TWSI_ENABLE_OPTION2 | TWSI_ENABLE_OPTION3,
352 gcfg2);
353
354 return 0;
355 }
356
357 static struct mvebu_mpp_ctrl dove_mpp_controls[] = {
358 MPP_FUNC_CTRL(0, 15, NULL, dove_pmu_mpp_ctrl),
359 MPP_FUNC_CTRL(16, 23, NULL, dove_mpp_ctrl),
360 MPP_FUNC_CTRL(24, 39, "mpp_camera", dove_mpp4_ctrl),
361 MPP_FUNC_CTRL(40, 45, "mpp_sdio0", dove_mpp4_ctrl),
362 MPP_FUNC_CTRL(46, 51, "mpp_sdio1", dove_mpp4_ctrl),
363 MPP_FUNC_GPIO_CTRL(52, 57, "mpp_audio1", dove_audio1_ctrl),
364 MPP_FUNC_CTRL(58, 61, "mpp_spi0", dove_mpp4_ctrl),
365 MPP_FUNC_CTRL(62, 63, "mpp_uart1", dove_mpp4_ctrl),
366 MPP_FUNC_CTRL(64, 71, "mpp_nand", dove_nand_ctrl),
367 MPP_FUNC_CTRL(72, 72, "audio0", dove_audio0_ctrl),
368 MPP_FUNC_CTRL(73, 73, "twsi", dove_twsi_ctrl),
369 };
370
371 static struct mvebu_mpp_mode dove_mpp_modes[] = {
372 MPP_MODE(0,
373 MPP_FUNCTION(0x00, "gpio", NULL),
374 MPP_FUNCTION(0x02, "uart2", "rts"),
375 MPP_FUNCTION(0x03, "sdio0", "cd"),
376 MPP_FUNCTION(0x0f, "lcd0", "pwm"),
377 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
378 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
379 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
380 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
381 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
382 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
383 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
384 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
385 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
386 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
387 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
388 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
389 MPP_MODE(1,
390 MPP_FUNCTION(0x00, "gpio", NULL),
391 MPP_FUNCTION(0x02, "uart2", "cts"),
392 MPP_FUNCTION(0x03, "sdio0", "wp"),
393 MPP_FUNCTION(0x0f, "lcd1", "pwm"),
394 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
395 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
396 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
397 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
398 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
399 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
400 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
401 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
402 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
403 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
404 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
405 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
406 MPP_MODE(2,
407 MPP_FUNCTION(0x00, "gpio", NULL),
408 MPP_FUNCTION(0x01, "sata", "prsnt"),
409 MPP_FUNCTION(0x02, "uart2", "txd"),
410 MPP_FUNCTION(0x03, "sdio0", "buspwr"),
411 MPP_FUNCTION(0x04, "uart1", "rts"),
412 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
413 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
414 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
415 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
416 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
417 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
418 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
419 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
420 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
421 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
422 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
423 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
424 MPP_MODE(3,
425 MPP_FUNCTION(0x00, "gpio", NULL),
426 MPP_FUNCTION(0x01, "sata", "act"),
427 MPP_FUNCTION(0x02, "uart2", "rxd"),
428 MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
429 MPP_FUNCTION(0x04, "uart1", "cts"),
430 MPP_FUNCTION(0x0f, "lcd-spi", "cs1"),
431 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
432 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
433 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
434 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
435 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
436 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
437 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
438 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
439 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
440 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
441 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
442 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
443 MPP_MODE(4,
444 MPP_FUNCTION(0x00, "gpio", NULL),
445 MPP_FUNCTION(0x02, "uart3", "rts"),
446 MPP_FUNCTION(0x03, "sdio1", "cd"),
447 MPP_FUNCTION(0x04, "spi1", "miso"),
448 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
449 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
450 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
451 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
452 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
453 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
454 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
455 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
456 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
457 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
458 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
459 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
460 MPP_MODE(5,
461 MPP_FUNCTION(0x00, "gpio", NULL),
462 MPP_FUNCTION(0x02, "uart3", "cts"),
463 MPP_FUNCTION(0x03, "sdio1", "wp"),
464 MPP_FUNCTION(0x04, "spi1", "cs"),
465 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
466 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
467 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
468 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
469 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
470 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
471 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
472 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
473 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
474 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
475 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
476 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
477 MPP_MODE(6,
478 MPP_FUNCTION(0x00, "gpio", NULL),
479 MPP_FUNCTION(0x02, "uart3", "txd"),
480 MPP_FUNCTION(0x03, "sdio1", "buspwr"),
481 MPP_FUNCTION(0x04, "spi1", "mosi"),
482 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
483 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
484 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
485 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
486 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
487 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
488 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
489 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
490 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
491 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
492 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
493 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
494 MPP_MODE(7,
495 MPP_FUNCTION(0x00, "gpio", NULL),
496 MPP_FUNCTION(0x02, "uart3", "rxd"),
497 MPP_FUNCTION(0x03, "sdio1", "ledctrl"),
498 MPP_FUNCTION(0x04, "spi1", "sck"),
499 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
500 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
501 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
502 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
503 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
504 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
505 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL),
506 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
507 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
508 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
509 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
510 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
511 MPP_MODE(8,
512 MPP_FUNCTION(0x00, "gpio", NULL),
513 MPP_FUNCTION(0x01, "watchdog", "rstout"),
514 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
515 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
516 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
517 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
518 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
519 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
520 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
521 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
522 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
523 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
524 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
525 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
526 MPP_MODE(9,
527 MPP_FUNCTION(0x00, "gpio", NULL),
528 MPP_FUNCTION(0x05, "pex1", "clkreq"),
529 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
530 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
531 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
532 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
533 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
534 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
535 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
536 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
537 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
538 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
539 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
540 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
541 MPP_MODE(10,
542 MPP_FUNCTION(0x00, "gpio", NULL),
543 MPP_FUNCTION(0x05, "ssp", "sclk"),
544 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
545 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
546 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
547 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
548 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
549 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
550 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
551 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
552 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
553 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
554 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
555 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
556 MPP_MODE(11,
557 MPP_FUNCTION(0x00, "gpio", NULL),
558 MPP_FUNCTION(0x01, "sata", "prsnt"),
559 MPP_FUNCTION(0x02, "sata-1", "act"),
560 MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
561 MPP_FUNCTION(0x04, "sdio1", "ledctrl"),
562 MPP_FUNCTION(0x05, "pex0", "clkreq"),
563 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
564 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
565 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
566 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
567 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
568 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
569 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
570 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
571 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
572 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
573 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
574 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
575 MPP_MODE(12,
576 MPP_FUNCTION(0x00, "gpio", NULL),
577 MPP_FUNCTION(0x01, "sata", "act"),
578 MPP_FUNCTION(0x02, "uart2", "rts"),
579 MPP_FUNCTION(0x03, "audio0", "extclk"),
580 MPP_FUNCTION(0x04, "sdio1", "cd"),
581 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
582 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
583 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
584 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
585 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
586 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
587 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
588 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
589 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
590 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
591 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
592 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
593 MPP_MODE(13,
594 MPP_FUNCTION(0x00, "gpio", NULL),
595 MPP_FUNCTION(0x02, "uart2", "cts"),
596 MPP_FUNCTION(0x03, "audio1", "extclk"),
597 MPP_FUNCTION(0x04, "sdio1", "wp"),
598 MPP_FUNCTION(0x05, "ssp", "extclk"),
599 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
600 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
601 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
602 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
603 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
604 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
605 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
606 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
607 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
608 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
609 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
610 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
611 MPP_MODE(14,
612 MPP_FUNCTION(0x00, "gpio", NULL),
613 MPP_FUNCTION(0x02, "uart2", "txd"),
614 MPP_FUNCTION(0x04, "sdio1", "buspwr"),
615 MPP_FUNCTION(0x05, "ssp", "rxd"),
616 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
617 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
618 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
619 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
620 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
621 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
622 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
623 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
624 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
625 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
626 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
627 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
628 MPP_MODE(15,
629 MPP_FUNCTION(0x00, "gpio", NULL),
630 MPP_FUNCTION(0x02, "uart2", "rxd"),
631 MPP_FUNCTION(0x04, "sdio1", "ledctrl"),
632 MPP_FUNCTION(0x05, "ssp", "sfrm"),
633 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL),
634 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL),
635 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL),
636 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"),
637 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL),
638 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL),
639 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL),
640 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL),
641 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL),
642 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL),
643 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL),
644 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)),
645 MPP_MODE(16,
646 MPP_FUNCTION(0x00, "gpio", NULL),
647 MPP_FUNCTION(0x02, "uart3", "rts"),
648 MPP_FUNCTION(0x03, "sdio0", "cd"),
649 MPP_FUNCTION(0x04, "lcd-spi", "cs1"),
650 MPP_FUNCTION(0x05, "ac97", "sdi1")),
651 MPP_MODE(17,
652 MPP_FUNCTION(0x00, "gpio", NULL),
653 MPP_FUNCTION(0x01, "ac97-1", "sysclko"),
654 MPP_FUNCTION(0x02, "uart3", "cts"),
655 MPP_FUNCTION(0x03, "sdio0", "wp"),
656 MPP_FUNCTION(0x04, "twsi", "sda"),
657 MPP_FUNCTION(0x05, "ac97", "sdi2")),
658 MPP_MODE(18,
659 MPP_FUNCTION(0x00, "gpio", NULL),
660 MPP_FUNCTION(0x02, "uart3", "txd"),
661 MPP_FUNCTION(0x03, "sdio0", "buspwr"),
662 MPP_FUNCTION(0x04, "lcd0", "pwm"),
663 MPP_FUNCTION(0x05, "ac97", "sdi3")),
664 MPP_MODE(19,
665 MPP_FUNCTION(0x00, "gpio", NULL),
666 MPP_FUNCTION(0x02, "uart3", "rxd"),
667 MPP_FUNCTION(0x03, "sdio0", "ledctrl"),
668 MPP_FUNCTION(0x04, "twsi", "sck")),
669 MPP_MODE(20,
670 MPP_FUNCTION(0x00, "gpio", NULL),
671 MPP_FUNCTION(0x01, "ac97", "sysclko"),
672 MPP_FUNCTION(0x02, "lcd-spi", "miso"),
673 MPP_FUNCTION(0x03, "sdio1", "cd"),
674 MPP_FUNCTION(0x05, "sdio0", "cd"),
675 MPP_FUNCTION(0x06, "spi1", "miso")),
676 MPP_MODE(21,
677 MPP_FUNCTION(0x00, "gpio", NULL),
678 MPP_FUNCTION(0x01, "uart1", "rts"),
679 MPP_FUNCTION(0x02, "lcd-spi", "cs0"),
680 MPP_FUNCTION(0x03, "sdio1", "wp"),
681 MPP_FUNCTION(0x04, "ssp", "sfrm"),
682 MPP_FUNCTION(0x05, "sdio0", "wp"),
683 MPP_FUNCTION(0x06, "spi1", "cs")),
684 MPP_MODE(22,
685 MPP_FUNCTION(0x00, "gpio", NULL),
686 MPP_FUNCTION(0x01, "uart1", "cts"),
687 MPP_FUNCTION(0x02, "lcd-spi", "mosi"),
688 MPP_FUNCTION(0x03, "sdio1", "buspwr"),
689 MPP_FUNCTION(0x04, "ssp", "txd"),
690 MPP_FUNCTION(0x05, "sdio0", "buspwr"),
691 MPP_FUNCTION(0x06, "spi1", "mosi")),
692 MPP_MODE(23,
693 MPP_FUNCTION(0x00, "gpio", NULL),
694 MPP_FUNCTION(0x02, "lcd-spi", "sck"),
695 MPP_FUNCTION(0x03, "sdio1", "ledctrl"),
696 MPP_FUNCTION(0x04, "ssp", "sclk"),
697 MPP_FUNCTION(0x05, "sdio0", "ledctrl"),
698 MPP_FUNCTION(0x06, "spi1", "sck")),
699 MPP_MODE(24,
700 MPP_FUNCTION(0x00, "camera", NULL),
701 MPP_FUNCTION(0x01, "gpio", NULL)),
702 MPP_MODE(40,
703 MPP_FUNCTION(0x00, "sdio0", NULL),
704 MPP_FUNCTION(0x01, "gpio", NULL)),
705 MPP_MODE(46,
706 MPP_FUNCTION(0x00, "sdio1", NULL),
707 MPP_FUNCTION(0x01, "gpio", NULL)),
708 MPP_MODE(52,
709 MPP_FUNCTION(0x00, "i2s1/spdifo", NULL),
710 MPP_FUNCTION(0x02, "i2s1", NULL),
711 MPP_FUNCTION(0x08, "spdifo", NULL),
712 MPP_FUNCTION(0x0a, "gpio", NULL),
713 MPP_FUNCTION(0x0b, "twsi", NULL),
714 MPP_FUNCTION(0x0c, "ssp/spdifo", NULL),
715 MPP_FUNCTION(0x0e, "ssp", NULL),
716 MPP_FUNCTION(0x0f, "ssp/twsi", NULL)),
717 MPP_MODE(58,
718 MPP_FUNCTION(0x00, "spi0", NULL),
719 MPP_FUNCTION(0x01, "gpio", NULL)),
720 MPP_MODE(62,
721 MPP_FUNCTION(0x00, "uart1", NULL),
722 MPP_FUNCTION(0x01, "gpio", NULL)),
723 MPP_MODE(64,
724 MPP_FUNCTION(0x00, "nand", NULL),
725 MPP_FUNCTION(0x01, "gpo", NULL)),
726 MPP_MODE(72,
727 MPP_FUNCTION(0x00, "i2s", NULL),
728 MPP_FUNCTION(0x01, "ac97", NULL)),
729 MPP_MODE(73,
730 MPP_FUNCTION(0x00, "twsi-none", NULL),
731 MPP_FUNCTION(0x01, "twsi-opt1", NULL),
732 MPP_FUNCTION(0x02, "twsi-opt2", NULL),
733 MPP_FUNCTION(0x03, "twsi-opt3", NULL)),
734 };
735
736 static struct pinctrl_gpio_range dove_mpp_gpio_ranges[] = {
737 MPP_GPIO_RANGE(0, 0, 0, 32),
738 MPP_GPIO_RANGE(1, 32, 32, 32),
739 MPP_GPIO_RANGE(2, 64, 64, 8),
740 };
741
742 static struct mvebu_pinctrl_soc_info dove_pinctrl_info = {
743 .controls = dove_mpp_controls,
744 .ncontrols = ARRAY_SIZE(dove_mpp_controls),
745 .modes = dove_mpp_modes,
746 .nmodes = ARRAY_SIZE(dove_mpp_modes),
747 .gpioranges = dove_mpp_gpio_ranges,
748 .ngpioranges = ARRAY_SIZE(dove_mpp_gpio_ranges),
749 .variant = 0,
750 };
751
752 static struct clk *clk;
753
754 static const struct of_device_id dove_pinctrl_of_match[] = {
755 { .compatible = "marvell,dove-pinctrl", .data = &dove_pinctrl_info },
756 { }
757 };
758
759 static const struct regmap_config gc_regmap_config = {
760 .reg_bits = 32,
761 .val_bits = 32,
762 .reg_stride = 4,
763 .max_register = 5,
764 };
765
dove_pinctrl_probe(struct platform_device * pdev)766 static int dove_pinctrl_probe(struct platform_device *pdev)
767 {
768 struct resource *res, *mpp_res;
769 struct resource fb_res;
770 const struct of_device_id *match =
771 of_match_device(dove_pinctrl_of_match, &pdev->dev);
772 pdev->dev.platform_data = (void *)match->data;
773
774 /*
775 * General MPP Configuration Register is part of pdma registers.
776 * grab clk to make sure it is ticking.
777 */
778 clk = devm_clk_get(&pdev->dev, NULL);
779 if (IS_ERR(clk)) {
780 dev_err(&pdev->dev, "Unable to get pdma clock");
781 return PTR_ERR(clk);
782 }
783 clk_prepare_enable(clk);
784
785 mpp_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
786 mpp_base = devm_ioremap_resource(&pdev->dev, mpp_res);
787 if (IS_ERR(mpp_base))
788 return PTR_ERR(mpp_base);
789
790 /* prepare fallback resource */
791 memcpy(&fb_res, mpp_res, sizeof(struct resource));
792 fb_res.start = 0;
793
794 res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
795 if (!res) {
796 dev_warn(&pdev->dev, "falling back to hardcoded MPP4 resource\n");
797 adjust_resource(&fb_res,
798 (mpp_res->start & INT_REGS_MASK) + MPP4_REGS_OFFS, 0x4);
799 res = &fb_res;
800 }
801
802 mpp4_base = devm_ioremap_resource(&pdev->dev, res);
803 if (IS_ERR(mpp4_base))
804 return PTR_ERR(mpp4_base);
805
806 res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
807 if (!res) {
808 dev_warn(&pdev->dev, "falling back to hardcoded PMU resource\n");
809 adjust_resource(&fb_res,
810 (mpp_res->start & INT_REGS_MASK) + PMU_REGS_OFFS, 0x8);
811 res = &fb_res;
812 }
813
814 pmu_base = devm_ioremap_resource(&pdev->dev, res);
815 if (IS_ERR(pmu_base))
816 return PTR_ERR(pmu_base);
817
818 gconfmap = syscon_regmap_lookup_by_compatible("marvell,dove-global-config");
819 if (IS_ERR(gconfmap)) {
820 void __iomem *gc_base;
821
822 dev_warn(&pdev->dev, "falling back to hardcoded global registers\n");
823 adjust_resource(&fb_res,
824 (mpp_res->start & INT_REGS_MASK) + GC_REGS_OFFS, 0x14);
825 gc_base = devm_ioremap_resource(&pdev->dev, &fb_res);
826 if (IS_ERR(gc_base))
827 return PTR_ERR(gc_base);
828 gconfmap = devm_regmap_init_mmio(&pdev->dev,
829 gc_base, &gc_regmap_config);
830 if (IS_ERR(gconfmap))
831 return PTR_ERR(gconfmap);
832 }
833
834 /* Warn on any missing DT resource */
835 if (fb_res.start)
836 dev_warn(&pdev->dev, FW_BUG "Missing pinctrl regs in DTB. Please update your firmware.\n");
837
838 return mvebu_pinctrl_probe(pdev);
839 }
840
dove_pinctrl_remove(struct platform_device * pdev)841 static int dove_pinctrl_remove(struct platform_device *pdev)
842 {
843 if (!IS_ERR(clk))
844 clk_disable_unprepare(clk);
845 return 0;
846 }
847
848 static struct platform_driver dove_pinctrl_driver = {
849 .driver = {
850 .name = "dove-pinctrl",
851 .of_match_table = dove_pinctrl_of_match,
852 },
853 .probe = dove_pinctrl_probe,
854 .remove = dove_pinctrl_remove,
855 };
856
857 module_platform_driver(dove_pinctrl_driver);
858
859 MODULE_AUTHOR("Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>");
860 MODULE_DESCRIPTION("Marvell Dove pinctrl driver");
861 MODULE_LICENSE("GPL v2");
862