1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Marvell Dove pinctrl driver based on mvebu pinctrl core 4 * 5 * Author: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> 6 */ 7 8 #include <linux/err.h> 9 #include <linux/init.h> 10 #include <linux/io.h> 11 #include <linux/bitops.h> 12 #include <linux/platform_device.h> 13 #include <linux/clk.h> 14 #include <linux/of.h> 15 #include <linux/mfd/syscon.h> 16 #include <linux/pinctrl/pinctrl.h> 17 #include <linux/property.h> 18 #include <linux/regmap.h> 19 20 #include "pinctrl-mvebu.h" 21 22 /* Internal registers can be configured at any 1 MiB aligned address */ 23 #define INT_REGS_MASK ~(SZ_1M - 1) 24 #define MPP4_REGS_OFFS 0xd0440 25 #define PMU_REGS_OFFS 0xd802c 26 #define GC_REGS_OFFS 0xe802c 27 28 /* MPP Base registers */ 29 #define PMU_MPP_GENERAL_CTRL 0x10 30 #define AU0_AC97_SEL BIT(16) 31 32 /* MPP Control 4 register */ 33 #define SPI_GPIO_SEL BIT(5) 34 #define UART1_GPIO_SEL BIT(4) 35 #define AU1_GPIO_SEL BIT(3) 36 #define CAM_GPIO_SEL BIT(2) 37 #define SD1_GPIO_SEL BIT(1) 38 #define SD0_GPIO_SEL BIT(0) 39 40 /* PMU Signal Select registers */ 41 #define PMU_SIGNAL_SELECT_0 0x00 42 #define PMU_SIGNAL_SELECT_1 0x04 43 44 /* Global Config regmap registers */ 45 #define GLOBAL_CONFIG_1 0x00 46 #define TWSI_ENABLE_OPTION1 BIT(7) 47 #define GLOBAL_CONFIG_2 0x04 48 #define TWSI_ENABLE_OPTION2 BIT(20) 49 #define TWSI_ENABLE_OPTION3 BIT(21) 50 #define TWSI_OPTION3_GPIO BIT(22) 51 #define SSP_CTRL_STATUS_1 0x08 52 #define SSP_ON_AU1 BIT(0) 53 #define MPP_GENERAL_CONFIG 0x10 54 #define AU1_SPDIFO_GPIO_EN BIT(1) 55 #define NAND_GPIO_EN BIT(0) 56 57 #define CONFIG_PMU BIT(4) 58 59 static void __iomem *mpp4_base; 60 static void __iomem *pmu_base; 61 static struct regmap *gconfmap; 62 63 static int dove_pmu_mpp_ctrl_get(struct mvebu_mpp_ctrl_data *data, 64 unsigned pid, unsigned long *config) 65 { 66 unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; 67 unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; 68 unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL); 69 unsigned long func; 70 71 if ((pmu & BIT(pid)) == 0) 72 return mvebu_mmio_mpp_ctrl_get(data, pid, config); 73 74 func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off); 75 *config = (func >> shift) & MVEBU_MPP_MASK; 76 *config |= CONFIG_PMU; 77 78 return 0; 79 } 80 81 static int dove_pmu_mpp_ctrl_set(struct mvebu_mpp_ctrl_data *data, 82 unsigned pid, unsigned long config) 83 { 84 unsigned off = (pid / MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; 85 unsigned shift = (pid % MVEBU_MPPS_PER_REG) * MVEBU_MPP_BITS; 86 unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL); 87 unsigned long func; 88 89 if ((config & CONFIG_PMU) == 0) { 90 writel(pmu & ~BIT(pid), data->base + PMU_MPP_GENERAL_CTRL); 91 return mvebu_mmio_mpp_ctrl_set(data, pid, config); 92 } 93 94 writel(pmu | BIT(pid), data->base + PMU_MPP_GENERAL_CTRL); 95 func = readl(pmu_base + PMU_SIGNAL_SELECT_0 + off); 96 func &= ~(MVEBU_MPP_MASK << shift); 97 func |= (config & MVEBU_MPP_MASK) << shift; 98 writel(func, pmu_base + PMU_SIGNAL_SELECT_0 + off); 99 100 return 0; 101 } 102 103 static int dove_mpp4_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid, 104 unsigned long *config) 105 { 106 unsigned long mpp4 = readl(mpp4_base); 107 unsigned long mask; 108 109 switch (pid) { 110 case 24: /* mpp_camera */ 111 mask = CAM_GPIO_SEL; 112 break; 113 case 40: /* mpp_sdio0 */ 114 mask = SD0_GPIO_SEL; 115 break; 116 case 46: /* mpp_sdio1 */ 117 mask = SD1_GPIO_SEL; 118 break; 119 case 58: /* mpp_spi0 */ 120 mask = SPI_GPIO_SEL; 121 break; 122 case 62: /* mpp_uart1 */ 123 mask = UART1_GPIO_SEL; 124 break; 125 default: 126 return -EINVAL; 127 } 128 129 *config = ((mpp4 & mask) != 0); 130 131 return 0; 132 } 133 134 static int dove_mpp4_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid, 135 unsigned long config) 136 { 137 unsigned long mpp4 = readl(mpp4_base); 138 unsigned long mask; 139 140 switch (pid) { 141 case 24: /* mpp_camera */ 142 mask = CAM_GPIO_SEL; 143 break; 144 case 40: /* mpp_sdio0 */ 145 mask = SD0_GPIO_SEL; 146 break; 147 case 46: /* mpp_sdio1 */ 148 mask = SD1_GPIO_SEL; 149 break; 150 case 58: /* mpp_spi0 */ 151 mask = SPI_GPIO_SEL; 152 break; 153 case 62: /* mpp_uart1 */ 154 mask = UART1_GPIO_SEL; 155 break; 156 default: 157 return -EINVAL; 158 } 159 160 mpp4 &= ~mask; 161 if (config) 162 mpp4 |= mask; 163 164 writel(mpp4, mpp4_base); 165 166 return 0; 167 } 168 169 static int dove_nand_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid, 170 unsigned long *config) 171 { 172 unsigned int gmpp; 173 174 regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp); 175 *config = ((gmpp & NAND_GPIO_EN) != 0); 176 177 return 0; 178 } 179 180 static int dove_nand_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid, 181 unsigned long config) 182 { 183 regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG, 184 NAND_GPIO_EN, 185 (config) ? NAND_GPIO_EN : 0); 186 return 0; 187 } 188 189 static int dove_audio0_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid, 190 unsigned long *config) 191 { 192 unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL); 193 194 *config = ((pmu & AU0_AC97_SEL) != 0); 195 196 return 0; 197 } 198 199 static int dove_audio0_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid, 200 unsigned long config) 201 { 202 unsigned long pmu = readl(data->base + PMU_MPP_GENERAL_CTRL); 203 204 pmu &= ~AU0_AC97_SEL; 205 if (config) 206 pmu |= AU0_AC97_SEL; 207 writel(pmu, data->base + PMU_MPP_GENERAL_CTRL); 208 209 return 0; 210 } 211 212 static int dove_audio1_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid, 213 unsigned long *config) 214 { 215 unsigned int mpp4 = readl(mpp4_base); 216 unsigned int sspc1; 217 unsigned int gmpp; 218 unsigned int gcfg2; 219 220 regmap_read(gconfmap, SSP_CTRL_STATUS_1, &sspc1); 221 regmap_read(gconfmap, MPP_GENERAL_CONFIG, &gmpp); 222 regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2); 223 224 *config = 0; 225 if (mpp4 & AU1_GPIO_SEL) 226 *config |= BIT(3); 227 if (sspc1 & SSP_ON_AU1) 228 *config |= BIT(2); 229 if (gmpp & AU1_SPDIFO_GPIO_EN) 230 *config |= BIT(1); 231 if (gcfg2 & TWSI_OPTION3_GPIO) 232 *config |= BIT(0); 233 234 /* SSP/TWSI only if I2S1 not set*/ 235 if ((*config & BIT(3)) == 0) 236 *config &= ~(BIT(2) | BIT(0)); 237 /* TWSI only if SPDIFO not set*/ 238 if ((*config & BIT(1)) == 0) 239 *config &= ~BIT(0); 240 return 0; 241 } 242 243 static int dove_audio1_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid, 244 unsigned long config) 245 { 246 unsigned int mpp4 = readl(mpp4_base); 247 248 mpp4 &= ~AU1_GPIO_SEL; 249 if (config & BIT(3)) 250 mpp4 |= AU1_GPIO_SEL; 251 writel(mpp4, mpp4_base); 252 253 regmap_update_bits(gconfmap, SSP_CTRL_STATUS_1, 254 SSP_ON_AU1, 255 (config & BIT(2)) ? SSP_ON_AU1 : 0); 256 regmap_update_bits(gconfmap, MPP_GENERAL_CONFIG, 257 AU1_SPDIFO_GPIO_EN, 258 (config & BIT(1)) ? AU1_SPDIFO_GPIO_EN : 0); 259 regmap_update_bits(gconfmap, GLOBAL_CONFIG_2, 260 TWSI_OPTION3_GPIO, 261 (config & BIT(0)) ? TWSI_OPTION3_GPIO : 0); 262 263 return 0; 264 } 265 266 /* mpp[52:57] gpio pins depend heavily on current config; 267 * gpio_req does not try to mux in gpio capabilities to not 268 * break other functions. If you require all mpps as gpio 269 * enforce gpio setting by pinctrl mapping. 270 */ 271 static int dove_audio1_ctrl_gpio_req(struct mvebu_mpp_ctrl_data *data, 272 unsigned pid) 273 { 274 unsigned long config; 275 276 dove_audio1_ctrl_get(data, pid, &config); 277 278 switch (config) { 279 case 0x02: /* i2s1 : gpio[56:57] */ 280 case 0x0e: /* ssp : gpio[56:57] */ 281 if (pid >= 56) 282 return 0; 283 return -ENOTSUPP; 284 case 0x08: /* spdifo : gpio[52:55] */ 285 case 0x0b: /* twsi : gpio[52:55] */ 286 if (pid <= 55) 287 return 0; 288 return -ENOTSUPP; 289 case 0x0a: /* all gpio */ 290 return 0; 291 /* 0x00 : i2s1/spdifo : no gpio */ 292 /* 0x0c : ssp/spdifo : no gpio */ 293 /* 0x0f : ssp/twsi : no gpio */ 294 } 295 return -ENOTSUPP; 296 } 297 298 /* mpp[52:57] has gpio pins capable of in and out */ 299 static int dove_audio1_ctrl_gpio_dir(struct mvebu_mpp_ctrl_data *data, 300 unsigned pid, bool input) 301 { 302 if (pid < 52 || pid > 57) 303 return -ENOTSUPP; 304 return 0; 305 } 306 307 static int dove_twsi_ctrl_get(struct mvebu_mpp_ctrl_data *data, unsigned pid, 308 unsigned long *config) 309 { 310 unsigned int gcfg1; 311 unsigned int gcfg2; 312 313 regmap_read(gconfmap, GLOBAL_CONFIG_1, &gcfg1); 314 regmap_read(gconfmap, GLOBAL_CONFIG_2, &gcfg2); 315 316 *config = 0; 317 if (gcfg1 & TWSI_ENABLE_OPTION1) 318 *config = 1; 319 else if (gcfg2 & TWSI_ENABLE_OPTION2) 320 *config = 2; 321 else if (gcfg2 & TWSI_ENABLE_OPTION3) 322 *config = 3; 323 324 return 0; 325 } 326 327 static int dove_twsi_ctrl_set(struct mvebu_mpp_ctrl_data *data, unsigned pid, 328 unsigned long config) 329 { 330 unsigned int gcfg1 = 0; 331 unsigned int gcfg2 = 0; 332 333 switch (config) { 334 case 1: 335 gcfg1 = TWSI_ENABLE_OPTION1; 336 break; 337 case 2: 338 gcfg2 = TWSI_ENABLE_OPTION2; 339 break; 340 case 3: 341 gcfg2 = TWSI_ENABLE_OPTION3; 342 break; 343 } 344 345 regmap_update_bits(gconfmap, GLOBAL_CONFIG_1, 346 TWSI_ENABLE_OPTION1, 347 gcfg1); 348 regmap_update_bits(gconfmap, GLOBAL_CONFIG_2, 349 TWSI_ENABLE_OPTION2 | TWSI_ENABLE_OPTION3, 350 gcfg2); 351 352 return 0; 353 } 354 355 static const struct mvebu_mpp_ctrl dove_mpp_controls[] = { 356 MPP_FUNC_CTRL(0, 15, NULL, dove_pmu_mpp_ctrl), 357 MPP_FUNC_CTRL(16, 23, NULL, mvebu_mmio_mpp_ctrl), 358 MPP_FUNC_CTRL(24, 39, "mpp_camera", dove_mpp4_ctrl), 359 MPP_FUNC_CTRL(40, 45, "mpp_sdio0", dove_mpp4_ctrl), 360 MPP_FUNC_CTRL(46, 51, "mpp_sdio1", dove_mpp4_ctrl), 361 MPP_FUNC_GPIO_CTRL(52, 57, "mpp_audio1", dove_audio1_ctrl), 362 MPP_FUNC_CTRL(58, 61, "mpp_spi0", dove_mpp4_ctrl), 363 MPP_FUNC_CTRL(62, 63, "mpp_uart1", dove_mpp4_ctrl), 364 MPP_FUNC_CTRL(64, 71, "mpp_nand", dove_nand_ctrl), 365 MPP_FUNC_CTRL(72, 72, "audio0", dove_audio0_ctrl), 366 MPP_FUNC_CTRL(73, 73, "twsi", dove_twsi_ctrl), 367 }; 368 369 static struct mvebu_mpp_mode dove_mpp_modes[] = { 370 MPP_MODE(0, 371 MPP_FUNCTION(0x00, "gpio", NULL), 372 MPP_FUNCTION(0x02, "uart2", "rts"), 373 MPP_FUNCTION(0x03, "sdio0", "cd"), 374 MPP_FUNCTION(0x0f, "lcd0", "pwm"), 375 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 376 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 377 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 378 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 379 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 380 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 381 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 382 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 383 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 384 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 385 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 386 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 387 MPP_MODE(1, 388 MPP_FUNCTION(0x00, "gpio", NULL), 389 MPP_FUNCTION(0x02, "uart2", "cts"), 390 MPP_FUNCTION(0x03, "sdio0", "wp"), 391 MPP_FUNCTION(0x0f, "lcd1", "pwm"), 392 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 393 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 394 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 395 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 396 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 397 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 398 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 399 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 400 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 401 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 402 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 403 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 404 MPP_MODE(2, 405 MPP_FUNCTION(0x00, "gpio", NULL), 406 MPP_FUNCTION(0x01, "sata", "prsnt"), 407 MPP_FUNCTION(0x02, "uart2", "txd"), 408 MPP_FUNCTION(0x03, "sdio0", "buspwr"), 409 MPP_FUNCTION(0x04, "uart1", "rts"), 410 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 411 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 412 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 413 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 414 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 415 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 416 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 417 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 418 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 419 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 420 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 421 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 422 MPP_MODE(3, 423 MPP_FUNCTION(0x00, "gpio", NULL), 424 MPP_FUNCTION(0x01, "sata", "act"), 425 MPP_FUNCTION(0x02, "uart2", "rxd"), 426 MPP_FUNCTION(0x03, "sdio0", "ledctrl"), 427 MPP_FUNCTION(0x04, "uart1", "cts"), 428 MPP_FUNCTION(0x0f, "lcd-spi", "cs1"), 429 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 430 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 431 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 432 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 433 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 434 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 435 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 436 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 437 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 438 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 439 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 440 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 441 MPP_MODE(4, 442 MPP_FUNCTION(0x00, "gpio", NULL), 443 MPP_FUNCTION(0x02, "uart3", "rts"), 444 MPP_FUNCTION(0x03, "sdio1", "cd"), 445 MPP_FUNCTION(0x04, "spi1", "miso"), 446 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 447 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 448 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 449 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 450 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 451 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 452 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 453 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 454 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 455 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 456 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 457 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 458 MPP_MODE(5, 459 MPP_FUNCTION(0x00, "gpio", NULL), 460 MPP_FUNCTION(0x02, "uart3", "cts"), 461 MPP_FUNCTION(0x03, "sdio1", "wp"), 462 MPP_FUNCTION(0x04, "spi1", "cs"), 463 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 464 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 465 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 466 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 467 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 468 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 469 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 470 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 471 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 472 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 473 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 474 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 475 MPP_MODE(6, 476 MPP_FUNCTION(0x00, "gpio", NULL), 477 MPP_FUNCTION(0x02, "uart3", "txd"), 478 MPP_FUNCTION(0x03, "sdio1", "buspwr"), 479 MPP_FUNCTION(0x04, "spi1", "mosi"), 480 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 481 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 482 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 483 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 484 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 485 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 486 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 487 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 488 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 489 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 490 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 491 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 492 MPP_MODE(7, 493 MPP_FUNCTION(0x00, "gpio", NULL), 494 MPP_FUNCTION(0x02, "uart3", "rxd"), 495 MPP_FUNCTION(0x03, "sdio1", "ledctrl"), 496 MPP_FUNCTION(0x04, "spi1", "sck"), 497 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 498 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 499 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 500 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 501 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 502 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 503 MPP_FUNCTION(CONFIG_PMU | 0x8, "core-pwr-good", NULL), 504 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 505 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 506 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 507 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 508 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 509 MPP_MODE(8, 510 MPP_FUNCTION(0x00, "gpio", NULL), 511 MPP_FUNCTION(0x01, "watchdog", "rstout"), 512 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 513 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 514 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 515 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 516 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 517 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 518 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 519 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 520 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 521 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 522 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 523 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 524 MPP_MODE(9, 525 MPP_FUNCTION(0x00, "gpio", NULL), 526 MPP_FUNCTION(0x05, "pex1", "clkreq"), 527 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 528 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 529 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 530 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 531 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 532 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 533 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 534 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 535 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 536 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 537 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 538 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 539 MPP_MODE(10, 540 MPP_FUNCTION(0x00, "gpio", NULL), 541 MPP_FUNCTION(0x05, "ssp", "sclk"), 542 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 543 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 544 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 545 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 546 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 547 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 548 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 549 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 550 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 551 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 552 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 553 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 554 MPP_MODE(11, 555 MPP_FUNCTION(0x00, "gpio", NULL), 556 MPP_FUNCTION(0x01, "sata", "prsnt"), 557 MPP_FUNCTION(0x02, "sata-1", "act"), 558 MPP_FUNCTION(0x03, "sdio0", "ledctrl"), 559 MPP_FUNCTION(0x04, "sdio1", "ledctrl"), 560 MPP_FUNCTION(0x05, "pex0", "clkreq"), 561 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 562 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 563 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 564 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 565 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 566 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 567 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 568 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 569 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 570 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 571 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 572 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 573 MPP_MODE(12, 574 MPP_FUNCTION(0x00, "gpio", NULL), 575 MPP_FUNCTION(0x01, "sata", "act"), 576 MPP_FUNCTION(0x02, "uart2", "rts"), 577 MPP_FUNCTION(0x03, "audio0", "extclk"), 578 MPP_FUNCTION(0x04, "sdio1", "cd"), 579 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 580 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 581 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 582 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 583 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 584 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 585 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 586 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 587 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 588 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 589 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 590 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 591 MPP_MODE(13, 592 MPP_FUNCTION(0x00, "gpio", NULL), 593 MPP_FUNCTION(0x02, "uart2", "cts"), 594 MPP_FUNCTION(0x03, "audio1", "extclk"), 595 MPP_FUNCTION(0x04, "sdio1", "wp"), 596 MPP_FUNCTION(0x05, "ssp", "extclk"), 597 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 598 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 599 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 600 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 601 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 602 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 603 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 604 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 605 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 606 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 607 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 608 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 609 MPP_MODE(14, 610 MPP_FUNCTION(0x00, "gpio", NULL), 611 MPP_FUNCTION(0x02, "uart2", "txd"), 612 MPP_FUNCTION(0x04, "sdio1", "buspwr"), 613 MPP_FUNCTION(0x05, "ssp", "rxd"), 614 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 615 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 616 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 617 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 618 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 619 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 620 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 621 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 622 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 623 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 624 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 625 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 626 MPP_MODE(15, 627 MPP_FUNCTION(0x00, "gpio", NULL), 628 MPP_FUNCTION(0x02, "uart2", "rxd"), 629 MPP_FUNCTION(0x04, "sdio1", "ledctrl"), 630 MPP_FUNCTION(0x05, "ssp", "sfrm"), 631 MPP_FUNCTION(CONFIG_PMU | 0x0, "pmu-nc", NULL), 632 MPP_FUNCTION(CONFIG_PMU | 0x1, "pmu-low", NULL), 633 MPP_FUNCTION(CONFIG_PMU | 0x2, "pmu-high", NULL), 634 MPP_FUNCTION(CONFIG_PMU | 0x3, "pmic", "sdi"), 635 MPP_FUNCTION(CONFIG_PMU | 0x4, "cpu-pwr-down", NULL), 636 MPP_FUNCTION(CONFIG_PMU | 0x5, "standby-pwr-down", NULL), 637 MPP_FUNCTION(CONFIG_PMU | 0x8, "cpu-pwr-good", NULL), 638 MPP_FUNCTION(CONFIG_PMU | 0xa, "bat-fault", NULL), 639 MPP_FUNCTION(CONFIG_PMU | 0xb, "ext0-wakeup", NULL), 640 MPP_FUNCTION(CONFIG_PMU | 0xc, "ext1-wakeup", NULL), 641 MPP_FUNCTION(CONFIG_PMU | 0xd, "ext2-wakeup", NULL), 642 MPP_FUNCTION(CONFIG_PMU | 0xe, "pmu-blink", NULL)), 643 MPP_MODE(16, 644 MPP_FUNCTION(0x00, "gpio", NULL), 645 MPP_FUNCTION(0x02, "uart3", "rts"), 646 MPP_FUNCTION(0x03, "sdio0", "cd"), 647 MPP_FUNCTION(0x04, "lcd-spi", "cs1"), 648 MPP_FUNCTION(0x05, "ac97", "sdi1")), 649 MPP_MODE(17, 650 MPP_FUNCTION(0x00, "gpio", NULL), 651 MPP_FUNCTION(0x01, "ac97-1", "sysclko"), 652 MPP_FUNCTION(0x02, "uart3", "cts"), 653 MPP_FUNCTION(0x03, "sdio0", "wp"), 654 MPP_FUNCTION(0x04, "twsi", "sda"), 655 MPP_FUNCTION(0x05, "ac97", "sdi2")), 656 MPP_MODE(18, 657 MPP_FUNCTION(0x00, "gpio", NULL), 658 MPP_FUNCTION(0x02, "uart3", "txd"), 659 MPP_FUNCTION(0x03, "sdio0", "buspwr"), 660 MPP_FUNCTION(0x04, "lcd0", "pwm"), 661 MPP_FUNCTION(0x05, "ac97", "sdi3")), 662 MPP_MODE(19, 663 MPP_FUNCTION(0x00, "gpio", NULL), 664 MPP_FUNCTION(0x02, "uart3", "rxd"), 665 MPP_FUNCTION(0x03, "sdio0", "ledctrl"), 666 MPP_FUNCTION(0x04, "twsi", "sck")), 667 MPP_MODE(20, 668 MPP_FUNCTION(0x00, "gpio", NULL), 669 MPP_FUNCTION(0x01, "ac97", "sysclko"), 670 MPP_FUNCTION(0x02, "lcd-spi", "miso"), 671 MPP_FUNCTION(0x03, "sdio1", "cd"), 672 MPP_FUNCTION(0x05, "sdio0", "cd"), 673 MPP_FUNCTION(0x06, "spi1", "miso")), 674 MPP_MODE(21, 675 MPP_FUNCTION(0x00, "gpio", NULL), 676 MPP_FUNCTION(0x01, "uart1", "rts"), 677 MPP_FUNCTION(0x02, "lcd-spi", "cs0"), 678 MPP_FUNCTION(0x03, "sdio1", "wp"), 679 MPP_FUNCTION(0x04, "ssp", "sfrm"), 680 MPP_FUNCTION(0x05, "sdio0", "wp"), 681 MPP_FUNCTION(0x06, "spi1", "cs")), 682 MPP_MODE(22, 683 MPP_FUNCTION(0x00, "gpio", NULL), 684 MPP_FUNCTION(0x01, "uart1", "cts"), 685 MPP_FUNCTION(0x02, "lcd-spi", "mosi"), 686 MPP_FUNCTION(0x03, "sdio1", "buspwr"), 687 MPP_FUNCTION(0x04, "ssp", "txd"), 688 MPP_FUNCTION(0x05, "sdio0", "buspwr"), 689 MPP_FUNCTION(0x06, "spi1", "mosi")), 690 MPP_MODE(23, 691 MPP_FUNCTION(0x00, "gpio", NULL), 692 MPP_FUNCTION(0x02, "lcd-spi", "sck"), 693 MPP_FUNCTION(0x03, "sdio1", "ledctrl"), 694 MPP_FUNCTION(0x04, "ssp", "sclk"), 695 MPP_FUNCTION(0x05, "sdio0", "ledctrl"), 696 MPP_FUNCTION(0x06, "spi1", "sck")), 697 MPP_MODE(24, 698 MPP_FUNCTION(0x00, "camera", NULL), 699 MPP_FUNCTION(0x01, "gpio", NULL)), 700 MPP_MODE(40, 701 MPP_FUNCTION(0x00, "sdio0", NULL), 702 MPP_FUNCTION(0x01, "gpio", NULL)), 703 MPP_MODE(46, 704 MPP_FUNCTION(0x00, "sdio1", NULL), 705 MPP_FUNCTION(0x01, "gpio", NULL)), 706 MPP_MODE(52, 707 MPP_FUNCTION(0x00, "i2s1/spdifo", NULL), 708 MPP_FUNCTION(0x02, "i2s1", NULL), 709 MPP_FUNCTION(0x08, "spdifo", NULL), 710 MPP_FUNCTION(0x0a, "gpio", NULL), 711 MPP_FUNCTION(0x0b, "twsi", NULL), 712 MPP_FUNCTION(0x0c, "ssp/spdifo", NULL), 713 MPP_FUNCTION(0x0e, "ssp", NULL), 714 MPP_FUNCTION(0x0f, "ssp/twsi", NULL)), 715 MPP_MODE(58, 716 MPP_FUNCTION(0x00, "spi0", NULL), 717 MPP_FUNCTION(0x01, "gpio", NULL)), 718 MPP_MODE(62, 719 MPP_FUNCTION(0x00, "uart1", NULL), 720 MPP_FUNCTION(0x01, "gpio", NULL)), 721 MPP_MODE(64, 722 MPP_FUNCTION(0x00, "nand", NULL), 723 MPP_FUNCTION(0x01, "gpo", NULL)), 724 MPP_MODE(72, 725 MPP_FUNCTION(0x00, "i2s", NULL), 726 MPP_FUNCTION(0x01, "ac97", NULL)), 727 MPP_MODE(73, 728 MPP_FUNCTION(0x00, "twsi-none", NULL), 729 MPP_FUNCTION(0x01, "twsi-opt1", NULL), 730 MPP_FUNCTION(0x02, "twsi-opt2", NULL), 731 MPP_FUNCTION(0x03, "twsi-opt3", NULL)), 732 }; 733 734 static struct pinctrl_gpio_range dove_mpp_gpio_ranges[] = { 735 MPP_GPIO_RANGE(0, 0, 0, 32), 736 MPP_GPIO_RANGE(1, 32, 32, 32), 737 MPP_GPIO_RANGE(2, 64, 64, 8), 738 }; 739 740 static struct mvebu_pinctrl_soc_info dove_pinctrl_info = { 741 .controls = dove_mpp_controls, 742 .ncontrols = ARRAY_SIZE(dove_mpp_controls), 743 .modes = dove_mpp_modes, 744 .nmodes = ARRAY_SIZE(dove_mpp_modes), 745 .gpioranges = dove_mpp_gpio_ranges, 746 .ngpioranges = ARRAY_SIZE(dove_mpp_gpio_ranges), 747 .variant = 0, 748 }; 749 750 static struct clk *clk; 751 752 static const struct of_device_id dove_pinctrl_of_match[] = { 753 { .compatible = "marvell,dove-pinctrl", .data = &dove_pinctrl_info }, 754 { } 755 }; 756 757 static const struct regmap_config gc_regmap_config = { 758 .reg_bits = 32, 759 .val_bits = 32, 760 .reg_stride = 4, 761 .max_register = 5, 762 }; 763 764 static int dove_pinctrl_probe(struct platform_device *pdev) 765 { 766 struct resource *res, *mpp_res; 767 struct resource fb_res; 768 struct mvebu_mpp_ctrl_data *mpp_data; 769 void __iomem *base; 770 int i, ret; 771 772 pdev->dev.platform_data = (void *)device_get_match_data(&pdev->dev); 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 base = devm_platform_get_and_ioremap_resource(pdev, 0, &mpp_res); 786 if (IS_ERR(base)) { 787 ret = PTR_ERR(base); 788 goto err_probe; 789 } 790 791 mpp_data = devm_kcalloc(&pdev->dev, dove_pinctrl_info.ncontrols, 792 sizeof(*mpp_data), GFP_KERNEL); 793 if (!mpp_data) { 794 ret = -ENOMEM; 795 goto err_probe; 796 } 797 798 dove_pinctrl_info.control_data = mpp_data; 799 for (i = 0; i < ARRAY_SIZE(dove_mpp_controls); i++) 800 mpp_data[i].base = base; 801 802 /* prepare fallback resource */ 803 memcpy(&fb_res, mpp_res, sizeof(struct resource)); 804 fb_res.start = 0; 805 806 res = platform_get_resource(pdev, IORESOURCE_MEM, 1); 807 if (!res) { 808 dev_warn(&pdev->dev, "falling back to hardcoded MPP4 resource\n"); 809 adjust_resource(&fb_res, 810 (mpp_res->start & INT_REGS_MASK) + MPP4_REGS_OFFS, 0x4); 811 res = &fb_res; 812 } 813 814 mpp4_base = devm_ioremap_resource(&pdev->dev, res); 815 if (IS_ERR(mpp4_base)) { 816 ret = PTR_ERR(mpp4_base); 817 goto err_probe; 818 } 819 820 res = platform_get_resource(pdev, IORESOURCE_MEM, 2); 821 if (!res) { 822 dev_warn(&pdev->dev, "falling back to hardcoded PMU resource\n"); 823 adjust_resource(&fb_res, 824 (mpp_res->start & INT_REGS_MASK) + PMU_REGS_OFFS, 0x8); 825 res = &fb_res; 826 } 827 828 pmu_base = devm_ioremap_resource(&pdev->dev, res); 829 if (IS_ERR(pmu_base)) { 830 ret = PTR_ERR(pmu_base); 831 goto err_probe; 832 } 833 834 gconfmap = syscon_regmap_lookup_by_compatible("marvell,dove-global-config"); 835 if (IS_ERR(gconfmap)) { 836 void __iomem *gc_base; 837 838 dev_warn(&pdev->dev, "falling back to hardcoded global registers\n"); 839 adjust_resource(&fb_res, 840 (mpp_res->start & INT_REGS_MASK) + GC_REGS_OFFS, 0x14); 841 gc_base = devm_ioremap_resource(&pdev->dev, &fb_res); 842 if (IS_ERR(gc_base)) { 843 ret = PTR_ERR(gc_base); 844 goto err_probe; 845 } 846 847 gconfmap = devm_regmap_init_mmio(&pdev->dev, 848 gc_base, &gc_regmap_config); 849 if (IS_ERR(gconfmap)) { 850 ret = PTR_ERR(gconfmap); 851 goto err_probe; 852 } 853 } 854 855 /* Warn on any missing DT resource */ 856 if (fb_res.start) 857 dev_warn(&pdev->dev, FW_BUG "Missing pinctrl regs in DTB. Please update your firmware.\n"); 858 859 return mvebu_pinctrl_probe(pdev); 860 err_probe: 861 clk_disable_unprepare(clk); 862 return ret; 863 } 864 865 static struct platform_driver dove_pinctrl_driver = { 866 .driver = { 867 .name = "dove-pinctrl", 868 .suppress_bind_attrs = true, 869 .of_match_table = dove_pinctrl_of_match, 870 }, 871 .probe = dove_pinctrl_probe, 872 }; 873 builtin_platform_driver(dove_pinctrl_driver); 874