include/linux/mfd/dbx500-prcmu.h

   1 /*
   2  * Copyright (C) ST Ericsson SA 2011
   3  *
   4  * License Terms: GNU General Public License v2
   5  *
   6  * STE Ux500 PRCMU API
   7  */
   8 #ifndef __MACH_PRCMU_H
   9 #define __MACH_PRCMU_H
  10
  11 #include <linux/interrupt.h>
  12 #include <linux/notifier.h>
  13 #include <linux/err.h>
  14
  15 /* PRCMU Wakeup defines */
  16 enum prcmu_wakeup_index {
  17         PRCMU_WAKEUP_INDEX_RTC,
  18         PRCMU_WAKEUP_INDEX_RTT0,
  19         PRCMU_WAKEUP_INDEX_RTT1,
  20         PRCMU_WAKEUP_INDEX_HSI0,
  21         PRCMU_WAKEUP_INDEX_HSI1,
  22         PRCMU_WAKEUP_INDEX_USB,
  23         PRCMU_WAKEUP_INDEX_ABB,
  24         PRCMU_WAKEUP_INDEX_ABB_FIFO,
  25         PRCMU_WAKEUP_INDEX_ARM,
  26         PRCMU_WAKEUP_INDEX_CD_IRQ,
  27         NUM_PRCMU_WAKEUP_INDICES
  28 };
  29 #define PRCMU_WAKEUP(_name) (BIT(PRCMU_WAKEUP_INDEX_##_name))
  30
  31 /* EPOD (power domain) IDs */
  32
  33 /*
  34  * DB8500 EPODs
  35  * - EPOD_ID_SVAMMDSP: power domain for SVA MMDSP
  36  * - EPOD_ID_SVAPIPE: power domain for SVA pipe
  37  * - EPOD_ID_SIAMMDSP: power domain for SIA MMDSP
  38  * - EPOD_ID_SIAPIPE: power domain for SIA pipe
  39  * - EPOD_ID_SGA: power domain for SGA
  40  * - EPOD_ID_B2R2_MCDE: power domain for B2R2 and MCDE
  41  * - EPOD_ID_ESRAM12: power domain for ESRAM 1 and 2
  42  * - EPOD_ID_ESRAM34: power domain for ESRAM 3 and 4
  43  * - NUM_EPOD_ID: number of power domains
  44  *
  45  * TODO: These should be prefixed.
  46  */
  47 #define EPOD_ID_SVAMMDSP        0
  48 #define EPOD_ID_SVAPIPE         1
  49 #define EPOD_ID_SIAMMDSP        2
  50 #define EPOD_ID_SIAPIPE         3
  51 #define EPOD_ID_SGA             4
  52 #define EPOD_ID_B2R2_MCDE       5
  53 #define EPOD_ID_ESRAM12         6
  54 #define EPOD_ID_ESRAM34         7
  55 #define NUM_EPOD_ID             8
  56
  57 /*
  58  * state definition for EPOD (power domain)
  59  * - EPOD_STATE_NO_CHANGE: The EPOD should remain unchanged
  60  * - EPOD_STATE_OFF: The EPOD is switched off
  61  * - EPOD_STATE_RAMRET: The EPOD is switched off with its internal RAM in
  62  *                         retention
  63  * - EPOD_STATE_ON_CLK_OFF: The EPOD is switched on, clock is still off
  64  * - EPOD_STATE_ON: Same as above, but with clock enabled
  65  */
  66 #define EPOD_STATE_NO_CHANGE    0x00
  67 #define EPOD_STATE_OFF          0x01
  68 #define EPOD_STATE_RAMRET       0x02
  69 #define EPOD_STATE_ON_CLK_OFF   0x03
  70 #define EPOD_STATE_ON           0x04
  71
  72 /*
  73  * CLKOUT sources
  74  */
  75 #define PRCMU_CLKSRC_CLK38M             0x00
  76 #define PRCMU_CLKSRC_ACLK               0x01
  77 #define PRCMU_CLKSRC_SYSCLK             0x02
  78 #define PRCMU_CLKSRC_LCDCLK             0x03
  79 #define PRCMU_CLKSRC_SDMMCCLK           0x04
  80 #define PRCMU_CLKSRC_TVCLK              0x05
  81 #define PRCMU_CLKSRC_TIMCLK             0x06
  82 #define PRCMU_CLKSRC_CLK009             0x07
  83 /* These are only valid for CLKOUT1: */
  84 #define PRCMU_CLKSRC_SIAMMDSPCLK        0x40
  85 #define PRCMU_CLKSRC_I2CCLK             0x41
  86 #define PRCMU_CLKSRC_MSP02CLK           0x42
  87 #define PRCMU_CLKSRC_ARMPLL_OBSCLK      0x43
  88 #define PRCMU_CLKSRC_HSIRXCLK           0x44
  89 #define PRCMU_CLKSRC_HSITXCLK           0x45
  90 #define PRCMU_CLKSRC_ARMCLKFIX          0x46
  91 #define PRCMU_CLKSRC_HDMICLK            0x47
  92
  93 /*
  94  * Clock identifiers.
  95  */
  96 enum prcmu_clock {
  97         PRCMU_SGACLK,
  98         PRCMU_UARTCLK,
  99         PRCMU_MSP02CLK,
 100         PRCMU_MSP1CLK,
 101         PRCMU_I2CCLK,
 102         PRCMU_SDMMCCLK,
 103         PRCMU_SPARE1CLK,
 104         PRCMU_SLIMCLK,
 105         PRCMU_PER1CLK,
 106         PRCMU_PER2CLK,
 107         PRCMU_PER3CLK,
 108         PRCMU_PER5CLK,
 109         PRCMU_PER6CLK,
 110         PRCMU_PER7CLK,
 111         PRCMU_LCDCLK,
 112         PRCMU_BMLCLK,
 113         PRCMU_HSITXCLK,
 114         PRCMU_HSIRXCLK,
 115         PRCMU_HDMICLK,
 116         PRCMU_APEATCLK,
 117         PRCMU_APETRACECLK,
 118         PRCMU_MCDECLK,
 119         PRCMU_IPI2CCLK,
 120         PRCMU_DSIALTCLK,
 121         PRCMU_DMACLK,
 122         PRCMU_B2R2CLK,
 123         PRCMU_TVCLK,
 124         PRCMU_SSPCLK,
 125         PRCMU_RNGCLK,
 126         PRCMU_UICCCLK,
 127         PRCMU_PWMCLK,
 128         PRCMU_IRDACLK,
 129         PRCMU_IRRCCLK,
 130         PRCMU_SIACLK,
 131         PRCMU_SVACLK,
 132         PRCMU_ACLK,
 133         PRCMU_NUM_REG_CLOCKS,
 134         PRCMU_SYSCLK = PRCMU_NUM_REG_CLOCKS,
 135         PRCMU_CDCLK,
 136         PRCMU_TIMCLK,
 137         PRCMU_PLLSOC0,
 138         PRCMU_PLLSOC1,
 139         PRCMU_ARMSS,
 140         PRCMU_PLLDDR,
 141         PRCMU_PLLDSI,
 142         PRCMU_DSI0CLK,
 143         PRCMU_DSI1CLK,
 144         PRCMU_DSI0ESCCLK,
 145         PRCMU_DSI1ESCCLK,
 146         PRCMU_DSI2ESCCLK,
 147 };
 148
 149 /**
 150  * enum ape_opp - APE OPP states definition
 151  * @APE_OPP_INIT:
 152  * @APE_NO_CHANGE: The APE operating point is unchanged
 153  * @APE_100_OPP: The new APE operating point is ape100opp
 154  * @APE_50_OPP: 50%
 155  * @APE_50_PARTLY_25_OPP: 50%, except some clocks at 25%.
 156  */
 157 enum ape_opp {
 158         APE_OPP_INIT = 0x00,
 159         APE_NO_CHANGE = 0x01,
 160         APE_100_OPP = 0x02,
 161         APE_50_OPP = 0x03,
 162         APE_50_PARTLY_25_OPP = 0xFF,
 163 };
 164
 165 /**
 166  * enum arm_opp - ARM OPP states definition
 167  * @ARM_OPP_INIT:
 168  * @ARM_NO_CHANGE: The ARM operating point is unchanged
 169  * @ARM_100_OPP: The new ARM operating point is arm100opp
 170  * @ARM_50_OPP: The new ARM operating point is arm50opp
 171  * @ARM_MAX_OPP: Operating point is "max" (more than 100)
 172  * @ARM_MAX_FREQ100OPP: Set max opp if available, else 100
 173  * @ARM_EXTCLK: The new ARM operating point is armExtClk
 174  */
 175 enum arm_opp {
 176         ARM_OPP_INIT = 0x00,
 177         ARM_NO_CHANGE = 0x01,
 178         ARM_100_OPP = 0x02,
 179         ARM_50_OPP = 0x03,
 180         ARM_MAX_OPP = 0x04,
 181         ARM_MAX_FREQ100OPP = 0x05,
 182         ARM_EXTCLK = 0x07
 183 };
 184
 185 /**
 186  * enum ddr_opp - DDR OPP states definition
 187  * @DDR_100_OPP: The new DDR operating point is ddr100opp
 188  * @DDR_50_OPP: The new DDR operating point is ddr50opp
 189  * @DDR_25_OPP: The new DDR operating point is ddr25opp
 190  */
 191 enum ddr_opp {
 192         DDR_100_OPP = 0x00,
 193         DDR_50_OPP = 0x01,
 194         DDR_25_OPP = 0x02,
 195 };
 196
 197 /*
 198  * Definitions for controlling ESRAM0 in deep sleep.
 199  */
 200 #define ESRAM0_DEEP_SLEEP_STATE_OFF 1
 201 #define ESRAM0_DEEP_SLEEP_STATE_RET 2
 202
 203 /**
 204  * enum ddr_pwrst - DDR power states definition
 205  * @DDR_PWR_STATE_UNCHANGED: SDRAM and DDR controller state is unchanged
 206  * @DDR_PWR_STATE_ON:
 207  * @DDR_PWR_STATE_OFFLOWLAT:
 208  * @DDR_PWR_STATE_OFFHIGHLAT:
 209  */
 210 enum ddr_pwrst {
 211         DDR_PWR_STATE_UNCHANGED     = 0x00,
 212         DDR_PWR_STATE_ON            = 0x01,
 213         DDR_PWR_STATE_OFFLOWLAT     = 0x02,
 214         DDR_PWR_STATE_OFFHIGHLAT    = 0x03
 215 };
 216
 217 #include <linux/mfd/db8500-prcmu.h>
 218
 219 #if defined(CONFIG_UX500_SOC_DB8500)
 220
 221 #include <mach/id.h>
 222
 223 static inline void __init prcmu_early_init(void)
 224 {
 225         return db8500_prcmu_early_init();
 226 }
 227
 228 static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
 229                 bool keep_ap_pll)
 230 {
 231         return db8500_prcmu_set_power_state(state, keep_ulp_clk,
 232                 keep_ap_pll);
 233 }
 234
 235 static inline u8 prcmu_get_power_state_result(void)
 236 {
 237         return db8500_prcmu_get_power_state_result();
 238 }
 239
 240 static inline int prcmu_gic_decouple(void)
 241 {
 242         return db8500_prcmu_gic_decouple();
 243 }
 244
 245 static inline int prcmu_gic_recouple(void)
 246 {
 247         return db8500_prcmu_gic_recouple();
 248 }
 249
 250 static inline bool prcmu_gic_pending_irq(void)
 251 {
 252         return db8500_prcmu_gic_pending_irq();
 253 }
 254
 255 static inline bool prcmu_is_cpu_in_wfi(int cpu)
 256 {
 257         return db8500_prcmu_is_cpu_in_wfi(cpu);
 258 }
 259
 260 static inline int prcmu_copy_gic_settings(void)
 261 {
 262         return db8500_prcmu_copy_gic_settings();
 263 }
 264
 265 static inline bool prcmu_pending_irq(void)
 266 {
 267         return db8500_prcmu_pending_irq();
 268 }
 269
 270 static inline int prcmu_set_epod(u16 epod_id, u8 epod_state)
 271 {
 272         return db8500_prcmu_set_epod(epod_id, epod_state);
 273 }
 274
 275 static inline void prcmu_enable_wakeups(u32 wakeups)
 276 {
 277         db8500_prcmu_enable_wakeups(wakeups);
 278 }
 279
 280 static inline void prcmu_disable_wakeups(void)
 281 {
 282         prcmu_enable_wakeups(0);
 283 }
 284
 285 static inline void prcmu_config_abb_event_readout(u32 abb_events)
 286 {
 287         db8500_prcmu_config_abb_event_readout(abb_events);
 288 }
 289
 290 static inline void prcmu_get_abb_event_buffer(void __iomem **buf)
 291 {
 292         db8500_prcmu_get_abb_event_buffer(buf);
 293 }
 294
 295 int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size);
 296 int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size);
 297 int prcmu_abb_write_masked(u8 slave, u8 reg, u8 *value, u8 *mask, u8 size);
 298
 299 int prcmu_config_clkout(u8 clkout, u8 source, u8 div);
 300
 301 static inline int prcmu_request_clock(u8 clock, bool enable)
 302 {
 303         return db8500_prcmu_request_clock(clock, enable);
 304 }
 305
 306 unsigned long prcmu_clock_rate(u8 clock);
 307 long prcmu_round_clock_rate(u8 clock, unsigned long rate);
 308 int prcmu_set_clock_rate(u8 clock, unsigned long rate);
 309
 310 static inline int prcmu_set_ddr_opp(u8 opp)
 311 {
 312         return db8500_prcmu_set_ddr_opp(opp);
 313 }
 314 static inline int prcmu_get_ddr_opp(void)
 315 {
 316         return db8500_prcmu_get_ddr_opp();
 317 }
 318
 319 static inline int prcmu_set_arm_opp(u8 opp)
 320 {
 321         return db8500_prcmu_set_arm_opp(opp);
 322 }
 323
 324 static inline int prcmu_get_arm_opp(void)
 325 {
 326         return db8500_prcmu_get_arm_opp();
 327 }
 328
 329 static inline int prcmu_set_ape_opp(u8 opp)
 330 {
 331         return db8500_prcmu_set_ape_opp(opp);
 332 }
 333
 334 static inline int prcmu_get_ape_opp(void)
 335 {
 336         return db8500_prcmu_get_ape_opp();
 337 }
 338
 339 static inline int prcmu_request_ape_opp_100_voltage(bool enable)
 340 {
 341         return db8500_prcmu_request_ape_opp_100_voltage(enable);
 342 }
 343
 344 static inline void prcmu_system_reset(u16 reset_code)
 345 {
 346         return db8500_prcmu_system_reset(reset_code);
 347 }
 348
 349 static inline u16 prcmu_get_reset_code(void)
 350 {
 351         return db8500_prcmu_get_reset_code();
 352 }
 353
 354 int prcmu_ac_wake_req(void);
 355 void prcmu_ac_sleep_req(void);
 356 static inline void prcmu_modem_reset(void)
 357 {
 358         return db8500_prcmu_modem_reset();
 359 }
 360
 361 static inline bool prcmu_is_ac_wake_requested(void)
 362 {
 363         return db8500_prcmu_is_ac_wake_requested();
 364 }
 365
 366 static inline int prcmu_set_display_clocks(void)
 367 {
 368         return db8500_prcmu_set_display_clocks();
 369 }
 370
 371 static inline int prcmu_disable_dsipll(void)
 372 {
 373         return db8500_prcmu_disable_dsipll();
 374 }
 375
 376 static inline int prcmu_enable_dsipll(void)
 377 {
 378         return db8500_prcmu_enable_dsipll();
 379 }
 380
 381 static inline int prcmu_config_esram0_deep_sleep(u8 state)
 382 {
 383         return db8500_prcmu_config_esram0_deep_sleep(state);
 384 }
 385
 386 static inline int prcmu_config_hotdog(u8 threshold)
 387 {
 388         return db8500_prcmu_config_hotdog(threshold);
 389 }
 390
 391 static inline int prcmu_config_hotmon(u8 low, u8 high)
 392 {
 393         return db8500_prcmu_config_hotmon(low, high);
 394 }
 395
 396 static inline int prcmu_start_temp_sense(u16 cycles32k)
 397 {
 398         return  db8500_prcmu_start_temp_sense(cycles32k);
 399 }
 400
 401 static inline int prcmu_stop_temp_sense(void)
 402 {
 403         return  db8500_prcmu_stop_temp_sense();
 404 }
 405
 406 static inline u32 prcmu_read(unsigned int reg)
 407 {
 408         return db8500_prcmu_read(reg);
 409 }
 410
 411 static inline void prcmu_write(unsigned int reg, u32 value)
 412 {
 413         db8500_prcmu_write(reg, value);
 414 }
 415
 416 static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value)
 417 {
 418         db8500_prcmu_write_masked(reg, mask, value);
 419 }
 420
 421 static inline int prcmu_enable_a9wdog(u8 id)
 422 {
 423         return db8500_prcmu_enable_a9wdog(id);
 424 }
 425
 426 static inline int prcmu_disable_a9wdog(u8 id)
 427 {
 428         return db8500_prcmu_disable_a9wdog(id);
 429 }
 430
 431 static inline int prcmu_kick_a9wdog(u8 id)
 432 {
 433         return db8500_prcmu_kick_a9wdog(id);
 434 }
 435
 436 static inline int prcmu_load_a9wdog(u8 id, u32 timeout)
 437 {
 438         return db8500_prcmu_load_a9wdog(id, timeout);
 439 }
 440
 441 static inline int prcmu_config_a9wdog(u8 num, bool sleep_auto_off)
 442 {
 443         return db8500_prcmu_config_a9wdog(num, sleep_auto_off);
 444 }
 445 #else
 446
 447 static inline void __init prcmu_early_init(void) {}
 448
 449 static inline int prcmu_set_power_state(u8 state, bool keep_ulp_clk,
 450         bool keep_ap_pll)
 451 {
 452         return 0;
 453 }
 454
 455 static inline int prcmu_set_epod(u16 epod_id, u8 epod_state)
 456 {
 457         return 0;
 458 }
 459
 460 static inline void prcmu_enable_wakeups(u32 wakeups) {}
 461
 462 static inline void prcmu_disable_wakeups(void) {}
 463
 464 static inline int prcmu_abb_read(u8 slave, u8 reg, u8 *value, u8 size)
 465 {
 466         return -ENOSYS;
 467 }
 468
 469 static inline int prcmu_abb_write(u8 slave, u8 reg, u8 *value, u8 size)
 470 {
 471         return -ENOSYS;
 472 }
 473
 474 static inline int prcmu_abb_write_masked(u8 slave, u8 reg, u8 *value, u8 *mask,
 475         u8 size)
 476 {
 477         return -ENOSYS;
 478 }
 479
 480 static inline int prcmu_config_clkout(u8 clkout, u8 source, u8 div)
 481 {
 482         return 0;
 483 }
 484
 485 static inline int prcmu_request_clock(u8 clock, bool enable)
 486 {
 487         return 0;
 488 }
 489
 490 static inline long prcmu_round_clock_rate(u8 clock, unsigned long rate)
 491 {
 492         return 0;
 493 }
 494
 495 static inline int prcmu_set_clock_rate(u8 clock, unsigned long rate)
 496 {
 497         return 0;
 498 }
 499
 500 static inline unsigned long prcmu_clock_rate(u8 clock)
 501 {
 502         return 0;
 503 }
 504
 505 static inline int prcmu_set_ape_opp(u8 opp)
 506 {
 507         return 0;
 508 }
 509
 510 static inline int prcmu_get_ape_opp(void)
 511 {
 512         return APE_100_OPP;
 513 }
 514
 515 static inline int prcmu_request_ape_opp_100_voltage(bool enable)
 516 {
 517         return 0;
 518 }
 519
 520 static inline int prcmu_set_arm_opp(u8 opp)
 521 {
 522         return 0;
 523 }
 524
 525 static inline int prcmu_get_arm_opp(void)
 526 {
 527         return ARM_100_OPP;
 528 }
 529
 530 static inline int prcmu_set_ddr_opp(u8 opp)
 531 {
 532         return 0;
 533 }
 534
 535 static inline int prcmu_get_ddr_opp(void)
 536 {
 537         return DDR_100_OPP;
 538 }
 539
 540 static inline void prcmu_system_reset(u16 reset_code) {}
 541
 542 static inline u16 prcmu_get_reset_code(void)
 543 {
 544         return 0;
 545 }
 546
 547 static inline int prcmu_ac_wake_req(void)
 548 {
 549         return 0;
 550 }
 551
 552 static inline void prcmu_ac_sleep_req(void) {}
 553
 554 static inline void prcmu_modem_reset(void) {}
 555
 556 static inline bool prcmu_is_ac_wake_requested(void)
 557 {
 558         return false;
 559 }
 560
 561 static inline int prcmu_set_display_clocks(void)
 562 {
 563         return 0;
 564 }
 565
 566 static inline int prcmu_disable_dsipll(void)
 567 {
 568         return 0;
 569 }
 570
 571 static inline int prcmu_enable_dsipll(void)
 572 {
 573         return 0;
 574 }
 575
 576 static inline int prcmu_config_esram0_deep_sleep(u8 state)
 577 {
 578         return 0;
 579 }
 580
 581 static inline void prcmu_config_abb_event_readout(u32 abb_events) {}
 582
 583 static inline void prcmu_get_abb_event_buffer(void __iomem **buf)
 584 {
 585         *buf = NULL;
 586 }
 587
 588 static inline int prcmu_config_hotdog(u8 threshold)
 589 {
 590         return 0;
 591 }
 592
 593 static inline int prcmu_config_hotmon(u8 low, u8 high)
 594 {
 595         return 0;
 596 }
 597
 598 static inline int prcmu_start_temp_sense(u16 cycles32k)
 599 {
 600         return 0;
 601 }
 602
 603 static inline int prcmu_stop_temp_sense(void)
 604 {
 605         return 0;
 606 }
 607
 608 static inline u32 prcmu_read(unsigned int reg)
 609 {
 610         return 0;
 611 }
 612
 613 static inline void prcmu_write(unsigned int reg, u32 value) {}
 614
 615 static inline void prcmu_write_masked(unsigned int reg, u32 mask, u32 value) {}
 616
 617 #endif
 618
 619 static inline void prcmu_set(unsigned int reg, u32 bits)
 620 {
 621         prcmu_write_masked(reg, bits, bits);
 622 }
 623
 624 static inline void prcmu_clear(unsigned int reg, u32 bits)
 625 {
 626         prcmu_write_masked(reg, bits, 0);
 627 }
 628
 629 #if defined(CONFIG_UX500_SOC_DB8500)
 630
 631 /**
 632  * prcmu_enable_spi2 - Enables pin muxing for SPI2 on OtherAlternateC1.
 633  */
 634 static inline void prcmu_enable_spi2(void)
 635 {
 636         if (cpu_is_u8500())
 637                 prcmu_set(DB8500_PRCM_GPIOCR, DB8500_PRCM_GPIOCR_SPI2_SELECT);
 638 }
 639
 640 /**
 641  * prcmu_disable_spi2 - Disables pin muxing for SPI2 on OtherAlternateC1.
 642  */
 643 static inline void prcmu_disable_spi2(void)
 644 {
 645         if (cpu_is_u8500())
 646                 prcmu_clear(DB8500_PRCM_GPIOCR, DB8500_PRCM_GPIOCR_SPI2_SELECT);
 647 }
 648
 649 /**
 650  * prcmu_enable_stm_mod_uart - Enables pin muxing for STMMOD
 651  * and UARTMOD on OtherAlternateC3.
 652  */
 653 static inline void prcmu_enable_stm_mod_uart(void)
 654 {
 655         if (cpu_is_u8500()) {
 656                 prcmu_set(DB8500_PRCM_GPIOCR,
 657                         (DB8500_PRCM_GPIOCR_DBG_STM_MOD_CMD1 |
 658                          DB8500_PRCM_GPIOCR_DBG_UARTMOD_CMD0));
 659         }
 660 }
 661
 662 /**
 663  * prcmu_disable_stm_mod_uart - Disables pin muxing for STMMOD
 664  * and UARTMOD on OtherAlternateC3.
 665  */
 666 static inline void prcmu_disable_stm_mod_uart(void)
 667 {
 668         if (cpu_is_u8500()) {
 669                 prcmu_clear(DB8500_PRCM_GPIOCR,
 670                         (DB8500_PRCM_GPIOCR_DBG_STM_MOD_CMD1 |
 671                          DB8500_PRCM_GPIOCR_DBG_UARTMOD_CMD0));
 672         }
 673 }
 674
 675 /**
 676  * prcmu_enable_stm_ape - Enables pin muxing for STM APE on OtherAlternateC1.
 677  */
 678 static inline void prcmu_enable_stm_ape(void)
 679 {
 680         if (cpu_is_u8500()) {
 681                 prcmu_set(DB8500_PRCM_GPIOCR,
 682                         DB8500_PRCM_GPIOCR_DBG_STM_APE_CMD);
 683         }
 684 }
 685
 686 /**
 687  * prcmu_disable_stm_ape - Disables pin muxing for STM APE on OtherAlternateC1.
 688  */
 689 static inline void prcmu_disable_stm_ape(void)
 690 {
 691         if (cpu_is_u8500()) {
 692                 prcmu_clear(DB8500_PRCM_GPIOCR,
 693                         DB8500_PRCM_GPIOCR_DBG_STM_APE_CMD);
 694         }
 695 }
 696
 697 #else
 698
 699 static inline void prcmu_enable_spi2(void) {}
 700 static inline void prcmu_disable_spi2(void) {}
 701 static inline void prcmu_enable_stm_mod_uart(void) {}
 702 static inline void prcmu_disable_stm_mod_uart(void) {}
 703 static inline void prcmu_enable_stm_ape(void) {}
 704 static inline void prcmu_disable_stm_ape(void) {}
 705
 706 #endif
 707
 708 /* PRCMU QoS APE OPP class */
 709 #define PRCMU_QOS_APE_OPP 1
 710 #define PRCMU_QOS_DDR_OPP 2
 711 #define PRCMU_QOS_ARM_OPP 3
 712 #define PRCMU_QOS_DEFAULT_VALUE -1
 713
 714 #ifdef CONFIG_DBX500_PRCMU_QOS_POWER
 715
 716 unsigned long prcmu_qos_get_cpufreq_opp_delay(void);
 717 void prcmu_qos_set_cpufreq_opp_delay(unsigned long);
 718 void prcmu_qos_force_opp(int, s32);
 719 int prcmu_qos_requirement(int pm_qos_class);
 720 int prcmu_qos_add_requirement(int pm_qos_class, char *name, s32 value);
 721 int prcmu_qos_update_requirement(int pm_qos_class, char *name, s32 new_value);
 722 void prcmu_qos_remove_requirement(int pm_qos_class, char *name);
 723 int prcmu_qos_add_notifier(int prcmu_qos_class,
 724                            struct notifier_block *notifier);
 725 int prcmu_qos_remove_notifier(int prcmu_qos_class,
 726                               struct notifier_block *notifier);
 727
 728 #else
 729
 730 static inline unsigned long prcmu_qos_get_cpufreq_opp_delay(void)
 731 {
 732         return 0;
 733 }
 734
 735 static inline void prcmu_qos_set_cpufreq_opp_delay(unsigned long n) {}
 736
 737 static inline void prcmu_qos_force_opp(int prcmu_qos_class, s32 i) {}
 738
 739 static inline int prcmu_qos_requirement(int prcmu_qos_class)
 740 {
 741         return 0;
 742 }
 743
 744 static inline int prcmu_qos_add_requirement(int prcmu_qos_class,
 745                                             char *name, s32 value)
 746 {
 747         return 0;
 748 }
 749
 750 static inline int prcmu_qos_update_requirement(int prcmu_qos_class,
 751                                                char *name, s32 new_value)
 752 {
 753         return 0;
 754 }
 755
 756 static inline void prcmu_qos_remove_requirement(int prcmu_qos_class, char *name)
 757 {
 758 }
 759
 760 static inline int prcmu_qos_add_notifier(int prcmu_qos_class,
 761                                          struct notifier_block *notifier)
 762 {
 763         return 0;
 764 }
 765 static inline int prcmu_qos_remove_notifier(int prcmu_qos_class,
 766                                             struct notifier_block *notifier)
 767 {
 768         return 0;
 769 }
 770
 771 #endif
 772
 773 #endif /* __MACH_PRCMU_H */