drivers/clk/clk-stm32mp1.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * Copyright (C) STMicroelectronics 2018 - All Rights Reserved
   4  * Author: Olivier Bideau <[email protected]> for STMicroelectronics.
   5  * Author: Gabriel Fernandez <[email protected]> for STMicroelectronics.
   6  */
   7
   8 #include <linux/clk.h>
   9 #include <linux/clk-provider.h>
  10 #include <linux/delay.h>
  11 #include <linux/err.h>
  12 #include <linux/io.h>
  13 #include <linux/of.h>
  14 #include <linux/of_address.h>
  15 #include <linux/slab.h>
  16 #include <linux/spinlock.h>
  17
  18 #include <dt-bindings/clock/stm32mp1-clks.h>
  19
  20 static DEFINE_SPINLOCK(rlock);
  21
  22 #define RCC_OCENSETR            0x0C
  23 #define RCC_HSICFGR             0x18
  24 #define RCC_RDLSICR             0x144
  25 #define RCC_PLL1CR              0x80
  26 #define RCC_PLL1CFGR1           0x84
  27 #define RCC_PLL1CFGR2           0x88
  28 #define RCC_PLL2CR              0x94
  29 #define RCC_PLL2CFGR1           0x98
  30 #define RCC_PLL2CFGR2           0x9C
  31 #define RCC_PLL3CR              0x880
  32 #define RCC_PLL3CFGR1           0x884
  33 #define RCC_PLL3CFGR2           0x888
  34 #define RCC_PLL4CR              0x894
  35 #define RCC_PLL4CFGR1           0x898
  36 #define RCC_PLL4CFGR2           0x89C
  37 #define RCC_APB1ENSETR          0xA00
  38 #define RCC_APB2ENSETR          0xA08
  39 #define RCC_APB3ENSETR          0xA10
  40 #define RCC_APB4ENSETR          0x200
  41 #define RCC_APB5ENSETR          0x208
  42 #define RCC_AHB2ENSETR          0xA18
  43 #define RCC_AHB3ENSETR          0xA20
  44 #define RCC_AHB4ENSETR          0xA28
  45 #define RCC_AHB5ENSETR          0x210
  46 #define RCC_AHB6ENSETR          0x218
  47 #define RCC_AHB6LPENSETR        0x318
  48 #define RCC_RCK12SELR           0x28
  49 #define RCC_RCK3SELR            0x820
  50 #define RCC_RCK4SELR            0x824
  51 #define RCC_MPCKSELR            0x20
  52 #define RCC_ASSCKSELR           0x24
  53 #define RCC_MSSCKSELR           0x48
  54 #define RCC_SPI6CKSELR          0xC4
  55 #define RCC_SDMMC12CKSELR       0x8F4
  56 #define RCC_SDMMC3CKSELR        0x8F8
  57 #define RCC_FMCCKSELR           0x904
  58 #define RCC_I2C46CKSELR         0xC0
  59 #define RCC_I2C12CKSELR         0x8C0
  60 #define RCC_I2C35CKSELR         0x8C4
  61 #define RCC_UART1CKSELR         0xC8
  62 #define RCC_QSPICKSELR          0x900
  63 #define RCC_ETHCKSELR           0x8FC
  64 #define RCC_RNG1CKSELR          0xCC
  65 #define RCC_RNG2CKSELR          0x920
  66 #define RCC_GPUCKSELR           0x938
  67 #define RCC_USBCKSELR           0x91C
  68 #define RCC_STGENCKSELR         0xD4
  69 #define RCC_SPDIFCKSELR         0x914
  70 #define RCC_SPI2S1CKSELR        0x8D8
  71 #define RCC_SPI2S23CKSELR       0x8DC
  72 #define RCC_SPI2S45CKSELR       0x8E0
  73 #define RCC_CECCKSELR           0x918
  74 #define RCC_LPTIM1CKSELR        0x934
  75 #define RCC_LPTIM23CKSELR       0x930
  76 #define RCC_LPTIM45CKSELR       0x92C
  77 #define RCC_UART24CKSELR        0x8E8
  78 #define RCC_UART35CKSELR        0x8EC
  79 #define RCC_UART6CKSELR         0x8E4
  80 #define RCC_UART78CKSELR        0x8F0
  81 #define RCC_FDCANCKSELR         0x90C
  82 #define RCC_SAI1CKSELR          0x8C8
  83 #define RCC_SAI2CKSELR          0x8CC
  84 #define RCC_SAI3CKSELR          0x8D0
  85 #define RCC_SAI4CKSELR          0x8D4
  86 #define RCC_ADCCKSELR           0x928
  87 #define RCC_MPCKDIVR            0x2C
  88 #define RCC_DSICKSELR           0x924
  89 #define RCC_CPERCKSELR          0xD0
  90 #define RCC_MCO1CFGR            0x800
  91 #define RCC_MCO2CFGR            0x804
  92 #define RCC_BDCR                0x140
  93 #define RCC_AXIDIVR             0x30
  94 #define RCC_MCUDIVR             0x830
  95 #define RCC_APB1DIVR            0x834
  96 #define RCC_APB2DIVR            0x838
  97 #define RCC_APB3DIVR            0x83C
  98 #define RCC_APB4DIVR            0x3C
  99 #define RCC_APB5DIVR            0x40
 100 #define RCC_TIMG1PRER           0x828
 101 #define RCC_TIMG2PRER           0x82C
 102 #define RCC_RTCDIVR             0x44
 103 #define RCC_DBGCFGR             0x80C
 104
 105 #define RCC_CLR 0x4
 106
 107 static const char * const ref12_parents[] = {
 108         "ck_hsi", "ck_hse"
 109 };
 110
 111 static const char * const ref3_parents[] = {
 112         "ck_hsi", "ck_hse", "ck_csi"
 113 };
 114
 115 static const char * const ref4_parents[] = {
 116         "ck_hsi", "ck_hse", "ck_csi"
 117 };
 118
 119 static const char * const cpu_src[] = {
 120         "ck_hsi", "ck_hse", "pll1_p"
 121 };
 122
 123 static const char * const axi_src[] = {
 124         "ck_hsi", "ck_hse", "pll2_p", "pll3_p"
 125 };
 126
 127 static const char * const per_src[] = {
 128         "ck_hsi", "ck_csi", "ck_hse"
 129 };
 130
 131 static const char * const mcu_src[] = {
 132         "ck_hsi", "ck_hse", "ck_csi", "pll3_p"
 133 };
 134
 135 static const char * const sdmmc12_src[] = {
 136         "ck_axi", "pll3_r", "pll4_p", "ck_hsi"
 137 };
 138
 139 static const char * const sdmmc3_src[] = {
 140         "ck_mcu", "pll3_r", "pll4_p", "ck_hsi"
 141 };
 142
 143 static const char * const fmc_src[] = {
 144         "ck_axi", "pll3_r", "pll4_p", "ck_per"
 145 };
 146
 147 static const char * const qspi_src[] = {
 148         "ck_axi", "pll3_r", "pll4_p", "ck_per"
 149 };
 150
 151 static const char * const eth_src[] = {
 152         "pll4_p", "pll3_q"
 153 };
 154
 155 static const char * const rng_src[] = {
 156         "ck_csi", "pll4_r", "ck_lse", "ck_lsi"
 157 };
 158
 159 static const char * const usbphy_src[] = {
 160         "ck_hse", "pll4_r", "clk-hse-div2"
 161 };
 162
 163 static const char * const usbo_src[] = {
 164         "pll4_r", "ck_usbo_48m"
 165 };
 166
 167 static const char * const stgen_src[] = {
 168         "ck_hsi", "ck_hse"
 169 };
 170
 171 static const char * const spdif_src[] = {
 172         "pll4_p", "pll3_q", "ck_hsi"
 173 };
 174
 175 static const char * const spi123_src[] = {
 176         "pll4_p", "pll3_q", "i2s_ckin", "ck_per", "pll3_r"
 177 };
 178
 179 static const char * const spi45_src[] = {
 180         "pclk2", "pll4_q", "ck_hsi", "ck_csi", "ck_hse"
 181 };
 182
 183 static const char * const spi6_src[] = {
 184         "pclk5", "pll4_q", "ck_hsi", "ck_csi", "ck_hse", "pll3_q"
 185 };
 186
 187 static const char * const cec_src[] = {
 188         "ck_lse", "ck_lsi", "ck_csi"
 189 };
 190
 191 static const char * const i2c12_src[] = {
 192         "pclk1", "pll4_r", "ck_hsi", "ck_csi"
 193 };
 194
 195 static const char * const i2c35_src[] = {
 196         "pclk1", "pll4_r", "ck_hsi", "ck_csi"
 197 };
 198
 199 static const char * const i2c46_src[] = {
 200         "pclk5", "pll3_q", "ck_hsi", "ck_csi"
 201 };
 202
 203 static const char * const lptim1_src[] = {
 204         "pclk1", "pll4_p", "pll3_q", "ck_lse", "ck_lsi", "ck_per"
 205 };
 206
 207 static const char * const lptim23_src[] = {
 208         "pclk3", "pll4_q", "ck_per", "ck_lse", "ck_lsi"
 209 };
 210
 211 static const char * const lptim45_src[] = {
 212         "pclk3", "pll4_p", "pll3_q", "ck_lse", "ck_lsi", "ck_per"
 213 };
 214
 215 static const char * const usart1_src[] = {
 216         "pclk5", "pll3_q", "ck_hsi", "ck_csi", "pll4_q", "ck_hse"
 217 };
 218
 219 const char * const usart234578_src[] = {
 220         "pclk1", "pll4_q", "ck_hsi", "ck_csi", "ck_hse"
 221 };
 222
 223 static const char * const usart6_src[] = {
 224         "pclk2", "pll4_q", "ck_hsi", "ck_csi", "ck_hse"
 225 };
 226
 227 static const char * const dfsdm_src[] = {
 228         "pclk2", "ck_mcu"
 229 };
 230
 231 static const char * const fdcan_src[] = {
 232         "ck_hse", "pll3_q", "pll4_q"
 233 };
 234
 235 static const char * const sai_src[] = {
 236         "pll4_q", "pll3_q", "i2s_ckin", "ck_per"
 237 };
 238
 239 static const char * const sai2_src[] = {
 240         "pll4_q", "pll3_q", "i2s_ckin", "ck_per", "spdif_ck_symb"
 241 };
 242
 243 static const char * const adc12_src[] = {
 244         "pll4_q", "ck_per"
 245 };
 246
 247 static const char * const dsi_src[] = {
 248         "ck_dsi_phy", "pll4_p"
 249 };
 250
 251 static const char * const rtc_src[] = {
 252         "off", "ck_lse", "ck_lsi", "ck_hse_rtc"
 253 };
 254
 255 static const char * const mco1_src[] = {
 256         "ck_hsi", "ck_hse", "ck_csi", "ck_lsi", "ck_lse"
 257 };
 258
 259 static const char * const mco2_src[] = {
 260         "ck_mpu", "ck_axi", "ck_mcu", "pll4_p", "ck_hse", "ck_hsi"
 261 };
 262
 263 static const char * const ck_trace_src[] = {
 264         "ck_axi"
 265 };
 266
 267 static const struct clk_div_table axi_div_table[] = {
 268         { 0, 1 }, { 1, 2 }, { 2, 3 }, { 3, 4 },
 269         { 4, 4 }, { 5, 4 }, { 6, 4 }, { 7, 4 },
 270         { 0 },
 271 };
 272
 273 static const struct clk_div_table mcu_div_table[] = {
 274         { 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 8 },
 275         { 4, 16 }, { 5, 32 }, { 6, 64 }, { 7, 128 },
 276         { 8, 512 }, { 9, 512 }, { 10, 512}, { 11, 512 },
 277         { 12, 512 }, { 13, 512 }, { 14, 512}, { 15, 512 },
 278         { 0 },
 279 };
 280
 281 static const struct clk_div_table apb_div_table[] = {
 282         { 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 8 },
 283         { 4, 16 }, { 5, 16 }, { 6, 16 }, { 7, 16 },
 284         { 0 },
 285 };
 286
 287 static const struct clk_div_table ck_trace_div_table[] = {
 288         { 0, 1 }, { 1, 2 }, { 2, 4 }, { 3, 8 },
 289         { 4, 16 }, { 5, 16 }, { 6, 16 }, { 7, 16 },
 290         { 0 },
 291 };
 292
 293 #define MAX_MUX_CLK 2
 294
 295 struct stm32_mmux {
 296         u8 nbr_clk;
 297         struct clk_hw *hws[MAX_MUX_CLK];
 298 };
 299
 300 struct stm32_clk_mmux {
 301         struct clk_mux mux;
 302         struct stm32_mmux *mmux;
 303 };
 304
 305 struct stm32_mgate {
 306         u8 nbr_clk;
 307         u32 flag;
 308 };
 309
 310 struct stm32_clk_mgate {
 311         struct clk_gate gate;
 312         struct stm32_mgate *mgate;
 313         u32 mask;
 314 };
 315
 316 struct clock_config {
 317         u32 id;
 318         const char *name;
 319         union {
 320                 const char *parent_name;
 321                 const char * const *parent_names;
 322         };
 323         int num_parents;
 324         unsigned long flags;
 325         void *cfg;
 326         struct clk_hw * (*func)(struct device *dev,
 327                                 struct clk_hw_onecell_data *clk_data,
 328                                 void __iomem *base, spinlock_t *lock,
 329                                 const struct clock_config *cfg);
 330 };
 331
 332 #define NO_ID ~0
 333
 334 struct gate_cfg {
 335         u32 reg_off;
 336         u8 bit_idx;
 337         u8 gate_flags;
 338 };
 339
 340 struct fixed_factor_cfg {
 341         unsigned int mult;
 342         unsigned int div;
 343 };
 344
 345 struct div_cfg {
 346         u32 reg_off;
 347         u8 shift;
 348         u8 width;
 349         u8 div_flags;
 350         const struct clk_div_table *table;
 351 };
 352
 353 struct mux_cfg {
 354         u32 reg_off;
 355         u8 shift;
 356         u8 width;
 357         u8 mux_flags;
 358         u32 *table;
 359 };
 360
 361 struct stm32_gate_cfg {
 362         struct gate_cfg         *gate;
 363         struct stm32_mgate      *mgate;
 364         const struct clk_ops    *ops;
 365 };
 366
 367 struct stm32_div_cfg {
 368         struct div_cfg          *div;
 369         const struct clk_ops    *ops;
 370 };
 371
 372 struct stm32_mux_cfg {
 373         struct mux_cfg          *mux;
 374         struct stm32_mmux       *mmux;
 375         const struct clk_ops    *ops;
 376 };
 377
 378 /* STM32 Composite clock */
 379 struct stm32_composite_cfg {
 380         const struct stm32_gate_cfg     *gate;
 381         const struct stm32_div_cfg      *div;
 382         const struct stm32_mux_cfg      *mux;
 383 };
 384
 385 static struct clk_hw *
 386 _clk_hw_register_gate(struct device *dev,
 387                       struct clk_hw_onecell_data *clk_data,
 388                       void __iomem *base, spinlock_t *lock,
 389                       const struct clock_config *cfg)
 390 {
 391         struct gate_cfg *gate_cfg = cfg->cfg;
 392
 393         return clk_hw_register_gate(dev,
 394                                     cfg->name,
 395                                     cfg->parent_name,
 396                                     cfg->flags,
 397                                     gate_cfg->reg_off + base,
 398                                     gate_cfg->bit_idx,
 399                                     gate_cfg->gate_flags,
 400                                     lock);
 401 }
 402
 403 static struct clk_hw *
 404 _clk_hw_register_fixed_factor(struct device *dev,
 405                               struct clk_hw_onecell_data *clk_data,
 406                               void __iomem *base, spinlock_t *lock,
 407                               const struct clock_config *cfg)
 408 {
 409         struct fixed_factor_cfg *ff_cfg = cfg->cfg;
 410
 411         return clk_hw_register_fixed_factor(dev, cfg->name, cfg->parent_name,
 412                                             cfg->flags, ff_cfg->mult,
 413                                             ff_cfg->div);
 414 }
 415
 416 static struct clk_hw *
 417 _clk_hw_register_divider_table(struct device *dev,
 418                                struct clk_hw_onecell_data *clk_data,
 419                                void __iomem *base, spinlock_t *lock,
 420                                const struct clock_config *cfg)
 421 {
 422         struct div_cfg *div_cfg = cfg->cfg;
 423
 424         return clk_hw_register_divider_table(dev,
 425                                              cfg->name,
 426                                              cfg->parent_name,
 427                                              cfg->flags,
 428                                              div_cfg->reg_off + base,
 429                                              div_cfg->shift,
 430                                              div_cfg->width,
 431                                              div_cfg->div_flags,
 432                                              div_cfg->table,
 433                                              lock);
 434 }
 435
 436 static struct clk_hw *
 437 _clk_hw_register_mux(struct device *dev,
 438                      struct clk_hw_onecell_data *clk_data,
 439                      void __iomem *base, spinlock_t *lock,
 440                      const struct clock_config *cfg)
 441 {
 442         struct mux_cfg *mux_cfg = cfg->cfg;
 443
 444         return clk_hw_register_mux(dev, cfg->name, cfg->parent_names,
 445                                    cfg->num_parents, cfg->flags,
 446                                    mux_cfg->reg_off + base, mux_cfg->shift,
 447                                    mux_cfg->width, mux_cfg->mux_flags, lock);
 448 }
 449
 450 /* MP1 Gate clock with set & clear registers */
 451
 452 static int mp1_gate_clk_enable(struct clk_hw *hw)
 453 {
 454         if (!clk_gate_ops.is_enabled(hw))
 455                 clk_gate_ops.enable(hw);
 456
 457         return 0;
 458 }
 459
 460 static void mp1_gate_clk_disable(struct clk_hw *hw)
 461 {
 462         struct clk_gate *gate = to_clk_gate(hw);
 463         unsigned long flags = 0;
 464
 465         if (clk_gate_ops.is_enabled(hw)) {
 466                 spin_lock_irqsave(gate->lock, flags);
 467                 writel_relaxed(BIT(gate->bit_idx), gate->reg + RCC_CLR);
 468                 spin_unlock_irqrestore(gate->lock, flags);
 469         }
 470 }
 471
 472 const struct clk_ops mp1_gate_clk_ops = {
 473         .enable         = mp1_gate_clk_enable,
 474         .disable        = mp1_gate_clk_disable,
 475         .is_enabled     = clk_gate_is_enabled,
 476 };
 477
 478 static struct clk_hw *_get_stm32_mux(void __iomem *base,
 479                                      const struct stm32_mux_cfg *cfg,
 480                                      spinlock_t *lock)
 481 {
 482         struct stm32_clk_mmux *mmux;
 483         struct clk_mux *mux;
 484         struct clk_hw *mux_hw;
 485
 486         if (cfg->mmux) {
 487                 mmux = kzalloc(sizeof(*mmux), GFP_KERNEL);
 488                 if (!mmux)
 489                         return ERR_PTR(-ENOMEM);
 490
 491                 mmux->mux.reg = cfg->mux->reg_off + base;
 492                 mmux->mux.shift = cfg->mux->shift;
 493                 mmux->mux.mask = (1 << cfg->mux->width) - 1;
 494                 mmux->mux.flags = cfg->mux->mux_flags;
 495                 mmux->mux.table = cfg->mux->table;
 496                 mmux->mux.lock = lock;
 497                 mmux->mmux = cfg->mmux;
 498                 mux_hw = &mmux->mux.hw;
 499                 cfg->mmux->hws[cfg->mmux->nbr_clk++] = mux_hw;
 500
 501         } else {
 502                 mux = kzalloc(sizeof(*mux), GFP_KERNEL);
 503                 if (!mux)
 504                         return ERR_PTR(-ENOMEM);
 505
 506                 mux->reg = cfg->mux->reg_off + base;
 507                 mux->shift = cfg->mux->shift;
 508                 mux->mask = (1 << cfg->mux->width) - 1;
 509                 mux->flags = cfg->mux->mux_flags;
 510                 mux->table = cfg->mux->table;
 511                 mux->lock = lock;
 512                 mux_hw = &mux->hw;
 513         }
 514
 515         return mux_hw;
 516 }
 517
 518 static struct clk_hw *_get_stm32_div(void __iomem *base,
 519                                      const struct stm32_div_cfg *cfg,
 520                                      spinlock_t *lock)
 521 {
 522         struct clk_divider *div;
 523
 524         div = kzalloc(sizeof(*div), GFP_KERNEL);
 525
 526         if (!div)
 527                 return ERR_PTR(-ENOMEM);
 528
 529         div->reg = cfg->div->reg_off + base;
 530         div->shift = cfg->div->shift;
 531         div->width = cfg->div->width;
 532         div->flags = cfg->div->div_flags;
 533         div->table = cfg->div->table;
 534         div->lock = lock;
 535
 536         return &div->hw;
 537 }
 538
 539 static struct clk_hw *
 540 _get_stm32_gate(void __iomem *base,
 541                 const struct stm32_gate_cfg *cfg, spinlock_t *lock)
 542 {
 543         struct stm32_clk_mgate *mgate;
 544         struct clk_gate *gate;
 545         struct clk_hw *gate_hw;
 546
 547         if (cfg->mgate) {
 548                 mgate = kzalloc(sizeof(*mgate), GFP_KERNEL);
 549                 if (!mgate)
 550                         return ERR_PTR(-ENOMEM);
 551
 552                 mgate->gate.reg = cfg->gate->reg_off + base;
 553                 mgate->gate.bit_idx = cfg->gate->bit_idx;
 554                 mgate->gate.flags = cfg->gate->gate_flags;
 555                 mgate->gate.lock = lock;
 556                 mgate->mask = BIT(cfg->mgate->nbr_clk++);
 557
 558                 mgate->mgate = cfg->mgate;
 559
 560                 gate_hw = &mgate->gate.hw;
 561
 562         } else {
 563                 gate = kzalloc(sizeof(*gate), GFP_KERNEL);
 564                 if (!gate)
 565                         return ERR_PTR(-ENOMEM);
 566
 567                 gate->reg = cfg->gate->reg_off + base;
 568                 gate->bit_idx = cfg->gate->bit_idx;
 569                 gate->flags = cfg->gate->gate_flags;
 570                 gate->lock = lock;
 571
 572                 gate_hw = &gate->hw;
 573         }
 574
 575         return gate_hw;
 576 }
 577
 578 static struct clk_hw *
 579 clk_stm32_register_gate_ops(struct device *dev,
 580                             const char *name,
 581                             const char *parent_name,
 582                             unsigned long flags,
 583                             void __iomem *base,
 584                             const struct stm32_gate_cfg *cfg,
 585                             spinlock_t *lock)
 586 {
 587         struct clk_init_data init = { NULL };
 588         struct clk_gate *gate;
 589         struct clk_hw *hw;
 590         int ret;
 591
 592         gate = kzalloc(sizeof(*gate), GFP_KERNEL);
 593         if (!gate)
 594                 return ERR_PTR(-ENOMEM);
 595
 596         init.name = name;
 597         init.parent_names = &parent_name;
 598         init.num_parents = 1;
 599         init.flags = flags;
 600
 601         init.ops = &clk_gate_ops;
 602
 603         if (cfg->ops)
 604                 init.ops = cfg->ops;
 605
 606         hw = _get_stm32_gate(base, cfg, lock);
 607         if (IS_ERR(hw))
 608                 return ERR_PTR(-ENOMEM);
 609
 610         hw->init = &init;
 611
 612         ret = clk_hw_register(dev, hw);
 613         if (ret) {
 614                 kfree(gate);
 615                 hw = ERR_PTR(ret);
 616         }
 617
 618         return hw;
 619 }
 620
 621 static struct clk_hw *
 622 clk_stm32_register_composite(struct device *dev,
 623                              const char *name, const char * const *parent_names,
 624                              int num_parents, void __iomem *base,
 625                              const struct stm32_composite_cfg *cfg,
 626                              unsigned long flags, spinlock_t *lock)
 627 {
 628         const struct clk_ops *mux_ops, *div_ops, *gate_ops;
 629         struct clk_hw *mux_hw, *div_hw, *gate_hw;
 630
 631         mux_hw = NULL;
 632         div_hw = NULL;
 633         gate_hw = NULL;
 634         mux_ops = NULL;
 635         div_ops = NULL;
 636         gate_ops = NULL;
 637
 638         if (cfg->mux) {
 639                 mux_hw = _get_stm32_mux(base, cfg->mux, lock);
 640
 641                 if (!IS_ERR(mux_hw)) {
 642                         mux_ops = &clk_mux_ops;
 643
 644                         if (cfg->mux->ops)
 645                                 mux_ops = cfg->mux->ops;
 646                 }
 647         }
 648
 649         if (cfg->div) {
 650                 div_hw = _get_stm32_div(base, cfg->div, lock);
 651
 652                 if (!IS_ERR(div_hw)) {
 653                         div_ops = &clk_divider_ops;
 654
 655                         if (cfg->div->ops)
 656                                 div_ops = cfg->div->ops;
 657                 }
 658         }
 659
 660         if (cfg->gate) {
 661                 gate_hw = _get_stm32_gate(base, cfg->gate, lock);
 662
 663                 if (!IS_ERR(gate_hw)) {
 664                         gate_ops = &clk_gate_ops;
 665
 666                         if (cfg->gate->ops)
 667                                 gate_ops = cfg->gate->ops;
 668                 }
 669         }
 670
 671         return clk_hw_register_composite(dev, name, parent_names, num_parents,
 672                                        mux_hw, mux_ops, div_hw, div_ops,
 673                                        gate_hw, gate_ops, flags);
 674 }
 675
 676 #define to_clk_mgate(_gate) container_of(_gate, struct stm32_clk_mgate, gate)
 677
 678 static int mp1_mgate_clk_enable(struct clk_hw *hw)
 679 {
 680         struct clk_gate *gate = to_clk_gate(hw);
 681         struct stm32_clk_mgate *clk_mgate = to_clk_mgate(gate);
 682
 683         clk_mgate->mgate->flag |= clk_mgate->mask;
 684
 685         mp1_gate_clk_enable(hw);
 686
 687         return  0;
 688 }
 689
 690 static void mp1_mgate_clk_disable(struct clk_hw *hw)
 691 {
 692         struct clk_gate *gate = to_clk_gate(hw);
 693         struct stm32_clk_mgate *clk_mgate = to_clk_mgate(gate);
 694
 695         clk_mgate->mgate->flag &= ~clk_mgate->mask;
 696
 697         if (clk_mgate->mgate->flag == 0)
 698                 mp1_gate_clk_disable(hw);
 699 }
 700
 701 const struct clk_ops mp1_mgate_clk_ops = {
 702         .enable         = mp1_mgate_clk_enable,
 703         .disable        = mp1_mgate_clk_disable,
 704         .is_enabled     = clk_gate_is_enabled,
 705
 706 };
 707
 708 #define to_clk_mmux(_mux) container_of(_mux, struct stm32_clk_mmux, mux)
 709
 710 static u8 clk_mmux_get_parent(struct clk_hw *hw)
 711 {
 712         return clk_mux_ops.get_parent(hw);
 713 }
 714
 715 static int clk_mmux_set_parent(struct clk_hw *hw, u8 index)
 716 {
 717         struct clk_mux *mux = to_clk_mux(hw);
 718         struct stm32_clk_mmux *clk_mmux = to_clk_mmux(mux);
 719         struct clk_hw *hwp;
 720         int ret, n;
 721
 722         ret = clk_mux_ops.set_parent(hw, index);
 723         if (ret)
 724                 return ret;
 725
 726         hwp = clk_hw_get_parent(hw);
 727
 728         for (n = 0; n < clk_mmux->mmux->nbr_clk; n++)
 729                 if (clk_mmux->mmux->hws[n] != hw)
 730                         clk_hw_reparent(clk_mmux->mmux->hws[n], hwp);
 731
 732         return 0;
 733 }
 734
 735 const struct clk_ops clk_mmux_ops = {
 736         .get_parent     = clk_mmux_get_parent,
 737         .set_parent     = clk_mmux_set_parent,
 738         .determine_rate = __clk_mux_determine_rate,
 739 };
 740
 741 /* STM32 PLL */
 742 struct stm32_pll_obj {
 743         /* lock pll enable/disable registers */
 744         spinlock_t *lock;
 745         void __iomem *reg;
 746         struct clk_hw hw;
 747 };
 748
 749 #define to_pll(_hw) container_of(_hw, struct stm32_pll_obj, hw)
 750
 751 #define PLL_ON          BIT(0)
 752 #define PLL_RDY         BIT(1)
 753 #define DIVN_MASK       0x1FF
 754 #define DIVM_MASK       0x3F
 755 #define DIVM_SHIFT      16
 756 #define DIVN_SHIFT      0
 757 #define FRAC_OFFSET     0xC
 758 #define FRAC_MASK       0x1FFF
 759 #define FRAC_SHIFT      3
 760 #define FRACLE          BIT(16)
 761
 762 static int __pll_is_enabled(struct clk_hw *hw)
 763 {
 764         struct stm32_pll_obj *clk_elem = to_pll(hw);
 765
 766         return readl_relaxed(clk_elem->reg) & PLL_ON;
 767 }
 768
 769 #define TIMEOUT 5
 770
 771 static int pll_enable(struct clk_hw *hw)
 772 {
 773         struct stm32_pll_obj *clk_elem = to_pll(hw);
 774         u32 reg;
 775         unsigned long flags = 0;
 776         unsigned int timeout = TIMEOUT;
 777         int bit_status = 0;
 778
 779         spin_lock_irqsave(clk_elem->lock, flags);
 780
 781         if (__pll_is_enabled(hw))
 782                 goto unlock;
 783
 784         reg = readl_relaxed(clk_elem->reg);
 785         reg |= PLL_ON;
 786         writel_relaxed(reg, clk_elem->reg);
 787
 788         /* We can't use readl_poll_timeout() because we can be blocked if
 789          * someone enables this clock before clocksource changes.
 790          * Only jiffies counter is available. Jiffies are incremented by
 791          * interruptions and enable op does not allow to be interrupted.
 792          */
 793         do {
 794                 bit_status = !(readl_relaxed(clk_elem->reg) & PLL_RDY);
 795
 796                 if (bit_status)
 797                         udelay(120);
 798
 799         } while (bit_status && --timeout);
 800
 801 unlock:
 802         spin_unlock_irqrestore(clk_elem->lock, flags);
 803
 804         return bit_status;
 805 }
 806
 807 static void pll_disable(struct clk_hw *hw)
 808 {
 809         struct stm32_pll_obj *clk_elem = to_pll(hw);
 810         u32 reg;
 811         unsigned long flags = 0;
 812
 813         spin_lock_irqsave(clk_elem->lock, flags);
 814
 815         reg = readl_relaxed(clk_elem->reg);
 816         reg &= ~PLL_ON;
 817         writel_relaxed(reg, clk_elem->reg);
 818
 819         spin_unlock_irqrestore(clk_elem->lock, flags);
 820 }
 821
 822 static u32 pll_frac_val(struct clk_hw *hw)
 823 {
 824         struct stm32_pll_obj *clk_elem = to_pll(hw);
 825         u32 reg, frac = 0;
 826
 827         reg = readl_relaxed(clk_elem->reg + FRAC_OFFSET);
 828         if (reg & FRACLE)
 829                 frac = (reg >> FRAC_SHIFT) & FRAC_MASK;
 830
 831         return frac;
 832 }
 833
 834 static unsigned long pll_recalc_rate(struct clk_hw *hw,
 835                                      unsigned long parent_rate)
 836 {
 837         struct stm32_pll_obj *clk_elem = to_pll(hw);
 838         u32 reg;
 839         u32 frac, divm, divn;
 840         u64 rate, rate_frac = 0;
 841
 842         reg = readl_relaxed(clk_elem->reg + 4);
 843
 844         divm = ((reg >> DIVM_SHIFT) & DIVM_MASK) + 1;
 845         divn = ((reg >> DIVN_SHIFT) & DIVN_MASK) + 1;
 846         rate = (u64)parent_rate * divn;
 847
 848         do_div(rate, divm);
 849
 850         frac = pll_frac_val(hw);
 851         if (frac) {
 852                 rate_frac = (u64)parent_rate * (u64)frac;
 853                 do_div(rate_frac, (divm * 8192));
 854         }
 855
 856         return rate + rate_frac;
 857 }
 858
 859 static int pll_is_enabled(struct clk_hw *hw)
 860 {
 861         struct stm32_pll_obj *clk_elem = to_pll(hw);
 862         unsigned long flags = 0;
 863         int ret;
 864
 865         spin_lock_irqsave(clk_elem->lock, flags);
 866         ret = __pll_is_enabled(hw);
 867         spin_unlock_irqrestore(clk_elem->lock, flags);
 868
 869         return ret;
 870 }
 871
 872 static const struct clk_ops pll_ops = {
 873         .enable         = pll_enable,
 874         .disable        = pll_disable,
 875         .recalc_rate    = pll_recalc_rate,
 876         .is_enabled     = pll_is_enabled,
 877 };
 878
 879 static struct clk_hw *clk_register_pll(struct device *dev, const char *name,
 880                                        const char *parent_name,
 881                                        void __iomem *reg,
 882                                        unsigned long flags,
 883                                        spinlock_t *lock)
 884 {
 885         struct stm32_pll_obj *element;
 886         struct clk_init_data init;
 887         struct clk_hw *hw;
 888         int err;
 889
 890         element = kzalloc(sizeof(*element), GFP_KERNEL);
 891         if (!element)
 892                 return ERR_PTR(-ENOMEM);
 893
 894         init.name = name;
 895         init.ops = &pll_ops;
 896         init.flags = flags;
 897         init.parent_names = &parent_name;
 898         init.num_parents = 1;
 899
 900         element->hw.init = &init;
 901         element->reg = reg;
 902         element->lock = lock;
 903
 904         hw = &element->hw;
 905         err = clk_hw_register(dev, hw);
 906
 907         if (err) {
 908                 kfree(element);
 909                 return ERR_PTR(err);
 910         }
 911
 912         return hw;
 913 }
 914
 915 /* Kernel Timer */
 916 struct timer_cker {
 917         /* lock the kernel output divider register */
 918         spinlock_t *lock;
 919         void __iomem *apbdiv;
 920         void __iomem *timpre;
 921         struct clk_hw hw;
 922 };
 923
 924 #define to_timer_cker(_hw) container_of(_hw, struct timer_cker, hw)
 925
 926 #define APB_DIV_MASK 0x07
 927 #define TIM_PRE_MASK 0x01
 928
 929 static unsigned long __bestmult(struct clk_hw *hw, unsigned long rate,
 930                                 unsigned long parent_rate)
 931 {
 932         struct timer_cker *tim_ker = to_timer_cker(hw);
 933         u32 prescaler;
 934         unsigned int mult = 0;
 935
 936         prescaler = readl_relaxed(tim_ker->apbdiv) & APB_DIV_MASK;
 937         if (prescaler < 2)
 938                 return 1;
 939
 940         mult = 2;
 941
 942         if (rate / parent_rate >= 4)
 943                 mult = 4;
 944
 945         return mult;
 946 }
 947
 948 static long timer_ker_round_rate(struct clk_hw *hw, unsigned long rate,
 949                                  unsigned long *parent_rate)
 950 {
 951         unsigned long factor = __bestmult(hw, rate, *parent_rate);
 952
 953         return *parent_rate * factor;
 954 }
 955
 956 static int timer_ker_set_rate(struct clk_hw *hw, unsigned long rate,
 957                               unsigned long parent_rate)
 958 {
 959         struct timer_cker *tim_ker = to_timer_cker(hw);
 960         unsigned long flags = 0;
 961         unsigned long factor = __bestmult(hw, rate, parent_rate);
 962         int ret = 0;
 963
 964         spin_lock_irqsave(tim_ker->lock, flags);
 965
 966         switch (factor) {
 967         case 1:
 968                 break;
 969         case 2:
 970                 writel_relaxed(0, tim_ker->timpre);
 971                 break;
 972         case 4:
 973                 writel_relaxed(1, tim_ker->timpre);
 974                 break;
 975         default:
 976                 ret = -EINVAL;
 977         }
 978         spin_unlock_irqrestore(tim_ker->lock, flags);
 979
 980         return ret;
 981 }
 982
 983 static unsigned long timer_ker_recalc_rate(struct clk_hw *hw,
 984                                            unsigned long parent_rate)
 985 {
 986         struct timer_cker *tim_ker = to_timer_cker(hw);
 987         u32 prescaler, timpre;
 988         u32 mul;
 989
 990         prescaler = readl_relaxed(tim_ker->apbdiv) & APB_DIV_MASK;
 991
 992         timpre = readl_relaxed(tim_ker->timpre) & TIM_PRE_MASK;
 993
 994         if (!prescaler)
 995                 return parent_rate;
 996
 997         mul = (timpre + 1) * 2;
 998
 999         return parent_rate * mul;
1000 }
1001
1002 static const struct clk_ops timer_ker_ops = {
1003         .recalc_rate    = timer_ker_recalc_rate,
1004         .round_rate     = timer_ker_round_rate,
1005         .set_rate       = timer_ker_set_rate,
1006
1007 };
1008
1009 static struct clk_hw *clk_register_cktim(struct device *dev, const char *name,
1010                                          const char *parent_name,
1011                                          unsigned long flags,
1012                                          void __iomem *apbdiv,
1013                                          void __iomem *timpre,
1014                                          spinlock_t *lock)
1015 {
1016         struct timer_cker *tim_ker;
1017         struct clk_init_data init;
1018         struct clk_hw *hw;
1019         int err;
1020
1021         tim_ker = kzalloc(sizeof(*tim_ker), GFP_KERNEL);
1022         if (!tim_ker)
1023                 return ERR_PTR(-ENOMEM);
1024
1025         init.name = name;
1026         init.ops = &timer_ker_ops;
1027         init.flags = flags;
1028         init.parent_names = &parent_name;
1029         init.num_parents = 1;
1030
1031         tim_ker->hw.init = &init;
1032         tim_ker->lock = lock;
1033         tim_ker->apbdiv = apbdiv;
1034         tim_ker->timpre = timpre;
1035
1036         hw = &tim_ker->hw;
1037         err = clk_hw_register(dev, hw);
1038
1039         if (err) {
1040                 kfree(tim_ker);
1041                 return ERR_PTR(err);
1042         }
1043
1044         return hw;
1045 }
1046
1047 struct stm32_pll_cfg {
1048         u32 offset;
1049 };
1050
1051 struct clk_hw *_clk_register_pll(struct device *dev,
1052                                  struct clk_hw_onecell_data *clk_data,
1053                                  void __iomem *base, spinlock_t *lock,
1054                                  const struct clock_config *cfg)
1055 {
1056         struct stm32_pll_cfg *stm_pll_cfg = cfg->cfg;
1057
1058         return clk_register_pll(dev, cfg->name, cfg->parent_name,
1059                                 base + stm_pll_cfg->offset, cfg->flags, lock);
1060 }
1061
1062 struct stm32_cktim_cfg {
1063         u32 offset_apbdiv;
1064         u32 offset_timpre;
1065 };
1066
1067 static struct clk_hw *_clk_register_cktim(struct device *dev,
1068                                           struct clk_hw_onecell_data *clk_data,
1069                                           void __iomem *base, spinlock_t *lock,
1070                                           const struct clock_config *cfg)
1071 {
1072         struct stm32_cktim_cfg *cktim_cfg = cfg->cfg;
1073
1074         return clk_register_cktim(dev, cfg->name, cfg->parent_name, cfg->flags,
1075                                   cktim_cfg->offset_apbdiv + base,
1076                                   cktim_cfg->offset_timpre + base, lock);
1077 }
1078
1079 static struct clk_hw *
1080 _clk_stm32_register_gate(struct device *dev,
1081                          struct clk_hw_onecell_data *clk_data,
1082                          void __iomem *base, spinlock_t *lock,
1083                          const struct clock_config *cfg)
1084 {
1085         return clk_stm32_register_gate_ops(dev,
1086                                     cfg->name,
1087                                     cfg->parent_name,
1088                                     cfg->flags,
1089                                     base,
1090                                     cfg->cfg,
1091                                     lock);
1092 }
1093
1094 static struct clk_hw *
1095 _clk_stm32_register_composite(struct device *dev,
1096                               struct clk_hw_onecell_data *clk_data,
1097                               void __iomem *base, spinlock_t *lock,
1098                               const struct clock_config *cfg)
1099 {
1100         return clk_stm32_register_composite(dev, cfg->name, cfg->parent_names,
1101                                             cfg->num_parents, base, cfg->cfg,
1102                                             cfg->flags, lock);
1103 }
1104
1105 #define GATE(_id, _name, _parent, _flags, _offset, _bit_idx, _gate_flags)\
1106 {\
1107         .id             = _id,\
1108         .name           = _name,\
1109         .parent_name    = _parent,\
1110         .flags          = _flags,\
1111         .cfg            =  &(struct gate_cfg) {\
1112                 .reg_off        = _offset,\
1113                 .bit_idx        = _bit_idx,\
1114                 .gate_flags     = _gate_flags,\
1115         },\
1116         .func           = _clk_hw_register_gate,\
1117 }
1118
1119 #define FIXED_FACTOR(_id, _name, _parent, _flags, _mult, _div)\
1120 {\
1121         .id             = _id,\
1122         .name           = _name,\
1123         .parent_name    = _parent,\
1124         .flags          = _flags,\
1125         .cfg            =  &(struct fixed_factor_cfg) {\
1126                 .mult = _mult,\
1127                 .div = _div,\
1128         },\
1129         .func           = _clk_hw_register_fixed_factor,\
1130 }
1131
1132 #define DIV_TABLE(_id, _name, _parent, _flags, _offset, _shift, _width,\
1133                   _div_flags, _div_table)\
1134 {\
1135         .id             = _id,\
1136         .name           = _name,\
1137         .parent_name    = _parent,\
1138         .flags          = _flags,\
1139         .cfg            =  &(struct div_cfg) {\
1140                 .reg_off        = _offset,\
1141                 .shift          = _shift,\
1142                 .width          = _width,\
1143                 .div_flags      = _div_flags,\
1144                 .table          = _div_table,\
1145         },\
1146         .func           = _clk_hw_register_divider_table,\
1147 }
1148
1149 #define DIV(_id, _name, _parent, _flags, _offset, _shift, _width, _div_flags)\
1150         DIV_TABLE(_id, _name, _parent, _flags, _offset, _shift, _width,\
1151                   _div_flags, NULL)
1152
1153 #define MUX(_id, _name, _parents, _flags, _offset, _shift, _width, _mux_flags)\
1154 {\
1155         .id             = _id,\
1156         .name           = _name,\
1157         .parent_names   = _parents,\
1158         .num_parents    = ARRAY_SIZE(_parents),\
1159         .flags          = _flags,\
1160         .cfg            =  &(struct mux_cfg) {\
1161                 .reg_off        = _offset,\
1162                 .shift          = _shift,\
1163                 .width          = _width,\
1164                 .mux_flags      = _mux_flags,\
1165         },\
1166         .func           = _clk_hw_register_mux,\
1167 }
1168
1169 #define PLL(_id, _name, _parent, _flags, _offset)\
1170 {\
1171         .id             = _id,\
1172         .name           = _name,\
1173         .parent_name    = _parent,\
1174         .flags          = _flags,\
1175         .cfg            =  &(struct stm32_pll_cfg) {\
1176                 .offset = _offset,\
1177         },\
1178         .func           = _clk_register_pll,\
1179 }
1180
1181 #define STM32_CKTIM(_name, _parent, _flags, _offset_apbdiv, _offset_timpre)\
1182 {\
1183         .id             = NO_ID,\
1184         .name           = _name,\
1185         .parent_name    = _parent,\
1186         .flags          = _flags,\
1187         .cfg            =  &(struct stm32_cktim_cfg) {\
1188                 .offset_apbdiv = _offset_apbdiv,\
1189                 .offset_timpre = _offset_timpre,\
1190         },\
1191         .func           = _clk_register_cktim,\
1192 }
1193
1194 #define STM32_TIM(_id, _name, _parent, _offset_set, _bit_idx)\
1195                   GATE_MP1(_id, _name, _parent, CLK_SET_RATE_PARENT,\
1196                            _offset_set, _bit_idx, 0)
1197
1198 /* STM32 GATE */
1199 #define STM32_GATE(_id, _name, _parent, _flags, _gate)\
1200 {\
1201         .id             = _id,\
1202         .name           = _name,\
1203         .parent_name    = _parent,\
1204         .flags          = _flags,\
1205         .cfg            = (struct stm32_gate_cfg *) {_gate},\
1206         .func           = _clk_stm32_register_gate,\
1207 }
1208
1209 #define _STM32_GATE(_gate_offset, _gate_bit_idx, _gate_flags, _mgate, _ops)\
1210         (&(struct stm32_gate_cfg) {\
1211                 &(struct gate_cfg) {\
1212                         .reg_off        = _gate_offset,\
1213                         .bit_idx        = _gate_bit_idx,\
1214                         .gate_flags     = _gate_flags,\
1215                 },\
1216                 .mgate          = _mgate,\
1217                 .ops            = _ops,\
1218         })
1219
1220 #define _STM32_MGATE(_mgate)\
1221         (&per_gate_cfg[_mgate])
1222
1223 #define _GATE(_gate_offset, _gate_bit_idx, _gate_flags)\
1224         _STM32_GATE(_gate_offset, _gate_bit_idx, _gate_flags,\
1225                     NULL, NULL)\
1226
1227 #define _GATE_MP1(_gate_offset, _gate_bit_idx, _gate_flags)\
1228         _STM32_GATE(_gate_offset, _gate_bit_idx, _gate_flags,\
1229                     NULL, &mp1_gate_clk_ops)\
1230
1231 #define _MGATE_MP1(_mgate)\
1232         .gate = &per_gate_cfg[_mgate]
1233
1234 #define GATE_MP1(_id, _name, _parent, _flags, _offset, _bit_idx, _gate_flags)\
1235         STM32_GATE(_id, _name, _parent, _flags,\
1236                    _GATE_MP1(_offset, _bit_idx, _gate_flags))
1237
1238 #define MGATE_MP1(_id, _name, _parent, _flags, _mgate)\
1239         STM32_GATE(_id, _name, _parent, _flags,\
1240                    _STM32_MGATE(_mgate))
1241
1242 #define _STM32_DIV(_div_offset, _div_shift, _div_width,\
1243                    _div_flags, _div_table, _ops)\
1244         .div = &(struct stm32_div_cfg) {\
1245                 &(struct div_cfg) {\
1246                         .reg_off        = _div_offset,\
1247                         .shift          = _div_shift,\
1248                         .width          = _div_width,\
1249                         .div_flags      = _div_flags,\
1250                         .table          = _div_table,\
1251                 },\
1252                 .ops            = _ops,\
1253         }
1254
1255 #define _DIV(_div_offset, _div_shift, _div_width, _div_flags, _div_table)\
1256         _STM32_DIV(_div_offset, _div_shift, _div_width,\
1257                    _div_flags, _div_table, NULL)\
1258
1259 #define _STM32_MUX(_offset, _shift, _width, _mux_flags, _mmux, _ops)\
1260         .mux = &(struct stm32_mux_cfg) {\
1261                 &(struct mux_cfg) {\
1262                         .reg_off        = _offset,\
1263                         .shift          = _shift,\
1264                         .width          = _width,\
1265                         .mux_flags      = _mux_flags,\
1266                         .table          = NULL,\
1267                 },\
1268                 .mmux           = _mmux,\
1269                 .ops            = _ops,\
1270         }
1271
1272 #define _MUX(_offset, _shift, _width, _mux_flags)\
1273         _STM32_MUX(_offset, _shift, _width, _mux_flags, NULL, NULL)\
1274
1275 #define _MMUX(_mmux) .mux = &ker_mux_cfg[_mmux]
1276
1277 #define PARENT(_parent) ((const char *[]) { _parent})
1278
1279 #define _NO_MUX .mux = NULL
1280 #define _NO_DIV .div = NULL
1281 #define _NO_GATE .gate = NULL
1282
1283 #define COMPOSITE(_id, _name, _parents, _flags, _gate, _mux, _div)\
1284 {\
1285         .id             = _id,\
1286         .name           = _name,\
1287         .parent_names   = _parents,\
1288         .num_parents    = ARRAY_SIZE(_parents),\
1289         .flags          = _flags,\
1290         .cfg            = &(struct stm32_composite_cfg) {\
1291                 _gate,\
1292                 _mux,\
1293                 _div,\
1294         },\
1295         .func           = _clk_stm32_register_composite,\
1296 }
1297
1298 #define PCLK(_id, _name, _parent, _flags, _mgate)\
1299         MGATE_MP1(_id, _name, _parent, _flags, _mgate)
1300
1301 #define KCLK(_id, _name, _parents, _flags, _mgate, _mmux)\
1302              COMPOSITE(_id, _name, _parents, CLK_OPS_PARENT_ENABLE | _flags,\
1303                   _MGATE_MP1(_mgate),\
1304                   _MMUX(_mmux),\
1305                   _NO_DIV)
1306
1307 enum {
1308         G_SAI1,
1309         G_SAI2,
1310         G_SAI3,
1311         G_SAI4,
1312         G_SPI1,
1313         G_SPI2,
1314         G_SPI3,
1315         G_SPI4,
1316         G_SPI5,
1317         G_SPI6,
1318         G_SPDIF,
1319         G_I2C1,
1320         G_I2C2,
1321         G_I2C3,
1322         G_I2C4,
1323         G_I2C5,
1324         G_I2C6,
1325         G_USART2,
1326         G_UART4,
1327         G_USART3,
1328         G_UART5,
1329         G_USART1,
1330         G_USART6,
1331         G_UART7,
1332         G_UART8,
1333         G_LPTIM1,
1334         G_LPTIM2,
1335         G_LPTIM3,
1336         G_LPTIM4,
1337         G_LPTIM5,
1338         G_LTDC,
1339         G_DSI,
1340         G_QSPI,
1341         G_FMC,
1342         G_SDMMC1,
1343         G_SDMMC2,
1344         G_SDMMC3,
1345         G_USBO,
1346         G_USBPHY,
1347         G_RNG1,
1348         G_RNG2,
1349         G_FDCAN,
1350         G_DAC12,
1351         G_CEC,
1352         G_ADC12,
1353         G_GPU,
1354         G_STGEN,
1355         G_DFSDM,
1356         G_ADFSDM,
1357         G_TIM2,
1358         G_TIM3,
1359         G_TIM4,
1360         G_TIM5,
1361         G_TIM6,
1362         G_TIM7,
1363         G_TIM12,
1364         G_TIM13,
1365         G_TIM14,
1366         G_MDIO,
1367         G_TIM1,
1368         G_TIM8,
1369         G_TIM15,
1370         G_TIM16,
1371         G_TIM17,
1372         G_SYSCFG,
1373         G_VREF,
1374         G_TMPSENS,
1375         G_PMBCTRL,
1376         G_HDP,
1377         G_IWDG2,
1378         G_STGENRO,
1379         G_DMA1,
1380         G_DMA2,
1381         G_DMAMUX,
1382         G_DCMI,
1383         G_CRYP2,
1384         G_HASH2,
1385         G_CRC2,
1386         G_HSEM,
1387         G_IPCC,
1388         G_GPIOA,
1389         G_GPIOB,
1390         G_GPIOC,
1391         G_GPIOD,
1392         G_GPIOE,
1393         G_GPIOF,
1394         G_GPIOG,
1395         G_GPIOH,
1396         G_GPIOI,
1397         G_GPIOJ,
1398         G_GPIOK,
1399         G_MDMA,
1400         G_ETHCK,
1401         G_ETHTX,
1402         G_ETHRX,
1403         G_ETHMAC,
1404         G_CRC1,
1405         G_USBH,
1406         G_ETHSTP,
1407         G_RTCAPB,
1408         G_TZC,
1409         G_TZPC,
1410         G_IWDG1,
1411         G_BSEC,
1412         G_GPIOZ,
1413         G_CRYP1,
1414         G_HASH1,
1415         G_BKPSRAM,
1416
1417         G_LAST
1418 };
1419
1420 struct stm32_mgate mp1_mgate[G_LAST];
1421
1422 #define _K_GATE(_id, _gate_offset, _gate_bit_idx, _gate_flags,\
1423                _mgate, _ops)\
1424         [_id] = {\
1425                 &(struct gate_cfg) {\
1426                         .reg_off        = _gate_offset,\
1427                         .bit_idx        = _gate_bit_idx,\
1428                         .gate_flags     = _gate_flags,\
1429                 },\
1430                 .mgate          = _mgate,\
1431                 .ops            = _ops,\
1432         }
1433
1434 #define K_GATE(_id, _gate_offset, _gate_bit_idx, _gate_flags)\
1435         _K_GATE(_id, _gate_offset, _gate_bit_idx, _gate_flags,\
1436                NULL, &mp1_gate_clk_ops)
1437
1438 #define K_MGATE(_id, _gate_offset, _gate_bit_idx, _gate_flags)\
1439         _K_GATE(_id, _gate_offset, _gate_bit_idx, _gate_flags,\
1440                &mp1_mgate[_id], &mp1_mgate_clk_ops)
1441
1442 /* Peripheral gates */
1443 struct stm32_gate_cfg per_gate_cfg[G_LAST] = {
1444         /* Multi gates */
1445         K_GATE(G_MDIO,          RCC_APB1ENSETR, 31, 0),
1446         K_MGATE(G_DAC12,        RCC_APB1ENSETR, 29, 0),
1447         K_MGATE(G_CEC,          RCC_APB1ENSETR, 27, 0),
1448         K_MGATE(G_SPDIF,        RCC_APB1ENSETR, 26, 0),
1449         K_MGATE(G_I2C5,         RCC_APB1ENSETR, 24, 0),
1450         K_MGATE(G_I2C3,         RCC_APB1ENSETR, 23, 0),
1451         K_MGATE(G_I2C2,         RCC_APB1ENSETR, 22, 0),
1452         K_MGATE(G_I2C1,         RCC_APB1ENSETR, 21, 0),
1453         K_MGATE(G_UART8,        RCC_APB1ENSETR, 19, 0),
1454         K_MGATE(G_UART7,        RCC_APB1ENSETR, 18, 0),
1455         K_MGATE(G_UART5,        RCC_APB1ENSETR, 17, 0),
1456         K_MGATE(G_UART4,        RCC_APB1ENSETR, 16, 0),
1457         K_MGATE(G_USART3,       RCC_APB1ENSETR, 15, 0),
1458         K_MGATE(G_USART2,       RCC_APB1ENSETR, 14, 0),
1459         K_MGATE(G_SPI3,         RCC_APB1ENSETR, 12, 0),
1460         K_MGATE(G_SPI2,         RCC_APB1ENSETR, 11, 0),
1461         K_MGATE(G_LPTIM1,       RCC_APB1ENSETR, 9, 0),
1462         K_GATE(G_TIM14,         RCC_APB1ENSETR, 8, 0),
1463         K_GATE(G_TIM13,         RCC_APB1ENSETR, 7, 0),
1464         K_GATE(G_TIM12,         RCC_APB1ENSETR, 6, 0),
1465         K_GATE(G_TIM7,          RCC_APB1ENSETR, 5, 0),
1466         K_GATE(G_TIM6,          RCC_APB1ENSETR, 4, 0),
1467         K_GATE(G_TIM5,          RCC_APB1ENSETR, 3, 0),
1468         K_GATE(G_TIM4,          RCC_APB1ENSETR, 2, 0),
1469         K_GATE(G_TIM3,          RCC_APB1ENSETR, 1, 0),
1470         K_GATE(G_TIM2,          RCC_APB1ENSETR, 0, 0),
1471
1472         K_MGATE(G_FDCAN,        RCC_APB2ENSETR, 24, 0),
1473         K_GATE(G_ADFSDM,        RCC_APB2ENSETR, 21, 0),
1474         K_GATE(G_DFSDM,         RCC_APB2ENSETR, 20, 0),
1475         K_MGATE(G_SAI3,         RCC_APB2ENSETR, 18, 0),
1476         K_MGATE(G_SAI2,         RCC_APB2ENSETR, 17, 0),
1477         K_MGATE(G_SAI1,         RCC_APB2ENSETR, 16, 0),
1478         K_MGATE(G_USART6,       RCC_APB2ENSETR, 13, 0),
1479         K_MGATE(G_SPI5,         RCC_APB2ENSETR, 10, 0),
1480         K_MGATE(G_SPI4,         RCC_APB2ENSETR, 9, 0),
1481         K_MGATE(G_SPI1,         RCC_APB2ENSETR, 8, 0),
1482         K_GATE(G_TIM17,         RCC_APB2ENSETR, 4, 0),
1483         K_GATE(G_TIM16,         RCC_APB2ENSETR, 3, 0),
1484         K_GATE(G_TIM15,         RCC_APB2ENSETR, 2, 0),
1485         K_GATE(G_TIM8,          RCC_APB2ENSETR, 1, 0),
1486         K_GATE(G_TIM1,          RCC_APB2ENSETR, 0, 0),
1487
1488         K_GATE(G_HDP,           RCC_APB3ENSETR, 20, 0),
1489         K_GATE(G_PMBCTRL,       RCC_APB3ENSETR, 17, 0),
1490         K_GATE(G_TMPSENS,       RCC_APB3ENSETR, 16, 0),
1491         K_GATE(G_VREF,          RCC_APB3ENSETR, 13, 0),
1492         K_GATE(G_SYSCFG,        RCC_APB3ENSETR, 11, 0),
1493         K_MGATE(G_SAI4,         RCC_APB3ENSETR, 8, 0),
1494         K_MGATE(G_LPTIM5,       RCC_APB3ENSETR, 3, 0),
1495         K_MGATE(G_LPTIM4,       RCC_APB3ENSETR, 2, 0),
1496         K_MGATE(G_LPTIM3,       RCC_APB3ENSETR, 1, 0),
1497         K_MGATE(G_LPTIM2,       RCC_APB3ENSETR, 0, 0),
1498
1499         K_GATE(G_STGENRO,       RCC_APB4ENSETR, 20, 0),
1500         K_MGATE(G_USBPHY,       RCC_APB4ENSETR, 16, 0),
1501         K_GATE(G_IWDG2,         RCC_APB4ENSETR, 15, 0),
1502         K_MGATE(G_DSI,          RCC_APB4ENSETR, 4, 0),
1503         K_MGATE(G_LTDC,         RCC_APB4ENSETR, 0, 0),
1504
1505         K_GATE(G_STGEN,         RCC_APB5ENSETR, 20, 0),
1506         K_GATE(G_BSEC,          RCC_APB5ENSETR, 16, 0),
1507         K_GATE(G_IWDG1,         RCC_APB5ENSETR, 15, 0),
1508         K_GATE(G_TZPC,          RCC_APB5ENSETR, 13, 0),
1509         K_GATE(G_TZC,           RCC_APB5ENSETR, 12, 0),
1510         K_GATE(G_RTCAPB,        RCC_APB5ENSETR, 8, 0),
1511         K_MGATE(G_USART1,       RCC_APB5ENSETR, 4, 0),
1512         K_MGATE(G_I2C6,         RCC_APB5ENSETR, 3, 0),
1513         K_MGATE(G_I2C4,         RCC_APB5ENSETR, 2, 0),
1514         K_MGATE(G_SPI6,         RCC_APB5ENSETR, 0, 0),
1515
1516         K_MGATE(G_SDMMC3,       RCC_AHB2ENSETR, 16, 0),
1517         K_MGATE(G_USBO,         RCC_AHB2ENSETR, 8, 0),
1518         K_MGATE(G_ADC12,        RCC_AHB2ENSETR, 5, 0),
1519         K_GATE(G_DMAMUX,        RCC_AHB2ENSETR, 2, 0),
1520         K_GATE(G_DMA2,          RCC_AHB2ENSETR, 1, 0),
1521         K_GATE(G_DMA1,          RCC_AHB2ENSETR, 0, 0),
1522
1523         K_GATE(G_IPCC,          RCC_AHB3ENSETR, 12, 0),
1524         K_GATE(G_HSEM,          RCC_AHB3ENSETR, 11, 0),
1525         K_GATE(G_CRC2,          RCC_AHB3ENSETR, 7, 0),
1526         K_MGATE(G_RNG2,         RCC_AHB3ENSETR, 6, 0),
1527         K_GATE(G_HASH2,         RCC_AHB3ENSETR, 5, 0),
1528         K_GATE(G_CRYP2,         RCC_AHB3ENSETR, 4, 0),
1529         K_GATE(G_DCMI,          RCC_AHB3ENSETR, 0, 0),
1530
1531         K_GATE(G_GPIOK,         RCC_AHB4ENSETR, 10, 0),
1532         K_GATE(G_GPIOJ,         RCC_AHB4ENSETR, 9, 0),
1533         K_GATE(G_GPIOI,         RCC_AHB4ENSETR, 8, 0),
1534         K_GATE(G_GPIOH,         RCC_AHB4ENSETR, 7, 0),
1535         K_GATE(G_GPIOG,         RCC_AHB4ENSETR, 6, 0),
1536         K_GATE(G_GPIOF,         RCC_AHB4ENSETR, 5, 0),
1537         K_GATE(G_GPIOE,         RCC_AHB4ENSETR, 4, 0),
1538         K_GATE(G_GPIOD,         RCC_AHB4ENSETR, 3, 0),
1539         K_GATE(G_GPIOC,         RCC_AHB4ENSETR, 2, 0),
1540         K_GATE(G_GPIOB,         RCC_AHB4ENSETR, 1, 0),
1541         K_GATE(G_GPIOA,         RCC_AHB4ENSETR, 0, 0),
1542
1543         K_GATE(G_BKPSRAM,       RCC_AHB5ENSETR, 8, 0),
1544         K_MGATE(G_RNG1,         RCC_AHB5ENSETR, 6, 0),
1545         K_GATE(G_HASH1,         RCC_AHB5ENSETR, 5, 0),
1546         K_GATE(G_CRYP1,         RCC_AHB5ENSETR, 4, 0),
1547         K_GATE(G_GPIOZ,         RCC_AHB5ENSETR, 0, 0),
1548
1549         K_GATE(G_USBH,          RCC_AHB6ENSETR, 24, 0),
1550         K_GATE(G_CRC1,          RCC_AHB6ENSETR, 20, 0),
1551         K_MGATE(G_SDMMC2,       RCC_AHB6ENSETR, 17, 0),
1552         K_MGATE(G_SDMMC1,       RCC_AHB6ENSETR, 16, 0),
1553         K_MGATE(G_QSPI,         RCC_AHB6ENSETR, 14, 0),
1554         K_MGATE(G_FMC,          RCC_AHB6ENSETR, 12, 0),
1555         K_GATE(G_ETHMAC,        RCC_AHB6ENSETR, 10, 0),
1556         K_GATE(G_ETHRX,         RCC_AHB6ENSETR, 9, 0),
1557         K_GATE(G_ETHTX,         RCC_AHB6ENSETR, 8, 0),
1558         K_GATE(G_ETHCK,         RCC_AHB6ENSETR, 7, 0),
1559         K_MGATE(G_GPU,          RCC_AHB6ENSETR, 5, 0),
1560         K_GATE(G_MDMA,          RCC_AHB6ENSETR, 0, 0),
1561         K_GATE(G_ETHSTP,        RCC_AHB6LPENSETR, 11, 0),
1562 };
1563
1564 enum {
1565         M_SDMMC12,
1566         M_SDMMC3,
1567         M_FMC,
1568         M_QSPI,
1569         M_RNG1,
1570         M_RNG2,
1571         M_USBPHY,
1572         M_USBO,
1573         M_STGEN,
1574         M_SPDIF,
1575         M_SPI1,
1576         M_SPI23,
1577         M_SPI45,
1578         M_SPI6,
1579         M_CEC,
1580         M_I2C12,
1581         M_I2C35,
1582         M_I2C46,
1583         M_LPTIM1,
1584         M_LPTIM23,
1585         M_LPTIM45,
1586         M_USART1,
1587         M_UART24,
1588         M_UART35,
1589         M_USART6,
1590         M_UART78,
1591         M_SAI1,
1592         M_SAI2,
1593         M_SAI3,
1594         M_SAI4,
1595         M_DSI,
1596         M_FDCAN,
1597         M_ADC12,
1598         M_ETHCK,
1599         M_CKPER,
1600         M_LAST
1601 };
1602
1603 struct stm32_mmux ker_mux[M_LAST];
1604
1605 #define _K_MUX(_id, _offset, _shift, _width, _mux_flags, _mmux, _ops)\
1606         [_id] = {\
1607                 &(struct mux_cfg) {\
1608                         .reg_off        = _offset,\
1609                         .shift          = _shift,\
1610                         .width          = _width,\
1611                         .mux_flags      = _mux_flags,\
1612                         .table          = NULL,\
1613                 },\
1614                 .mmux           = _mmux,\
1615                 .ops            = _ops,\
1616         }
1617
1618 #define K_MUX(_id, _offset, _shift, _width, _mux_flags)\
1619         _K_MUX(_id, _offset, _shift, _width, _mux_flags,\
1620                         NULL, NULL)
1621
1622 #define K_MMUX(_id, _offset, _shift, _width, _mux_flags)\
1623         _K_MUX(_id, _offset, _shift, _width, _mux_flags,\
1624                         &ker_mux[_id], &clk_mmux_ops)
1625
1626 const struct stm32_mux_cfg ker_mux_cfg[M_LAST] = {
1627         /* Kernel multi mux */
1628         K_MMUX(M_SDMMC12, RCC_SDMMC12CKSELR, 0, 3, 0),
1629         K_MMUX(M_SPI23, RCC_SPI2S23CKSELR, 0, 3, 0),
1630         K_MMUX(M_SPI45, RCC_SPI2S45CKSELR, 0, 3, 0),
1631         K_MMUX(M_I2C12, RCC_I2C12CKSELR, 0, 3, 0),
1632         K_MMUX(M_I2C35, RCC_I2C35CKSELR, 0, 3, 0),
1633         K_MMUX(M_LPTIM23, RCC_LPTIM23CKSELR, 0, 3, 0),
1634         K_MMUX(M_LPTIM45, RCC_LPTIM45CKSELR, 0, 3, 0),
1635         K_MMUX(M_UART24, RCC_UART24CKSELR, 0, 3, 0),
1636         K_MMUX(M_UART35, RCC_UART35CKSELR, 0, 3, 0),
1637         K_MMUX(M_UART78, RCC_UART78CKSELR, 0, 3, 0),
1638         K_MMUX(M_SAI1, RCC_SAI1CKSELR, 0, 3, 0),
1639         K_MMUX(M_ETHCK, RCC_ETHCKSELR, 0, 2, 0),
1640         K_MMUX(M_I2C46, RCC_I2C46CKSELR, 0, 3, 0),
1641
1642         /*  Kernel simple mux */
1643         K_MUX(M_RNG2, RCC_RNG2CKSELR, 0, 2, 0),
1644         K_MUX(M_SDMMC3, RCC_SDMMC3CKSELR, 0, 3, 0),
1645         K_MUX(M_FMC, RCC_FMCCKSELR, 0, 2, 0),
1646         K_MUX(M_QSPI, RCC_QSPICKSELR, 0, 2, 0),
1647         K_MUX(M_USBPHY, RCC_USBCKSELR, 0, 2, 0),
1648         K_MUX(M_USBO, RCC_USBCKSELR, 4, 1, 0),
1649         K_MUX(M_SPDIF, RCC_SPDIFCKSELR, 0, 2, 0),
1650         K_MUX(M_SPI1, RCC_SPI2S1CKSELR, 0, 3, 0),
1651         K_MUX(M_CEC, RCC_CECCKSELR, 0, 2, 0),
1652         K_MUX(M_LPTIM1, RCC_LPTIM1CKSELR, 0, 3, 0),
1653         K_MUX(M_USART6, RCC_UART6CKSELR, 0, 3, 0),
1654         K_MUX(M_FDCAN, RCC_FDCANCKSELR, 0, 2, 0),
1655         K_MUX(M_SAI2, RCC_SAI2CKSELR, 0, 3, 0),
1656         K_MUX(M_SAI3, RCC_SAI3CKSELR, 0, 3, 0),
1657         K_MUX(M_SAI4, RCC_SAI4CKSELR, 0, 3, 0),
1658         K_MUX(M_ADC12, RCC_ADCCKSELR, 0, 2, 0),
1659         K_MUX(M_DSI, RCC_DSICKSELR, 0, 1, 0),
1660         K_MUX(M_CKPER, RCC_CPERCKSELR, 0, 2, 0),
1661         K_MUX(M_RNG1, RCC_RNG1CKSELR, 0, 2, 0),
1662         K_MUX(M_STGEN, RCC_STGENCKSELR, 0, 2, 0),
1663         K_MUX(M_USART1, RCC_UART1CKSELR, 0, 3, 0),
1664         K_MUX(M_SPI6, RCC_SPI6CKSELR, 0, 3, 0),
1665 };
1666
1667 static const struct clock_config stm32mp1_clock_cfg[] = {
1668         /* Oscillator divider */
1669         DIV(NO_ID, "clk-hsi-div", "clk-hsi", 0, RCC_HSICFGR, 0, 2,
1670             CLK_DIVIDER_READ_ONLY),
1671
1672         /*  External / Internal Oscillators */
1673         GATE_MP1(CK_HSE, "ck_hse", "clk-hse", 0, RCC_OCENSETR, 8, 0),
1674         GATE_MP1(CK_CSI, "ck_csi", "clk-csi", 0, RCC_OCENSETR, 4, 0),
1675         GATE_MP1(CK_HSI, "ck_hsi", "clk-hsi-div", 0, RCC_OCENSETR, 0, 0),
1676         GATE(CK_LSI, "ck_lsi", "clk-lsi", 0, RCC_RDLSICR, 0, 0),
1677         GATE(CK_LSE, "ck_lse", "clk-lse", 0, RCC_BDCR, 0, 0),
1678
1679         FIXED_FACTOR(CK_HSE_DIV2, "clk-hse-div2", "ck_hse", 0, 1, 2),
1680
1681         /* ref clock pll */
1682         MUX(NO_ID, "ref1", ref12_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK12SELR,
1683             0, 2, CLK_MUX_READ_ONLY),
1684
1685         MUX(NO_ID, "ref3", ref3_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK3SELR,
1686             0, 2, CLK_MUX_READ_ONLY),
1687
1688         MUX(NO_ID, "ref4", ref4_parents, CLK_OPS_PARENT_ENABLE, RCC_RCK4SELR,
1689             0, 2, CLK_MUX_READ_ONLY),
1690
1691         /* PLLs */
1692         PLL(PLL1, "pll1", "ref1", CLK_IGNORE_UNUSED, RCC_PLL1CR),
1693         PLL(PLL2, "pll2", "ref1", CLK_IGNORE_UNUSED, RCC_PLL2CR),
1694         PLL(PLL3, "pll3", "ref3", CLK_IGNORE_UNUSED, RCC_PLL3CR),
1695         PLL(PLL4, "pll4", "ref4", CLK_IGNORE_UNUSED, RCC_PLL4CR),
1696
1697         /* ODF */
1698         COMPOSITE(PLL1_P, "pll1_p", PARENT("pll1"), 0,
1699                   _GATE(RCC_PLL1CR, 4, 0),
1700                   _NO_MUX,
1701                   _DIV(RCC_PLL1CFGR2, 0, 7, 0, NULL)),
1702
1703         COMPOSITE(PLL2_P, "pll2_p", PARENT("pll2"), 0,
1704                   _GATE(RCC_PLL2CR, 4, 0),
1705                   _NO_MUX,
1706                   _DIV(RCC_PLL2CFGR2, 0, 7, 0, NULL)),
1707
1708         COMPOSITE(PLL2_Q, "pll2_q", PARENT("pll2"), 0,
1709                   _GATE(RCC_PLL2CR, 5, 0),
1710                   _NO_MUX,
1711                   _DIV(RCC_PLL2CFGR2, 8, 7, 0, NULL)),
1712
1713         COMPOSITE(PLL2_R, "pll2_r", PARENT("pll2"), CLK_IS_CRITICAL,
1714                   _GATE(RCC_PLL2CR, 6, 0),
1715                   _NO_MUX,
1716                   _DIV(RCC_PLL2CFGR2, 16, 7, 0, NULL)),
1717
1718         COMPOSITE(PLL3_P, "pll3_p", PARENT("pll3"), 0,
1719                   _GATE(RCC_PLL3CR, 4, 0),
1720                   _NO_MUX,
1721                   _DIV(RCC_PLL3CFGR2, 0, 7, 0, NULL)),
1722
1723         COMPOSITE(PLL3_Q, "pll3_q", PARENT("pll3"), 0,
1724                   _GATE(RCC_PLL3CR, 5, 0),
1725                   _NO_MUX,
1726                   _DIV(RCC_PLL3CFGR2, 8, 7, 0, NULL)),
1727
1728         COMPOSITE(PLL3_R, "pll3_r", PARENT("pll3"), 0,
1729                   _GATE(RCC_PLL3CR, 6, 0),
1730                   _NO_MUX,
1731                   _DIV(RCC_PLL3CFGR2, 16, 7, 0, NULL)),
1732
1733         COMPOSITE(PLL4_P, "pll4_p", PARENT("pll4"), 0,
1734                   _GATE(RCC_PLL4CR, 4, 0),
1735                   _NO_MUX,
1736                   _DIV(RCC_PLL4CFGR2, 0, 7, 0, NULL)),
1737
1738         COMPOSITE(PLL4_Q, "pll4_q", PARENT("pll4"), 0,
1739                   _GATE(RCC_PLL4CR, 5, 0),
1740                   _NO_MUX,
1741                   _DIV(RCC_PLL4CFGR2, 8, 7, 0, NULL)),
1742
1743         COMPOSITE(PLL4_R, "pll4_r", PARENT("pll4"), 0,
1744                   _GATE(RCC_PLL4CR, 6, 0),
1745                   _NO_MUX,
1746                   _DIV(RCC_PLL4CFGR2, 16, 7, 0, NULL)),
1747
1748         /* MUX system clocks */
1749         MUX(CK_PER, "ck_per", per_src, CLK_OPS_PARENT_ENABLE,
1750             RCC_CPERCKSELR, 0, 2, 0),
1751
1752         MUX(CK_MPU, "ck_mpu", cpu_src, CLK_OPS_PARENT_ENABLE |
1753              CLK_IS_CRITICAL, RCC_MPCKSELR, 0, 2, 0),
1754
1755         COMPOSITE(CK_AXI, "ck_axi", axi_src, CLK_IS_CRITICAL |
1756                    CLK_OPS_PARENT_ENABLE,
1757                    _NO_GATE,
1758                    _MUX(RCC_ASSCKSELR, 0, 2, 0),
1759                    _DIV(RCC_AXIDIVR, 0, 3, 0, axi_div_table)),
1760
1761         COMPOSITE(CK_MCU, "ck_mcu", mcu_src, CLK_IS_CRITICAL |
1762                    CLK_OPS_PARENT_ENABLE,
1763                    _NO_GATE,
1764                    _MUX(RCC_MSSCKSELR, 0, 2, 0),
1765                    _DIV(RCC_MCUDIVR, 0, 4, 0, mcu_div_table)),
1766
1767         DIV_TABLE(NO_ID, "pclk1", "ck_mcu", CLK_IGNORE_UNUSED, RCC_APB1DIVR, 0,
1768                   3, CLK_DIVIDER_READ_ONLY, apb_div_table),
1769
1770         DIV_TABLE(NO_ID, "pclk2", "ck_mcu", CLK_IGNORE_UNUSED, RCC_APB2DIVR, 0,
1771                   3, CLK_DIVIDER_READ_ONLY, apb_div_table),
1772
1773         DIV_TABLE(NO_ID, "pclk3", "ck_mcu", CLK_IGNORE_UNUSED, RCC_APB3DIVR, 0,
1774                   3, CLK_DIVIDER_READ_ONLY, apb_div_table),
1775
1776         DIV_TABLE(NO_ID, "pclk4", "ck_axi", CLK_IGNORE_UNUSED, RCC_APB4DIVR, 0,
1777                   3, CLK_DIVIDER_READ_ONLY, apb_div_table),
1778
1779         DIV_TABLE(NO_ID, "pclk5", "ck_axi", CLK_IGNORE_UNUSED, RCC_APB5DIVR, 0,
1780                   3, CLK_DIVIDER_READ_ONLY, apb_div_table),
1781
1782         /* Kernel Timers */
1783         STM32_CKTIM("ck1_tim", "pclk1", 0, RCC_APB1DIVR, RCC_TIMG1PRER),
1784         STM32_CKTIM("ck2_tim", "pclk2", 0, RCC_APB2DIVR, RCC_TIMG2PRER),
1785
1786         STM32_TIM(TIM2_K, "tim2_k", "ck1_tim", RCC_APB1ENSETR, 0),
1787         STM32_TIM(TIM3_K, "tim3_k", "ck1_tim", RCC_APB1ENSETR, 1),
1788         STM32_TIM(TIM4_K, "tim4_k", "ck1_tim", RCC_APB1ENSETR, 2),
1789         STM32_TIM(TIM5_K, "tim5_k", "ck1_tim", RCC_APB1ENSETR, 3),
1790         STM32_TIM(TIM6_K, "tim6_k", "ck1_tim", RCC_APB1ENSETR, 4),
1791         STM32_TIM(TIM7_K, "tim7_k", "ck1_tim", RCC_APB1ENSETR, 5),
1792         STM32_TIM(TIM12_K, "tim12_k", "ck1_tim", RCC_APB1ENSETR, 6),
1793         STM32_TIM(TIM13_K, "tim13_k", "ck1_tim", RCC_APB1ENSETR, 7),
1794         STM32_TIM(TIM14_K, "tim14_k", "ck1_tim", RCC_APB1ENSETR, 8),
1795         STM32_TIM(TIM1_K, "tim1_k", "ck2_tim", RCC_APB2ENSETR, 0),
1796         STM32_TIM(TIM8_K, "tim8_k", "ck2_tim", RCC_APB2ENSETR, 1),
1797         STM32_TIM(TIM15_K, "tim15_k", "ck2_tim", RCC_APB2ENSETR, 2),
1798         STM32_TIM(TIM16_K, "tim16_k", "ck2_tim", RCC_APB2ENSETR, 3),
1799         STM32_TIM(TIM17_K, "tim17_k", "ck2_tim", RCC_APB2ENSETR, 4),
1800
1801         /* Peripheral clocks */
1802         PCLK(TIM2, "tim2", "pclk1", CLK_IGNORE_UNUSED, G_TIM2),
1803         PCLK(TIM3, "tim3", "pclk1", CLK_IGNORE_UNUSED, G_TIM3),
1804         PCLK(TIM4, "tim4", "pclk1", CLK_IGNORE_UNUSED, G_TIM4),
1805         PCLK(TIM5, "tim5", "pclk1", CLK_IGNORE_UNUSED, G_TIM5),
1806         PCLK(TIM6, "tim6", "pclk1", CLK_IGNORE_UNUSED, G_TIM6),
1807         PCLK(TIM7, "tim7", "pclk1", CLK_IGNORE_UNUSED, G_TIM7),
1808         PCLK(TIM12, "tim12", "pclk1", CLK_IGNORE_UNUSED, G_TIM12),
1809         PCLK(TIM13, "tim13", "pclk1", CLK_IGNORE_UNUSED, G_TIM13),
1810         PCLK(TIM14, "tim14", "pclk1", CLK_IGNORE_UNUSED, G_TIM14),
1811         PCLK(LPTIM1, "lptim1", "pclk1", 0, G_LPTIM1),
1812         PCLK(SPI2, "spi2", "pclk1", 0, G_SPI2),
1813         PCLK(SPI3, "spi3", "pclk1", 0, G_SPI3),
1814         PCLK(USART2, "usart2", "pclk1", 0, G_USART2),
1815         PCLK(USART3, "usart3", "pclk1", 0, G_USART3),
1816         PCLK(UART4, "uart4", "pclk1", 0, G_UART4),
1817         PCLK(UART5, "uart5", "pclk1", 0, G_UART5),
1818         PCLK(UART7, "uart7", "pclk1", 0, G_UART7),
1819         PCLK(UART8, "uart8", "pclk1", 0, G_UART8),
1820         PCLK(I2C1, "i2c1", "pclk1", 0, G_I2C1),
1821         PCLK(I2C2, "i2c2", "pclk1", 0, G_I2C2),
1822         PCLK(I2C3, "i2c3", "pclk1", 0, G_I2C3),
1823         PCLK(I2C5, "i2c5", "pclk1", 0, G_I2C5),
1824         PCLK(SPDIF, "spdif", "pclk1", 0, G_SPDIF),
1825         PCLK(CEC, "cec", "pclk1", 0, G_CEC),
1826         PCLK(DAC12, "dac12", "pclk1", 0, G_DAC12),
1827         PCLK(MDIO, "mdio", "pclk1", 0, G_MDIO),
1828         PCLK(TIM1, "tim1", "pclk2", CLK_IGNORE_UNUSED, G_TIM1),
1829         PCLK(TIM8, "tim8", "pclk2", CLK_IGNORE_UNUSED, G_TIM8),
1830         PCLK(TIM15, "tim15", "pclk2", CLK_IGNORE_UNUSED, G_TIM15),
1831         PCLK(TIM16, "tim16", "pclk2", CLK_IGNORE_UNUSED, G_TIM16),
1832         PCLK(TIM17, "tim17", "pclk2", CLK_IGNORE_UNUSED, G_TIM17),
1833         PCLK(SPI1, "spi1", "pclk2", 0, G_SPI1),
1834         PCLK(SPI4, "spi4", "pclk2", 0, G_SPI4),
1835         PCLK(SPI5, "spi5", "pclk2", 0, G_SPI5),
1836         PCLK(USART6, "usart6", "pclk2", 0, G_USART6),
1837         PCLK(SAI1, "sai1", "pclk2", 0, G_SAI1),
1838         PCLK(SAI2, "sai2", "pclk2", 0, G_SAI2),
1839         PCLK(SAI3, "sai3", "pclk2", 0, G_SAI3),
1840         PCLK(DFSDM, "dfsdm", "pclk2", 0, G_DFSDM),
1841         PCLK(FDCAN, "fdcan", "pclk2", 0, G_FDCAN),
1842         PCLK(LPTIM2, "lptim2", "pclk3", 0, G_LPTIM2),
1843         PCLK(LPTIM3, "lptim3", "pclk3", 0, G_LPTIM3),
1844         PCLK(LPTIM4, "lptim4", "pclk3", 0, G_LPTIM4),
1845         PCLK(LPTIM5, "lptim5", "pclk3", 0, G_LPTIM5),
1846         PCLK(SAI4, "sai4", "pclk3", 0, G_SAI4),
1847         PCLK(SYSCFG, "syscfg", "pclk3", 0, G_SYSCFG),
1848         PCLK(VREF, "vref", "pclk3", 13, G_VREF),
1849         PCLK(TMPSENS, "tmpsens", "pclk3", 0, G_TMPSENS),
1850         PCLK(PMBCTRL, "pmbctrl", "pclk3", 0, G_PMBCTRL),
1851         PCLK(HDP, "hdp", "pclk3", 0, G_HDP),
1852         PCLK(LTDC, "ltdc", "pclk4", 0, G_LTDC),
1853         PCLK(DSI, "dsi", "pclk4", 0, G_DSI),
1854         PCLK(IWDG2, "iwdg2", "pclk4", 0, G_IWDG2),
1855         PCLK(USBPHY, "usbphy", "pclk4", 0, G_USBPHY),
1856         PCLK(STGENRO, "stgenro", "pclk4", 0, G_STGENRO),
1857         PCLK(SPI6, "spi6", "pclk5", 0, G_SPI6),
1858         PCLK(I2C4, "i2c4", "pclk5", 0, G_I2C4),
1859         PCLK(I2C6, "i2c6", "pclk5", 0, G_I2C6),
1860         PCLK(USART1, "usart1", "pclk5", 0, G_USART1),
1861         PCLK(RTCAPB, "rtcapb", "pclk5", CLK_IGNORE_UNUSED |
1862              CLK_IS_CRITICAL, G_RTCAPB),
1863         PCLK(TZC, "tzc", "pclk5", CLK_IGNORE_UNUSED, G_TZC),
1864         PCLK(TZPC, "tzpc", "pclk5", CLK_IGNORE_UNUSED, G_TZPC),
1865         PCLK(IWDG1, "iwdg1", "pclk5", 0, G_IWDG1),
1866         PCLK(BSEC, "bsec", "pclk5", CLK_IGNORE_UNUSED, G_BSEC),
1867         PCLK(STGEN, "stgen", "pclk5", CLK_IGNORE_UNUSED, G_STGEN),
1868         PCLK(DMA1, "dma1", "ck_mcu", 0, G_DMA1),
1869         PCLK(DMA2, "dma2", "ck_mcu",  0, G_DMA2),
1870         PCLK(DMAMUX, "dmamux", "ck_mcu", 0, G_DMAMUX),
1871         PCLK(ADC12, "adc12", "ck_mcu", 0, G_ADC12),
1872         PCLK(USBO, "usbo", "ck_mcu", 0, G_USBO),
1873         PCLK(SDMMC3, "sdmmc3", "ck_mcu", 0, G_SDMMC3),
1874         PCLK(DCMI, "dcmi", "ck_mcu", 0, G_DCMI),
1875         PCLK(CRYP2, "cryp2", "ck_mcu", 0, G_CRYP2),
1876         PCLK(HASH2, "hash2", "ck_mcu", 0, G_HASH2),
1877         PCLK(RNG2, "rng2", "ck_mcu", 0, G_RNG2),
1878         PCLK(CRC2, "crc2", "ck_mcu", 0, G_CRC2),
1879         PCLK(HSEM, "hsem", "ck_mcu", 0, G_HSEM),
1880         PCLK(IPCC, "ipcc", "ck_mcu", 0, G_IPCC),
1881         PCLK(GPIOA, "gpioa", "ck_mcu", 0, G_GPIOA),
1882         PCLK(GPIOB, "gpiob", "ck_mcu", 0, G_GPIOB),
1883         PCLK(GPIOC, "gpioc", "ck_mcu", 0, G_GPIOC),
1884         PCLK(GPIOD, "gpiod", "ck_mcu", 0, G_GPIOD),
1885         PCLK(GPIOE, "gpioe", "ck_mcu", 0, G_GPIOE),
1886         PCLK(GPIOF, "gpiof", "ck_mcu", 0, G_GPIOF),
1887         PCLK(GPIOG, "gpiog", "ck_mcu", 0, G_GPIOG),
1888         PCLK(GPIOH, "gpioh", "ck_mcu", 0, G_GPIOH),
1889         PCLK(GPIOI, "gpioi", "ck_mcu", 0, G_GPIOI),
1890         PCLK(GPIOJ, "gpioj", "ck_mcu", 0, G_GPIOJ),
1891         PCLK(GPIOK, "gpiok", "ck_mcu", 0, G_GPIOK),
1892         PCLK(GPIOZ, "gpioz", "ck_axi", CLK_IGNORE_UNUSED, G_GPIOZ),
1893         PCLK(CRYP1, "cryp1", "ck_axi", CLK_IGNORE_UNUSED, G_CRYP1),
1894         PCLK(HASH1, "hash1", "ck_axi", CLK_IGNORE_UNUSED, G_HASH1),
1895         PCLK(RNG1, "rng1", "ck_axi", 0, G_RNG1),
1896         PCLK(BKPSRAM, "bkpsram", "ck_axi", CLK_IGNORE_UNUSED, G_BKPSRAM),
1897         PCLK(MDMA, "mdma", "ck_axi", 0, G_MDMA),
1898         PCLK(GPU, "gpu", "ck_axi", 0, G_GPU),
1899         PCLK(ETHTX, "ethtx", "ck_axi", 0, G_ETHTX),
1900         PCLK(ETHRX, "ethrx", "ck_axi", 0, G_ETHRX),
1901         PCLK(ETHMAC, "ethmac", "ck_axi", 0, G_ETHMAC),
1902         PCLK(FMC, "fmc", "ck_axi", CLK_IGNORE_UNUSED, G_FMC),
1903         PCLK(QSPI, "qspi", "ck_axi", CLK_IGNORE_UNUSED, G_QSPI),
1904         PCLK(SDMMC1, "sdmmc1", "ck_axi", 0, G_SDMMC1),
1905         PCLK(SDMMC2, "sdmmc2", "ck_axi", 0, G_SDMMC2),
1906         PCLK(CRC1, "crc1", "ck_axi", 0, G_CRC1),
1907         PCLK(USBH, "usbh", "ck_axi", 0, G_USBH),
1908         PCLK(ETHSTP, "ethstp", "ck_axi", 0, G_ETHSTP),
1909
1910         /* Kernel clocks */
1911         KCLK(SDMMC1_K, "sdmmc1_k", sdmmc12_src, 0, G_SDMMC1, M_SDMMC12),
1912         KCLK(SDMMC2_K, "sdmmc2_k", sdmmc12_src, 0, G_SDMMC2, M_SDMMC12),
1913         KCLK(SDMMC3_K, "sdmmc3_k", sdmmc3_src, 0, G_SDMMC3, M_SDMMC3),
1914         KCLK(FMC_K, "fmc_k", fmc_src, 0, G_FMC, M_FMC),
1915         KCLK(QSPI_K, "qspi_k", qspi_src, 0, G_QSPI, M_QSPI),
1916         KCLK(RNG1_K, "rng1_k", rng_src, 0, G_RNG1, M_RNG1),
1917         KCLK(RNG2_K, "rng2_k", rng_src, 0, G_RNG2, M_RNG2),
1918         KCLK(USBPHY_K, "usbphy_k", usbphy_src, 0, G_USBPHY, M_USBPHY),
1919         KCLK(STGEN_K, "stgen_k",  stgen_src, CLK_IGNORE_UNUSED,
1920              G_STGEN, M_STGEN),
1921         KCLK(SPDIF_K, "spdif_k", spdif_src, 0, G_SPDIF, M_SPDIF),
1922         KCLK(SPI1_K, "spi1_k", spi123_src, 0, G_SPI1, M_SPI1),
1923         KCLK(SPI2_K, "spi2_k", spi123_src, 0, G_SPI2, M_SPI23),
1924         KCLK(SPI3_K, "spi3_k", spi123_src, 0, G_SPI3, M_SPI23),
1925         KCLK(SPI4_K, "spi4_k", spi45_src, 0, G_SPI4, M_SPI45),
1926         KCLK(SPI5_K, "spi5_k", spi45_src, 0, G_SPI5, M_SPI45),
1927         KCLK(SPI6_K, "spi6_k", spi6_src, 0, G_SPI6, M_SPI6),
1928         KCLK(CEC_K, "cec_k", cec_src, 0, G_CEC, M_CEC),
1929         KCLK(I2C1_K, "i2c1_k", i2c12_src, 0, G_I2C1, M_I2C12),
1930         KCLK(I2C2_K, "i2c2_k", i2c12_src, 0, G_I2C2, M_I2C12),
1931         KCLK(I2C3_K, "i2c3_k", i2c35_src, 0, G_I2C3, M_I2C35),
1932         KCLK(I2C5_K, "i2c5_k", i2c35_src, 0, G_I2C5, M_I2C35),
1933         KCLK(I2C4_K, "i2c4_k", i2c46_src, 0, G_I2C4, M_I2C46),
1934         KCLK(I2C6_K, "i2c6_k", i2c46_src, 0, G_I2C6, M_I2C46),
1935         KCLK(LPTIM1_K, "lptim1_k", lptim1_src, 0, G_LPTIM1, M_LPTIM1),
1936         KCLK(LPTIM2_K, "lptim2_k", lptim23_src, 0, G_LPTIM2, M_LPTIM23),
1937         KCLK(LPTIM3_K, "lptim3_k", lptim23_src, 0, G_LPTIM3, M_LPTIM23),
1938         KCLK(LPTIM4_K, "lptim4_k", lptim45_src, 0, G_LPTIM4, M_LPTIM45),
1939         KCLK(LPTIM5_K, "lptim5_k", lptim45_src, 0, G_LPTIM5, M_LPTIM45),
1940         KCLK(USART1_K, "usart1_k", usart1_src, 0, G_USART1, M_USART1),
1941         KCLK(USART2_K, "usart2_k", usart234578_src, 0, G_USART2, M_UART24),
1942         KCLK(USART3_K, "usart3_k", usart234578_src, 0, G_USART3, M_UART35),
1943         KCLK(UART4_K, "uart4_k", usart234578_src, 0, G_UART4, M_UART24),
1944         KCLK(UART5_K, "uart5_k", usart234578_src, 0, G_UART5, M_UART35),
1945         KCLK(USART6_K, "uart6_k", usart6_src, 0, G_USART6, M_USART6),
1946         KCLK(UART7_K, "uart7_k", usart234578_src, 0, G_UART7, M_UART78),
1947         KCLK(UART8_K, "uart8_k", usart234578_src, 0, G_UART8, M_UART78),
1948         KCLK(FDCAN_K, "fdcan_k", fdcan_src, 0, G_FDCAN, M_FDCAN),
1949         KCLK(SAI1_K, "sai1_k", sai_src, 0, G_SAI1, M_SAI1),
1950         KCLK(SAI2_K, "sai2_k", sai2_src, 0, G_SAI2, M_SAI2),
1951         KCLK(SAI3_K, "sai3_k", sai_src, 0, G_SAI2, M_SAI3),
1952         KCLK(SAI4_K, "sai4_k", sai_src, 0, G_SAI2, M_SAI4),
1953         KCLK(ADC12_K, "adc12_k", adc12_src, 0, G_ADC12, M_ADC12),
1954         KCLK(DSI_K, "dsi_k", dsi_src, 0, G_DSI, M_DSI),
1955         KCLK(ADFSDM_K, "adfsdm_k", sai_src, 0, G_ADFSDM, M_SAI1),
1956         KCLK(USBO_K, "usbo_k", usbo_src, 0, G_USBO, M_USBO),
1957         KCLK(ETHCK_K, "ethck_k", eth_src, 0, G_ETHCK, M_ETHCK),
1958
1959         /* Particulary Kernel Clocks (no mux or no gate) */
1960         MGATE_MP1(DFSDM_K, "dfsdm_k", "ck_mcu", 0, G_DFSDM),
1961         MGATE_MP1(DSI_PX, "dsi_px", "pll4_q", CLK_SET_RATE_PARENT, G_DSI),
1962         MGATE_MP1(LTDC_PX, "ltdc_px", "pll4_q", CLK_SET_RATE_PARENT, G_LTDC),
1963         MGATE_MP1(GPU_K, "gpu_k", "pll2_q", 0, G_GPU),
1964         MGATE_MP1(DAC12_K, "dac12_k", "ck_lsi", 0, G_DAC12),
1965
1966         COMPOSITE(ETHPTP_K, "ethptp_k", eth_src, CLK_OPS_PARENT_ENABLE,
1967                   _NO_GATE,
1968                   _MMUX(M_ETHCK),
1969                   _DIV(RCC_ETHCKSELR, 4, 4, CLK_DIVIDER_ALLOW_ZERO, NULL)),
1970
1971         /* RTC clock */
1972         DIV(NO_ID, "ck_hse_rtc", "ck_hse", 0, RCC_RTCDIVR, 0, 7,
1973             CLK_DIVIDER_ALLOW_ZERO),
1974
1975         COMPOSITE(RTC, "ck_rtc", rtc_src, CLK_OPS_PARENT_ENABLE |
1976                    CLK_SET_RATE_PARENT,
1977                   _GATE(RCC_BDCR, 20, 0),
1978                   _MUX(RCC_BDCR, 16, 2, 0),
1979                   _NO_DIV),
1980
1981         /* MCO clocks */
1982         COMPOSITE(CK_MCO1, "ck_mco1", mco1_src, CLK_OPS_PARENT_ENABLE |
1983                   CLK_SET_RATE_NO_REPARENT,
1984                   _GATE(RCC_MCO1CFGR, 12, 0),
1985                   _MUX(RCC_MCO1CFGR, 0, 3, 0),
1986                   _DIV(RCC_MCO1CFGR, 4, 4, 0, NULL)),
1987
1988         COMPOSITE(CK_MCO2, "ck_mco2", mco2_src, CLK_OPS_PARENT_ENABLE |
1989                   CLK_SET_RATE_NO_REPARENT,
1990                   _GATE(RCC_MCO2CFGR, 12, 0),
1991                   _MUX(RCC_MCO2CFGR, 0, 3, 0),
1992                   _DIV(RCC_MCO2CFGR, 4, 4, 0, NULL)),
1993
1994         /* Debug clocks */
1995         FIXED_FACTOR(NO_ID, "ck_axi_div2", "ck_axi", 0, 1, 2),
1996
1997         GATE(DBG, "ck_apb_dbg", "ck_axi_div2", 0, RCC_DBGCFGR, 8, 0),
1998
1999         GATE(CK_DBG, "ck_sys_dbg", "ck_axi", 0, RCC_DBGCFGR, 8, 0),
2000
2001         COMPOSITE(CK_TRACE, "ck_trace", ck_trace_src, CLK_OPS_PARENT_ENABLE,
2002                   _GATE(RCC_DBGCFGR, 9, 0),
2003                   _NO_MUX,
2004                   _DIV(RCC_DBGCFGR, 0, 3, 0, ck_trace_div_table)),
2005 };
2006
2007 struct stm32_clock_match_data {
2008         const struct clock_config *cfg;
2009         unsigned int num;
2010         unsigned int maxbinding;
2011 };
2012
2013 static struct stm32_clock_match_data stm32mp1_data = {
2014         .cfg            = stm32mp1_clock_cfg,
2015         .num            = ARRAY_SIZE(stm32mp1_clock_cfg),
2016         .maxbinding     = STM32MP1_LAST_CLK,
2017 };
2018
2019 static const struct of_device_id stm32mp1_match_data[] = {
2020         {
2021                 .compatible = "st,stm32mp1-rcc",
2022                 .data = &stm32mp1_data,
2023         },
2024         { }
2025 };
2026
2027 static int stm32_register_hw_clk(struct device *dev,
2028                                  struct clk_hw_onecell_data *clk_data,
2029                                  void __iomem *base, spinlock_t *lock,
2030                                  const struct clock_config *cfg)
2031 {
2032         static struct clk_hw **hws;
2033         struct clk_hw *hw = ERR_PTR(-ENOENT);
2034
2035         hws = clk_data->hws;
2036
2037         if (cfg->func)
2038                 hw = (*cfg->func)(dev, clk_data, base, lock, cfg);
2039
2040         if (IS_ERR(hw)) {
2041                 pr_err("Unable to register %s\n", cfg->name);
2042                 return  PTR_ERR(hw);
2043         }
2044
2045         if (cfg->id != NO_ID)
2046                 hws[cfg->id] = hw;
2047
2048         return 0;
2049 }
2050
2051 static int stm32_rcc_init(struct device_node *np,
2052                           void __iomem *base,
2053                           const struct of_device_id *match_data)
2054 {
2055         struct clk_hw_onecell_data *clk_data;
2056         struct clk_hw **hws;
2057         const struct of_device_id *match;
2058         const struct stm32_clock_match_data *data;
2059         int err, n, max_binding;
2060
2061         match = of_match_node(match_data, np);
2062         if (!match) {
2063                 pr_err("%s: match data not found\n", __func__);
2064                 return -ENODEV;
2065         }
2066
2067         data = match->data;
2068
2069         max_binding =  data->maxbinding;
2070
2071         clk_data = kzalloc(sizeof(*clk_data) +
2072                                   sizeof(*clk_data->hws) * max_binding,
2073                                   GFP_KERNEL);
2074         if (!clk_data)
2075                 return -ENOMEM;
2076
2077         clk_data->num = max_binding;
2078
2079         hws = clk_data->hws;
2080
2081         for (n = 0; n < max_binding; n++)
2082                 hws[n] = ERR_PTR(-ENOENT);
2083
2084         for (n = 0; n < data->num; n++) {
2085                 err = stm32_register_hw_clk(NULL, clk_data, base, &rlock,
2086                                             &data->cfg[n]);
2087                 if (err) {
2088                         pr_err("%s: can't register  %s\n", __func__,
2089                                data->cfg[n].name);
2090
2091                         kfree(clk_data);
2092
2093                         return err;
2094                 }
2095         }
2096
2097         return of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_data);
2098 }
2099
2100 static void stm32mp1_rcc_init(struct device_node *np)
2101 {
2102         void __iomem *base;
2103
2104         base = of_iomap(np, 0);
2105         if (!base) {
2106                 pr_err("%s: unable to map resource", np->name);
2107                 of_node_put(np);
2108                 return;
2109         }
2110
2111         if (stm32_rcc_init(np, base, stm32mp1_match_data)) {
2112                 iounmap(base);
2113                 of_node_put(np);
2114         }
2115 }
2116
2117 CLK_OF_DECLARE_DRIVER(stm32mp1_rcc, "st,stm32mp1-rcc", stm32mp1_rcc_init);