sound/soc/codecs/madera.h

   1 /*
   2  * madera.h - Cirrus Logic Madera class codecs common support
   3  *
   4  * Copyright 2015-2017 Cirrus Logic
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  */
  10
  11 #ifndef ASOC_MADERA_H
  12 #define ASOC_MADERA_H
  13
  14 #include <linux/completion.h>
  15
  16 #include <sound/soc.h>
  17 #include <sound/madera-pdata.h>
  18
  19 #include "wm_adsp.h"
  20
  21 #define MADERA_FLL1_REFCLK              1
  22 #define MADERA_FLL2_REFCLK              2
  23 #define MADERA_FLL3_REFCLK              3
  24 #define MADERA_FLLAO_REFCLK             4
  25 #define MADERA_FLL1_SYNCCLK             5
  26 #define MADERA_FLL2_SYNCCLK             6
  27 #define MADERA_FLL3_SYNCCLK             7
  28 #define MADERA_FLLAO_SYNCCLK            8
  29
  30 #define MADERA_FLL_SRC_NONE             -1
  31 #define MADERA_FLL_SRC_MCLK1            0
  32 #define MADERA_FLL_SRC_MCLK2            1
  33 #define MADERA_FLL_SRC_SLIMCLK          3
  34 #define MADERA_FLL_SRC_FLL1             4
  35 #define MADERA_FLL_SRC_FLL2             5
  36 #define MADERA_FLL_SRC_AIF1BCLK         8
  37 #define MADERA_FLL_SRC_AIF2BCLK         9
  38 #define MADERA_FLL_SRC_AIF3BCLK         10
  39 #define MADERA_FLL_SRC_AIF4BCLK         11
  40 #define MADERA_FLL_SRC_AIF1LRCLK        12
  41 #define MADERA_FLL_SRC_AIF2LRCLK        13
  42 #define MADERA_FLL_SRC_AIF3LRCLK        14
  43 #define MADERA_FLL_SRC_AIF4LRCLK        15
  44
  45 #define MADERA_CLK_SYSCLK_1             1
  46 #define MADERA_CLK_ASYNCCLK_1           2
  47 #define MADERA_CLK_OPCLK                3
  48 #define MADERA_CLK_ASYNC_OPCLK          4
  49 #define MADERA_CLK_SYSCLK_2             5
  50 #define MADERA_CLK_SYSCLK_3             6
  51 #define MADERA_CLK_ASYNCCLK_2           7
  52 #define MADERA_CLK_DSPCLK               8
  53
  54 #define MADERA_CLK_SRC_MCLK1            0x0
  55 #define MADERA_CLK_SRC_MCLK2            0x1
  56 #define MADERA_CLK_SRC_FLL1             0x4
  57 #define MADERA_CLK_SRC_FLL2             0x5
  58 #define MADERA_CLK_SRC_FLL3             0x6
  59 #define MADERA_CLK_SRC_FLLAO_HI         0x7
  60 #define MADERA_CLK_SRC_FLL1_DIV6        0x7
  61 #define MADERA_CLK_SRC_AIF1BCLK         0x8
  62 #define MADERA_CLK_SRC_AIF2BCLK         0x9
  63 #define MADERA_CLK_SRC_AIF3BCLK         0xA
  64 #define MADERA_CLK_SRC_AIF4BCLK         0xB
  65 #define MADERA_CLK_SRC_FLLAO            0xF
  66
  67 #define MADERA_MIXER_VOL_MASK           0x00FE
  68 #define MADERA_MIXER_VOL_SHIFT          1
  69 #define MADERA_MIXER_VOL_WIDTH          7
  70
  71 #define MADERA_DOM_GRP_FX               0
  72 #define MADERA_DOM_GRP_ASRC1_RATE_1     1
  73 #define MADERA_DOM_GRP_ASRC1_RATE_2     2
  74 #define MADERA_DOM_GRP_ASRC2_RATE_1     3
  75 #define MADERA_DOM_GRP_ASRC2_RATE_2     4
  76 #define MADERA_DOM_GRP_ISRC1_DEC        5
  77 #define MADERA_DOM_GRP_ISRC1_INT        6
  78 #define MADERA_DOM_GRP_ISRC2_DEC        7
  79 #define MADERA_DOM_GRP_ISRC2_INT        8
  80 #define MADERA_DOM_GRP_ISRC3_DEC        9
  81 #define MADERA_DOM_GRP_ISRC3_INT        10
  82 #define MADERA_DOM_GRP_ISRC4_DEC        11
  83 #define MADERA_DOM_GRP_ISRC4_INT        12
  84 #define MADERA_DOM_GRP_OUT              13
  85 #define MADERA_DOM_GRP_SPD              14
  86 #define MADERA_DOM_GRP_DSP1             15
  87 #define MADERA_DOM_GRP_DSP2             16
  88 #define MADERA_DOM_GRP_DSP3             17
  89 #define MADERA_DOM_GRP_DSP4             18
  90 #define MADERA_DOM_GRP_DSP5             19
  91 #define MADERA_DOM_GRP_DSP6             20
  92 #define MADERA_DOM_GRP_DSP7             21
  93 #define MADERA_DOM_GRP_AIF1             22
  94 #define MADERA_DOM_GRP_AIF2             23
  95 #define MADERA_DOM_GRP_AIF3             24
  96 #define MADERA_DOM_GRP_AIF4             25
  97 #define MADERA_DOM_GRP_SLIMBUS          26
  98 #define MADERA_DOM_GRP_PWM              27
  99 #define MADERA_DOM_GRP_DFC              28
 100 #define MADERA_N_DOM_GRPS               29
 101
 102 #define MADERA_MAX_DAI                  11
 103 #define MADERA_MAX_ADSP                 7
 104
 105 #define MADERA_NUM_MIXER_INPUTS         146
 106
 107 struct madera;
 108 struct wm_adsp;
 109
 110 struct madera_voice_trigger_info {
 111         /** Which core triggered, 1-based (1 = DSP1, ...) */
 112         int core_num;
 113 };
 114
 115 struct madera_dai_priv {
 116         int clk;
 117         struct snd_pcm_hw_constraint_list constraint;
 118 };
 119
 120 struct madera_priv {
 121         struct wm_adsp adsp[MADERA_MAX_ADSP];
 122         struct madera *madera;
 123         struct device *dev;
 124         int sysclk;
 125         int asyncclk;
 126         int dspclk;
 127         struct madera_dai_priv dai[MADERA_MAX_DAI];
 128
 129         int num_inputs;
 130
 131         unsigned int in_pending;
 132
 133         unsigned int out_up_pending;
 134         unsigned int out_up_delay;
 135         unsigned int out_down_pending;
 136         unsigned int out_down_delay;
 137
 138         unsigned int adsp_rate_cache[MADERA_MAX_ADSP];
 139
 140         struct mutex rate_lock;
 141
 142         int tdm_width[MADERA_MAX_AIF];
 143         int tdm_slots[MADERA_MAX_AIF];
 144
 145         int domain_group_ref[MADERA_N_DOM_GRPS];
 146 };
 147
 148 struct madera_fll_cfg {
 149         int n;
 150         unsigned int theta;
 151         unsigned int lambda;
 152         int refdiv;
 153         int fratio;
 154         int gain;
 155         int alt_gain;
 156 };
 157
 158 struct madera_fll {
 159         struct madera *madera;
 160         int id;
 161         unsigned int base;
 162
 163         unsigned int fout;
 164
 165         int sync_src;
 166         unsigned int sync_freq;
 167
 168         int ref_src;
 169         unsigned int ref_freq;
 170         struct madera_fll_cfg ref_cfg;
 171 };
 172
 173 struct madera_enum {
 174         struct soc_enum mixer_enum;
 175         int val;
 176 };
 177
 178 extern const unsigned int madera_ana_tlv[];
 179 extern const unsigned int madera_eq_tlv[];
 180 extern const unsigned int madera_digital_tlv[];
 181 extern const unsigned int madera_noise_tlv[];
 182 extern const unsigned int madera_ng_tlv[];
 183
 184 extern const unsigned int madera_mixer_tlv[];
 185 extern const char * const madera_mixer_texts[MADERA_NUM_MIXER_INPUTS];
 186 extern unsigned int madera_mixer_values[MADERA_NUM_MIXER_INPUTS];
 187
 188 #define MADERA_GAINMUX_CONTROLS(name, base) \
 189         SOC_SINGLE_RANGE_TLV(name " Input Volume", base + 1,            \
 190                              MADERA_MIXER_VOL_SHIFT, 0x20, 0x50, 0,     \
 191                              madera_mixer_tlv)
 192
 193 #define MADERA_MIXER_CONTROLS(name, base) \
 194         SOC_SINGLE_RANGE_TLV(name " Input 1 Volume", base + 1,          \
 195                              MADERA_MIXER_VOL_SHIFT, 0x20, 0x50, 0,     \
 196                              madera_mixer_tlv),                 \
 197         SOC_SINGLE_RANGE_TLV(name " Input 2 Volume", base + 3,          \
 198                              MADERA_MIXER_VOL_SHIFT, 0x20, 0x50, 0,     \
 199                              madera_mixer_tlv),                 \
 200         SOC_SINGLE_RANGE_TLV(name " Input 3 Volume", base + 5,          \
 201                              MADERA_MIXER_VOL_SHIFT, 0x20, 0x50, 0,     \
 202                              madera_mixer_tlv),                 \
 203         SOC_SINGLE_RANGE_TLV(name " Input 4 Volume", base + 7,          \
 204                              MADERA_MIXER_VOL_SHIFT, 0x20, 0x50, 0,     \
 205                              madera_mixer_tlv)
 206
 207 #define MADERA_MUX_ENUM_DECL(name, reg) \
 208         SOC_VALUE_ENUM_SINGLE_AUTODISABLE_DECL( \
 209                 name, reg, 0, 0xff, madera_mixer_texts, madera_mixer_values)
 210
 211 #define MADERA_MUX_CTL_DECL(name) \
 212         const struct snd_kcontrol_new name##_mux =      \
 213                 SOC_DAPM_ENUM("Route", name##_enum)
 214
 215 #define MADERA_MUX_ENUMS(name, base_reg) \
 216         static MADERA_MUX_ENUM_DECL(name##_enum, base_reg);     \
 217         static MADERA_MUX_CTL_DECL(name)
 218
 219 #define MADERA_MIXER_ENUMS(name, base_reg) \
 220         MADERA_MUX_ENUMS(name##_in1, base_reg);     \
 221         MADERA_MUX_ENUMS(name##_in2, base_reg + 2); \
 222         MADERA_MUX_ENUMS(name##_in3, base_reg + 4); \
 223         MADERA_MUX_ENUMS(name##_in4, base_reg + 6)
 224
 225 #define MADERA_DSP_AUX_ENUMS(name, base_reg) \
 226         MADERA_MUX_ENUMS(name##_aux1, base_reg);        \
 227         MADERA_MUX_ENUMS(name##_aux2, base_reg + 8);    \
 228         MADERA_MUX_ENUMS(name##_aux3, base_reg + 16);   \
 229         MADERA_MUX_ENUMS(name##_aux4, base_reg + 24);   \
 230         MADERA_MUX_ENUMS(name##_aux5, base_reg + 32);   \
 231         MADERA_MUX_ENUMS(name##_aux6, base_reg + 40)
 232
 233 #define MADERA_MUX(name, ctrl) \
 234         SND_SOC_DAPM_MUX(name, SND_SOC_NOPM, 0, 0, ctrl)
 235
 236 #define MADERA_MUX_WIDGETS(name, name_str) \
 237         MADERA_MUX(name_str " Input 1", &name##_mux)
 238
 239 #define MADERA_MIXER_WIDGETS(name, name_str)    \
 240         MADERA_MUX(name_str " Input 1", &name##_in1_mux), \
 241         MADERA_MUX(name_str " Input 2", &name##_in2_mux), \
 242         MADERA_MUX(name_str " Input 3", &name##_in3_mux), \
 243         MADERA_MUX(name_str " Input 4", &name##_in4_mux), \
 244         SND_SOC_DAPM_MIXER(name_str " Mixer", SND_SOC_NOPM, 0, 0, NULL, 0)
 245
 246 #define MADERA_DSP_WIDGETS(name, name_str)                      \
 247         MADERA_MIXER_WIDGETS(name##L, name_str "L"),            \
 248         MADERA_MIXER_WIDGETS(name##R, name_str "R"),            \
 249         MADERA_MUX(name_str " Aux 1", &name##_aux1_mux),        \
 250         MADERA_MUX(name_str " Aux 2", &name##_aux2_mux),        \
 251         MADERA_MUX(name_str " Aux 3", &name##_aux3_mux),        \
 252         MADERA_MUX(name_str " Aux 4", &name##_aux4_mux),        \
 253         MADERA_MUX(name_str " Aux 5", &name##_aux5_mux),        \
 254         MADERA_MUX(name_str " Aux 6", &name##_aux6_mux)
 255
 256 #define MADERA_MUX_ROUTES(widget, name) \
 257         { widget, NULL, name " Input 1" }, \
 258         MADERA_MIXER_INPUT_ROUTES(name " Input 1")
 259
 260 #define MADERA_MIXER_ROUTES(widget, name)               \
 261         { widget, NULL, name " Mixer" },                \
 262         { name " Mixer", NULL, name " Input 1" },       \
 263         { name " Mixer", NULL, name " Input 2" },       \
 264         { name " Mixer", NULL, name " Input 3" },       \
 265         { name " Mixer", NULL, name " Input 4" },       \
 266         MADERA_MIXER_INPUT_ROUTES(name " Input 1"),     \
 267         MADERA_MIXER_INPUT_ROUTES(name " Input 2"),     \
 268         MADERA_MIXER_INPUT_ROUTES(name " Input 3"),     \
 269         MADERA_MIXER_INPUT_ROUTES(name " Input 4")
 270
 271 #define MADERA_DSP_ROUTES(name)                         \
 272         { name, NULL, name " Preloader"},               \
 273         { name " Preloader", NULL, "SYSCLK"},           \
 274         { name " Preloader", NULL, "DSPCLK"},           \
 275         { name, NULL, name " Aux 1" },                  \
 276         { name, NULL, name " Aux 2" },                  \
 277         { name, NULL, name " Aux 3" },                  \
 278         { name, NULL, name " Aux 4" },                  \
 279         { name, NULL, name " Aux 5" },                  \
 280         { name, NULL, name " Aux 6" },                  \
 281         MADERA_MIXER_INPUT_ROUTES(name " Aux 1"),       \
 282         MADERA_MIXER_INPUT_ROUTES(name " Aux 2"),       \
 283         MADERA_MIXER_INPUT_ROUTES(name " Aux 3"),       \
 284         MADERA_MIXER_INPUT_ROUTES(name " Aux 4"),       \
 285         MADERA_MIXER_INPUT_ROUTES(name " Aux 5"),       \
 286         MADERA_MIXER_INPUT_ROUTES(name " Aux 6"),       \
 287         MADERA_MIXER_ROUTES(name, name "L"),            \
 288         MADERA_MIXER_ROUTES(name, name "R")
 289
 290 #define MADERA_SAMPLE_RATE_CONTROL(name, domain) \
 291         SOC_ENUM(name, madera_sample_rate[(domain) - 2])
 292
 293 #define MADERA_RATE_ENUM(xname, xenum) \
 294 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,\
 295         .info = snd_soc_info_enum_double, \
 296         .get = snd_soc_get_enum_double, .put = madera_rate_put, \
 297         .private_value = (unsigned long)&xenum }
 298
 299 #define MADERA_EQ_CONTROL(xname, xbase)                         \
 300 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,     \
 301         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get,   \
 302         .put = madera_eq_coeff_put, .private_value =            \
 303         ((unsigned long)&(struct soc_bytes) { .base = xbase,    \
 304          .num_regs = 20, .mask = ~MADERA_EQ1_B1_MODE }) }
 305
 306 #define MADERA_LHPF_CONTROL(xname, xbase)                       \
 307 {       .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,     \
 308         .info = snd_soc_bytes_info, .get = snd_soc_bytes_get,   \
 309         .put = madera_lhpf_coeff_put, .private_value =          \
 310         ((unsigned long)&(struct soc_bytes) { .base = xbase,    \
 311          .num_regs = 1 }) }
 312
 313 #define MADERA_RATES SNDRV_PCM_RATE_KNOT
 314
 315 #define MADERA_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 316                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 317
 318 #define MADERA_OSR_ENUM_SIZE            5
 319 #define MADERA_SYNC_RATE_ENUM_SIZE      3
 320 #define MADERA_ASYNC_RATE_ENUM_SIZE     2
 321 #define MADERA_RATE_ENUM_SIZE \
 322                 (MADERA_SYNC_RATE_ENUM_SIZE + MADERA_ASYNC_RATE_ENUM_SIZE)
 323 #define MADERA_SAMPLE_RATE_ENUM_SIZE    16
 324 #define MADERA_DFC_TYPE_ENUM_SIZE       5
 325 #define MADERA_DFC_WIDTH_ENUM_SIZE      5
 326
 327 extern const struct snd_soc_dai_ops madera_dai_ops;
 328 extern const struct snd_soc_dai_ops madera_simple_dai_ops;
 329
 330 extern const struct snd_kcontrol_new madera_inmux[];
 331
 332 extern const char * const madera_rate_text[MADERA_RATE_ENUM_SIZE];
 333 extern const unsigned int madera_rate_val[MADERA_RATE_ENUM_SIZE];
 334 extern const char * const madera_sample_rate_text[MADERA_SAMPLE_RATE_ENUM_SIZE];
 335 extern const unsigned int madera_sample_rate_val[MADERA_SAMPLE_RATE_ENUM_SIZE];
 336 extern const char * const madera_dfc_width_text[MADERA_DFC_WIDTH_ENUM_SIZE];
 337 extern const unsigned int madera_dfc_width_val[MADERA_DFC_WIDTH_ENUM_SIZE];
 338 extern const char * const madera_dfc_type_text[MADERA_DFC_TYPE_ENUM_SIZE];
 339 extern const unsigned int madera_dfc_type_val[MADERA_DFC_TYPE_ENUM_SIZE];
 340
 341 extern const struct soc_enum madera_sample_rate[];
 342 extern const struct soc_enum madera_isrc_fsl[];
 343 extern const struct soc_enum madera_isrc_fsh[];
 344 extern const struct soc_enum madera_asrc1_rate[];
 345 extern const struct soc_enum madera_asrc2_rate[];
 346 extern const struct soc_enum madera_dfc_width[];
 347 extern const struct soc_enum madera_dfc_type[];
 348 extern const struct soc_enum madera_spdif_rate;
 349
 350 extern const struct soc_enum madera_in_vi_ramp;
 351 extern const struct soc_enum madera_in_vd_ramp;
 352
 353 extern const struct soc_enum madera_out_vi_ramp;
 354 extern const struct soc_enum madera_out_vd_ramp;
 355
 356 extern const struct soc_enum madera_lhpf1_mode;
 357 extern const struct soc_enum madera_lhpf2_mode;
 358 extern const struct soc_enum madera_lhpf3_mode;
 359 extern const struct soc_enum madera_lhpf4_mode;
 360
 361 extern const struct soc_enum madera_ng_hold;
 362 extern const struct soc_enum madera_in_hpf_cut_enum;
 363 extern const struct soc_enum madera_in_dmic_osr[];
 364
 365 extern const struct soc_enum madera_output_anc_src[];
 366 extern const struct soc_enum madera_anc_input_src[];
 367 extern const struct soc_enum madera_anc_ng_enum;
 368
 369 extern const struct snd_kcontrol_new madera_dsp_trigger_output_mux[];
 370 extern const struct snd_kcontrol_new madera_drc_activity_output_mux[];
 371
 372 extern const struct snd_kcontrol_new madera_adsp_rate_controls[];
 373
 374 const char *madera_sample_rate_val_to_name(unsigned int rate_val);
 375
 376 int madera_dfc_put(struct snd_kcontrol *kcontrol,
 377                    struct snd_ctl_elem_value *ucontrol);
 378
 379 int madera_lp_mode_put(struct snd_kcontrol *kcontrol,
 380                        struct snd_ctl_elem_value *ucontrol);
 381
 382 int madera_out1_demux_put(struct snd_kcontrol *kcontrol,
 383                           struct snd_ctl_elem_value *ucontrol);
 384
 385 int madera_dre_put(struct snd_kcontrol *kcontrol,
 386                    struct snd_ctl_elem_value *ucontrol);
 387
 388 int madera_rate_put(struct snd_kcontrol *kcontrol,
 389                     struct snd_ctl_elem_value *ucontrol);
 390
 391 int madera_eq_coeff_put(struct snd_kcontrol *kcontrol,
 392                         struct snd_ctl_elem_value *ucontrol);
 393 int madera_lhpf_coeff_put(struct snd_kcontrol *kcontrol,
 394                           struct snd_ctl_elem_value *ucontrol);
 395
 396 int madera_sysclk_ev(struct snd_soc_dapm_widget *w,
 397                      struct snd_kcontrol *kcontrol, int event);
 398 int madera_spk_ev(struct snd_soc_dapm_widget *w,
 399                   struct snd_kcontrol *kcontrol, int event);
 400 int madera_in_ev(struct snd_soc_dapm_widget *w,
 401                  struct snd_kcontrol *kcontrol, int event);
 402 int madera_out_ev(struct snd_soc_dapm_widget *w,
 403                   struct snd_kcontrol *kcontrol, int event);
 404 int madera_hp_ev(struct snd_soc_dapm_widget *w,
 405                  struct snd_kcontrol *kcontrol, int event);
 406 int madera_anc_ev(struct snd_soc_dapm_widget *w,
 407                   struct snd_kcontrol *kcontrol, int event);
 408 int madera_domain_clk_ev(struct snd_soc_dapm_widget *w,
 409                          struct snd_kcontrol *kcontrol,
 410                          int event);
 411
 412 int madera_adsp_rate_info(struct snd_kcontrol *kcontrol,
 413                           struct snd_ctl_elem_info *uinfo);
 414 int madera_adsp_rate_get(struct snd_kcontrol *kcontrol,
 415                          struct snd_ctl_elem_value *ucontrol);
 416 int madera_adsp_rate_put(struct snd_kcontrol *kcontrol,
 417                          struct snd_ctl_elem_value *ucontrol);
 418 int madera_set_adsp_clk(struct madera_priv *priv, int dsp_num,
 419                         unsigned int freq);
 420
 421 int madera_set_sysclk(struct snd_soc_codec *codec, int clk_id, int source,
 422                       unsigned int freq, int dir);
 423 int madera_get_legacy_dspclk_setting(struct madera *madera, unsigned int freq);
 424 void madera_spin_sysclk(struct madera_priv *priv);
 425
 426 int madera_init_fll(struct madera *madera, int id, int base,
 427                     struct madera_fll *fll);
 428 int madera_set_fll_refclk(struct madera_fll *fll, int source,
 429                           unsigned int Fref, unsigned int Fout);
 430 int madera_set_fll_syncclk(struct madera_fll *fll, int source,
 431                            unsigned int Fref, unsigned int Fout);
 432 int madera_set_fll_ao_refclk(struct madera_fll *fll, int source,
 433                              unsigned int fin, unsigned int fout);
 434
 435 int madera_core_init(struct madera_priv *priv);
 436 int madera_core_destroy(struct madera_priv *priv);
 437 int madera_init_overheat(struct madera_priv *priv);
 438 int madera_free_overheat(struct madera_priv *priv);
 439 int madera_init_inputs(struct snd_soc_codec *codec,
 440                        const char * const *dmic_inputs,
 441                        int n_dmic_inputs,
 442                        const char * const *dmic_refs,
 443                        int n_dmic_refs);
 444 int madera_init_outputs(struct snd_soc_codec *codec, int n_mono_routes);
 445 int madera_init_bus_error_irq(struct madera_priv *priv, int dsp_num,
 446                               irq_handler_t handler);
 447 void madera_destroy_bus_error_irq(struct madera_priv *priv, int dsp_num);
 448
 449 int madera_init_dai(struct madera_priv *priv, int dai);
 450
 451 int madera_set_output_mode(struct snd_soc_codec *codec, int output, bool diff);
 452
 453 /* Following functions are for use by machine drivers */
 454 static inline int madera_register_notifier(struct snd_soc_codec *codec,
 455                                            struct notifier_block *nb)
 456 {
 457         struct madera *madera = dev_get_drvdata(codec->dev->parent);
 458
 459         return blocking_notifier_chain_register(&madera->notifier, nb);
 460 }
 461
 462 static inline int madera_unregister_notifier(struct snd_soc_codec *codec,
 463                                              struct notifier_block *nb)
 464 {
 465         struct madera *madera = dev_get_drvdata(codec->dev->parent);
 466
 467         return blocking_notifier_chain_unregister(&madera->notifier, nb);
 468 }
 469
 470 #endif