sound/soc/codecs/msm8916-wcd-digital.c

   1 /* Copyright (c) 2016, The Linux Foundation. All rights reserved.
   2  *
   3  * This program is free software; you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License version 2 and
   5  * only version 2 as published by the Free Software Foundation.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/err.h>
  15 #include <linux/kernel.h>
  16 #include <linux/delay.h>
  17 #include <linux/types.h>
  18 #include <linux/clk.h>
  19 #include <linux/of.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/regmap.h>
  22 #include <linux/mfd/syscon.h>
  23 #include <sound/soc.h>
  24 #include <sound/pcm.h>
  25 #include <sound/pcm_params.h>
  26 #include <sound/tlv.h>
  27
  28 #define LPASS_CDC_CLK_RX_RESET_CTL              (0x000)
  29 #define LPASS_CDC_CLK_TX_RESET_B1_CTL           (0x004)
  30 #define CLK_RX_RESET_B1_CTL_TX1_RESET_MASK      BIT(0)
  31 #define CLK_RX_RESET_B1_CTL_TX2_RESET_MASK      BIT(1)
  32 #define LPASS_CDC_CLK_DMIC_B1_CTL               (0x008)
  33 #define DMIC_B1_CTL_DMIC0_CLK_SEL_MASK          GENMASK(3, 1)
  34 #define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV2          (0x0 << 1)
  35 #define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV3          (0x1 << 1)
  36 #define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV4          (0x2 << 1)
  37 #define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV6          (0x3 << 1)
  38 #define DMIC_B1_CTL_DMIC0_CLK_SEL_DIV16         (0x4 << 1)
  39 #define DMIC_B1_CTL_DMIC0_CLK_EN_MASK           BIT(0)
  40 #define DMIC_B1_CTL_DMIC0_CLK_EN_ENABLE         BIT(0)
  41
  42 #define LPASS_CDC_CLK_RX_I2S_CTL                (0x00C)
  43 #define RX_I2S_CTL_RX_I2S_MODE_MASK             BIT(5)
  44 #define RX_I2S_CTL_RX_I2S_MODE_16               BIT(5)
  45 #define RX_I2S_CTL_RX_I2S_MODE_32               0
  46 #define RX_I2S_CTL_RX_I2S_FS_RATE_MASK          GENMASK(2, 0)
  47 #define RX_I2S_CTL_RX_I2S_FS_RATE_F_8_KHZ       0x0
  48 #define RX_I2S_CTL_RX_I2S_FS_RATE_F_16_KHZ      0x1
  49 #define RX_I2S_CTL_RX_I2S_FS_RATE_F_32_KHZ      0x2
  50 #define RX_I2S_CTL_RX_I2S_FS_RATE_F_48_KHZ      0x3
  51 #define RX_I2S_CTL_RX_I2S_FS_RATE_F_96_KHZ      0x4
  52 #define RX_I2S_CTL_RX_I2S_FS_RATE_F_192_KHZ     0x5
  53 #define LPASS_CDC_CLK_TX_I2S_CTL                (0x010)
  54 #define TX_I2S_CTL_TX_I2S_MODE_MASK             BIT(5)
  55 #define TX_I2S_CTL_TX_I2S_MODE_16               BIT(5)
  56 #define TX_I2S_CTL_TX_I2S_MODE_32               0
  57 #define TX_I2S_CTL_TX_I2S_FS_RATE_MASK          GENMASK(2, 0)
  58 #define TX_I2S_CTL_TX_I2S_FS_RATE_F_8_KHZ       0x0
  59 #define TX_I2S_CTL_TX_I2S_FS_RATE_F_16_KHZ      0x1
  60 #define TX_I2S_CTL_TX_I2S_FS_RATE_F_32_KHZ      0x2
  61 #define TX_I2S_CTL_TX_I2S_FS_RATE_F_48_KHZ      0x3
  62 #define TX_I2S_CTL_TX_I2S_FS_RATE_F_96_KHZ      0x4
  63 #define TX_I2S_CTL_TX_I2S_FS_RATE_F_192_KHZ     0x5
  64
  65 #define LPASS_CDC_CLK_OTHR_RESET_B1_CTL         (0x014)
  66 #define LPASS_CDC_CLK_TX_CLK_EN_B1_CTL          (0x018)
  67 #define LPASS_CDC_CLK_OTHR_CTL                  (0x01C)
  68 #define LPASS_CDC_CLK_RX_B1_CTL                 (0x020)
  69 #define LPASS_CDC_CLK_MCLK_CTL                  (0x024)
  70 #define MCLK_CTL_MCLK_EN_MASK                   BIT(0)
  71 #define MCLK_CTL_MCLK_EN_ENABLE                 BIT(0)
  72 #define MCLK_CTL_MCLK_EN_DISABLE                0
  73 #define LPASS_CDC_CLK_PDM_CTL                   (0x028)
  74 #define LPASS_CDC_CLK_PDM_CTL_PDM_EN_MASK       BIT(0)
  75 #define LPASS_CDC_CLK_PDM_CTL_PDM_EN            BIT(0)
  76 #define LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_MASK  BIT(1)
  77 #define LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_FB    BIT(1)
  78 #define LPASS_CDC_CLK_PDM_CTL_PDM_CLK_PDM_CLK   0
  79
  80 #define LPASS_CDC_CLK_SD_CTL                    (0x02C)
  81 #define LPASS_CDC_RX1_B1_CTL                    (0x040)
  82 #define LPASS_CDC_RX2_B1_CTL                    (0x060)
  83 #define LPASS_CDC_RX3_B1_CTL                    (0x080)
  84 #define LPASS_CDC_RX1_B2_CTL                    (0x044)
  85 #define LPASS_CDC_RX2_B2_CTL                    (0x064)
  86 #define LPASS_CDC_RX3_B2_CTL                    (0x084)
  87 #define LPASS_CDC_RX1_B3_CTL                    (0x048)
  88 #define LPASS_CDC_RX2_B3_CTL                    (0x068)
  89 #define LPASS_CDC_RX3_B3_CTL                    (0x088)
  90 #define LPASS_CDC_RX1_B4_CTL                    (0x04C)
  91 #define LPASS_CDC_RX2_B4_CTL                    (0x06C)
  92 #define LPASS_CDC_RX3_B4_CTL                    (0x08C)
  93 #define LPASS_CDC_RX1_B5_CTL                    (0x050)
  94 #define LPASS_CDC_RX2_B5_CTL                    (0x070)
  95 #define LPASS_CDC_RX3_B5_CTL                    (0x090)
  96 #define LPASS_CDC_RX1_B6_CTL                    (0x054)
  97 #define RXn_B6_CTL_MUTE_MASK                    BIT(0)
  98 #define RXn_B6_CTL_MUTE_ENABLE                  BIT(0)
  99 #define RXn_B6_CTL_MUTE_DISABLE                 0
 100 #define LPASS_CDC_RX2_B6_CTL                    (0x074)
 101 #define LPASS_CDC_RX3_B6_CTL                    (0x094)
 102 #define LPASS_CDC_RX1_VOL_CTL_B1_CTL            (0x058)
 103 #define LPASS_CDC_RX2_VOL_CTL_B1_CTL            (0x078)
 104 #define LPASS_CDC_RX3_VOL_CTL_B1_CTL            (0x098)
 105 #define LPASS_CDC_RX1_VOL_CTL_B2_CTL            (0x05C)
 106 #define LPASS_CDC_RX2_VOL_CTL_B2_CTL            (0x07C)
 107 #define LPASS_CDC_RX3_VOL_CTL_B2_CTL            (0x09C)
 108 #define LPASS_CDC_TOP_GAIN_UPDATE               (0x0A0)
 109 #define LPASS_CDC_TOP_CTL                       (0x0A4)
 110 #define TOP_CTL_DIG_MCLK_FREQ_MASK              BIT(0)
 111 #define TOP_CTL_DIG_MCLK_FREQ_F_12_288MHZ       0
 112 #define TOP_CTL_DIG_MCLK_FREQ_F_9_6MHZ          BIT(0)
 113
 114 #define LPASS_CDC_DEBUG_DESER1_CTL              (0x0E0)
 115 #define LPASS_CDC_DEBUG_DESER2_CTL              (0x0E4)
 116 #define LPASS_CDC_DEBUG_B1_CTL_CFG              (0x0E8)
 117 #define LPASS_CDC_DEBUG_B2_CTL_CFG              (0x0EC)
 118 #define LPASS_CDC_DEBUG_B3_CTL_CFG              (0x0F0)
 119 #define LPASS_CDC_IIR1_GAIN_B1_CTL              (0x100)
 120 #define LPASS_CDC_IIR2_GAIN_B1_CTL              (0x140)
 121 #define LPASS_CDC_IIR1_GAIN_B2_CTL              (0x104)
 122 #define LPASS_CDC_IIR2_GAIN_B2_CTL              (0x144)
 123 #define LPASS_CDC_IIR1_GAIN_B3_CTL              (0x108)
 124 #define LPASS_CDC_IIR2_GAIN_B3_CTL              (0x148)
 125 #define LPASS_CDC_IIR1_GAIN_B4_CTL              (0x10C)
 126 #define LPASS_CDC_IIR2_GAIN_B4_CTL              (0x14C)
 127 #define LPASS_CDC_IIR1_GAIN_B5_CTL              (0x110)
 128 #define LPASS_CDC_IIR2_GAIN_B5_CTL              (0x150)
 129 #define LPASS_CDC_IIR1_GAIN_B6_CTL              (0x114)
 130 #define LPASS_CDC_IIR2_GAIN_B6_CTL              (0x154)
 131 #define LPASS_CDC_IIR1_GAIN_B7_CTL              (0x118)
 132 #define LPASS_CDC_IIR2_GAIN_B7_CTL              (0x158)
 133 #define LPASS_CDC_IIR1_GAIN_B8_CTL              (0x11C)
 134 #define LPASS_CDC_IIR2_GAIN_B8_CTL              (0x15C)
 135 #define LPASS_CDC_IIR1_CTL                      (0x120)
 136 #define LPASS_CDC_IIR2_CTL                      (0x160)
 137 #define LPASS_CDC_IIR1_GAIN_TIMER_CTL           (0x124)
 138 #define LPASS_CDC_IIR2_GAIN_TIMER_CTL           (0x164)
 139 #define LPASS_CDC_IIR1_COEF_B1_CTL              (0x128)
 140 #define LPASS_CDC_IIR2_COEF_B1_CTL              (0x168)
 141 #define LPASS_CDC_IIR1_COEF_B2_CTL              (0x12C)
 142 #define LPASS_CDC_IIR2_COEF_B2_CTL              (0x16C)
 143 #define LPASS_CDC_CONN_RX1_B1_CTL               (0x180)
 144 #define LPASS_CDC_CONN_RX1_B2_CTL               (0x184)
 145 #define LPASS_CDC_CONN_RX1_B3_CTL               (0x188)
 146 #define LPASS_CDC_CONN_RX2_B1_CTL               (0x18C)
 147 #define LPASS_CDC_CONN_RX2_B2_CTL               (0x190)
 148 #define LPASS_CDC_CONN_RX2_B3_CTL               (0x194)
 149 #define LPASS_CDC_CONN_RX3_B1_CTL               (0x198)
 150 #define LPASS_CDC_CONN_RX3_B2_CTL               (0x19C)
 151 #define LPASS_CDC_CONN_TX_B1_CTL                (0x1A0)
 152 #define LPASS_CDC_CONN_EQ1_B1_CTL               (0x1A8)
 153 #define LPASS_CDC_CONN_EQ1_B2_CTL               (0x1AC)
 154 #define LPASS_CDC_CONN_EQ1_B3_CTL               (0x1B0)
 155 #define LPASS_CDC_CONN_EQ1_B4_CTL               (0x1B4)
 156 #define LPASS_CDC_CONN_EQ2_B1_CTL               (0x1B8)
 157 #define LPASS_CDC_CONN_EQ2_B2_CTL               (0x1BC)
 158 #define LPASS_CDC_CONN_EQ2_B3_CTL               (0x1C0)
 159 #define LPASS_CDC_CONN_EQ2_B4_CTL               (0x1C4)
 160 #define LPASS_CDC_CONN_TX_I2S_SD1_CTL           (0x1C8)
 161 #define LPASS_CDC_TX1_VOL_CTL_TIMER             (0x280)
 162 #define LPASS_CDC_TX2_VOL_CTL_TIMER             (0x2A0)
 163 #define LPASS_CDC_TX1_VOL_CTL_GAIN              (0x284)
 164 #define LPASS_CDC_TX2_VOL_CTL_GAIN              (0x2A4)
 165 #define LPASS_CDC_TX1_VOL_CTL_CFG               (0x288)
 166 #define TX_VOL_CTL_CFG_MUTE_EN_MASK             BIT(0)
 167 #define TX_VOL_CTL_CFG_MUTE_EN_ENABLE           BIT(0)
 168
 169 #define LPASS_CDC_TX2_VOL_CTL_CFG               (0x2A8)
 170 #define LPASS_CDC_TX1_MUX_CTL                   (0x28C)
 171 #define TX_MUX_CTL_CUT_OFF_FREQ_MASK            GENMASK(5, 4)
 172 #define TX_MUX_CTL_CUT_OFF_FREQ_SHIFT           4
 173 #define TX_MUX_CTL_CF_NEG_3DB_4HZ               (0x0 << 4)
 174 #define TX_MUX_CTL_CF_NEG_3DB_75HZ              (0x1 << 4)
 175 #define TX_MUX_CTL_CF_NEG_3DB_150HZ             (0x2 << 4)
 176 #define TX_MUX_CTL_HPF_BP_SEL_MASK              BIT(3)
 177 #define TX_MUX_CTL_HPF_BP_SEL_BYPASS            BIT(3)
 178 #define TX_MUX_CTL_HPF_BP_SEL_NO_BYPASS         0
 179
 180 #define LPASS_CDC_TX2_MUX_CTL                   (0x2AC)
 181 #define LPASS_CDC_TX1_CLK_FS_CTL                (0x290)
 182 #define LPASS_CDC_TX2_CLK_FS_CTL                (0x2B0)
 183 #define LPASS_CDC_TX1_DMIC_CTL                  (0x294)
 184 #define LPASS_CDC_TX2_DMIC_CTL                  (0x2B4)
 185 #define TXN_DMIC_CTL_CLK_SEL_MASK               GENMASK(2, 0)
 186 #define TXN_DMIC_CTL_CLK_SEL_DIV2               0x0
 187 #define TXN_DMIC_CTL_CLK_SEL_DIV3               0x1
 188 #define TXN_DMIC_CTL_CLK_SEL_DIV4               0x2
 189 #define TXN_DMIC_CTL_CLK_SEL_DIV6               0x3
 190 #define TXN_DMIC_CTL_CLK_SEL_DIV16              0x4
 191
 192 #define MSM8916_WCD_DIGITAL_RATES (SNDRV_PCM_RATE_8000 | \
 193                                    SNDRV_PCM_RATE_16000 | \
 194                                    SNDRV_PCM_RATE_32000 | \
 195                                    SNDRV_PCM_RATE_48000)
 196 #define MSM8916_WCD_DIGITAL_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
 197                                      SNDRV_PCM_FMTBIT_S24_LE)
 198
 199 struct msm8916_wcd_digital_priv {
 200         struct clk *ahbclk, *mclk;
 201 };
 202
 203 static const unsigned long rx_gain_reg[] = {
 204         LPASS_CDC_RX1_VOL_CTL_B2_CTL,
 205         LPASS_CDC_RX2_VOL_CTL_B2_CTL,
 206         LPASS_CDC_RX3_VOL_CTL_B2_CTL,
 207 };
 208
 209 static const unsigned long tx_gain_reg[] = {
 210         LPASS_CDC_TX1_VOL_CTL_GAIN,
 211         LPASS_CDC_TX2_VOL_CTL_GAIN,
 212 };
 213
 214 static const char *const rx_mix1_text[] = {
 215         "ZERO", "IIR1", "IIR2", "RX1", "RX2", "RX3"
 216 };
 217
 218 static const char *const dec_mux_text[] = {
 219         "ZERO", "ADC1", "ADC2", "ADC3", "DMIC1", "DMIC2"
 220 };
 221 static const char *const rx_mix2_text[] = { "ZERO", "IIR1", "IIR2" };
 222 static const char *const adc2_mux_text[] = { "ZERO", "INP2", "INP3" };
 223
 224 /* RX1 MIX1 */
 225 static const struct soc_enum rx_mix1_inp_enum[] = {
 226         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX1_B1_CTL, 0, 6, rx_mix1_text),
 227         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX1_B1_CTL, 3, 6, rx_mix1_text),
 228         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX1_B2_CTL, 0, 6, rx_mix1_text),
 229 };
 230
 231 /* RX1 MIX2 */
 232 static const struct soc_enum rx_mix2_inp1_chain_enum = SOC_ENUM_SINGLE(
 233                                 LPASS_CDC_CONN_RX1_B3_CTL, 0, 3, rx_mix2_text);
 234
 235 /* RX2 MIX1 */
 236 static const struct soc_enum rx2_mix1_inp_enum[] = {
 237         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX2_B1_CTL, 0, 6, rx_mix1_text),
 238         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX2_B1_CTL, 3, 6, rx_mix1_text),
 239         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX2_B1_CTL, 0, 6, rx_mix1_text),
 240 };
 241
 242 /* RX2 MIX2 */
 243 static const struct soc_enum rx2_mix2_inp1_chain_enum = SOC_ENUM_SINGLE(
 244                                 LPASS_CDC_CONN_RX2_B3_CTL, 0, 3, rx_mix2_text);
 245
 246 /* RX3 MIX1 */
 247 static const struct soc_enum rx3_mix1_inp_enum[] = {
 248         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX3_B1_CTL, 0, 6, rx_mix1_text),
 249         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX3_B1_CTL, 3, 6, rx_mix1_text),
 250         SOC_ENUM_SINGLE(LPASS_CDC_CONN_RX3_B1_CTL, 0, 6, rx_mix1_text),
 251 };
 252
 253 /* DEC */
 254 static const struct soc_enum dec1_mux_enum = SOC_ENUM_SINGLE(
 255                                 LPASS_CDC_CONN_TX_B1_CTL, 0, 6, dec_mux_text);
 256 static const struct soc_enum dec2_mux_enum = SOC_ENUM_SINGLE(
 257                                 LPASS_CDC_CONN_TX_B1_CTL, 3, 6, dec_mux_text);
 258
 259 /* RDAC2 MUX */
 260 static const struct snd_kcontrol_new dec1_mux = SOC_DAPM_ENUM(
 261                                 "DEC1 MUX Mux", dec1_mux_enum);
 262 static const struct snd_kcontrol_new dec2_mux = SOC_DAPM_ENUM(
 263                                 "DEC2 MUX Mux", dec2_mux_enum);
 264 static const struct snd_kcontrol_new rx_mix1_inp1_mux = SOC_DAPM_ENUM(
 265                                 "RX1 MIX1 INP1 Mux", rx_mix1_inp_enum[0]);
 266 static const struct snd_kcontrol_new rx_mix1_inp2_mux = SOC_DAPM_ENUM(
 267                                 "RX1 MIX1 INP2 Mux", rx_mix1_inp_enum[1]);
 268 static const struct snd_kcontrol_new rx_mix1_inp3_mux = SOC_DAPM_ENUM(
 269                                 "RX1 MIX1 INP3 Mux", rx_mix1_inp_enum[2]);
 270 static const struct snd_kcontrol_new rx2_mix1_inp1_mux = SOC_DAPM_ENUM(
 271                                 "RX2 MIX1 INP1 Mux", rx2_mix1_inp_enum[0]);
 272 static const struct snd_kcontrol_new rx2_mix1_inp2_mux = SOC_DAPM_ENUM(
 273                                 "RX2 MIX1 INP2 Mux", rx2_mix1_inp_enum[1]);
 274 static const struct snd_kcontrol_new rx2_mix1_inp3_mux = SOC_DAPM_ENUM(
 275                                 "RX2 MIX1 INP3 Mux", rx2_mix1_inp_enum[2]);
 276 static const struct snd_kcontrol_new rx3_mix1_inp1_mux = SOC_DAPM_ENUM(
 277                                 "RX3 MIX1 INP1 Mux", rx3_mix1_inp_enum[0]);
 278 static const struct snd_kcontrol_new rx3_mix1_inp2_mux = SOC_DAPM_ENUM(
 279                                 "RX3 MIX1 INP2 Mux", rx3_mix1_inp_enum[1]);
 280 static const struct snd_kcontrol_new rx3_mix1_inp3_mux = SOC_DAPM_ENUM(
 281                                 "RX3 MIX1 INP3 Mux", rx3_mix1_inp_enum[2]);
 282
 283 /* Digital Gain control -38.4 dB to +38.4 dB in 0.3 dB steps */
 284 static const DECLARE_TLV_DB_SCALE(digital_gain, -3840, 30, 0);
 285
 286 /* Cutoff Freq for High Pass Filter at -3dB */
 287 static const char * const hpf_cutoff_text[] = {
 288         "4Hz", "75Hz", "150Hz",
 289 };
 290
 291 static SOC_ENUM_SINGLE_DECL(tx1_hpf_cutoff_enum, LPASS_CDC_TX1_MUX_CTL, 4,
 292                             hpf_cutoff_text);
 293 static SOC_ENUM_SINGLE_DECL(tx2_hpf_cutoff_enum, LPASS_CDC_TX2_MUX_CTL, 4,
 294                             hpf_cutoff_text);
 295
 296 /* cut off for dc blocker inside rx chain */
 297 static const char * const dc_blocker_cutoff_text[] = {
 298         "4Hz", "75Hz", "150Hz",
 299 };
 300
 301 static SOC_ENUM_SINGLE_DECL(rx1_dcb_cutoff_enum, LPASS_CDC_RX1_B4_CTL, 0,
 302                             dc_blocker_cutoff_text);
 303 static SOC_ENUM_SINGLE_DECL(rx2_dcb_cutoff_enum, LPASS_CDC_RX2_B4_CTL, 0,
 304                             dc_blocker_cutoff_text);
 305 static SOC_ENUM_SINGLE_DECL(rx3_dcb_cutoff_enum, LPASS_CDC_RX3_B4_CTL, 0,
 306                             dc_blocker_cutoff_text);
 307
 308 static const struct snd_kcontrol_new msm8916_wcd_digital_snd_controls[] = {
 309         SOC_SINGLE_S8_TLV("RX1 Digital Volume", LPASS_CDC_RX1_VOL_CTL_B2_CTL,
 310                           -128, 127, digital_gain),
 311         SOC_SINGLE_S8_TLV("RX2 Digital Volume", LPASS_CDC_RX2_VOL_CTL_B2_CTL,
 312                           -128, 127, digital_gain),
 313         SOC_SINGLE_S8_TLV("RX3 Digital Volume", LPASS_CDC_RX3_VOL_CTL_B2_CTL,
 314                           -128, 127, digital_gain),
 315         SOC_SINGLE_S8_TLV("TX1 Digital Volume", LPASS_CDC_TX1_VOL_CTL_GAIN,
 316                           -128, 127, digital_gain),
 317         SOC_SINGLE_S8_TLV("TX2 Digital Volume", LPASS_CDC_TX2_VOL_CTL_GAIN,
 318                           -128, 127, digital_gain),
 319         SOC_ENUM("TX1 HPF Cutoff", tx1_hpf_cutoff_enum),
 320         SOC_ENUM("TX2 HPF Cutoff", tx2_hpf_cutoff_enum),
 321         SOC_SINGLE("TX1 HPF Switch", LPASS_CDC_TX1_MUX_CTL, 3, 1, 0),
 322         SOC_SINGLE("TX2 HPF Switch", LPASS_CDC_TX2_MUX_CTL, 3, 1, 0),
 323         SOC_ENUM("RX1 DCB Cutoff", rx1_dcb_cutoff_enum),
 324         SOC_ENUM("RX2 DCB Cutoff", rx2_dcb_cutoff_enum),
 325         SOC_ENUM("RX3 DCB Cutoff", rx3_dcb_cutoff_enum),
 326         SOC_SINGLE("RX1 DCB Switch", LPASS_CDC_RX1_B5_CTL, 2, 1, 0),
 327         SOC_SINGLE("RX2 DCB Switch", LPASS_CDC_RX2_B5_CTL, 2, 1, 0),
 328         SOC_SINGLE("RX3 DCB Switch", LPASS_CDC_RX3_B5_CTL, 2, 1, 0),
 329         SOC_SINGLE("RX1 Mute Switch", LPASS_CDC_RX1_B6_CTL, 0, 1, 0),
 330         SOC_SINGLE("RX2 Mute Switch", LPASS_CDC_RX2_B6_CTL, 0, 1, 0),
 331         SOC_SINGLE("RX3 Mute Switch", LPASS_CDC_RX3_B6_CTL, 0, 1, 0),
 332 };
 333
 334 static int msm8916_wcd_digital_enable_interpolator(
 335                                                 struct snd_soc_dapm_widget *w,
 336                                                 struct snd_kcontrol *kcontrol,
 337                                                 int event)
 338 {
 339         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 340
 341         switch (event) {
 342         case SND_SOC_DAPM_POST_PMU:
 343                 /* apply the digital gain after the interpolator is enabled */
 344                 usleep_range(10000, 10100);
 345                 snd_soc_write(codec, rx_gain_reg[w->shift],
 346                               snd_soc_read(codec, rx_gain_reg[w->shift]));
 347                 break;
 348         }
 349         return 0;
 350 }
 351
 352 static int msm8916_wcd_digital_enable_dec(struct snd_soc_dapm_widget *w,
 353                                           struct snd_kcontrol *kcontrol,
 354                                           int event)
 355 {
 356         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 357         unsigned int decimator = w->shift + 1;
 358         u16 dec_reset_reg, tx_vol_ctl_reg, tx_mux_ctl_reg;
 359         u8 dec_hpf_cut_of_freq;
 360
 361         dec_reset_reg = LPASS_CDC_CLK_TX_RESET_B1_CTL;
 362         tx_vol_ctl_reg = LPASS_CDC_TX1_VOL_CTL_CFG + 32 * (decimator - 1);
 363         tx_mux_ctl_reg = LPASS_CDC_TX1_MUX_CTL + 32 * (decimator - 1);
 364
 365         switch (event) {
 366         case SND_SOC_DAPM_PRE_PMU:
 367                 /* Enable TX digital mute */
 368                 snd_soc_update_bits(codec, tx_vol_ctl_reg,
 369                                     TX_VOL_CTL_CFG_MUTE_EN_MASK,
 370                                     TX_VOL_CTL_CFG_MUTE_EN_ENABLE);
 371                 dec_hpf_cut_of_freq = snd_soc_read(codec, tx_mux_ctl_reg) &
 372                                         TX_MUX_CTL_CUT_OFF_FREQ_MASK;
 373                 dec_hpf_cut_of_freq >>= TX_MUX_CTL_CUT_OFF_FREQ_SHIFT;
 374                 if (dec_hpf_cut_of_freq != TX_MUX_CTL_CF_NEG_3DB_150HZ) {
 375                         /* set cut of freq to CF_MIN_3DB_150HZ (0x1) */
 376                         snd_soc_update_bits(codec, tx_mux_ctl_reg,
 377                                             TX_MUX_CTL_CUT_OFF_FREQ_MASK,
 378                                             TX_MUX_CTL_CF_NEG_3DB_150HZ);
 379                 }
 380                 break;
 381         case SND_SOC_DAPM_POST_PMU:
 382                 /* enable HPF */
 383                 snd_soc_update_bits(codec, tx_mux_ctl_reg,
 384                                     TX_MUX_CTL_HPF_BP_SEL_MASK,
 385                                     TX_MUX_CTL_HPF_BP_SEL_NO_BYPASS);
 386                 /* apply the digital gain after the decimator is enabled */
 387                 snd_soc_write(codec, tx_gain_reg[w->shift],
 388                               snd_soc_read(codec, tx_gain_reg[w->shift]));
 389                 snd_soc_update_bits(codec, tx_vol_ctl_reg,
 390                                     TX_VOL_CTL_CFG_MUTE_EN_MASK, 0);
 391                 break;
 392         case SND_SOC_DAPM_PRE_PMD:
 393                 snd_soc_update_bits(codec, tx_vol_ctl_reg,
 394                                     TX_VOL_CTL_CFG_MUTE_EN_MASK,
 395                                     TX_VOL_CTL_CFG_MUTE_EN_ENABLE);
 396                 snd_soc_update_bits(codec, tx_mux_ctl_reg,
 397                                     TX_MUX_CTL_HPF_BP_SEL_MASK,
 398                                     TX_MUX_CTL_HPF_BP_SEL_BYPASS);
 399                 break;
 400         case SND_SOC_DAPM_POST_PMD:
 401                 snd_soc_update_bits(codec, dec_reset_reg, 1 << w->shift,
 402                                     1 << w->shift);
 403                 snd_soc_update_bits(codec, dec_reset_reg, 1 << w->shift, 0x0);
 404                 snd_soc_update_bits(codec, tx_mux_ctl_reg,
 405                                     TX_MUX_CTL_HPF_BP_SEL_MASK,
 406                                     TX_MUX_CTL_HPF_BP_SEL_BYPASS);
 407                 snd_soc_update_bits(codec, tx_vol_ctl_reg,
 408                                     TX_VOL_CTL_CFG_MUTE_EN_MASK, 0);
 409                 break;
 410         }
 411
 412         return 0;
 413 }
 414
 415 static int msm8916_wcd_digital_enable_dmic(struct snd_soc_dapm_widget *w,
 416                                            struct snd_kcontrol *kcontrol,
 417                                            int event)
 418 {
 419         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 420         unsigned int dmic;
 421         int ret;
 422         /* get dmic number out of widget name */
 423         char *dmic_num = strpbrk(w->name, "12");
 424
 425         if (dmic_num == NULL) {
 426                 dev_err(codec->dev, "Invalid DMIC\n");
 427                 return -EINVAL;
 428         }
 429         ret = kstrtouint(dmic_num, 10, &dmic);
 430         if (ret < 0 || dmic > 2) {
 431                 dev_err(codec->dev, "Invalid DMIC line on the codec\n");
 432                 return -EINVAL;
 433         }
 434
 435         switch (event) {
 436         case SND_SOC_DAPM_PRE_PMU:
 437                 snd_soc_update_bits(codec, LPASS_CDC_CLK_DMIC_B1_CTL,
 438                                     DMIC_B1_CTL_DMIC0_CLK_SEL_MASK,
 439                                     DMIC_B1_CTL_DMIC0_CLK_SEL_DIV3);
 440                 switch (dmic) {
 441                 case 1:
 442                         snd_soc_update_bits(codec, LPASS_CDC_TX1_DMIC_CTL,
 443                                             TXN_DMIC_CTL_CLK_SEL_MASK,
 444                                             TXN_DMIC_CTL_CLK_SEL_DIV3);
 445                         break;
 446                 case 2:
 447                         snd_soc_update_bits(codec, LPASS_CDC_TX2_DMIC_CTL,
 448                                             TXN_DMIC_CTL_CLK_SEL_MASK,
 449                                             TXN_DMIC_CTL_CLK_SEL_DIV3);
 450                         break;
 451                 }
 452                 break;
 453         }
 454
 455         return 0;
 456 }
 457
 458 static const struct snd_soc_dapm_widget msm8916_wcd_digital_dapm_widgets[] = {
 459         /*RX stuff */
 460         SND_SOC_DAPM_AIF_IN("I2S RX1", NULL, 0, SND_SOC_NOPM, 0, 0),
 461         SND_SOC_DAPM_AIF_IN("I2S RX2", NULL, 0, SND_SOC_NOPM, 0, 0),
 462         SND_SOC_DAPM_AIF_IN("I2S RX3", NULL, 0, SND_SOC_NOPM, 0, 0),
 463
 464         SND_SOC_DAPM_OUTPUT("PDM_RX1"),
 465         SND_SOC_DAPM_OUTPUT("PDM_RX2"),
 466         SND_SOC_DAPM_OUTPUT("PDM_RX3"),
 467
 468         SND_SOC_DAPM_INPUT("LPASS_PDM_TX"),
 469
 470         SND_SOC_DAPM_MIXER("RX1 MIX1", SND_SOC_NOPM, 0, 0, NULL, 0),
 471         SND_SOC_DAPM_MIXER("RX2 MIX1", SND_SOC_NOPM, 0, 0, NULL, 0),
 472         SND_SOC_DAPM_MIXER("RX3 MIX1", SND_SOC_NOPM, 0, 0, NULL, 0),
 473
 474         /* Interpolator */
 475         SND_SOC_DAPM_MIXER_E("RX1 INT", LPASS_CDC_CLK_RX_B1_CTL, 0, 0, NULL,
 476                              0, msm8916_wcd_digital_enable_interpolator,
 477                              SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 478         SND_SOC_DAPM_MIXER_E("RX2 INT", LPASS_CDC_CLK_RX_B1_CTL, 1, 0, NULL,
 479                              0, msm8916_wcd_digital_enable_interpolator,
 480                              SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 481         SND_SOC_DAPM_MIXER_E("RX3 INT", LPASS_CDC_CLK_RX_B1_CTL, 2, 0, NULL,
 482                              0, msm8916_wcd_digital_enable_interpolator,
 483                              SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
 484         SND_SOC_DAPM_MUX("RX1 MIX1 INP1", SND_SOC_NOPM, 0, 0,
 485                          &rx_mix1_inp1_mux),
 486         SND_SOC_DAPM_MUX("RX1 MIX1 INP2", SND_SOC_NOPM, 0, 0,
 487                          &rx_mix1_inp2_mux),
 488         SND_SOC_DAPM_MUX("RX1 MIX1 INP3", SND_SOC_NOPM, 0, 0,
 489                          &rx_mix1_inp3_mux),
 490         SND_SOC_DAPM_MUX("RX2 MIX1 INP1", SND_SOC_NOPM, 0, 0,
 491                          &rx2_mix1_inp1_mux),
 492         SND_SOC_DAPM_MUX("RX2 MIX1 INP2", SND_SOC_NOPM, 0, 0,
 493                          &rx2_mix1_inp2_mux),
 494         SND_SOC_DAPM_MUX("RX2 MIX1 INP3", SND_SOC_NOPM, 0, 0,
 495                          &rx2_mix1_inp3_mux),
 496         SND_SOC_DAPM_MUX("RX3 MIX1 INP1", SND_SOC_NOPM, 0, 0,
 497                          &rx3_mix1_inp1_mux),
 498         SND_SOC_DAPM_MUX("RX3 MIX1 INP2", SND_SOC_NOPM, 0, 0,
 499                          &rx3_mix1_inp2_mux),
 500         SND_SOC_DAPM_MUX("RX3 MIX1 INP3", SND_SOC_NOPM, 0, 0,
 501                          &rx3_mix1_inp3_mux),
 502
 503         /* TX */
 504         SND_SOC_DAPM_MIXER("ADC1", SND_SOC_NOPM, 0, 0, NULL, 0),
 505         SND_SOC_DAPM_MIXER("ADC2", SND_SOC_NOPM, 0, 0, NULL, 0),
 506         SND_SOC_DAPM_MIXER("ADC3", SND_SOC_NOPM, 0, 0, NULL, 0),
 507
 508         SND_SOC_DAPM_MUX_E("DEC1 MUX", LPASS_CDC_CLK_TX_CLK_EN_B1_CTL, 0, 0,
 509                            &dec1_mux, msm8916_wcd_digital_enable_dec,
 510                            SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
 511                            SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
 512         SND_SOC_DAPM_MUX_E("DEC2 MUX", LPASS_CDC_CLK_TX_CLK_EN_B1_CTL, 1, 0,
 513                            &dec2_mux, msm8916_wcd_digital_enable_dec,
 514                            SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
 515                            SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
 516         SND_SOC_DAPM_AIF_OUT("I2S TX1", NULL, 0, SND_SOC_NOPM, 0, 0),
 517         SND_SOC_DAPM_AIF_OUT("I2S TX2", NULL, 0, SND_SOC_NOPM, 0, 0),
 518         SND_SOC_DAPM_AIF_OUT("I2S TX3", NULL, 0, SND_SOC_NOPM, 0, 0),
 519
 520         /* Digital Mic Inputs */
 521         SND_SOC_DAPM_ADC_E("DMIC1", NULL, SND_SOC_NOPM, 0, 0,
 522                            msm8916_wcd_digital_enable_dmic,
 523                            SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 524         SND_SOC_DAPM_ADC_E("DMIC2", NULL, SND_SOC_NOPM, 0, 0,
 525                            msm8916_wcd_digital_enable_dmic,
 526                            SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 527         SND_SOC_DAPM_SUPPLY("DMIC_CLK", LPASS_CDC_CLK_DMIC_B1_CTL, 0, 0,
 528                             NULL, 0),
 529         SND_SOC_DAPM_SUPPLY("RX_I2S_CLK", LPASS_CDC_CLK_RX_I2S_CTL,
 530                             4, 0, NULL, 0),
 531         SND_SOC_DAPM_SUPPLY("TX_I2S_CLK", LPASS_CDC_CLK_TX_I2S_CTL, 4, 0,
 532                             NULL, 0),
 533
 534         SND_SOC_DAPM_SUPPLY("MCLK", SND_SOC_NOPM, 0, 0, NULL, 0),
 535         SND_SOC_DAPM_SUPPLY("PDM_CLK", LPASS_CDC_CLK_PDM_CTL, 0, 0, NULL, 0),
 536         /* Connectivity Clock */
 537         SND_SOC_DAPM_SUPPLY_S("CDC_CONN", -2, LPASS_CDC_CLK_OTHR_CTL, 2, 0,
 538                               NULL, 0),
 539
 540 };
 541
 542 static int msm8916_wcd_digital_get_clks(struct platform_device *pdev,
 543                                         struct msm8916_wcd_digital_priv *priv)
 544 {
 545         struct device *dev = &pdev->dev;
 546
 547         priv->ahbclk = devm_clk_get(dev, "ahbix-clk");
 548         if (IS_ERR(priv->ahbclk)) {
 549                 dev_err(dev, "failed to get ahbix clk\n");
 550                 return PTR_ERR(priv->ahbclk);
 551         }
 552
 553         priv->mclk = devm_clk_get(dev, "mclk");
 554         if (IS_ERR(priv->mclk)) {
 555                 dev_err(dev, "failed to get mclk\n");
 556                 return PTR_ERR(priv->mclk);
 557         }
 558
 559         return 0;
 560 }
 561
 562 static int msm8916_wcd_digital_codec_probe(struct snd_soc_codec *codec)
 563 {
 564         struct msm8916_wcd_digital_priv *priv = dev_get_drvdata(codec->dev);
 565
 566         snd_soc_codec_set_drvdata(codec, priv);
 567
 568         return 0;
 569 }
 570
 571 static int msm8916_wcd_digital_hw_params(struct snd_pcm_substream *substream,
 572                                          struct snd_pcm_hw_params *params,
 573                                          struct snd_soc_dai *dai)
 574 {
 575         u8 tx_fs_rate;
 576         u8 rx_fs_rate;
 577
 578         switch (params_rate(params)) {
 579         case 8000:
 580                 tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_8_KHZ;
 581                 rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_8_KHZ;
 582                 break;
 583         case 16000:
 584                 tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_16_KHZ;
 585                 rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_16_KHZ;
 586                 break;
 587         case 32000:
 588                 tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_32_KHZ;
 589                 rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_32_KHZ;
 590                 break;
 591         case 48000:
 592                 tx_fs_rate = TX_I2S_CTL_TX_I2S_FS_RATE_F_48_KHZ;
 593                 rx_fs_rate = RX_I2S_CTL_RX_I2S_FS_RATE_F_48_KHZ;
 594                 break;
 595         default:
 596                 dev_err(dai->codec->dev, "Invalid sampling rate %d\n",
 597                         params_rate(params));
 598                 return -EINVAL;
 599         }
 600
 601         switch (substream->stream) {
 602         case SNDRV_PCM_STREAM_CAPTURE:
 603                 snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_TX_I2S_CTL,
 604                                     TX_I2S_CTL_TX_I2S_FS_RATE_MASK, tx_fs_rate);
 605                 break;
 606         case SNDRV_PCM_STREAM_PLAYBACK:
 607                 snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_RX_I2S_CTL,
 608                                     RX_I2S_CTL_RX_I2S_FS_RATE_MASK, rx_fs_rate);
 609                 break;
 610         default:
 611                 return -EINVAL;
 612         }
 613
 614         switch (params_format(params)) {
 615         case SNDRV_PCM_FORMAT_S16_LE:
 616                 snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_TX_I2S_CTL,
 617                                     TX_I2S_CTL_TX_I2S_MODE_MASK,
 618                                     TX_I2S_CTL_TX_I2S_MODE_16);
 619                 snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_RX_I2S_CTL,
 620                                     RX_I2S_CTL_RX_I2S_MODE_MASK,
 621                                     RX_I2S_CTL_RX_I2S_MODE_16);
 622                 break;
 623         case SNDRV_PCM_FORMAT_S24_LE:
 624                 snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_TX_I2S_CTL,
 625                                     TX_I2S_CTL_TX_I2S_MODE_MASK,
 626                                     TX_I2S_CTL_TX_I2S_MODE_32);
 627                 snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_RX_I2S_CTL,
 628                                     RX_I2S_CTL_RX_I2S_MODE_MASK,
 629                                     RX_I2S_CTL_RX_I2S_MODE_32);
 630                 break;
 631         default:
 632                 dev_err(dai->dev, "%s: wrong format selected\n", __func__);
 633                 return -EINVAL;
 634         }
 635
 636         return 0;
 637 }
 638
 639 static const struct snd_soc_dapm_route msm8916_wcd_digital_audio_map[] = {
 640
 641         {"I2S RX1",  NULL, "AIF1 Playback"},
 642         {"I2S RX2",  NULL, "AIF1 Playback"},
 643         {"I2S RX3",  NULL, "AIF1 Playback"},
 644
 645         {"AIF1 Capture", NULL, "I2S TX1"},
 646         {"AIF1 Capture", NULL, "I2S TX2"},
 647         {"AIF1 Capture", NULL, "I2S TX3"},
 648
 649         /* Decimator Inputs */
 650         {"DEC1 MUX", "DMIC1", "DMIC1"},
 651         {"DEC1 MUX", "DMIC2", "DMIC2"},
 652         {"DEC1 MUX", "ADC1", "ADC1"},
 653         {"DEC1 MUX", "ADC2", "ADC2"},
 654         {"DEC1 MUX", "ADC3", "ADC3"},
 655         {"DEC1 MUX", NULL, "CDC_CONN"},
 656
 657         {"DEC2 MUX", "DMIC1", "DMIC1"},
 658         {"DEC2 MUX", "DMIC2", "DMIC2"},
 659         {"DEC2 MUX", "ADC1", "ADC1"},
 660         {"DEC2 MUX", "ADC2", "ADC2"},
 661         {"DEC2 MUX", "ADC3", "ADC3"},
 662         {"DEC2 MUX", NULL, "CDC_CONN"},
 663
 664         {"DMIC1", NULL, "DMIC_CLK"},
 665         {"DMIC2", NULL, "DMIC_CLK"},
 666
 667         {"I2S TX1", NULL, "DEC1 MUX"},
 668         {"I2S TX2", NULL, "DEC2 MUX"},
 669
 670         {"I2S TX1", NULL, "TX_I2S_CLK"},
 671         {"I2S TX2", NULL, "TX_I2S_CLK"},
 672
 673         {"TX_I2S_CLK", NULL, "MCLK"},
 674         {"TX_I2S_CLK", NULL, "PDM_CLK"},
 675
 676         {"ADC1", NULL, "LPASS_PDM_TX"},
 677         {"ADC2", NULL, "LPASS_PDM_TX"},
 678         {"ADC3", NULL, "LPASS_PDM_TX"},
 679
 680         {"I2S RX1", NULL, "RX_I2S_CLK"},
 681         {"I2S RX2", NULL, "RX_I2S_CLK"},
 682         {"I2S RX3", NULL, "RX_I2S_CLK"},
 683
 684         {"RX_I2S_CLK", NULL, "PDM_CLK"},
 685         {"RX_I2S_CLK", NULL, "MCLK"},
 686         {"RX_I2S_CLK", NULL, "CDC_CONN"},
 687
 688         /* RX1 PATH.. */
 689         {"PDM_RX1", NULL, "RX1 INT"},
 690         {"RX1 INT", NULL, "RX1 MIX1"},
 691
 692         {"RX1 MIX1", NULL, "RX1 MIX1 INP1"},
 693         {"RX1 MIX1", NULL, "RX1 MIX1 INP2"},
 694         {"RX1 MIX1", NULL, "RX1 MIX1 INP3"},
 695
 696         {"RX1 MIX1 INP1", "RX1", "I2S RX1"},
 697         {"RX1 MIX1 INP1", "RX2", "I2S RX2"},
 698         {"RX1 MIX1 INP1", "RX3", "I2S RX3"},
 699
 700         {"RX1 MIX1 INP2", "RX1", "I2S RX1"},
 701         {"RX1 MIX1 INP2", "RX2", "I2S RX2"},
 702         {"RX1 MIX1 INP2", "RX3", "I2S RX3"},
 703
 704         {"RX1 MIX1 INP3", "RX1", "I2S RX1"},
 705         {"RX1 MIX1 INP3", "RX2", "I2S RX2"},
 706         {"RX1 MIX1 INP3", "RX3", "I2S RX3"},
 707
 708         /* RX2 PATH */
 709         {"PDM_RX2", NULL, "RX2 INT"},
 710         {"RX2 INT", NULL, "RX2 MIX1"},
 711
 712         {"RX2 MIX1", NULL, "RX2 MIX1 INP1"},
 713         {"RX2 MIX1", NULL, "RX2 MIX1 INP2"},
 714         {"RX2 MIX1", NULL, "RX2 MIX1 INP3"},
 715
 716         {"RX2 MIX1 INP1", "RX1", "I2S RX1"},
 717         {"RX2 MIX1 INP1", "RX2", "I2S RX2"},
 718         {"RX2 MIX1 INP1", "RX3", "I2S RX3"},
 719
 720         {"RX2 MIX1 INP2", "RX1", "I2S RX1"},
 721         {"RX2 MIX1 INP2", "RX2", "I2S RX2"},
 722         {"RX2 MIX1 INP2", "RX3", "I2S RX3"},
 723
 724         {"RX2 MIX1 INP3", "RX1", "I2S RX1"},
 725         {"RX2 MIX1 INP3", "RX2", "I2S RX2"},
 726         {"RX2 MIX1 INP3", "RX3", "I2S RX3"},
 727
 728         /* RX3 PATH */
 729         {"PDM_RX3", NULL, "RX3 INT"},
 730         {"RX3 INT", NULL, "RX3 MIX1"},
 731
 732         {"RX3 MIX1", NULL, "RX3 MIX1 INP1"},
 733         {"RX3 MIX1", NULL, "RX3 MIX1 INP2"},
 734         {"RX3 MIX1", NULL, "RX3 MIX1 INP3"},
 735
 736         {"RX3 MIX1 INP1", "RX1", "I2S RX1"},
 737         {"RX3 MIX1 INP1", "RX2", "I2S RX2"},
 738         {"RX3 MIX1 INP1", "RX3", "I2S RX3"},
 739
 740         {"RX3 MIX1 INP2", "RX1", "I2S RX1"},
 741         {"RX3 MIX1 INP2", "RX2", "I2S RX2"},
 742         {"RX3 MIX1 INP2", "RX3", "I2S RX3"},
 743
 744         {"RX3 MIX1 INP3", "RX1", "I2S RX1"},
 745         {"RX3 MIX1 INP3", "RX2", "I2S RX2"},
 746         {"RX3 MIX1 INP3", "RX3", "I2S RX3"},
 747
 748 };
 749
 750 static int msm8916_wcd_digital_startup(struct snd_pcm_substream *substream,
 751                                        struct snd_soc_dai *dai)
 752 {
 753         struct snd_soc_codec *codec = dai->codec;
 754         struct msm8916_wcd_digital_priv *msm8916_wcd;
 755         unsigned long mclk_rate;
 756
 757         msm8916_wcd = snd_soc_codec_get_drvdata(codec);
 758         snd_soc_update_bits(codec, LPASS_CDC_CLK_MCLK_CTL,
 759                             MCLK_CTL_MCLK_EN_MASK,
 760                             MCLK_CTL_MCLK_EN_ENABLE);
 761         snd_soc_update_bits(codec, LPASS_CDC_CLK_PDM_CTL,
 762                             LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_MASK,
 763                             LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_FB);
 764
 765         mclk_rate = clk_get_rate(msm8916_wcd->mclk);
 766         switch (mclk_rate) {
 767         case 12288000:
 768                 snd_soc_update_bits(codec, LPASS_CDC_TOP_CTL,
 769                                     TOP_CTL_DIG_MCLK_FREQ_MASK,
 770                                     TOP_CTL_DIG_MCLK_FREQ_F_12_288MHZ);
 771                 break;
 772         case 9600000:
 773                 snd_soc_update_bits(codec, LPASS_CDC_TOP_CTL,
 774                                     TOP_CTL_DIG_MCLK_FREQ_MASK,
 775                                     TOP_CTL_DIG_MCLK_FREQ_F_9_6MHZ);
 776                 break;
 777         default:
 778                 dev_err(codec->dev, "Invalid mclk rate %ld\n", mclk_rate);
 779                 break;
 780         }
 781         return 0;
 782 }
 783
 784 static void msm8916_wcd_digital_shutdown(struct snd_pcm_substream *substream,
 785                                          struct snd_soc_dai *dai)
 786 {
 787         snd_soc_update_bits(dai->codec, LPASS_CDC_CLK_PDM_CTL,
 788                             LPASS_CDC_CLK_PDM_CTL_PDM_CLK_SEL_MASK, 0);
 789 }
 790
 791 static struct snd_soc_dai_ops msm8916_wcd_digital_dai_ops = {
 792         .startup = msm8916_wcd_digital_startup,
 793         .shutdown = msm8916_wcd_digital_shutdown,
 794         .hw_params = msm8916_wcd_digital_hw_params,
 795 };
 796
 797 static struct snd_soc_dai_driver msm8916_wcd_digital_dai[] = {
 798         [0] = {
 799                .name = "msm8916_wcd_digital_i2s_rx1",
 800                .id = 0,
 801                .playback = {
 802                             .stream_name = "AIF1 Playback",
 803                             .rates = MSM8916_WCD_DIGITAL_RATES,
 804                             .formats = MSM8916_WCD_DIGITAL_FORMATS,
 805                             .channels_min = 1,
 806                             .channels_max = 3,
 807                             },
 808                .ops = &msm8916_wcd_digital_dai_ops,
 809                },
 810         [1] = {
 811                .name = "msm8916_wcd_digital_i2s_tx1",
 812                .id = 1,
 813                .capture = {
 814                            .stream_name = "AIF1 Capture",
 815                            .rates = MSM8916_WCD_DIGITAL_RATES,
 816                            .formats = MSM8916_WCD_DIGITAL_FORMATS,
 817                            .channels_min = 1,
 818                            .channels_max = 4,
 819                            },
 820                .ops = &msm8916_wcd_digital_dai_ops,
 821                },
 822 };
 823
 824 static struct snd_soc_codec_driver msm8916_wcd_digital = {
 825         .probe = msm8916_wcd_digital_codec_probe,
 826         .component_driver = {
 827                 .controls = msm8916_wcd_digital_snd_controls,
 828                 .num_controls = ARRAY_SIZE(msm8916_wcd_digital_snd_controls),
 829                 .dapm_widgets = msm8916_wcd_digital_dapm_widgets,
 830                 .num_dapm_widgets =
 831                                  ARRAY_SIZE(msm8916_wcd_digital_dapm_widgets),
 832                 .dapm_routes = msm8916_wcd_digital_audio_map,
 833                 .num_dapm_routes = ARRAY_SIZE(msm8916_wcd_digital_audio_map),
 834         },
 835 };
 836
 837 static const struct regmap_config msm8916_codec_regmap_config = {
 838         .reg_bits = 32,
 839         .reg_stride = 4,
 840         .val_bits = 32,
 841         .max_register = LPASS_CDC_TX2_DMIC_CTL,
 842         .cache_type = REGCACHE_FLAT,
 843 };
 844
 845 static int msm8916_wcd_digital_probe(struct platform_device *pdev)
 846 {
 847         struct msm8916_wcd_digital_priv *priv;
 848         struct device *dev = &pdev->dev;
 849         void __iomem *base;
 850         struct resource *mem_res;
 851         struct regmap *digital_map;
 852         int ret;
 853
 854         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 855         if (!priv)
 856                 return -ENOMEM;
 857
 858         mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 859         base = devm_ioremap_resource(&pdev->dev, mem_res);
 860         if (IS_ERR(base))
 861                 return PTR_ERR(base);
 862
 863         digital_map =
 864             devm_regmap_init_mmio(&pdev->dev, base,
 865                                   &msm8916_codec_regmap_config);
 866         if (IS_ERR(digital_map))
 867                 return PTR_ERR(digital_map);
 868
 869         ret = msm8916_wcd_digital_get_clks(pdev, priv);
 870         if (ret < 0)
 871                 return ret;
 872
 873         ret = clk_prepare_enable(priv->ahbclk);
 874         if (ret < 0) {
 875                 dev_err(dev, "failed to enable ahbclk %d\n", ret);
 876                 return ret;
 877         }
 878
 879         ret = clk_prepare_enable(priv->mclk);
 880         if (ret < 0) {
 881                 dev_err(dev, "failed to enable mclk %d\n", ret);
 882                 return ret;
 883         }
 884
 885         dev_set_drvdata(dev, priv);
 886
 887         return snd_soc_register_codec(dev, &msm8916_wcd_digital,
 888                                       msm8916_wcd_digital_dai,
 889                                       ARRAY_SIZE(msm8916_wcd_digital_dai));
 890 }
 891
 892 static int msm8916_wcd_digital_remove(struct platform_device *pdev)
 893 {
 894         struct msm8916_wcd_digital_priv *priv = dev_get_drvdata(&pdev->dev);
 895
 896         snd_soc_unregister_codec(&pdev->dev);
 897         clk_disable_unprepare(priv->mclk);
 898         clk_disable_unprepare(priv->ahbclk);
 899
 900         return 0;
 901 }
 902
 903 static const struct of_device_id msm8916_wcd_digital_match_table[] = {
 904         { .compatible = "qcom,msm8916-wcd-digital-codec" },
 905         { }
 906 };
 907
 908 MODULE_DEVICE_TABLE(of, msm8916_wcd_digital_match_table);
 909
 910 static struct platform_driver msm8916_wcd_digital_driver = {
 911         .driver = {
 912                    .name = "msm8916-wcd-digital-codec",
 913                    .of_match_table = msm8916_wcd_digital_match_table,
 914         },
 915         .probe = msm8916_wcd_digital_probe,
 916         .remove = msm8916_wcd_digital_remove,
 917 };
 918
 919 module_platform_driver(msm8916_wcd_digital_driver);
 920
 921 MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org>");
 922 MODULE_DESCRIPTION("MSM8916 WCD Digital Codec driver");
 923 MODULE_LICENSE("GPL v2");