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0007 #include <linux/clk.h>
0008 #include <linux/device.h>
0009 #include <linux/io.h>
0010 #include <linux/module.h>
0011 #include <linux/of.h>
0012 #include <linux/of_device.h>
0013 #include <linux/platform_device.h>
0014 #include <linux/pm_runtime.h>
0015 #include <linux/regmap.h>
0016 #include <sound/core.h>
0017 #include <sound/pcm.h>
0018 #include <sound/pcm_params.h>
0019 #include <sound/soc.h>
0020
0021 #include "tegra210_mixer.h"
0022 #include "tegra_cif.h"
0023
0024 #define MIXER_REG(reg, id) ((reg) + ((id) * TEGRA210_MIXER_REG_STRIDE))
0025 #define MIXER_REG_BASE(reg) ((reg) % TEGRA210_MIXER_REG_STRIDE)
0026
0027 #define MIXER_GAIN_CFG_RAM_ADDR(id) \
0028 (TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0 + \
0029 ((id) * TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE))
0030
0031 #define MIXER_RX_REG_DEFAULTS(id) \
0032 { MIXER_REG(TEGRA210_MIXER_RX1_CIF_CTRL, id), 0x00007700}, \
0033 { MIXER_REG(TEGRA210_MIXER_RX1_CTRL, id), 0x00010823}, \
0034 { MIXER_REG(TEGRA210_MIXER_RX1_PEAK_CTRL, id), 0x000012c0}
0035
0036 #define MIXER_TX_REG_DEFAULTS(id) \
0037 { MIXER_REG(TEGRA210_MIXER_TX1_INT_MASK, (id)), 0x00000001}, \
0038 { MIXER_REG(TEGRA210_MIXER_TX1_CIF_CTRL, (id)), 0x00007700}
0039
0040 #define REG_DURATION_PARAM(reg, i) ((reg) + NUM_GAIN_POLY_COEFFS + 1 + (i))
0041
0042 static const struct reg_default tegra210_mixer_reg_defaults[] = {
0043
0044 MIXER_RX_REG_DEFAULTS(0),
0045 MIXER_RX_REG_DEFAULTS(1),
0046 MIXER_RX_REG_DEFAULTS(2),
0047 MIXER_RX_REG_DEFAULTS(3),
0048 MIXER_RX_REG_DEFAULTS(4),
0049 MIXER_RX_REG_DEFAULTS(5),
0050 MIXER_RX_REG_DEFAULTS(6),
0051 MIXER_RX_REG_DEFAULTS(7),
0052 MIXER_RX_REG_DEFAULTS(8),
0053 MIXER_RX_REG_DEFAULTS(9),
0054
0055 MIXER_TX_REG_DEFAULTS(0),
0056 MIXER_TX_REG_DEFAULTS(1),
0057 MIXER_TX_REG_DEFAULTS(2),
0058 MIXER_TX_REG_DEFAULTS(3),
0059 MIXER_TX_REG_DEFAULTS(4),
0060
0061 { TEGRA210_MIXER_CG, 0x00000001},
0062 { TEGRA210_MIXER_GAIN_CFG_RAM_CTRL, 0x00004000},
0063 { TEGRA210_MIXER_PEAKM_RAM_CTRL, 0x00004000},
0064 { TEGRA210_MIXER_ENABLE, 0x1 },
0065 };
0066
0067
0068 static const struct tegra210_mixer_gain_params gain_params = {
0069
0070 { 0, 0, 0, 0, 0, 0, 0, 0x1000000, 0 },
0071
0072 0x10000,
0073
0074 { 0, 0, 0x400, 0x8000000 },
0075 };
0076
0077 static int __maybe_unused tegra210_mixer_runtime_suspend(struct device *dev)
0078 {
0079 struct tegra210_mixer *mixer = dev_get_drvdata(dev);
0080
0081 regcache_cache_only(mixer->regmap, true);
0082 regcache_mark_dirty(mixer->regmap);
0083
0084 return 0;
0085 }
0086
0087 static int __maybe_unused tegra210_mixer_runtime_resume(struct device *dev)
0088 {
0089 struct tegra210_mixer *mixer = dev_get_drvdata(dev);
0090
0091 regcache_cache_only(mixer->regmap, false);
0092 regcache_sync(mixer->regmap);
0093
0094 return 0;
0095 }
0096
0097 static int tegra210_mixer_write_ram(struct tegra210_mixer *mixer,
0098 unsigned int addr,
0099 unsigned int coef)
0100 {
0101 unsigned int reg, val;
0102 int err;
0103
0104
0105 err = regmap_read_poll_timeout(mixer->regmap,
0106 TEGRA210_MIXER_GAIN_CFG_RAM_CTRL,
0107 val, !(val & 0x80000000), 10, 10000);
0108 if (err < 0)
0109 return err;
0110
0111 reg = (addr << TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_SHIFT) &
0112 TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_MASK;
0113 reg |= TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_INIT_EN;
0114 reg |= TEGRA210_MIXER_GAIN_CFG_RAM_RW_WRITE;
0115 reg |= TEGRA210_MIXER_GAIN_CFG_RAM_SEQ_ACCESS_EN;
0116
0117 regmap_write(mixer->regmap,
0118 TEGRA210_MIXER_GAIN_CFG_RAM_CTRL,
0119 reg);
0120 regmap_write(mixer->regmap,
0121 TEGRA210_MIXER_GAIN_CFG_RAM_DATA,
0122 coef);
0123
0124 return 0;
0125 }
0126
0127 static int tegra210_mixer_configure_gain(struct snd_soc_component *cmpnt,
0128 unsigned int id, bool instant_gain)
0129 {
0130 struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
0131 unsigned int reg = MIXER_GAIN_CFG_RAM_ADDR(id);
0132 int err, i;
0133
0134 pm_runtime_get_sync(cmpnt->dev);
0135
0136
0137 for (i = 0; i < NUM_GAIN_POLY_COEFFS; i++) {
0138 err = tegra210_mixer_write_ram(mixer, reg + i,
0139 gain_params.poly_coeff[i]);
0140
0141 if (err < 0)
0142 goto rpm_put;
0143 }
0144
0145
0146 err = tegra210_mixer_write_ram(mixer, reg + NUM_GAIN_POLY_COEFFS,
0147 mixer->gain_value[id]);
0148 if (err < 0)
0149 goto rpm_put;
0150
0151
0152 for (i = 0; i < NUM_DURATION_PARMS; i++) {
0153 int val;
0154
0155 if (instant_gain)
0156 val = 1;
0157 else
0158 val = gain_params.duration[i];
0159
0160 err = tegra210_mixer_write_ram(mixer,
0161 REG_DURATION_PARAM(reg, i),
0162 val);
0163 if (err < 0)
0164 goto rpm_put;
0165 }
0166
0167
0168 err = tegra210_mixer_write_ram(mixer, reg + REG_CFG_DONE_TRIGGER,
0169 VAL_CFG_DONE_TRIGGER);
0170
0171 rpm_put:
0172 pm_runtime_put(cmpnt->dev);
0173
0174 return err;
0175 }
0176
0177 static int tegra210_mixer_get_gain(struct snd_kcontrol *kcontrol,
0178 struct snd_ctl_elem_value *ucontrol)
0179 {
0180 struct soc_mixer_control *mc =
0181 (struct soc_mixer_control *)kcontrol->private_value;
0182 struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
0183 struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
0184 unsigned int reg = mc->reg;
0185 unsigned int i;
0186
0187 i = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) /
0188 TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE;
0189
0190 ucontrol->value.integer.value[0] = mixer->gain_value[i];
0191
0192 return 0;
0193 }
0194
0195 static int tegra210_mixer_apply_gain(struct snd_kcontrol *kcontrol,
0196 struct snd_ctl_elem_value *ucontrol,
0197 bool instant_gain)
0198 {
0199 struct soc_mixer_control *mc =
0200 (struct soc_mixer_control *)kcontrol->private_value;
0201 struct snd_soc_component *cmpnt = snd_soc_kcontrol_component(kcontrol);
0202 struct tegra210_mixer *mixer = snd_soc_component_get_drvdata(cmpnt);
0203 unsigned int reg = mc->reg, id;
0204 int err;
0205
0206
0207 id = (reg - TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_0) /
0208 TEGRA210_MIXER_GAIN_CFG_RAM_ADDR_STRIDE;
0209
0210 if (mixer->gain_value[id] == ucontrol->value.integer.value[0])
0211 return 0;
0212
0213 mixer->gain_value[id] = ucontrol->value.integer.value[0];
0214
0215 err = tegra210_mixer_configure_gain(cmpnt, id, instant_gain);
0216 if (err) {
0217 dev_err(cmpnt->dev, "Failed to apply gain\n");
0218 return err;
0219 }
0220
0221 return 1;
0222 }
0223
0224 static int tegra210_mixer_put_gain(struct snd_kcontrol *kcontrol,
0225 struct snd_ctl_elem_value *ucontrol)
0226 {
0227 return tegra210_mixer_apply_gain(kcontrol, ucontrol, false);
0228 }
0229
0230 static int tegra210_mixer_put_instant_gain(struct snd_kcontrol *kcontrol,
0231 struct snd_ctl_elem_value *ucontrol)
0232 {
0233 return tegra210_mixer_apply_gain(kcontrol, ucontrol, true);
0234 }
0235
0236 static int tegra210_mixer_set_audio_cif(struct tegra210_mixer *mixer,
0237 struct snd_pcm_hw_params *params,
0238 unsigned int reg,
0239 unsigned int id)
0240 {
0241 unsigned int channels, audio_bits;
0242 struct tegra_cif_conf cif_conf;
0243
0244 memset(&cif_conf, 0, sizeof(struct tegra_cif_conf));
0245
0246 channels = params_channels(params);
0247
0248 switch (params_format(params)) {
0249 case SNDRV_PCM_FORMAT_S16_LE:
0250 audio_bits = TEGRA_ACIF_BITS_16;
0251 break;
0252 case SNDRV_PCM_FORMAT_S32_LE:
0253 audio_bits = TEGRA_ACIF_BITS_32;
0254 break;
0255 default:
0256 return -EINVAL;
0257 }
0258
0259 cif_conf.audio_ch = channels;
0260 cif_conf.client_ch = channels;
0261 cif_conf.audio_bits = audio_bits;
0262 cif_conf.client_bits = audio_bits;
0263
0264 tegra_set_cif(mixer->regmap,
0265 reg + (id * TEGRA210_MIXER_REG_STRIDE),
0266 &cif_conf);
0267
0268 return 0;
0269 }
0270
0271 static int tegra210_mixer_in_hw_params(struct snd_pcm_substream *substream,
0272 struct snd_pcm_hw_params *params,
0273 struct snd_soc_dai *dai)
0274 {
0275 struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai);
0276 int err;
0277
0278 err = tegra210_mixer_set_audio_cif(mixer, params,
0279 TEGRA210_MIXER_RX1_CIF_CTRL,
0280 dai->id);
0281 if (err < 0)
0282 return err;
0283
0284 return tegra210_mixer_configure_gain(dai->component, dai->id, false);
0285 }
0286
0287 static int tegra210_mixer_out_hw_params(struct snd_pcm_substream *substream,
0288 struct snd_pcm_hw_params *params,
0289 struct snd_soc_dai *dai)
0290 {
0291 struct tegra210_mixer *mixer = snd_soc_dai_get_drvdata(dai);
0292
0293 return tegra210_mixer_set_audio_cif(mixer, params,
0294 TEGRA210_MIXER_TX1_CIF_CTRL,
0295 dai->id - TEGRA210_MIXER_RX_MAX);
0296 }
0297
0298 static const struct snd_soc_dai_ops tegra210_mixer_out_dai_ops = {
0299 .hw_params = tegra210_mixer_out_hw_params,
0300 };
0301
0302 static const struct snd_soc_dai_ops tegra210_mixer_in_dai_ops = {
0303 .hw_params = tegra210_mixer_in_hw_params,
0304 };
0305
0306 #define IN_DAI(id) \
0307 { \
0308 .name = "MIXER-RX-CIF"#id, \
0309 .playback = { \
0310 .stream_name = "RX" #id "-CIF-Playback",\
0311 .channels_min = 1, \
0312 .channels_max = 8, \
0313 .rates = SNDRV_PCM_RATE_8000_192000, \
0314 .formats = SNDRV_PCM_FMTBIT_S8 | \
0315 SNDRV_PCM_FMTBIT_S16_LE | \
0316 SNDRV_PCM_FMTBIT_S32_LE, \
0317 }, \
0318 .capture = { \
0319 .stream_name = "RX" #id "-CIF-Capture", \
0320 .channels_min = 1, \
0321 .channels_max = 8, \
0322 .rates = SNDRV_PCM_RATE_8000_192000, \
0323 .formats = SNDRV_PCM_FMTBIT_S8 | \
0324 SNDRV_PCM_FMTBIT_S16_LE | \
0325 SNDRV_PCM_FMTBIT_S32_LE, \
0326 }, \
0327 .ops = &tegra210_mixer_in_dai_ops, \
0328 }
0329
0330 #define OUT_DAI(id) \
0331 { \
0332 .name = "MIXER-TX-CIF" #id, \
0333 .playback = { \
0334 .stream_name = "TX" #id "-CIF-Playback",\
0335 .channels_min = 1, \
0336 .channels_max = 8, \
0337 .rates = SNDRV_PCM_RATE_8000_192000, \
0338 .formats = SNDRV_PCM_FMTBIT_S8 | \
0339 SNDRV_PCM_FMTBIT_S16_LE | \
0340 SNDRV_PCM_FMTBIT_S32_LE, \
0341 }, \
0342 .capture = { \
0343 .stream_name = "TX" #id "-CIF-Capture", \
0344 .channels_min = 1, \
0345 .channels_max = 8, \
0346 .rates = SNDRV_PCM_RATE_8000_192000, \
0347 .formats = SNDRV_PCM_FMTBIT_S8 | \
0348 SNDRV_PCM_FMTBIT_S16_LE | \
0349 SNDRV_PCM_FMTBIT_S32_LE, \
0350 }, \
0351 .ops = &tegra210_mixer_out_dai_ops, \
0352 }
0353
0354 static struct snd_soc_dai_driver tegra210_mixer_dais[] = {
0355
0356 IN_DAI(1),
0357 IN_DAI(2),
0358 IN_DAI(3),
0359 IN_DAI(4),
0360 IN_DAI(5),
0361 IN_DAI(6),
0362 IN_DAI(7),
0363 IN_DAI(8),
0364 IN_DAI(9),
0365 IN_DAI(10),
0366
0367
0368 OUT_DAI(1),
0369 OUT_DAI(2),
0370 OUT_DAI(3),
0371 OUT_DAI(4),
0372 OUT_DAI(5),
0373 };
0374
0375 #define ADDER_CTRL_DECL(name, reg) \
0376 static const struct snd_kcontrol_new name[] = { \
0377 SOC_DAPM_SINGLE("RX1", reg, 0, 1, 0), \
0378 SOC_DAPM_SINGLE("RX2", reg, 1, 1, 0), \
0379 SOC_DAPM_SINGLE("RX3", reg, 2, 1, 0), \
0380 SOC_DAPM_SINGLE("RX4", reg, 3, 1, 0), \
0381 SOC_DAPM_SINGLE("RX5", reg, 4, 1, 0), \
0382 SOC_DAPM_SINGLE("RX6", reg, 5, 1, 0), \
0383 SOC_DAPM_SINGLE("RX7", reg, 6, 1, 0), \
0384 SOC_DAPM_SINGLE("RX8", reg, 7, 1, 0), \
0385 SOC_DAPM_SINGLE("RX9", reg, 8, 1, 0), \
0386 SOC_DAPM_SINGLE("RX10", reg, 9, 1, 0), \
0387 }
0388
0389 ADDER_CTRL_DECL(adder1, TEGRA210_MIXER_TX1_ADDER_CONFIG);
0390 ADDER_CTRL_DECL(adder2, TEGRA210_MIXER_TX2_ADDER_CONFIG);
0391 ADDER_CTRL_DECL(adder3, TEGRA210_MIXER_TX3_ADDER_CONFIG);
0392 ADDER_CTRL_DECL(adder4, TEGRA210_MIXER_TX4_ADDER_CONFIG);
0393 ADDER_CTRL_DECL(adder5, TEGRA210_MIXER_TX5_ADDER_CONFIG);
0394
0395 #define GAIN_CTRL(id) \
0396 SOC_SINGLE_EXT("RX" #id " Gain Volume", \
0397 MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \
0398 0x20000, 0, tegra210_mixer_get_gain, \
0399 tegra210_mixer_put_gain), \
0400 SOC_SINGLE_EXT("RX" #id " Instant Gain Volume", \
0401 MIXER_GAIN_CFG_RAM_ADDR((id) - 1), 0, \
0402 0x20000, 0, tegra210_mixer_get_gain, \
0403 tegra210_mixer_put_instant_gain),
0404
0405
0406 static const struct snd_kcontrol_new tegra210_mixer_gain_ctls[] = {
0407 GAIN_CTRL(1)
0408 GAIN_CTRL(2)
0409 GAIN_CTRL(3)
0410 GAIN_CTRL(4)
0411 GAIN_CTRL(5)
0412 GAIN_CTRL(6)
0413 GAIN_CTRL(7)
0414 GAIN_CTRL(8)
0415 GAIN_CTRL(9)
0416 GAIN_CTRL(10)
0417 };
0418
0419 static const struct snd_soc_dapm_widget tegra210_mixer_widgets[] = {
0420 SND_SOC_DAPM_AIF_IN("RX1", NULL, 0, SND_SOC_NOPM, 0, 0),
0421 SND_SOC_DAPM_AIF_IN("RX2", NULL, 0, SND_SOC_NOPM, 0, 0),
0422 SND_SOC_DAPM_AIF_IN("RX3", NULL, 0, SND_SOC_NOPM, 0, 0),
0423 SND_SOC_DAPM_AIF_IN("RX4", NULL, 0, SND_SOC_NOPM, 0, 0),
0424 SND_SOC_DAPM_AIF_IN("RX5", NULL, 0, SND_SOC_NOPM, 0, 0),
0425 SND_SOC_DAPM_AIF_IN("RX6", NULL, 0, SND_SOC_NOPM, 0, 0),
0426 SND_SOC_DAPM_AIF_IN("RX7", NULL, 0, SND_SOC_NOPM, 0, 0),
0427 SND_SOC_DAPM_AIF_IN("RX8", NULL, 0, SND_SOC_NOPM, 0, 0),
0428 SND_SOC_DAPM_AIF_IN("RX9", NULL, 0, SND_SOC_NOPM, 0, 0),
0429 SND_SOC_DAPM_AIF_IN("RX10", NULL, 0, SND_SOC_NOPM, 0, 0),
0430 SND_SOC_DAPM_AIF_OUT("TX1", NULL, 0, TEGRA210_MIXER_TX1_ENABLE, 0, 0),
0431 SND_SOC_DAPM_AIF_OUT("TX2", NULL, 0, TEGRA210_MIXER_TX2_ENABLE, 0, 0),
0432 SND_SOC_DAPM_AIF_OUT("TX3", NULL, 0, TEGRA210_MIXER_TX3_ENABLE, 0, 0),
0433 SND_SOC_DAPM_AIF_OUT("TX4", NULL, 0, TEGRA210_MIXER_TX4_ENABLE, 0, 0),
0434 SND_SOC_DAPM_AIF_OUT("TX5", NULL, 0, TEGRA210_MIXER_TX5_ENABLE, 0, 0),
0435 SND_SOC_DAPM_MIXER("Adder1", SND_SOC_NOPM, 1, 0, adder1,
0436 ARRAY_SIZE(adder1)),
0437 SND_SOC_DAPM_MIXER("Adder2", SND_SOC_NOPM, 1, 0, adder2,
0438 ARRAY_SIZE(adder2)),
0439 SND_SOC_DAPM_MIXER("Adder3", SND_SOC_NOPM, 1, 0, adder3,
0440 ARRAY_SIZE(adder3)),
0441 SND_SOC_DAPM_MIXER("Adder4", SND_SOC_NOPM, 1, 0, adder4,
0442 ARRAY_SIZE(adder4)),
0443 SND_SOC_DAPM_MIXER("Adder5", SND_SOC_NOPM, 1, 0, adder5,
0444 ARRAY_SIZE(adder5)),
0445 };
0446
0447 #define RX_ROUTES(id, sname) \
0448 { "RX" #id " XBAR-" sname, NULL, "RX" #id " XBAR-TX" }, \
0449 { "RX" #id "-CIF-" sname, NULL, "RX" #id " XBAR-" sname }, \
0450 { "RX" #id, NULL, "RX" #id "-CIF-" sname }
0451
0452 #define MIXER_RX_ROUTES(id) \
0453 RX_ROUTES(id, "Playback"), \
0454 RX_ROUTES(id, "Capture")
0455
0456 #define ADDER_ROUTES(id, sname) \
0457 { "Adder" #id, "RX1", "RX1" }, \
0458 { "Adder" #id, "RX2", "RX2" }, \
0459 { "Adder" #id, "RX3", "RX3" }, \
0460 { "Adder" #id, "RX4", "RX4" }, \
0461 { "Adder" #id, "RX5", "RX5" }, \
0462 { "Adder" #id, "RX6", "RX6" }, \
0463 { "Adder" #id, "RX7", "RX7" }, \
0464 { "Adder" #id, "RX8", "RX8" }, \
0465 { "Adder" #id, "RX9", "RX9" }, \
0466 { "Adder" #id, "RX10", "RX10" }, \
0467 { "TX" #id, NULL, "Adder" #id }, \
0468 { "TX" #id "-CIF-" sname, NULL, "TX" #id }, \
0469 { "TX" #id " XBAR-" sname, NULL, "TX" #id "-CIF-" sname }, \
0470 { "TX" #id " XBAR-RX", NULL, "TX" #id " XBAR-" sname } \
0471
0472 #define TX_ROUTES(id, sname) \
0473 ADDER_ROUTES(1, sname), \
0474 ADDER_ROUTES(2, sname), \
0475 ADDER_ROUTES(3, sname), \
0476 ADDER_ROUTES(4, sname), \
0477 ADDER_ROUTES(5, sname)
0478
0479 #define MIXER_TX_ROUTES(id) \
0480 TX_ROUTES(id, "Playback"), \
0481 TX_ROUTES(id, "Capture")
0482
0483 static const struct snd_soc_dapm_route tegra210_mixer_routes[] = {
0484
0485 MIXER_RX_ROUTES(1),
0486 MIXER_RX_ROUTES(2),
0487 MIXER_RX_ROUTES(3),
0488 MIXER_RX_ROUTES(4),
0489 MIXER_RX_ROUTES(5),
0490 MIXER_RX_ROUTES(6),
0491 MIXER_RX_ROUTES(7),
0492 MIXER_RX_ROUTES(8),
0493 MIXER_RX_ROUTES(9),
0494 MIXER_RX_ROUTES(10),
0495
0496 MIXER_TX_ROUTES(1),
0497 MIXER_TX_ROUTES(2),
0498 MIXER_TX_ROUTES(3),
0499 MIXER_TX_ROUTES(4),
0500 MIXER_TX_ROUTES(5),
0501 };
0502
0503 static const struct snd_soc_component_driver tegra210_mixer_cmpnt = {
0504 .dapm_widgets = tegra210_mixer_widgets,
0505 .num_dapm_widgets = ARRAY_SIZE(tegra210_mixer_widgets),
0506 .dapm_routes = tegra210_mixer_routes,
0507 .num_dapm_routes = ARRAY_SIZE(tegra210_mixer_routes),
0508 .controls = tegra210_mixer_gain_ctls,
0509 .num_controls = ARRAY_SIZE(tegra210_mixer_gain_ctls),
0510 };
0511
0512 static bool tegra210_mixer_wr_reg(struct device *dev,
0513 unsigned int reg)
0514 {
0515 if (reg < TEGRA210_MIXER_RX_LIMIT)
0516 reg = MIXER_REG_BASE(reg);
0517 else if (reg < TEGRA210_MIXER_TX_LIMIT)
0518 reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
0519
0520 switch (reg) {
0521 case TEGRA210_MIXER_RX1_SOFT_RESET:
0522 case TEGRA210_MIXER_RX1_CIF_CTRL ... TEGRA210_MIXER_RX1_PEAK_CTRL:
0523
0524 case TEGRA210_MIXER_TX1_ENABLE:
0525 case TEGRA210_MIXER_TX1_SOFT_RESET:
0526 case TEGRA210_MIXER_TX1_INT_MASK ... TEGRA210_MIXER_TX1_ADDER_CONFIG:
0527
0528 case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CG:
0529 case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL ... TEGRA210_MIXER_CTRL:
0530 return true;
0531 default:
0532 return false;
0533 }
0534 }
0535
0536 static bool tegra210_mixer_rd_reg(struct device *dev,
0537 unsigned int reg)
0538 {
0539 if (reg < TEGRA210_MIXER_RX_LIMIT)
0540 reg = MIXER_REG_BASE(reg);
0541 else if (reg < TEGRA210_MIXER_TX_LIMIT)
0542 reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
0543
0544 switch (reg) {
0545 case TEGRA210_MIXER_RX1_SOFT_RESET ... TEGRA210_MIXER_RX1_SAMPLE_COUNT:
0546 case TEGRA210_MIXER_TX1_ENABLE ... TEGRA210_MIXER_TX1_ADDER_CONFIG:
0547 case TEGRA210_MIXER_ENABLE ... TEGRA210_MIXER_CTRL:
0548 return true;
0549 default:
0550 return false;
0551 }
0552 }
0553
0554 static bool tegra210_mixer_volatile_reg(struct device *dev,
0555 unsigned int reg)
0556 {
0557 if (reg < TEGRA210_MIXER_RX_LIMIT)
0558 reg = MIXER_REG_BASE(reg);
0559 else if (reg < TEGRA210_MIXER_TX_LIMIT)
0560 reg = MIXER_REG_BASE(reg) + TEGRA210_MIXER_TX1_ENABLE;
0561
0562 switch (reg) {
0563 case TEGRA210_MIXER_RX1_SOFT_RESET:
0564 case TEGRA210_MIXER_RX1_STATUS:
0565
0566 case TEGRA210_MIXER_TX1_SOFT_RESET:
0567 case TEGRA210_MIXER_TX1_STATUS:
0568 case TEGRA210_MIXER_TX1_INT_STATUS:
0569 case TEGRA210_MIXER_TX1_INT_SET:
0570
0571 case TEGRA210_MIXER_SOFT_RESET:
0572 case TEGRA210_MIXER_STATUS:
0573 case TEGRA210_MIXER_INT_STATUS:
0574 case TEGRA210_MIXER_GAIN_CFG_RAM_CTRL:
0575 case TEGRA210_MIXER_GAIN_CFG_RAM_DATA:
0576 case TEGRA210_MIXER_PEAKM_RAM_CTRL:
0577 case TEGRA210_MIXER_PEAKM_RAM_DATA:
0578 return true;
0579 default:
0580 return false;
0581 }
0582 }
0583
0584 static bool tegra210_mixer_precious_reg(struct device *dev,
0585 unsigned int reg)
0586 {
0587 switch (reg) {
0588 case TEGRA210_MIXER_GAIN_CFG_RAM_DATA:
0589 case TEGRA210_MIXER_PEAKM_RAM_DATA:
0590 return true;
0591 default:
0592 return false;
0593 }
0594 }
0595
0596 static const struct regmap_config tegra210_mixer_regmap_config = {
0597 .reg_bits = 32,
0598 .reg_stride = 4,
0599 .val_bits = 32,
0600 .max_register = TEGRA210_MIXER_CTRL,
0601 .writeable_reg = tegra210_mixer_wr_reg,
0602 .readable_reg = tegra210_mixer_rd_reg,
0603 .volatile_reg = tegra210_mixer_volatile_reg,
0604 .precious_reg = tegra210_mixer_precious_reg,
0605 .reg_defaults = tegra210_mixer_reg_defaults,
0606 .num_reg_defaults = ARRAY_SIZE(tegra210_mixer_reg_defaults),
0607 .cache_type = REGCACHE_FLAT,
0608 };
0609
0610 static const struct of_device_id tegra210_mixer_of_match[] = {
0611 { .compatible = "nvidia,tegra210-amixer" },
0612 {},
0613 };
0614 MODULE_DEVICE_TABLE(of, tegra210_mixer_of_match);
0615
0616 static int tegra210_mixer_platform_probe(struct platform_device *pdev)
0617 {
0618 struct device *dev = &pdev->dev;
0619 struct tegra210_mixer *mixer;
0620 void __iomem *regs;
0621 int err, i;
0622
0623 mixer = devm_kzalloc(dev, sizeof(*mixer), GFP_KERNEL);
0624 if (!mixer)
0625 return -ENOMEM;
0626
0627 dev_set_drvdata(dev, mixer);
0628
0629
0630 for (i = 0; i < TEGRA210_MIXER_RX_MAX; i++)
0631 mixer->gain_value[i] = gain_params.gain_value;
0632
0633 regs = devm_platform_ioremap_resource(pdev, 0);
0634 if (IS_ERR(regs))
0635 return PTR_ERR(regs);
0636
0637 mixer->regmap = devm_regmap_init_mmio(dev, regs,
0638 &tegra210_mixer_regmap_config);
0639 if (IS_ERR(mixer->regmap)) {
0640 dev_err(dev, "regmap init failed\n");
0641 return PTR_ERR(mixer->regmap);
0642 }
0643
0644 regcache_cache_only(mixer->regmap, true);
0645
0646 err = devm_snd_soc_register_component(dev, &tegra210_mixer_cmpnt,
0647 tegra210_mixer_dais,
0648 ARRAY_SIZE(tegra210_mixer_dais));
0649 if (err) {
0650 dev_err(dev, "can't register MIXER component, err: %d\n", err);
0651 return err;
0652 }
0653
0654 pm_runtime_enable(dev);
0655
0656 return 0;
0657 }
0658
0659 static int tegra210_mixer_platform_remove(struct platform_device *pdev)
0660 {
0661 pm_runtime_disable(&pdev->dev);
0662
0663 return 0;
0664 }
0665
0666 static const struct dev_pm_ops tegra210_mixer_pm_ops = {
0667 SET_RUNTIME_PM_OPS(tegra210_mixer_runtime_suspend,
0668 tegra210_mixer_runtime_resume, NULL)
0669 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
0670 pm_runtime_force_resume)
0671 };
0672
0673 static struct platform_driver tegra210_mixer_driver = {
0674 .driver = {
0675 .name = "tegra210_mixer",
0676 .of_match_table = tegra210_mixer_of_match,
0677 .pm = &tegra210_mixer_pm_ops,
0678 },
0679 .probe = tegra210_mixer_platform_probe,
0680 .remove = tegra210_mixer_platform_remove,
0681 };
0682 module_platform_driver(tegra210_mixer_driver);
0683
0684 MODULE_AUTHOR("Arun Shamanna Lakshmi <aruns@nvidia.com>");
0685 MODULE_DESCRIPTION("Tegra210 MIXER ASoC driver");
0686 MODULE_LICENSE("GPL v2");
