1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * rt5575.c -- ALC5575 ALSA SoC audio component driver 4 * 5 * Copyright(c) 2025 Realtek Semiconductor Corp. 6 * 7 */ 8 9 #include <linux/i2c.h> 10 #include <sound/soc.h> 11 #include <sound/tlv.h> 12 13 #include "rt5575.h" 14 #include "rt5575-spi.h" 15 16 static bool rt5575_readable_register(struct device *dev, unsigned int reg) 17 { 18 switch (reg) { 19 case RT5575_BOOT: 20 case RT5575_ID: 21 case RT5575_ID_1: 22 case RT5575_MIXL_VOL: 23 case RT5575_MIXR_VOL: 24 case RT5575_PROMPT_VOL: 25 case RT5575_SPK01_VOL: 26 case RT5575_SPK23_VOL: 27 case RT5575_MIC1_VOL: 28 case RT5575_MIC2_VOL: 29 case RT5575_WNC_CTRL: 30 case RT5575_MODE_CTRL: 31 case RT5575_I2S_RATE_CTRL: 32 case RT5575_SLEEP_CTRL: 33 case RT5575_ALG_BYPASS_CTRL: 34 case RT5575_PINMUX_CTRL_2: 35 case RT5575_GPIO_CTRL_1: 36 case RT5575_DSP_BUS_CTRL: 37 case RT5575_SW_INT: 38 case RT5575_DSP_BOOT_ERR: 39 case RT5575_DSP_READY: 40 case RT5575_DSP_CMD_ADDR: 41 case RT5575_EFUSE_DATA_2: 42 case RT5575_EFUSE_DATA_3: 43 return true; 44 default: 45 return false; 46 } 47 } 48 49 static const DECLARE_TLV_DB_SCALE(ob_tlv, -9525, 75, 0); 50 51 static const struct snd_kcontrol_new rt5575_snd_controls[] = { 52 SOC_DOUBLE("Speaker CH-01 Playback Switch", RT5575_SPK01_VOL, 31, 15, 1, 1), 53 SOC_DOUBLE_TLV("Speaker CH-01 Playback Volume", RT5575_SPK01_VOL, 17, 1, 167, 0, ob_tlv), 54 SOC_DOUBLE("Speaker CH-23 Playback Switch", RT5575_SPK23_VOL, 31, 15, 1, 1), 55 SOC_DOUBLE_TLV("Speaker CH-23 Playback Volume", RT5575_SPK23_VOL, 17, 1, 167, 0, ob_tlv), 56 SOC_DOUBLE("Mic1 Capture Switch", RT5575_MIC1_VOL, 31, 15, 1, 1), 57 SOC_DOUBLE_TLV("Mic1 Capture Volume", RT5575_MIC1_VOL, 17, 1, 167, 0, ob_tlv), 58 SOC_DOUBLE("Mic2 Capture Switch", RT5575_MIC2_VOL, 31, 15, 1, 1), 59 SOC_DOUBLE_TLV("Mic2 Capture Volume", RT5575_MIC2_VOL, 17, 1, 167, 0, ob_tlv), 60 SOC_DOUBLE_R("Mix Playback Switch", RT5575_MIXL_VOL, RT5575_MIXR_VOL, 31, 1, 1), 61 SOC_DOUBLE_R_TLV("Mix Playback Volume", RT5575_MIXL_VOL, RT5575_MIXR_VOL, 1, 127, 0, 62 ob_tlv), 63 SOC_DOUBLE("Prompt Playback Switch", RT5575_PROMPT_VOL, 31, 15, 1, 1), 64 SOC_DOUBLE_TLV("Prompt Playback Volume", RT5575_PROMPT_VOL, 17, 1, 167, 0, ob_tlv), 65 }; 66 67 static const struct snd_soc_dapm_widget rt5575_dapm_widgets[] = { 68 SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0), 69 SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0), 70 SND_SOC_DAPM_AIF_IN("AIF2RX", "AIF2 Playback", 0, SND_SOC_NOPM, 0, 0), 71 SND_SOC_DAPM_AIF_OUT("AIF2TX", "AIF2 Capture", 0, SND_SOC_NOPM, 0, 0), 72 SND_SOC_DAPM_AIF_IN("AIF3RX", "AIF3 Playback", 0, SND_SOC_NOPM, 0, 0), 73 SND_SOC_DAPM_AIF_OUT("AIF3TX", "AIF3 Capture", 0, SND_SOC_NOPM, 0, 0), 74 SND_SOC_DAPM_AIF_IN("AIF4RX", "AIF4 Playback", 0, SND_SOC_NOPM, 0, 0), 75 SND_SOC_DAPM_AIF_OUT("AIF4TX", "AIF4 Capture", 0, SND_SOC_NOPM, 0, 0), 76 77 SND_SOC_DAPM_INPUT("INPUT"), 78 SND_SOC_DAPM_OUTPUT("OUTPUT"), 79 }; 80 81 static const struct snd_soc_dapm_route rt5575_dapm_routes[] = { 82 { "AIF1TX", NULL, "INPUT" }, 83 { "AIF2TX", NULL, "INPUT" }, 84 { "AIF3TX", NULL, "INPUT" }, 85 { "AIF4TX", NULL, "INPUT" }, 86 { "OUTPUT", NULL, "AIF1RX" }, 87 { "OUTPUT", NULL, "AIF2RX" }, 88 { "OUTPUT", NULL, "AIF3RX" }, 89 { "OUTPUT", NULL, "AIF4RX" }, 90 }; 91 92 static long long rt5575_get_priv_id(struct rt5575_priv *rt5575) 93 { 94 int priv_id_low, priv_id_high; 95 96 regmap_write(rt5575->regmap, RT5575_EFUSE_PID, 0xa0000000); 97 regmap_read(rt5575->regmap, RT5575_EFUSE_DATA_2, &priv_id_low); 98 regmap_read(rt5575->regmap, RT5575_EFUSE_DATA_3, &priv_id_high); 99 regmap_write(rt5575->regmap, RT5575_EFUSE_PID, 0); 100 101 return ((long long)priv_id_high << 32) | (long long)priv_id_low; 102 } 103 104 static int rt5575_probe(struct snd_soc_component *component) 105 { 106 struct rt5575_priv *rt5575 = snd_soc_component_get_drvdata(component); 107 struct device *dev = component->dev; 108 109 rt5575->component = component; 110 111 dev_info(dev, "Private ID: %llx\n", rt5575_get_priv_id(rt5575)); 112 113 return 0; 114 } 115 116 #define RT5575_STEREO_RATES SNDRV_PCM_RATE_8000_192000 117 #define RT5575_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \ 118 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8 | \ 119 SNDRV_PCM_FMTBIT_S32_LE) 120 121 static struct snd_soc_dai_driver rt5575_dai[] = { 122 { 123 .name = "rt5575-aif1", 124 .id = RT5575_AIF1, 125 .playback = { 126 .stream_name = "AIF1 Playback", 127 .channels_min = 1, 128 .channels_max = 8, 129 .rates = RT5575_STEREO_RATES, 130 .formats = RT5575_FORMATS, 131 }, 132 .capture = { 133 .stream_name = "AIF1 Capture", 134 .channels_min = 1, 135 .channels_max = 8, 136 .rates = RT5575_STEREO_RATES, 137 .formats = RT5575_FORMATS, 138 }, 139 }, 140 { 141 .name = "rt5575-aif2", 142 .id = RT5575_AIF2, 143 .playback = { 144 .stream_name = "AIF2 Playback", 145 .channels_min = 1, 146 .channels_max = 8, 147 .rates = RT5575_STEREO_RATES, 148 .formats = RT5575_FORMATS, 149 }, 150 .capture = { 151 .stream_name = "AIF2 Capture", 152 .channels_min = 1, 153 .channels_max = 8, 154 .rates = RT5575_STEREO_RATES, 155 .formats = RT5575_FORMATS, 156 }, 157 }, 158 { 159 .name = "rt5575-aif3", 160 .id = RT5575_AIF3, 161 .playback = { 162 .stream_name = "AIF3 Playback", 163 .channels_min = 1, 164 .channels_max = 8, 165 .rates = RT5575_STEREO_RATES, 166 .formats = RT5575_FORMATS, 167 }, 168 .capture = { 169 .stream_name = "AIF3 Capture", 170 .channels_min = 1, 171 .channels_max = 8, 172 .rates = RT5575_STEREO_RATES, 173 .formats = RT5575_FORMATS, 174 }, 175 }, 176 { 177 .name = "rt5575-aif4", 178 .id = RT5575_AIF4, 179 .playback = { 180 .stream_name = "AIF4 Playback", 181 .channels_min = 1, 182 .channels_max = 8, 183 .rates = RT5575_STEREO_RATES, 184 .formats = RT5575_FORMATS, 185 }, 186 .capture = { 187 .stream_name = "AIF4 Capture", 188 .channels_min = 1, 189 .channels_max = 8, 190 .rates = RT5575_STEREO_RATES, 191 .formats = RT5575_FORMATS, 192 }, 193 }, 194 }; 195 196 static const struct snd_soc_component_driver rt5575_soc_component_dev = { 197 .probe = rt5575_probe, 198 .controls = rt5575_snd_controls, 199 .num_controls = ARRAY_SIZE(rt5575_snd_controls), 200 .dapm_widgets = rt5575_dapm_widgets, 201 .num_dapm_widgets = ARRAY_SIZE(rt5575_dapm_widgets), 202 .dapm_routes = rt5575_dapm_routes, 203 .num_dapm_routes = ARRAY_SIZE(rt5575_dapm_routes), 204 .use_pmdown_time = 1, 205 .endianness = 1, 206 }; 207 208 static const struct regmap_config rt5575_dsp_regmap = { 209 .name = "dsp", 210 .reg_bits = 32, 211 .val_bits = 32, 212 .reg_stride = 2, 213 }; 214 215 static int rt5575_i2c_read(void *context, unsigned int reg, unsigned int *val) 216 { 217 struct i2c_client *client = context; 218 struct rt5575_priv *rt5575 = i2c_get_clientdata(client); 219 220 return regmap_read(rt5575->dsp_regmap, reg | RT5575_DSP_MAPPING, val); 221 } 222 223 static int rt5575_i2c_write(void *context, unsigned int reg, unsigned int val) 224 { 225 struct i2c_client *client = context; 226 struct rt5575_priv *rt5575 = i2c_get_clientdata(client); 227 228 return regmap_write(rt5575->dsp_regmap, reg | RT5575_DSP_MAPPING, val); 229 } 230 231 static const struct regmap_config rt5575_regmap = { 232 .reg_bits = 16, 233 .val_bits = 32, 234 .reg_stride = 4, 235 .max_register = 0xfffc, 236 .readable_reg = rt5575_readable_register, 237 .reg_read = rt5575_i2c_read, 238 .reg_write = rt5575_i2c_write, 239 .use_single_read = true, 240 .use_single_write = true, 241 }; 242 243 static int rt5575_fw_load_by_spi(struct rt5575_priv *rt5575) 244 { 245 struct i2c_client *i2c = rt5575->i2c; 246 struct spi_device *spi; 247 struct device *dev = &i2c->dev; 248 int ret; 249 250 spi = rt5575_spi_get_device(dev); 251 if (!spi) { 252 dev_err(dev, "Failed to get spi_device\n"); 253 return -ENODEV; 254 } 255 256 regmap_write(rt5575->dsp_regmap, 0xfafafafa, 0x00000004); 257 regmap_write(rt5575->dsp_regmap, 0x18008064, 0x00000000); 258 regmap_write(rt5575->dsp_regmap, 0x18008068, 0x0002ffff); 259 260 ret = rt5575_spi_fw_load(spi); 261 if (ret) { 262 dev_err(dev, "Load firmware failure: %d\n", ret); 263 return -ENODEV; 264 } 265 266 regmap_write(rt5575->dsp_regmap, 0x18000000, 0x00000000); 267 regmap_update_bits(rt5575->regmap, RT5575_SW_INT, 1, 1); 268 269 regmap_read_poll_timeout(rt5575->regmap, RT5575_SW_INT, ret, !ret, 100000, 10000000); 270 if (ret) { 271 dev_err(dev, "Run firmware failure: %d\n", ret); 272 return -ENODEV; 273 } 274 275 return 0; 276 } 277 278 static int rt5575_i2c_probe(struct i2c_client *i2c) 279 { 280 struct rt5575_priv *rt5575; 281 int ret, val, boot; 282 struct device *dev = &i2c->dev; 283 284 rt5575 = devm_kzalloc(dev, sizeof(struct rt5575_priv), GFP_KERNEL); 285 if (!rt5575) 286 return -ENOMEM; 287 288 i2c_set_clientdata(i2c, rt5575); 289 290 rt5575->i2c = i2c; 291 292 rt5575->dsp_regmap = devm_regmap_init_i2c(i2c, &rt5575_dsp_regmap); 293 if (IS_ERR(rt5575->dsp_regmap)) { 294 ret = PTR_ERR(rt5575->dsp_regmap); 295 dev_err(dev, "Failed to allocate DSP register map: %d\n", ret); 296 return ret; 297 } 298 299 rt5575->regmap = devm_regmap_init(dev, NULL, i2c, &rt5575_regmap); 300 if (IS_ERR(rt5575->regmap)) { 301 ret = PTR_ERR(rt5575->regmap); 302 dev_err(dev, "Failed to allocate register map: %d\n", ret); 303 return ret; 304 } 305 306 regmap_read(rt5575->regmap, RT5575_ID, &val); 307 if (val != RT5575_DEVICE_ID) { 308 dev_err(dev, "Device with ID register %08x is not rt5575\n", val); 309 return -ENODEV; 310 } 311 312 regmap_read(rt5575->regmap, RT5575_BOOT, &boot); 313 if ((boot & RT5575_BOOT_MASK) == RT5575_BOOT_SPI) { 314 if (!IS_ENABLED(CONFIG_SND_SOC_RT5575_SPI)) { 315 dev_err(dev, "Please enable CONFIG_SND_SOC_RT5575_SPI\n"); 316 return -ENODEV; 317 } 318 319 if (rt5575_fw_load_by_spi(rt5575)) 320 return -ENODEV; 321 } 322 323 return devm_snd_soc_register_component(dev, &rt5575_soc_component_dev, rt5575_dai, 324 ARRAY_SIZE(rt5575_dai)); 325 } 326 327 static const struct i2c_device_id rt5575_i2c_id[] = { 328 { "rt5575" }, 329 { } 330 }; 331 MODULE_DEVICE_TABLE(i2c, rt5575_i2c_id); 332 333 static const struct of_device_id rt5575_of_match[] = { 334 { .compatible = "realtek,rt5575" }, 335 { } 336 }; 337 MODULE_DEVICE_TABLE(of, rt5575_of_match); 338 339 static struct i2c_driver rt5575_i2c_driver = { 340 .driver = { 341 .name = "rt5575", 342 .owner = THIS_MODULE, 343 .of_match_table = rt5575_of_match, 344 }, 345 .probe = rt5575_i2c_probe, 346 .id_table = rt5575_i2c_id, 347 }; 348 module_i2c_driver(rt5575_i2c_driver); 349 350 MODULE_DESCRIPTION("ASoC ALC5575 driver"); 351 MODULE_AUTHOR("Oder Chiou <oder_chiou@realtek.com>"); 352 MODULE_LICENSE("GPL"); 353