1 // SPDX-License-Identifier: GPL-2.0-only
10 #include <linux/delay.h>
203 		ret = down_timeout(&nau8824->jd_sem, timeout);  in nau8824_sema_acquire()
205 			dev_warn(nau8824->dev, "Acquire semaphore timeout\n");  in nau8824_sema_acquire()
207 		ret = down_interruptible(&nau8824->jd_sem);  in nau8824_sema_acquire()
209 			dev_warn(nau8824->dev, "Acquire semaphore fail\n");  in nau8824_sema_acquire()
217 	up(&nau8824->jd_sem);  in nau8824_sema_release()
296 	"Off", "NC", "u-law", "A-law" };
351 static const DECLARE_TLV_DB_MINMAX(hp_vol_tlv, -3000, 0);
353 static const DECLARE_TLV_DB_SCALE(dmic_vol_tlv, -12800, 50, 0);
423 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in nau8824_output_dac_event()
429 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,  in nau8824_output_dac_event()
433 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,  in nau8824_output_dac_event()
437 		return -EINVAL;  in nau8824_output_dac_event()
446 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in nau8824_spk_event()
451 		regmap_update_bits(nau8824->regmap,  in nau8824_spk_event()
456 		regmap_update_bits(nau8824->regmap,  in nau8824_spk_event()
461 		return -EINVAL;  in nau8824_spk_event()
470 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in nau8824_pump_event()
477 		regmap_update_bits(nau8824->regmap,  in nau8824_pump_event()
482 		regmap_update_bits(nau8824->regmap,  in nau8824_pump_event()
487 		return -EINVAL;  in nau8824_pump_event()
496 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in system_clock_control()
498 	struct regmap *regmap = nau8824->regmap;  in system_clock_control()
503 		dev_dbg(nau8824->dev, "system clock control : POWER OFF\n");  in system_clock_control()
516 		dev_dbg(nau8824->dev, "system clock control : POWER ON\n");  in system_clock_control()
555 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in dmic_clock_control()
564 		if ((0x1 << (8 - src)) * nau8824->fs <= DMIC_CLK)  in dmic_clock_control()
567 	dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, nau8824->fs * 256);  in dmic_clock_control()
568 	regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in dmic_clock_control()
806 	struct snd_soc_jack *jack = nau8824->jack;  in nau8824_is_jack_inserted()
809 	if (nau8824->irq && jack)  in nau8824_is_jack_inserted()
810 		insert = jack->status & SND_JACK_HEADPHONE;  in nau8824_is_jack_inserted()
819 	/* Reset the intrruption status from rightmost bit if the corres-  in nau8824_int_status_clear_all()
833 	struct snd_soc_dapm_context *dapm = nau8824->dapm;  in nau8824_eject_jack()
834 	struct regmap *regmap = nau8824->regmap;  in nau8824_eject_jack()
844 	 * interruption, and then bypass de-bounce circuit.  in nau8824_eject_jack()
858 	if (dapm->bias_level < SND_SOC_BIAS_PREPARE)  in nau8824_eject_jack()
866 	struct snd_soc_dapm_context *dapm = nau8824->dapm;  in nau8824_jdet_work()
867 	struct regmap *regmap = nau8824->regmap;  in nau8824_jdet_work()
878 	dev_dbg(nau8824->dev, "SAR ADC data 0x%02x\n", adc_value);  in nau8824_jdet_work()
889 	snd_soc_jack_report(nau8824->jack, event, event_mask);  in nau8824_jdet_work()
901 	struct regmap *regmap = nau8824->regmap;  in nau8824_setup_auto_irq()
910 	if (nau8824->dapm->bias_level < SND_SOC_BIAS_PREPARE)  in nau8824_setup_auto_irq()
945 	struct regmap *regmap = nau8824->regmap;  in nau8824_interrupt()
949 		dev_err(nau8824->dev, "failed to read irq status\n");  in nau8824_interrupt()
952 	dev_dbg(nau8824->dev, "IRQ %x\n", active_irq);  in nau8824_interrupt()
962 		cancel_work_sync(&nau8824->jdet_work);  in nau8824_interrupt()
973 		dev_dbg(nau8824->dev, "button %x pressed\n", event);  in nau8824_interrupt()
989 		cancel_work_sync(&nau8824->jdet_work);  in nau8824_interrupt()
990 		schedule_work(&nau8824->jdet_work);  in nau8824_interrupt()
1004 		snd_soc_jack_report(nau8824->jack, event, event_mask);  in nau8824_interrupt()
1016 			return -EINVAL;  in nau8824_clock_check()
1020 			return -EINVAL;  in nau8824_clock_check()
1025 		dev_err(nau8824->dev, "exceed the maximum frequency of CLK_ADC or CLK_DAC\n");  in nau8824_clock_check()
1026 		return -EINVAL;  in nau8824_clock_check()
1035 	struct snd_soc_component *component = dai->component;  in nau8824_hw_params()
1043 	 * multiplied by the audio sample rate (Fs). Note that the OSR and Fs  in nau8824_hw_params()
1047 	nau8824->fs = params_rate(params);  in nau8824_hw_params()
1048 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {  in nau8824_hw_params()
1049 		regmap_read(nau8824->regmap,  in nau8824_hw_params()
1052 		if (nau8824_clock_check(nau8824, substream->stream,  in nau8824_hw_params()
1053 			nau8824->fs, osr))  in nau8824_hw_params()
1054 			return -EINVAL;  in nau8824_hw_params()
1055 		regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_hw_params()
1059 		regmap_read(nau8824->regmap,  in nau8824_hw_params()
1062 		if (nau8824_clock_check(nau8824, substream->stream,  in nau8824_hw_params()
1063 			nau8824->fs, osr))  in nau8824_hw_params()
1064 			return -EINVAL;  in nau8824_hw_params()
1065 		regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_hw_params()
1071 	regmap_read(nau8824->regmap,  in nau8824_hw_params()
1075 		bclk_fs = snd_soc_params_to_bclk(params) / nau8824->fs;  in nau8824_hw_params()
1085 			return -EINVAL;  in nau8824_hw_params()
1086 		regmap_update_bits(nau8824->regmap,  in nau8824_hw_params()
1106 		return -EINVAL;  in nau8824_hw_params()
1109 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,  in nau8824_hw_params()
1119 	struct snd_soc_component *component = dai->component;  in nau8824_set_fmt()
1132 		return -EINVAL;  in nau8824_set_fmt()
1142 		return -EINVAL;  in nau8824_set_fmt()
1163 		return -EINVAL;  in nau8824_set_fmt()
1166 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,  in nau8824_set_fmt()
1169 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2,  in nau8824_set_fmt()
1178  * nau8824_set_tdm_slot - configure DAI TDM.
1183  * @rx_mask: Bitmask [0:1] representing active DACR RX slots.
1184  *                 Bitmask [2:3] representing active DACL RX slots.
1196 	struct snd_soc_component *component = dai->component;  in nau8824_set_tdm_slot()
1204 		return -EINVAL;  in nau8824_set_tdm_slot()
1218 	regmap_update_bits(nau8824->regmap, NAU8824_REG_TDM_CTRL,  in nau8824_set_tdm_slot()
1222 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_LEFT_TIME_SLOT,  in nau8824_set_tdm_slot()
1229  * nau8824_calc_fll_param - Calculate FLL parameters.
1245 	 * freq_in by 1, 2, 4, or 8 using FLL pre-scalar.  in nau8824_calc_fll_param()
1254 		return -EINVAL;  in nau8824_calc_fll_param()
1255 	fll_param->clk_ref_div = fll_pre_scalar[i].val;  in nau8824_calc_fll_param()
1263 		return -EINVAL;  in nau8824_calc_fll_param()
1264 	fll_param->ratio = fll_ratio[i].val;  in nau8824_calc_fll_param()
1267 	 * FDCO must be within the 90MHz - 124MHz or the FFL cannot be  in nau8824_calc_fll_param()
1282 		return -EINVAL;  in nau8824_calc_fll_param()
1283 	fll_param->mclk_src = mclk_src_scaling[fvco_sel].val;  in nau8824_calc_fll_param()
1285 	/* Calculate the FLL 10-bit integer input and the FLL 16-bit fractional  in nau8824_calc_fll_param()
1288 	fvco = div_u64(fvco_max << 16, fref * fll_param->ratio);  in nau8824_calc_fll_param()
1289 	fll_param->fll_int = (fvco >> 16) & 0x3FF;  in nau8824_calc_fll_param()
1290 	fll_param->fll_frac = fvco & 0xFFFF;  in nau8824_calc_fll_param()
1299 		NAU8824_CLK_SRC_MCLK | fll_param->mclk_src);  in nau8824_fll_apply()
1301 		NAU8824_FLL_RATIO_MASK, fll_param->ratio);  in nau8824_fll_apply()
1302 	/* FLL 16-bit fractional input */  in nau8824_fll_apply()
1303 	regmap_write(regmap, NAU8824_REG_FLL2, fll_param->fll_frac);  in nau8824_fll_apply()
1304 	/* FLL 10-bit integer input */  in nau8824_fll_apply()
1306 		NAU8824_FLL_INTEGER_MASK, fll_param->fll_int);  in nau8824_fll_apply()
1307 	/* FLL pre-scaler */  in nau8824_fll_apply()
1310 		fll_param->clk_ref_div << NAU8824_FLL_REF_DIV_SFT);  in nau8824_fll_apply()
1314 	/* Disable free-running mode */  in nau8824_fll_apply()
1317 	if (fll_param->fll_frac) {  in nau8824_fll_apply()
1345 		dev_err(nau8824->dev, "Unsupported input clock %d\n", freq_in);  in nau8824_set_pll()
1348 	dev_dbg(nau8824->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n",  in nau8824_set_pll()
1352 	nau8824_fll_apply(nau8824->regmap, &fll_param);  in nau8824_set_pll()
1354 	regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_set_pll()
1363 	struct regmap *regmap = nau8824->regmap;  in nau8824_config_sysclk()
1411 		dev_err(nau8824->dev, "Invalid clock id (%d)\n", clk_id);  in nau8824_config_sysclk()
1412 		return -EINVAL;  in nau8824_config_sysclk()
1415 	dev_dbg(nau8824->dev, "Sysclk is %dHz and clock id is %d\n", freq,  in nau8824_config_sysclk()
1432 	if (nau8824->irq) {  in nau8824_resume_setup()
1434 		nau8824_int_status_clear_all(nau8824->regmap);  in nau8824_resume_setup()
1438 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,  in nau8824_resume_setup()
1440 		regmap_update_bits(nau8824->regmap,  in nau8824_resume_setup()
1444 		regmap_update_bits(nau8824->regmap,  in nau8824_resume_setup()
1470 		regmap_update_bits(nau8824->regmap,  in nau8824_set_bias_level()
1472 		regmap_update_bits(nau8824->regmap,  in nau8824_set_bias_level()
1486 	nau8824->dapm = dapm;  in nau8824_component_probe()
1495 	if (nau8824->irq) {  in nau8824_suspend()
1496 		disable_irq(nau8824->irq);  in nau8824_suspend()
1499 	regcache_cache_only(nau8824->regmap, true);  in nau8824_suspend()
1500 	regcache_mark_dirty(nau8824->regmap);  in nau8824_suspend()
1509 	regcache_cache_only(nau8824->regmap, false);  in nau8824_resume()
1510 	regcache_sync(nau8824->regmap);  in nau8824_resume()
1511 	if (nau8824->irq) {  in nau8824_resume()
1516 		enable_irq(nau8824->irq);  in nau8824_resume()
1586  * nau8824_enable_jack_detect - Specify a jack for event reporting
1601 	nau8824->jack = jack;  in nau8824_enable_jack_detect()
1603 	INIT_WORK(&nau8824->jdet_work, nau8824_jdet_work);  in nau8824_enable_jack_detect()
1604 	ret = devm_request_threaded_irq(nau8824->dev, nau8824->irq, NULL,  in nau8824_enable_jack_detect()
1608 		dev_err(nau8824->dev, "Cannot request irq %d (%d)\n",  in nau8824_enable_jack_detect()
1609 			nau8824->irq, ret);  in nau8824_enable_jack_detect()
1624 	struct regmap *regmap = nau8824->regmap;  in nau8824_setup_buttons()
1628 		nau8824->sar_voltage << NAU8824_SAR_TRACKING_GAIN_SFT);  in nau8824_setup_buttons()
1631 		nau8824->sar_compare_time << NAU8824_SAR_COMPARE_TIME_SFT);  in nau8824_setup_buttons()
1634 		nau8824->sar_sampling_time << NAU8824_SAR_SAMPLING_TIME_SFT);  in nau8824_setup_buttons()
1638 		(nau8824->sar_threshold_num - 1) << NAU8824_LEVELS_NR_SFT);  in nau8824_setup_buttons()
1641 		nau8824->sar_hysteresis << NAU8824_HYSTERESIS_SFT);  in nau8824_setup_buttons()
1644 		nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT);  in nau8824_setup_buttons()
1647 		(nau8824->sar_threshold[0] << 8) | nau8824->sar_threshold[1]);  in nau8824_setup_buttons()
1649 		(nau8824->sar_threshold[2] << 8) | nau8824->sar_threshold[3]);  in nau8824_setup_buttons()
1651 		(nau8824->sar_threshold[4] << 8) | nau8824->sar_threshold[5]);  in nau8824_setup_buttons()
1653 		(nau8824->sar_threshold[6] << 8) | nau8824->sar_threshold[7]);  in nau8824_setup_buttons()
1658 	struct regmap *regmap = nau8824->regmap;  in nau8824_init_regs()
1663 		(nau8824->vref_impedance << NAU8824_VMID_SEL_SFT));  in nau8824_init_regs()
1668 		NAU8824_MICBIAS_VOLTAGE_MASK, nau8824->micbias_voltage);  in nau8824_init_regs()
1732 	/* DAC clock delay 2ns, VREF */  in nau8824_init_regs()
1747 		/* jkdet_polarity - 1  is for active-low */  in nau8824_init_regs()
1748 		nau8824->jkdet_polarity ? 0 : NAU8824_JACK_LOGIC);  in nau8824_init_regs()
1751 		(nau8824->jack_eject_debounce << NAU8824_JACK_EJECT_DT_SFT));  in nau8824_init_regs()
1752 	if (nau8824->sar_threshold_num)  in nau8824_init_regs()
1759 	regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,  in nau8824_setup_irq()
1761 	regmap_update_bits(nau8824->regmap,  in nau8824_setup_irq()
1763 	regmap_update_bits(nau8824->regmap, NAU8824_REG_INTERRUPT_SETTING_1,  in nau8824_setup_irq()
1771 	struct device *dev = nau8824->dev;  in nau8824_print_device_properties()
1774 	dev_dbg(dev, "jkdet-polarity:       %d\n", nau8824->jkdet_polarity);  in nau8824_print_device_properties()
1775 	dev_dbg(dev, "micbias-voltage:      %d\n", nau8824->micbias_voltage);  in nau8824_print_device_properties()
1776 	dev_dbg(dev, "vref-impedance:       %d\n", nau8824->vref_impedance);  in nau8824_print_device_properties()
1778 	dev_dbg(dev, "sar-threshold-num:    %d\n", nau8824->sar_threshold_num);  in nau8824_print_device_properties()
1779 	for (i = 0; i < nau8824->sar_threshold_num; i++)  in nau8824_print_device_properties()
1780 		dev_dbg(dev, "sar-threshold[%d]=%x\n", i,  in nau8824_print_device_properties()
1781 				nau8824->sar_threshold[i]);  in nau8824_print_device_properties()
1783 	dev_dbg(dev, "sar-hysteresis:       %d\n", nau8824->sar_hysteresis);  in nau8824_print_device_properties()
1784 	dev_dbg(dev, "sar-voltage:          %d\n", nau8824->sar_voltage);  in nau8824_print_device_properties()
1785 	dev_dbg(dev, "sar-compare-time:     %d\n", nau8824->sar_compare_time);  in nau8824_print_device_properties()
1786 	dev_dbg(dev, "sar-sampling-time:    %d\n", nau8824->sar_sampling_time);  in nau8824_print_device_properties()
1787 	dev_dbg(dev, "short-key-debounce:   %d\n", nau8824->key_debounce);  in nau8824_print_device_properties()
1788 	dev_dbg(dev, "jack-eject-debounce:  %d\n",  in nau8824_print_device_properties()
1789 			nau8824->jack_eject_debounce);  in nau8824_print_device_properties()
1796 	ret = device_property_read_u32(dev, "nuvoton,jkdet-polarity",  in nau8824_read_device_properties()
1797 		&nau8824->jkdet_polarity);  in nau8824_read_device_properties()
1799 		nau8824->jkdet_polarity = 1;  in nau8824_read_device_properties()
1800 	ret = device_property_read_u32(dev, "nuvoton,micbias-voltage",  in nau8824_read_device_properties()
1801 		&nau8824->micbias_voltage);  in nau8824_read_device_properties()
1803 		nau8824->micbias_voltage = 6;  in nau8824_read_device_properties()
1804 	ret = device_property_read_u32(dev, "nuvoton,vref-impedance",  in nau8824_read_device_properties()
1805 		&nau8824->vref_impedance);  in nau8824_read_device_properties()
1807 		nau8824->vref_impedance = 2;  in nau8824_read_device_properties()
1808 	ret = device_property_read_u32(dev, "nuvoton,sar-threshold-num",  in nau8824_read_device_properties()
1809 		&nau8824->sar_threshold_num);  in nau8824_read_device_properties()
1811 		nau8824->sar_threshold_num = 4;  in nau8824_read_device_properties()
1812 	ret = device_property_read_u32_array(dev, "nuvoton,sar-threshold",  in nau8824_read_device_properties()
1813 		nau8824->sar_threshold, nau8824->sar_threshold_num);  in nau8824_read_device_properties()
1815 		nau8824->sar_threshold[0] = 0x0a;  in nau8824_read_device_properties()
1816 		nau8824->sar_threshold[1] = 0x14;  in nau8824_read_device_properties()
1817 		nau8824->sar_threshold[2] = 0x26;  in nau8824_read_device_properties()
1818 		nau8824->sar_threshold[3] = 0x73;  in nau8824_read_device_properties()
1820 	ret = device_property_read_u32(dev, "nuvoton,sar-hysteresis",  in nau8824_read_device_properties()
1821 		&nau8824->sar_hysteresis);  in nau8824_read_device_properties()
1823 		nau8824->sar_hysteresis = 0;  in nau8824_read_device_properties()
1824 	ret = device_property_read_u32(dev, "nuvoton,sar-voltage",  in nau8824_read_device_properties()
1825 		&nau8824->sar_voltage);  in nau8824_read_device_properties()
1827 		nau8824->sar_voltage = 6;  in nau8824_read_device_properties()
1828 	ret = device_property_read_u32(dev, "nuvoton,sar-compare-time",  in nau8824_read_device_properties()
1829 		&nau8824->sar_compare_time);  in nau8824_read_device_properties()
1831 		nau8824->sar_compare_time = 1;  in nau8824_read_device_properties()
1832 	ret = device_property_read_u32(dev, "nuvoton,sar-sampling-time",  in nau8824_read_device_properties()
1833 		&nau8824->sar_sampling_time);  in nau8824_read_device_properties()
1835 		nau8824->sar_sampling_time = 1;  in nau8824_read_device_properties()
1836 	ret = device_property_read_u32(dev, "nuvoton,short-key-debounce",  in nau8824_read_device_properties()
1837 		&nau8824->key_debounce);  in nau8824_read_device_properties()
1839 		nau8824->key_debounce = 0;  in nau8824_read_device_properties()
1840 	ret = device_property_read_u32(dev, "nuvoton,jack-eject-debounce",  in nau8824_read_device_properties()
1841 		&nau8824->jack_eject_debounce);  in nau8824_read_device_properties()
1843 		nau8824->jack_eject_debounce = 1;  in nau8824_read_device_properties()
1851 	struct device *dev = &i2c->dev;  in nau8824_i2c_probe()
1858 			return -ENOMEM;  in nau8824_i2c_probe()
1865 	nau8824->regmap = devm_regmap_init_i2c(i2c, &nau8824_regmap_config);  in nau8824_i2c_probe()
1866 	if (IS_ERR(nau8824->regmap))  in nau8824_i2c_probe()
1867 		return PTR_ERR(nau8824->regmap);  in nau8824_i2c_probe()
1868 	nau8824->dev = dev;  in nau8824_i2c_probe()
1869 	nau8824->irq = i2c->irq;  in nau8824_i2c_probe()
1870 	sema_init(&nau8824->jd_sem, 1);  in nau8824_i2c_probe()
1874 	ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value);  in nau8824_i2c_probe()
1880 	nau8824_reset_chip(nau8824->regmap);  in nau8824_i2c_probe()
1883 	if (i2c->irq)  in nau8824_i2c_probe()