39 static int nau8824_config_sysclk(struct nau8824 *nau8824,
41 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824);
206 static int nau8824_sema_acquire(struct nau8824 *nau8824, long timeout)  in nau8824_sema_acquire()  argument
211 		ret = down_timeout(&nau8824->jd_sem, timeout);  in nau8824_sema_acquire()
213 			dev_warn(nau8824->dev, "Acquire semaphore timeout\n");  in nau8824_sema_acquire()
215 		ret = down_interruptible(&nau8824->jd_sem);  in nau8824_sema_acquire()
217 			dev_warn(nau8824->dev, "Acquire semaphore fail\n");  in nau8824_sema_acquire()
223 static inline void nau8824_sema_release(struct nau8824 *nau8824)  in nau8824_sema_release()  argument
225 	up(&nau8824->jd_sem);  in nau8824_sema_release()
432 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_output_dac_event()  local
437 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,  in nau8824_output_dac_event()
441 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENABLE_LO,  in nau8824_output_dac_event()
455 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_spk_event()  local
459 		regmap_update_bits(nau8824->regmap,  in nau8824_spk_event()
464 		regmap_update_bits(nau8824->regmap,  in nau8824_spk_event()
479 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_pump_event()  local
485 		regmap_update_bits(nau8824->regmap,  in nau8824_pump_event()
490 		regmap_update_bits(nau8824->regmap,  in nau8824_pump_event()
505 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in system_clock_control()  local
506 	struct regmap *regmap = nau8824->regmap;  in system_clock_control()
511 		dev_dbg(nau8824->dev, "system clock control : POWER OFF\n");  in system_clock_control()
517 		if (nau8824_is_jack_inserted(nau8824)) {  in system_clock_control()
518 			nau8824_config_sysclk(nau8824,  in system_clock_control()
521 			nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);  in system_clock_control()
524 		dev_dbg(nau8824->dev, "system clock control : POWER ON\n");  in system_clock_control()
551 				nau8824_config_sysclk(nau8824,  in system_clock_control()
564 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in dmic_clock_control()  local
572 		if ((0x1 << (8 - src)) * nau8824->fs <= DMIC_CLK)  in dmic_clock_control()
575 	dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, nau8824->fs * 256);  in dmic_clock_control()
576 	regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in dmic_clock_control()
812 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824)  in nau8824_is_jack_inserted()  argument
814 	struct snd_soc_jack *jack = nau8824->jack;  in nau8824_is_jack_inserted()
817 	if (nau8824->irq && jack)  in nau8824_is_jack_inserted()
839 static void nau8824_eject_jack(struct nau8824 *nau8824)  in nau8824_eject_jack()  argument
841 	struct snd_soc_dapm_context *dapm = nau8824->dapm;  in nau8824_eject_jack()
842 	struct regmap *regmap = nau8824->regmap;  in nau8824_eject_jack()
867 		nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);  in nau8824_eject_jack()
872 	struct nau8824 *nau8824 = container_of(  in nau8824_jdet_work()  local
873 		work, struct nau8824, jdet_work);  in nau8824_jdet_work()
874 	struct snd_soc_dapm_context *dapm = nau8824->dapm;  in nau8824_jdet_work()
875 	struct regmap *regmap = nau8824->regmap;  in nau8824_jdet_work()
886 	dev_dbg(nau8824->dev, "SAR ADC data 0x%02x\n", adc_value);  in nau8824_jdet_work()
897 	snd_soc_jack_report(nau8824->jack, event, event_mask);  in nau8824_jdet_work()
904 	if (nau8824->resume_lock) {  in nau8824_jdet_work()
905 		nau8824_sema_release(nau8824);  in nau8824_jdet_work()
906 		nau8824->resume_lock = false;  in nau8824_jdet_work()
910 static void nau8824_setup_auto_irq(struct nau8824 *nau8824)  in nau8824_setup_auto_irq()  argument
912 	struct regmap *regmap = nau8824->regmap;  in nau8824_setup_auto_irq()
921 	if (nau8824->dapm->bias_level < SND_SOC_BIAS_PREPARE)  in nau8824_setup_auto_irq()
922 		nau8824_config_sysclk(nau8824, NAU8824_CLK_INTERNAL, 0);  in nau8824_setup_auto_irq()
955 	struct nau8824 *nau8824 = (struct nau8824 *)data;  in nau8824_interrupt()  local
956 	struct regmap *regmap = nau8824->regmap;  in nau8824_interrupt()
960 		dev_err(nau8824->dev, "failed to read irq status\n");  in nau8824_interrupt()
963 	dev_dbg(nau8824->dev, "IRQ %x\n", active_irq);  in nau8824_interrupt()
966 		nau8824_eject_jack(nau8824);  in nau8824_interrupt()
972 		if (nau8824->resume_lock) {  in nau8824_interrupt()
973 			nau8824_sema_release(nau8824);  in nau8824_interrupt()
974 			nau8824->resume_lock = false;  in nau8824_interrupt()
976 		cancel_work_sync(&nau8824->jdet_work);  in nau8824_interrupt()
987 		dev_dbg(nau8824->dev, "button %x pressed\n", event);  in nau8824_interrupt()
1003 		cancel_work_sync(&nau8824->jdet_work);  in nau8824_interrupt()
1004 		schedule_work(&nau8824->jdet_work);  in nau8824_interrupt()
1009 		nau8824_setup_auto_irq(nau8824);  in nau8824_interrupt()
1018 		snd_soc_jack_report(nau8824->jack, event, event_mask);  in nau8824_interrupt()
1024 nau8824_get_osr(struct nau8824 *nau8824, int stream)  in nau8824_get_osr()  argument
1029 		regmap_read(nau8824->regmap,  in nau8824_get_osr()
1036 		regmap_read(nau8824->regmap,  in nau8824_get_osr()
1049 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_dai_startup()  local
1052 	osr = nau8824_get_osr(nau8824, substream->stream);  in nau8824_dai_startup()
1065 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_hw_params()  local
1070 	nau8824_sema_acquire(nau8824, HZ);  in nau8824_hw_params()
1078 	nau8824->fs = params_rate(params);  in nau8824_hw_params()
1079 	osr = nau8824_get_osr(nau8824, substream->stream);  in nau8824_hw_params()
1082 	if (nau8824->fs * osr->osr > CLK_DA_AD_MAX)  in nau8824_hw_params()
1085 		regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_hw_params()
1089 		regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_hw_params()
1094 	regmap_read(nau8824->regmap,  in nau8824_hw_params()
1098 		bclk_fs = snd_soc_params_to_bclk(params) / nau8824->fs;  in nau8824_hw_params()
1109 		regmap_update_bits(nau8824->regmap,  in nau8824_hw_params()
1132 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,  in nau8824_hw_params()
1137 	nau8824_sema_release(nau8824);  in nau8824_hw_params()
1145 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_fmt()  local
1189 	nau8824_sema_acquire(nau8824, HZ);  in nau8824_set_fmt()
1191 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,  in nau8824_set_fmt()
1194 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2,  in nau8824_set_fmt()
1197 	nau8824_sema_release(nau8824);  in nau8824_set_fmt()
1222 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_tdm_slot()  local
1243 	regmap_update_bits(nau8824->regmap, NAU8824_REG_TDM_CTRL,  in nau8824_set_tdm_slot()
1247 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_LEFT_TIME_SLOT,  in nau8824_set_tdm_slot()
1363 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_pll()  local
1370 		dev_err(nau8824->dev, "Unsupported input clock %d\n", freq_in);  in nau8824_set_pll()
1373 	dev_dbg(nau8824->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n",  in nau8824_set_pll()
1377 	nau8824_fll_apply(nau8824->regmap, &fll_param);  in nau8824_set_pll()
1379 	regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_set_pll()
1385 static int nau8824_config_sysclk(struct nau8824 *nau8824,  in nau8824_config_sysclk()  argument
1388 	struct regmap *regmap = nau8824->regmap;  in nau8824_config_sysclk()
1399 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1404 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1415 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1418 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1422 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1425 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1429 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1432 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1436 		dev_err(nau8824->dev, "Invalid clock id (%d)\n", clk_id);  in nau8824_config_sysclk()
1440 	dev_dbg(nau8824->dev, "Sysclk is %dHz and clock id is %d\n", freq,  in nau8824_config_sysclk()
1449 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_sysclk()  local
1451 	return nau8824_config_sysclk(nau8824, clk_id, freq);  in nau8824_set_sysclk()
1454 static void nau8824_resume_setup(struct nau8824 *nau8824)  in nau8824_resume_setup()  argument
1456 	nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);  in nau8824_resume_setup()
1457 	if (nau8824->irq) {  in nau8824_resume_setup()
1459 		nau8824_int_status_clear_all(nau8824->regmap);  in nau8824_resume_setup()
1463 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,  in nau8824_resume_setup()
1465 		regmap_update_bits(nau8824->regmap,  in nau8824_resume_setup()
1469 		regmap_update_bits(nau8824->regmap,  in nau8824_resume_setup()
1478 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_bias_level()  local
1490 			nau8824_resume_setup(nau8824);  in nau8824_set_bias_level()
1495 		regmap_update_bits(nau8824->regmap,  in nau8824_set_bias_level()
1497 		regmap_update_bits(nau8824->regmap,  in nau8824_set_bias_level()
1508 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_component_probe()  local
1511 	nau8824->dapm = dapm;  in nau8824_component_probe()
1518 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_suspend()  local
1520 	if (nau8824->irq) {  in nau8824_suspend()
1521 		disable_irq(nau8824->irq);  in nau8824_suspend()
1524 	regcache_cache_only(nau8824->regmap, true);  in nau8824_suspend()
1525 	regcache_mark_dirty(nau8824->regmap);  in nau8824_suspend()
1532 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_resume()  local
1535 	regcache_cache_only(nau8824->regmap, false);  in nau8824_resume()
1536 	regcache_sync(nau8824->regmap);  in nau8824_resume()
1537 	if (nau8824->irq) {  in nau8824_resume()
1541 		nau8824->resume_lock = true;  in nau8824_resume()
1542 		ret = nau8824_sema_acquire(nau8824, 0);  in nau8824_resume()
1544 			nau8824->resume_lock = false;  in nau8824_resume()
1545 		enable_irq(nau8824->irq);  in nau8824_resume()
1627 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_enable_jack_detect()  local
1630 	nau8824->jack = jack;  in nau8824_enable_jack_detect()
1632 	INIT_WORK(&nau8824->jdet_work, nau8824_jdet_work);  in nau8824_enable_jack_detect()
1633 	ret = devm_request_threaded_irq(nau8824->dev, nau8824->irq, NULL,  in nau8824_enable_jack_detect()
1635 		"nau8824", nau8824);  in nau8824_enable_jack_detect()
1637 		dev_err(nau8824->dev, "Cannot request irq %d (%d)\n",  in nau8824_enable_jack_detect()
1638 			nau8824->irq, ret);  in nau8824_enable_jack_detect()
1651 static void nau8824_setup_buttons(struct nau8824 *nau8824)  in nau8824_setup_buttons()  argument
1653 	struct regmap *regmap = nau8824->regmap;  in nau8824_setup_buttons()
1657 		nau8824->sar_voltage << NAU8824_SAR_TRACKING_GAIN_SFT);  in nau8824_setup_buttons()
1660 		nau8824->sar_compare_time << NAU8824_SAR_COMPARE_TIME_SFT);  in nau8824_setup_buttons()
1663 		nau8824->sar_sampling_time << NAU8824_SAR_SAMPLING_TIME_SFT);  in nau8824_setup_buttons()
1667 		(nau8824->sar_threshold_num - 1) << NAU8824_LEVELS_NR_SFT);  in nau8824_setup_buttons()
1670 		nau8824->sar_hysteresis << NAU8824_HYSTERESIS_SFT);  in nau8824_setup_buttons()
1673 		nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT);  in nau8824_setup_buttons()
1676 		(nau8824->sar_threshold[0] << 8) | nau8824->sar_threshold[1]);  in nau8824_setup_buttons()
1678 		(nau8824->sar_threshold[2] << 8) | nau8824->sar_threshold[3]);  in nau8824_setup_buttons()
1680 		(nau8824->sar_threshold[4] << 8) | nau8824->sar_threshold[5]);  in nau8824_setup_buttons()
1682 		(nau8824->sar_threshold[6] << 8) | nau8824->sar_threshold[7]);  in nau8824_setup_buttons()
1685 static void nau8824_init_regs(struct nau8824 *nau8824)  in nau8824_init_regs()  argument
1687 	struct regmap *regmap = nau8824->regmap;  in nau8824_init_regs()
1692 		(nau8824->vref_impedance << NAU8824_VMID_SEL_SFT));  in nau8824_init_regs()
1697 		NAU8824_MICBIAS_VOLTAGE_MASK, nau8824->micbias_voltage);  in nau8824_init_regs()
1777 		nau8824->jkdet_polarity ? 0 : NAU8824_JACK_LOGIC);  in nau8824_init_regs()
1780 		(nau8824->jack_eject_debounce << NAU8824_JACK_EJECT_DT_SFT));  in nau8824_init_regs()
1781 	if (nau8824->sar_threshold_num)  in nau8824_init_regs()
1782 		nau8824_setup_buttons(nau8824);  in nau8824_init_regs()
1785 static int nau8824_setup_irq(struct nau8824 *nau8824)  in nau8824_setup_irq()  argument
1788 	regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,  in nau8824_setup_irq()
1790 	regmap_update_bits(nau8824->regmap,  in nau8824_setup_irq()
1792 	regmap_update_bits(nau8824->regmap, NAU8824_REG_INTERRUPT_SETTING_1,  in nau8824_setup_irq()
1798 static void nau8824_print_device_properties(struct nau8824 *nau8824)  in nau8824_print_device_properties()  argument
1800 	struct device *dev = nau8824->dev;  in nau8824_print_device_properties()
1803 	dev_dbg(dev, "jkdet-polarity:       %d\n", nau8824->jkdet_polarity);  in nau8824_print_device_properties()
1804 	dev_dbg(dev, "micbias-voltage:      %d\n", nau8824->micbias_voltage);  in nau8824_print_device_properties()
1805 	dev_dbg(dev, "vref-impedance:       %d\n", nau8824->vref_impedance);  in nau8824_print_device_properties()
1807 	dev_dbg(dev, "sar-threshold-num:    %d\n", nau8824->sar_threshold_num);  in nau8824_print_device_properties()
1808 	for (i = 0; i < nau8824->sar_threshold_num; i++)  in nau8824_print_device_properties()
1810 				nau8824->sar_threshold[i]);  in nau8824_print_device_properties()
1812 	dev_dbg(dev, "sar-hysteresis:       %d\n", nau8824->sar_hysteresis);  in nau8824_print_device_properties()
1813 	dev_dbg(dev, "sar-voltage:          %d\n", nau8824->sar_voltage);  in nau8824_print_device_properties()
1814 	dev_dbg(dev, "sar-compare-time:     %d\n", nau8824->sar_compare_time);  in nau8824_print_device_properties()
1815 	dev_dbg(dev, "sar-sampling-time:    %d\n", nau8824->sar_sampling_time);  in nau8824_print_device_properties()
1816 	dev_dbg(dev, "short-key-debounce:   %d\n", nau8824->key_debounce);  in nau8824_print_device_properties()
1818 			nau8824->jack_eject_debounce);  in nau8824_print_device_properties()
1822 	struct nau8824 *nau8824) {  in nau8824_read_device_properties()  argument
1826 		&nau8824->jkdet_polarity);  in nau8824_read_device_properties()
1828 		nau8824->jkdet_polarity = 1;  in nau8824_read_device_properties()
1830 		&nau8824->micbias_voltage);  in nau8824_read_device_properties()
1832 		nau8824->micbias_voltage = 6;  in nau8824_read_device_properties()
1834 		&nau8824->vref_impedance);  in nau8824_read_device_properties()
1836 		nau8824->vref_impedance = 2;  in nau8824_read_device_properties()
1838 		&nau8824->sar_threshold_num);  in nau8824_read_device_properties()
1840 		nau8824->sar_threshold_num = 4;  in nau8824_read_device_properties()
1842 		nau8824->sar_threshold, nau8824->sar_threshold_num);  in nau8824_read_device_properties()
1844 		nau8824->sar_threshold[0] = 0x0a;  in nau8824_read_device_properties()
1845 		nau8824->sar_threshold[1] = 0x14;  in nau8824_read_device_properties()
1846 		nau8824->sar_threshold[2] = 0x26;  in nau8824_read_device_properties()
1847 		nau8824->sar_threshold[3] = 0x73;  in nau8824_read_device_properties()
1850 		&nau8824->sar_hysteresis);  in nau8824_read_device_properties()
1852 		nau8824->sar_hysteresis = 0;  in nau8824_read_device_properties()
1854 		&nau8824->sar_voltage);  in nau8824_read_device_properties()
1856 		nau8824->sar_voltage = 6;  in nau8824_read_device_properties()
1858 		&nau8824->sar_compare_time);  in nau8824_read_device_properties()
1860 		nau8824->sar_compare_time = 1;  in nau8824_read_device_properties()
1862 		&nau8824->sar_sampling_time);  in nau8824_read_device_properties()
1864 		nau8824->sar_sampling_time = 1;  in nau8824_read_device_properties()
1866 		&nau8824->key_debounce);  in nau8824_read_device_properties()
1868 		nau8824->key_debounce = 0;  in nau8824_read_device_properties()
1870 		&nau8824->jack_eject_debounce);  in nau8824_read_device_properties()
1872 		nau8824->jack_eject_debounce = 1;  in nau8824_read_device_properties()
1937 	struct nau8824 *nau8824 = dev_get_platdata(dev);  in nau8824_i2c_probe()  local
1940 	if (!nau8824) {  in nau8824_i2c_probe()
1941 		nau8824 = devm_kzalloc(dev, sizeof(*nau8824), GFP_KERNEL);  in nau8824_i2c_probe()
1942 		if (!nau8824)  in nau8824_i2c_probe()
1944 		ret = nau8824_read_device_properties(dev, nau8824);  in nau8824_i2c_probe()
1948 	i2c_set_clientdata(i2c, nau8824);  in nau8824_i2c_probe()
1950 	nau8824->regmap = devm_regmap_init_i2c(i2c, &nau8824_regmap_config);  in nau8824_i2c_probe()
1951 	if (IS_ERR(nau8824->regmap))  in nau8824_i2c_probe()
1952 		return PTR_ERR(nau8824->regmap);  in nau8824_i2c_probe()
1953 	nau8824->resume_lock = false;  in nau8824_i2c_probe()
1954 	nau8824->dev = dev;  in nau8824_i2c_probe()
1955 	nau8824->irq = i2c->irq;  in nau8824_i2c_probe()
1956 	sema_init(&nau8824->jd_sem, 1);  in nau8824_i2c_probe()
1961 		nau8824->jkdet_polarity = 0;  in nau8824_i2c_probe()
1963 	nau8824_print_device_properties(nau8824);  in nau8824_i2c_probe()
1965 	ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value);  in nau8824_i2c_probe()
1971 	nau8824_reset_chip(nau8824->regmap);  in nau8824_i2c_probe()
1972 	nau8824_init_regs(nau8824);  in nau8824_i2c_probe()
1975 		nau8824_setup_irq(nau8824);  in nau8824_i2c_probe()