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()
512 		dev_dbg(nau8824->dev, "system clock control : POWER OFF\n");  in system_clock_control()
518 		if (nau8824_is_jack_inserted(nau8824)) {  in system_clock_control()
519 			nau8824_config_sysclk(nau8824,  in system_clock_control()
522 			nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);  in system_clock_control()
525 		clk_disable_unprepare(nau8824->mclk);  in system_clock_control()
527 		dev_dbg(nau8824->dev, "system clock control : POWER ON\n");  in system_clock_control()
529 		ret = clk_prepare_enable(nau8824->mclk);  in system_clock_control()
559 				nau8824_config_sysclk(nau8824,  in system_clock_control()
572 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in dmic_clock_control()  local
576 	freq = clk_get_rate(nau8824->mclk);  in dmic_clock_control()
578 		freq = nau8824->fs * 256;  in dmic_clock_control()
588 	dev_dbg(nau8824->dev, "dmic src %d for mclk %d\n", src, freq);  in dmic_clock_control()
589 	regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in dmic_clock_control()
825 static bool nau8824_is_jack_inserted(struct nau8824 *nau8824)  in nau8824_is_jack_inserted()  argument
827 	struct snd_soc_jack *jack = nau8824->jack;  in nau8824_is_jack_inserted()
830 	if (nau8824->irq && jack)  in nau8824_is_jack_inserted()
852 static void nau8824_eject_jack(struct nau8824 *nau8824)  in nau8824_eject_jack()  argument
854 	struct snd_soc_dapm_context *dapm = nau8824->dapm;  in nau8824_eject_jack()
855 	struct regmap *regmap = nau8824->regmap;  in nau8824_eject_jack()
880 		nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);  in nau8824_eject_jack()
885 	struct nau8824 *nau8824 = container_of(  in nau8824_jdet_work()  local
886 		work, struct nau8824, jdet_work);  in nau8824_jdet_work()
887 	struct snd_soc_dapm_context *dapm = nau8824->dapm;  in nau8824_jdet_work()
888 	struct regmap *regmap = nau8824->regmap;  in nau8824_jdet_work()
899 	dev_dbg(nau8824->dev, "SAR ADC data 0x%02x\n", adc_value);  in nau8824_jdet_work()
910 	snd_soc_jack_report(nau8824->jack, event, event_mask);  in nau8824_jdet_work()
917 	if (nau8824->resume_lock) {  in nau8824_jdet_work()
918 		nau8824_sema_release(nau8824);  in nau8824_jdet_work()
919 		nau8824->resume_lock = false;  in nau8824_jdet_work()
923 static void nau8824_setup_auto_irq(struct nau8824 *nau8824)  in nau8824_setup_auto_irq()  argument
925 	struct regmap *regmap = nau8824->regmap;  in nau8824_setup_auto_irq()
934 	if (nau8824->dapm->bias_level < SND_SOC_BIAS_PREPARE)  in nau8824_setup_auto_irq()
935 		nau8824_config_sysclk(nau8824, NAU8824_CLK_INTERNAL, 0);  in nau8824_setup_auto_irq()
968 	struct nau8824 *nau8824 = (struct nau8824 *)data;  in nau8824_interrupt()  local
969 	struct regmap *regmap = nau8824->regmap;  in nau8824_interrupt()
973 		dev_err(nau8824->dev, "failed to read irq status\n");  in nau8824_interrupt()
976 	dev_dbg(nau8824->dev, "IRQ %x\n", active_irq);  in nau8824_interrupt()
979 		nau8824_eject_jack(nau8824);  in nau8824_interrupt()
985 		if (nau8824->resume_lock) {  in nau8824_interrupt()
986 			nau8824_sema_release(nau8824);  in nau8824_interrupt()
987 			nau8824->resume_lock = false;  in nau8824_interrupt()
989 		cancel_work_sync(&nau8824->jdet_work);  in nau8824_interrupt()
1000 		dev_dbg(nau8824->dev, "button %x pressed\n", event);  in nau8824_interrupt()
1016 		cancel_work_sync(&nau8824->jdet_work);  in nau8824_interrupt()
1017 		schedule_work(&nau8824->jdet_work);  in nau8824_interrupt()
1022 		nau8824_setup_auto_irq(nau8824);  in nau8824_interrupt()
1031 		snd_soc_jack_report(nau8824->jack, event, event_mask);  in nau8824_interrupt()
1037 nau8824_get_osr(struct nau8824 *nau8824, int stream)  in nau8824_get_osr()  argument
1042 		regmap_read(nau8824->regmap,  in nau8824_get_osr()
1049 		regmap_read(nau8824->regmap,  in nau8824_get_osr()
1062 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_dai_startup()  local
1065 	osr = nau8824_get_osr(nau8824, substream->stream);  in nau8824_dai_startup()
1078 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_hw_params()  local
1083 	nau8824_sema_acquire(nau8824, HZ);  in nau8824_hw_params()
1091 	nau8824->fs = params_rate(params);  in nau8824_hw_params()
1092 	osr = nau8824_get_osr(nau8824, substream->stream);  in nau8824_hw_params()
1095 	if (nau8824->fs * osr->osr > CLK_DA_AD_MAX)  in nau8824_hw_params()
1098 		regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_hw_params()
1102 		regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_hw_params()
1107 	regmap_read(nau8824->regmap,  in nau8824_hw_params()
1111 		bclk_fs = snd_soc_params_to_bclk(params) / nau8824->fs;  in nau8824_hw_params()
1122 		regmap_update_bits(nau8824->regmap,  in nau8824_hw_params()
1145 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,  in nau8824_hw_params()
1150 	nau8824_sema_release(nau8824);  in nau8824_hw_params()
1158 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_fmt()  local
1202 	nau8824_sema_acquire(nau8824, HZ);  in nau8824_set_fmt()
1204 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_1,  in nau8824_set_fmt()
1207 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_I2S_PCM_CTRL_2,  in nau8824_set_fmt()
1210 	nau8824_sema_release(nau8824);  in nau8824_set_fmt()
1235 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_tdm_slot()  local
1256 	regmap_update_bits(nau8824->regmap, NAU8824_REG_TDM_CTRL,  in nau8824_set_tdm_slot()
1260 	regmap_update_bits(nau8824->regmap, NAU8824_REG_PORT0_LEFT_TIME_SLOT,  in nau8824_set_tdm_slot()
1376 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_pll()  local
1383 		dev_err(nau8824->dev, "Unsupported input clock %d\n", freq_in);  in nau8824_set_pll()
1386 	dev_dbg(nau8824->dev, "mclk_src=%x ratio=%x fll_frac=%x fll_int=%x clk_ref_div=%x\n",  in nau8824_set_pll()
1390 	nau8824_fll_apply(nau8824->regmap, &fll_param);  in nau8824_set_pll()
1392 	regmap_update_bits(nau8824->regmap, NAU8824_REG_CLK_DIVIDER,  in nau8824_set_pll()
1398 static int nau8824_config_sysclk(struct nau8824 *nau8824,  in nau8824_config_sysclk()  argument
1401 	struct regmap *regmap = nau8824->regmap;  in nau8824_config_sysclk()
1412 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1417 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1428 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1431 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1435 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1438 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1442 		nau8824_sema_acquire(nau8824, HZ);  in nau8824_config_sysclk()
1445 		nau8824_sema_release(nau8824);  in nau8824_config_sysclk()
1449 		dev_err(nau8824->dev, "Invalid clock id (%d)\n", clk_id);  in nau8824_config_sysclk()
1453 	dev_dbg(nau8824->dev, "Sysclk is %dHz and clock id is %d\n", freq,  in nau8824_config_sysclk()
1462 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_sysclk()  local
1464 	return nau8824_config_sysclk(nau8824, clk_id, freq);  in nau8824_set_sysclk()
1467 static void nau8824_resume_setup(struct nau8824 *nau8824)  in nau8824_resume_setup()  argument
1469 	nau8824_config_sysclk(nau8824, NAU8824_CLK_DIS, 0);  in nau8824_resume_setup()
1470 	if (nau8824->irq) {  in nau8824_resume_setup()
1472 		nau8824_int_status_clear_all(nau8824->regmap);  in nau8824_resume_setup()
1476 		regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,  in nau8824_resume_setup()
1478 		regmap_update_bits(nau8824->regmap,  in nau8824_resume_setup()
1482 		regmap_update_bits(nau8824->regmap,  in nau8824_resume_setup()
1491 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_set_bias_level()  local
1503 			nau8824_resume_setup(nau8824);  in nau8824_set_bias_level()
1508 		regmap_update_bits(nau8824->regmap,  in nau8824_set_bias_level()
1510 		regmap_update_bits(nau8824->regmap,  in nau8824_set_bias_level()
1521 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_component_probe()  local
1524 	nau8824->dapm = dapm;  in nau8824_component_probe()
1531 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_suspend()  local
1533 	if (nau8824->irq) {  in nau8824_suspend()
1534 		disable_irq(nau8824->irq);  in nau8824_suspend()
1537 	regcache_cache_only(nau8824->regmap, true);  in nau8824_suspend()
1538 	regcache_mark_dirty(nau8824->regmap);  in nau8824_suspend()
1545 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_resume()  local
1548 	regcache_cache_only(nau8824->regmap, false);  in nau8824_resume()
1549 	regcache_sync(nau8824->regmap);  in nau8824_resume()
1550 	if (nau8824->irq) {  in nau8824_resume()
1554 		nau8824->resume_lock = true;  in nau8824_resume()
1555 		ret = nau8824_sema_acquire(nau8824, 0);  in nau8824_resume()
1557 			nau8824->resume_lock = false;  in nau8824_resume()
1558 		enable_irq(nau8824->irq);  in nau8824_resume()
1640 	struct nau8824 *nau8824 = snd_soc_component_get_drvdata(component);  in nau8824_enable_jack_detect()  local
1643 	nau8824->jack = jack;  in nau8824_enable_jack_detect()
1645 	INIT_WORK(&nau8824->jdet_work, nau8824_jdet_work);  in nau8824_enable_jack_detect()
1646 	ret = devm_request_threaded_irq(nau8824->dev, nau8824->irq, NULL,  in nau8824_enable_jack_detect()
1648 		"nau8824", nau8824);  in nau8824_enable_jack_detect()
1650 		dev_err(nau8824->dev, "Cannot request irq %d (%d)\n",  in nau8824_enable_jack_detect()
1651 			nau8824->irq, ret);  in nau8824_enable_jack_detect()
1664 static void nau8824_setup_buttons(struct nau8824 *nau8824)  in nau8824_setup_buttons()  argument
1666 	struct regmap *regmap = nau8824->regmap;  in nau8824_setup_buttons()
1670 		nau8824->sar_voltage << NAU8824_SAR_TRACKING_GAIN_SFT);  in nau8824_setup_buttons()
1673 		nau8824->sar_compare_time << NAU8824_SAR_COMPARE_TIME_SFT);  in nau8824_setup_buttons()
1676 		nau8824->sar_sampling_time << NAU8824_SAR_SAMPLING_TIME_SFT);  in nau8824_setup_buttons()
1680 		(nau8824->sar_threshold_num - 1) << NAU8824_LEVELS_NR_SFT);  in nau8824_setup_buttons()
1683 		nau8824->sar_hysteresis << NAU8824_HYSTERESIS_SFT);  in nau8824_setup_buttons()
1686 		nau8824->key_debounce << NAU8824_SHORTKEY_DEBOUNCE_SFT);  in nau8824_setup_buttons()
1689 		(nau8824->sar_threshold[0] << 8) | nau8824->sar_threshold[1]);  in nau8824_setup_buttons()
1691 		(nau8824->sar_threshold[2] << 8) | nau8824->sar_threshold[3]);  in nau8824_setup_buttons()
1693 		(nau8824->sar_threshold[4] << 8) | nau8824->sar_threshold[5]);  in nau8824_setup_buttons()
1695 		(nau8824->sar_threshold[6] << 8) | nau8824->sar_threshold[7]);  in nau8824_setup_buttons()
1698 static void nau8824_init_regs(struct nau8824 *nau8824)  in nau8824_init_regs()  argument
1700 	struct regmap *regmap = nau8824->regmap;  in nau8824_init_regs()
1705 		(nau8824->vref_impedance << NAU8824_VMID_SEL_SFT));  in nau8824_init_regs()
1710 		NAU8824_MICBIAS_VOLTAGE_MASK, nau8824->micbias_voltage);  in nau8824_init_regs()
1790 		nau8824->jkdet_polarity ? 0 : NAU8824_JACK_LOGIC);  in nau8824_init_regs()
1793 		(nau8824->jack_eject_debounce << NAU8824_JACK_EJECT_DT_SFT));  in nau8824_init_regs()
1794 	if (nau8824->sar_threshold_num)  in nau8824_init_regs()
1795 		nau8824_setup_buttons(nau8824);  in nau8824_init_regs()
1798 static int nau8824_setup_irq(struct nau8824 *nau8824)  in nau8824_setup_irq()  argument
1801 	regmap_update_bits(nau8824->regmap, NAU8824_REG_ENA_CTRL,  in nau8824_setup_irq()
1803 	regmap_update_bits(nau8824->regmap,  in nau8824_setup_irq()
1805 	regmap_update_bits(nau8824->regmap, NAU8824_REG_INTERRUPT_SETTING_1,  in nau8824_setup_irq()
1811 static void nau8824_print_device_properties(struct nau8824 *nau8824)  in nau8824_print_device_properties()  argument
1813 	struct device *dev = nau8824->dev;  in nau8824_print_device_properties()
1816 	dev_dbg(dev, "jkdet-polarity:       %d\n", nau8824->jkdet_polarity);  in nau8824_print_device_properties()
1817 	dev_dbg(dev, "micbias-voltage:      %d\n", nau8824->micbias_voltage);  in nau8824_print_device_properties()
1818 	dev_dbg(dev, "vref-impedance:       %d\n", nau8824->vref_impedance);  in nau8824_print_device_properties()
1820 	dev_dbg(dev, "sar-threshold-num:    %d\n", nau8824->sar_threshold_num);  in nau8824_print_device_properties()
1821 	for (i = 0; i < nau8824->sar_threshold_num; i++)  in nau8824_print_device_properties()
1823 				nau8824->sar_threshold[i]);  in nau8824_print_device_properties()
1825 	dev_dbg(dev, "sar-hysteresis:       %d\n", nau8824->sar_hysteresis);  in nau8824_print_device_properties()
1826 	dev_dbg(dev, "sar-voltage:          %d\n", nau8824->sar_voltage);  in nau8824_print_device_properties()
1827 	dev_dbg(dev, "sar-compare-time:     %d\n", nau8824->sar_compare_time);  in nau8824_print_device_properties()
1828 	dev_dbg(dev, "sar-sampling-time:    %d\n", nau8824->sar_sampling_time);  in nau8824_print_device_properties()
1829 	dev_dbg(dev, "short-key-debounce:   %d\n", nau8824->key_debounce);  in nau8824_print_device_properties()
1831 			nau8824->jack_eject_debounce);  in nau8824_print_device_properties()
1835 	struct nau8824 *nau8824) {  in nau8824_read_device_properties()  argument
1839 		&nau8824->jkdet_polarity);  in nau8824_read_device_properties()
1841 		nau8824->jkdet_polarity = 1;  in nau8824_read_device_properties()
1843 		&nau8824->micbias_voltage);  in nau8824_read_device_properties()
1845 		nau8824->micbias_voltage = 6;  in nau8824_read_device_properties()
1847 		&nau8824->vref_impedance);  in nau8824_read_device_properties()
1849 		nau8824->vref_impedance = 2;  in nau8824_read_device_properties()
1851 		&nau8824->sar_threshold_num);  in nau8824_read_device_properties()
1853 		nau8824->sar_threshold_num = 4;  in nau8824_read_device_properties()
1855 		nau8824->sar_threshold, nau8824->sar_threshold_num);  in nau8824_read_device_properties()
1857 		nau8824->sar_threshold[0] = 0x0a;  in nau8824_read_device_properties()
1858 		nau8824->sar_threshold[1] = 0x14;  in nau8824_read_device_properties()
1859 		nau8824->sar_threshold[2] = 0x26;  in nau8824_read_device_properties()
1860 		nau8824->sar_threshold[3] = 0x73;  in nau8824_read_device_properties()
1863 		&nau8824->sar_hysteresis);  in nau8824_read_device_properties()
1865 		nau8824->sar_hysteresis = 0;  in nau8824_read_device_properties()
1867 		&nau8824->sar_voltage);  in nau8824_read_device_properties()
1869 		nau8824->sar_voltage = 6;  in nau8824_read_device_properties()
1871 		&nau8824->sar_compare_time);  in nau8824_read_device_properties()
1873 		nau8824->sar_compare_time = 1;  in nau8824_read_device_properties()
1875 		&nau8824->sar_sampling_time);  in nau8824_read_device_properties()
1877 		nau8824->sar_sampling_time = 1;  in nau8824_read_device_properties()
1879 		&nau8824->key_debounce);  in nau8824_read_device_properties()
1881 		nau8824->key_debounce = 0;  in nau8824_read_device_properties()
1883 		&nau8824->jack_eject_debounce);  in nau8824_read_device_properties()
1885 		nau8824->jack_eject_debounce = 1;  in nau8824_read_device_properties()
1887 	nau8824->mclk = devm_clk_get_optional(dev, "mclk");  in nau8824_read_device_properties()
1888 	if (IS_ERR(nau8824->mclk))  in nau8824_read_device_properties()
1889 		return PTR_ERR(nau8824->mclk);  in nau8824_read_device_properties()
1978 	struct nau8824 *nau8824 = dev_get_platdata(dev);  in nau8824_i2c_probe()  local
1981 	if (!nau8824) {  in nau8824_i2c_probe()
1982 		nau8824 = devm_kzalloc(dev, sizeof(*nau8824), GFP_KERNEL);  in nau8824_i2c_probe()
1983 		if (!nau8824)  in nau8824_i2c_probe()
1985 		ret = nau8824_read_device_properties(dev, nau8824);  in nau8824_i2c_probe()
1989 	i2c_set_clientdata(i2c, nau8824);  in nau8824_i2c_probe()
1991 	nau8824->regmap = devm_regmap_init_i2c(i2c, &nau8824_regmap_config);  in nau8824_i2c_probe()
1992 	if (IS_ERR(nau8824->regmap))  in nau8824_i2c_probe()
1993 		return PTR_ERR(nau8824->regmap);  in nau8824_i2c_probe()
1994 	nau8824->resume_lock = false;  in nau8824_i2c_probe()
1995 	nau8824->dev = dev;  in nau8824_i2c_probe()
1996 	nau8824->irq = i2c->irq;  in nau8824_i2c_probe()
1997 	sema_init(&nau8824->jd_sem, 1);  in nau8824_i2c_probe()
2002 		nau8824->jkdet_polarity = 0;  in nau8824_i2c_probe()
2004 	nau8824_print_device_properties(nau8824);  in nau8824_i2c_probe()
2006 	ret = regmap_read(nau8824->regmap, NAU8824_REG_I2C_DEVICE_ID, &value);  in nau8824_i2c_probe()
2012 	nau8824_reset_chip(nau8824->regmap);  in nau8824_i2c_probe()
2013 	nau8824_init_regs(nau8824);  in nau8824_i2c_probe()
2016 		nau8824_setup_irq(nau8824);  in nau8824_i2c_probe()