3  * dmic.c  --  SoC audio for Generic Digital MICs
27 struct dmic {  struct
31 	/* Delay after DMIC mode switch */
39 	struct dmic *dmic = snd_soc_component_get_drvdata(component);  in dmic_daiops_trigger()  argument
43 		if (dmic->modeswitch_delay)  in dmic_daiops_trigger()
44 			mdelay(dmic->modeswitch_delay);  in dmic_daiops_trigger()
59 	struct dmic *dmic = snd_soc_component_get_drvdata(component);  in dmic_aif_event()  local
64 		if (dmic->gpio_en)  in dmic_aif_event()
65 			gpiod_set_value_cansleep(dmic->gpio_en, 1);  in dmic_aif_event()
67 		if (dmic->vref) {  in dmic_aif_event()
68 			ret = regulator_enable(dmic->vref);  in dmic_aif_event()
73 		if (dmic->wakeup_delay)  in dmic_aif_event()
74 			msleep(dmic->wakeup_delay);  in dmic_aif_event()
77 		if (dmic->gpio_en)  in dmic_aif_event()
78 			gpiod_set_value_cansleep(dmic->gpio_en, 0);  in dmic_aif_event()
80 		if (dmic->vref)  in dmic_aif_event()
81 			ret = regulator_disable(dmic->vref);  in dmic_aif_event()
90 	.name = "dmic-hifi",
110 	struct dmic *dmic;  in dmic_component_probe()  local
112 	dmic = devm_kzalloc(component->dev, sizeof(*dmic), GFP_KERNEL);  in dmic_component_probe()
113 	if (!dmic)  in dmic_component_probe()
116 	dmic->vref = devm_regulator_get_optional(component->dev, "vref");  in dmic_component_probe()
117 	if (IS_ERR(dmic->vref)) {  in dmic_component_probe()
118 		if (PTR_ERR(dmic->vref) != -ENODEV)  in dmic_component_probe()
119 			return dev_err_probe(component->dev, PTR_ERR(dmic->vref),  in dmic_component_probe()
121 		dmic->vref = NULL;  in dmic_component_probe()
124 	dmic->gpio_en = devm_gpiod_get_optional(component->dev,  in dmic_component_probe()
126 	if (IS_ERR(dmic->gpio_en))  in dmic_component_probe()
127 		return PTR_ERR(dmic->gpio_en);  in dmic_component_probe()
130 				 &dmic->wakeup_delay);  in dmic_component_probe()
132 				 &dmic->modeswitch_delay);  in dmic_component_probe()
134 		dmic->wakeup_delay  = wakeup_delay;  in dmic_component_probe()
136 		dmic->modeswitch_delay  = modeswitch_delay;  in dmic_component_probe()
138 	if (dmic->modeswitch_delay > MAX_MODESWITCH_DELAY)  in dmic_component_probe()
139 		dmic->modeswitch_delay = MAX_MODESWITCH_DELAY;  in dmic_component_probe()
141 	snd_soc_component_set_drvdata(component, dmic);  in dmic_component_probe()
147 	SND_SOC_DAPM_AIF_OUT_E("DMIC AIF", "Capture", 0,
150 	SND_SOC_DAPM_INPUT("DMic"),
154 	{"DMIC AIF", NULL, "DMic"},
196 MODULE_ALIAS("platform:dmic-codec");
199 	{.compatible = "dmic-codec"},
206 		.name = "dmic-codec",
214 MODULE_DESCRIPTION("Generic DMIC driver");