1 // SPDX-License-Identifier: GPL-2.0
3 // Audio driver for AK5558 ADC
21 #include <sound/soc-dapm.h>
63 	"Sharp Roll-Off", "Show Roll-Off",
64 	"Short Delay Sharp Roll-Off", "Short Delay Show Roll-Off",
88 	SND_SOC_DAPM_ADC("ADC Ch1", NULL, AK5558_00_POWER_MANAGEMENT1, 0, 0),
89 	SND_SOC_DAPM_ADC("ADC Ch2", NULL, AK5558_00_POWER_MANAGEMENT1, 1, 0),
90 	SND_SOC_DAPM_ADC("ADC Ch3", NULL, AK5558_00_POWER_MANAGEMENT1, 2, 0),
91 	SND_SOC_DAPM_ADC("ADC Ch4", NULL, AK5558_00_POWER_MANAGEMENT1, 3, 0),
92 	SND_SOC_DAPM_ADC("ADC Ch5", NULL, AK5558_00_POWER_MANAGEMENT1, 4, 0),
93 	SND_SOC_DAPM_ADC("ADC Ch6", NULL, AK5558_00_POWER_MANAGEMENT1, 5, 0),
94 	SND_SOC_DAPM_ADC("ADC Ch7", NULL, AK5558_00_POWER_MANAGEMENT1, 6, 0),
95 	SND_SOC_DAPM_ADC("ADC Ch8", NULL, AK5558_00_POWER_MANAGEMENT1, 7, 0),
101 	{"ADC Ch1", NULL, "AIN1"},
102 	{"SDTO", NULL, "ADC Ch1"},
104 	{"ADC Ch2", NULL, "AIN2"},
105 	{"SDTO", NULL, "ADC Ch2"},
107 	{"ADC Ch3", NULL, "AIN3"},
108 	{"SDTO", NULL, "ADC Ch3"},
110 	{"ADC Ch4", NULL, "AIN4"},
111 	{"SDTO", NULL, "ADC Ch4"},
113 	{"ADC Ch5", NULL, "AIN5"},
114 	{"SDTO", NULL, "ADC Ch5"},
116 	{"ADC Ch6", NULL, "AIN6"},
117 	{"SDTO", NULL, "ADC Ch6"},
119 	{"ADC Ch7", NULL, "AIN7"},
120 	{"SDTO", NULL, "ADC Ch7"},
122 	{"ADC Ch8", NULL, "AIN8"},
123 	{"SDTO", NULL, "ADC Ch8"},
136 	struct snd_soc_component *component = dai->component;  in ak5558_hw_params()
139 	int pcm_width = max(params_physical_width(params), ak5558->slot_width);  in ak5558_hw_params()
149 		return -EINVAL;  in ak5558_hw_params()
159 	struct snd_soc_component *component = dai->component;  in ak5558_set_dai_fmt()
170 		dev_err(dai->dev, "Clock mode unsupported");  in ak5558_set_dai_fmt()
171 		return -EINVAL;  in ak5558_set_dai_fmt()
186 		return -EINVAL;  in ak5558_set_dai_fmt()
198 	struct snd_soc_component *component = dai->component;  in ak5558_set_tdm_slot()
202 	ak5558->slots = slots;  in ak5558_set_tdm_slot()
203 	ak5558->slot_width = slot_width;  in ak5558_set_tdm_slot()
245 	return snd_pcm_hw_constraint_list(substream->runtime, 0,  in ak5558_startup()
259 	.name = "ak5558-aif",
272 	if (!ak5558->reset_gpiod)  in ak5558_power_off()
275 	gpiod_set_value_cansleep(ak5558->reset_gpiod, 1);  in ak5558_power_off()
281 	if (!ak5558->reset_gpiod)  in ak5558_power_on()
284 	gpiod_set_value_cansleep(ak5558->reset_gpiod, 0);  in ak5558_power_on()
303 static int __maybe_unused ak5558_runtime_suspend(struct device *dev)  in ak5558_runtime_suspend()  argument
305 	struct ak5558_priv *ak5558 = dev_get_drvdata(dev);  in ak5558_runtime_suspend()
307 	regcache_cache_only(ak5558->regmap, true);  in ak5558_runtime_suspend()
310 	regulator_bulk_disable(ARRAY_SIZE(ak5558->supplies),  in ak5558_runtime_suspend()
311 			       ak5558->supplies);  in ak5558_runtime_suspend()
315 static int __maybe_unused ak5558_runtime_resume(struct device *dev)  in ak5558_runtime_resume()  argument
317 	struct ak5558_priv *ak5558 = dev_get_drvdata(dev);  in ak5558_runtime_resume()
320 	ret = regulator_bulk_enable(ARRAY_SIZE(ak5558->supplies),  in ak5558_runtime_resume()
321 				    ak5558->supplies);  in ak5558_runtime_resume()
323 		dev_err(dev, "Failed to enable supplies: %d\n", ret);  in ak5558_runtime_resume()
330 	regcache_cache_only(ak5558->regmap, false);  in ak5558_runtime_resume()
331 	regcache_mark_dirty(ak5558->regmap);  in ak5558_runtime_resume()
333 	return regcache_sync(ak5558->regmap);  in ak5558_runtime_resume()
373 	ak5558 = devm_kzalloc(&i2c->dev, sizeof(*ak5558), GFP_KERNEL);  in ak5558_i2c_probe()
375 		return -ENOMEM;  in ak5558_i2c_probe()
377 	ak5558->regmap = devm_regmap_init_i2c(i2c, &ak5558_regmap);  in ak5558_i2c_probe()
378 	if (IS_ERR(ak5558->regmap))  in ak5558_i2c_probe()
379 		return PTR_ERR(ak5558->regmap);  in ak5558_i2c_probe()
382 	ak5558->i2c = i2c;  in ak5558_i2c_probe()
384 	ak5558->reset_gpiod = devm_gpiod_get_optional(&i2c->dev, "reset",  in ak5558_i2c_probe()
386 	if (IS_ERR(ak5558->reset_gpiod))  in ak5558_i2c_probe()
387 		return PTR_ERR(ak5558->reset_gpiod);  in ak5558_i2c_probe()
389 	for (i = 0; i < ARRAY_SIZE(ak5558->supplies); i++)  in ak5558_i2c_probe()
390 		ak5558->supplies[i].supply = ak5558_supply_names[i];  in ak5558_i2c_probe()
392 	ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(ak5558->supplies),  in ak5558_i2c_probe()
393 				      ak5558->supplies);  in ak5558_i2c_probe()
395 		dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);  in ak5558_i2c_probe()
399 	ret = devm_snd_soc_register_component(&i2c->dev,  in ak5558_i2c_probe()
405 	pm_runtime_enable(&i2c->dev);  in ak5558_i2c_probe()
406 	regcache_cache_only(ak5558->regmap, true);  in ak5558_i2c_probe()
413 	pm_runtime_disable(&i2c->dev);  in ak5558_i2c_remove()
419 	{ .compatible = "asahi-kasei,ak5558"},
436 MODULE_AUTHOR("Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>");
438 MODULE_DESCRIPTION("ASoC AK5558 ADC driver");