3 // Audio driver for AK4458 DAC
23 #include "ak4458.h"
32 	AK4458 = 0,  enumerator
42 /* AK4458 Codec Private Data */
191 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);  in get_digfil()  local
193 	ucontrol->value.enumerated.item[0] = ak4458->digfil;  in get_digfil()
202 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);  in set_digfil()  local
209 	ak4458->digfil = num;  in set_digfil()
214 			    ((ak4458->digfil & 0x02) << 4));  in set_digfil()
219 			    (ak4458->digfil & 0x01));  in set_digfil()
224 			    ((ak4458->digfil & 0x04) >> 2));  in set_digfil()
238 	SOC_ENUM("AK4458 De-emphasis Response DAC1", ak4458_dac1_dem_enum),
239 	SOC_ENUM("AK4458 De-emphasis Response DAC2", ak4458_dac2_dem_enum),
240 	SOC_ENUM("AK4458 De-emphasis Response DAC3", ak4458_dac3_dem_enum),
241 	SOC_ENUM("AK4458 De-emphasis Response DAC4", ak4458_dac4_dem_enum),
242 	SOC_ENUM_EXT("AK4458 Digital Filter Setting", ak4458_digfil_enum,
244 	SOC_ENUM("AK4458 Inverting Enable of DZFB", ak4458_dzfb_enum),
245 	SOC_ENUM("AK4458 Sound Mode", ak4458_sm_enum),
246 	SOC_ENUM("AK4458 FIR Filter Mode Setting", ak4458_fir_enum),
247 	SOC_ENUM("AK4458 Attenuation transition Time Setting",
249 	SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum),
252 /* ak4458 dapm widgets */
254 	SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),/*pw*/
255 	SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
256 	SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"),
258 	SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),/*pw*/
259 	SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"),
261 	SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),/*pw*/
262 	SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"),
264 	SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),/*pw*/
265 	SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"),
269 	{"AK4458 DAC1",		NULL,	"AK4458 SDTI"},
270 	{"AK4458 AOUTA",	NULL,	"AK4458 DAC1"},
272 	{"AK4458 DAC2",		NULL,	"AK4458 SDTI"},
273 	{"AK4458 AOUTB",	NULL,	"AK4458 DAC2"},
275 	{"AK4458 DAC3",		NULL,	"AK4458 SDTI"},
276 	{"AK4458 AOUTC",	NULL,	"AK4458 DAC3"},
278 	{"AK4458 DAC4",		NULL,	"AK4458 SDTI"},
279 	{"AK4458 AOUTD",	NULL,	"AK4458 DAC4"},
309 static int ak4458_get_tdm_mode(struct ak4458_priv *ak4458)  in ak4458_get_tdm_mode()  argument
311 	switch (ak4458->slots * ak4458->slot_width) {  in ak4458_get_tdm_mode()
348 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);  in ak4458_hw_params()  local
349 	int pcm_width = max(params_physical_width(params), ak4458->slot_width);  in ak4458_hw_params()
354 	ak4458->fs = nfs1;  in ak4458_hw_params()
381 			if (ak4458->drvdata->type == AK4497) {  in ak4458_hw_params()
406 		if (ak4458->fmt == SND_SOC_DAIFMT_I2S)  in ak4458_hw_params()
412 		switch (ak4458->fmt) {  in ak4458_hw_params()
443 	dchn = ak4458_get_tdm_mode(ak4458) &&  in ak4458_hw_params()
444 		(ak4458->fmt == SND_SOC_DAIFMT_DSP_B) &&  in ak4458_hw_params()
450 	if (ak4458->drvdata->type == AK4497) {  in ak4458_hw_params()
452 						    0x4, (ak4458->dsd_path << 2));  in ak4458_hw_params()
471 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);  in ak4458_set_dai_fmt()  local
491 		ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;  in ak4458_set_dai_fmt()
502 				      ak4458->fmt == SND_SOC_DAIFMT_PDM ?  in ak4458_set_dai_fmt()
521 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);  in ak4458_set_dai_mute()  local
525 	nfs = ak4458->fs;  in ak4458_set_dai_mute()
535 		if (ak4458->mute_gpiod)  in ak4458_set_dai_mute()
536 			gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);  in ak4458_set_dai_mute()
538 		if (ak4458->mute_gpiod)  in ak4458_set_dai_mute()
539 			gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);  in ak4458_set_dai_mute()
551 	struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);  in ak4458_set_tdm_slot()  local
554 	ak4458->slots = slots;  in ak4458_set_tdm_slot()
555 	ak4458->slot_width = slot_width;  in ak4458_set_tdm_slot()
557 	mode = ak4458_get_tdm_mode(ak4458) << AK4458_MODE_SHIFT;  in ak4458_set_tdm_slot()
608 	.name = "ak4458-aif",
631 static void ak4458_reset(struct ak4458_priv *ak4458, bool active)  in ak4458_reset()  argument
633 	if (!IS_ERR_OR_NULL(ak4458->reset)) {  in ak4458_reset()
635 			reset_control_assert(ak4458->reset);  in ak4458_reset()
637 			reset_control_deassert(ak4458->reset);  in ak4458_reset()
645 	struct ak4458_priv *ak4458 = dev_get_drvdata(dev);  in ak4458_runtime_suspend()  local
647 	regcache_cache_only(ak4458->regmap, true);  in ak4458_runtime_suspend()
649 	ak4458_reset(ak4458, true);  in ak4458_runtime_suspend()
651 	if (ak4458->mute_gpiod)  in ak4458_runtime_suspend()
652 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);  in ak4458_runtime_suspend()
654 	regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies),  in ak4458_runtime_suspend()
655 			       ak4458->supplies);  in ak4458_runtime_suspend()
661 	struct ak4458_priv *ak4458 = dev_get_drvdata(dev);  in ak4458_runtime_resume()  local
664 	ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies),  in ak4458_runtime_resume()
665 				    ak4458->supplies);  in ak4458_runtime_resume()
667 		dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret);  in ak4458_runtime_resume()
671 	if (ak4458->mute_gpiod)  in ak4458_runtime_resume()
672 		gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);  in ak4458_runtime_resume()
674 	ak4458_reset(ak4458, false);  in ak4458_runtime_resume()
676 	regcache_cache_only(ak4458->regmap, false);  in ak4458_runtime_resume()
677 	regcache_mark_dirty(ak4458->regmap);  in ak4458_runtime_resume()
679 	return regcache_sync(ak4458->regmap);  in ak4458_runtime_resume()
720 	.type = AK4458,
737 	struct ak4458_priv *ak4458;  in ak4458_i2c_probe()  local
740 	ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL);  in ak4458_i2c_probe()
741 	if (!ak4458)  in ak4458_i2c_probe()
744 	ak4458->regmap = devm_regmap_init_i2c(i2c, &ak4458_regmap);  in ak4458_i2c_probe()
745 	if (IS_ERR(ak4458->regmap))  in ak4458_i2c_probe()
746 		return PTR_ERR(ak4458->regmap);  in ak4458_i2c_probe()
748 	i2c_set_clientdata(i2c, ak4458);  in ak4458_i2c_probe()
749 	ak4458->dev = &i2c->dev;  in ak4458_i2c_probe()
751 	ak4458->drvdata = of_device_get_match_data(&i2c->dev);  in ak4458_i2c_probe()
753 	ak4458->reset = devm_reset_control_get_optional_shared(ak4458->dev, NULL);  in ak4458_i2c_probe()
754 	if (IS_ERR(ak4458->reset))  in ak4458_i2c_probe()
755 		return PTR_ERR(ak4458->reset);  in ak4458_i2c_probe()
757 	ak4458->mute_gpiod = devm_gpiod_get_optional(ak4458->dev, "mute",  in ak4458_i2c_probe()
759 	if (IS_ERR(ak4458->mute_gpiod))  in ak4458_i2c_probe()
760 		return PTR_ERR(ak4458->mute_gpiod);  in ak4458_i2c_probe()
763 	of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path);  in ak4458_i2c_probe()
765 	for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++)  in ak4458_i2c_probe()
766 		ak4458->supplies[i].supply = ak4458_supply_names[i];  in ak4458_i2c_probe()
768 	ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies),  in ak4458_i2c_probe()
769 				      ak4458->supplies);  in ak4458_i2c_probe()
771 		dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret);  in ak4458_i2c_probe()
775 	ret = devm_snd_soc_register_component(ak4458->dev,  in ak4458_i2c_probe()
776 					      ak4458->drvdata->comp_drv,  in ak4458_i2c_probe()
777 					      ak4458->drvdata->dai_drv, 1);  in ak4458_i2c_probe()
779 		dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret);  in ak4458_i2c_probe()
784 	regcache_cache_only(ak4458->regmap, true);  in ak4458_i2c_probe()
785 	ak4458_reset(ak4458, false);  in ak4458_i2c_probe()
792 	struct ak4458_priv *ak4458 = i2c_get_clientdata(i2c);  in ak4458_i2c_remove()  local
794 	ak4458_reset(ak4458, true);  in ak4458_i2c_remove()
799 	{ .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata},
807 		.name = "ak4458",
819 MODULE_DESCRIPTION("ASoC AK4458 DAC driver");