1 // SPDX-License-Identifier: GPL-2.0
3 // ak4642.c  --  AK4642/AK4643 ALSA Soc Audio driver
23 #include <linux/clk-provider.h>
102 #define LOPS		(1 << 6) /* Stero Line-out Power Save Mode */
105 #define ZTM(param)	((param & 0x3) << 4) /* ALC Zero Crossing TimeOut */
109 #define ALC		(1 << 5) /* ALC Enable */  macro
110 #define LMTH0		(1 << 0) /* ALC Limiter / Recovery Level */
153  * min : 0xFE : -115.0 dB
156 static const DECLARE_TLV_DB_SCALE(out_tlv, -11550, 50, 1);
162 	SOC_SINGLE("ALC Capture Switch", ALC_CTL1, 5, 1, 0),
163 	SOC_SINGLE("ALC Capture ZC Switch", ALC_CTL1, 4, 1, 1),
177 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in ak4642_lout_event()
205 	SND_SOC_DAPM_SWITCH("Headphone Enable", SND_SOC_NOPM, 0, 0,
228 	{"HPL Out", NULL, "Headphone Enable"},
229 	{"HPR Out", NULL, "Headphone Enable"},
231 	{"Headphone Enable", "Switch", "DACH"},
280 	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in ak4642_dai_startup()
281 	struct snd_soc_component *component = dai->component;  in ak4642_dai_startup()
304 		 * ALC setting:Refer to Table 35  in ak4642_dai_startup()
305 		 * ALC bit=“1”  in ak4642_dai_startup()
312 		snd_soc_component_write(component, ALC_CTL1, ALC | LMTH0);  in ak4642_dai_startup()
323 	int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;  in ak4642_dai_shutdown()
324 	struct snd_soc_component *component = dai->component;  in ak4642_dai_shutdown()
331 		snd_soc_component_update_bits(component, ALC_CTL1, ALC, 0);  in ak4642_dai_shutdown()
338 	struct snd_soc_component *component = codec_dai->component;  in ak4642_dai_set_sysclk()
375 		return -EINVAL;  in ak4642_dai_set_sysclk()
378 	if (extended_freq && !priv->drvdata->extended_frequencies)  in ak4642_dai_set_sysclk()
379 		return -EINVAL;  in ak4642_dai_set_sysclk()
388 	struct snd_soc_component *component = dai->component;  in ak4642_dai_set_fmt()
404 		return -EINVAL;  in ak4642_dai_set_fmt()
422 		return -EINVAL;  in ak4642_dai_set_fmt()
471 	struct snd_soc_component *component = dai->component;  in ak4642_dai_hw_params()
473 	u32 rate = clk_get_rate(priv->mcko);  in ak4642_dai_hw_params()
505 	.name = "ak4642-hifi",
524 	struct regmap *regmap = dev_get_regmap(component->dev, NULL);  in ak4642_suspend()
533 	struct regmap *regmap = dev_get_regmap(component->dev, NULL);  in ak4642_resume()
543 	if (priv->mcko)  in ak4642_probe()
544 		ak4642_set_mcko(component, clk_get_rate(priv->mcko));  in ak4642_probe()
607 	struct device_node *np = dev->of_node;  in ak4642_of_parse_mcko()
609 	const char *clk_name = np->name;  in ak4642_of_parse_mcko()
613 	if (of_property_read_u32(np, "clock-frequency", &rate))  in ak4642_of_parse_mcko()
619 	of_property_read_string(np, "clock-output-names", &clk_name);  in ak4642_of_parse_mcko()
633 	struct device *dev = &i2c->dev;  in ak4642_i2c_probe()
647 		return dev_err_probe(dev, -EINVAL, "Unknown device type\n");  in ak4642_i2c_probe()
651 		return -ENOMEM;  in ak4642_i2c_probe()
653 	priv->drvdata = drvdata;  in ak4642_i2c_probe()
654 	priv->mcko = mcko;  in ak4642_i2c_probe()
658 	regmap = devm_regmap_init_i2c(i2c, drvdata->regmap_config);  in ak4642_i2c_probe()
667 	{ .compatible = "asahi-kasei,ak4642",	.data = &ak4642_drvdata},
668 	{ .compatible = "asahi-kasei,ak4643",	.data = &ak4643_drvdata},
669 	{ .compatible = "asahi-kasei,ak4648",	.data = &ak4648_drvdata},
684 		.name = "ak4642-codec",