1 // SPDX-License-Identifier: GPL-2.0
3 // ak4642.c  --  AK4642/AK4643 ALSA Soc Audio driver
23 #include <linux/clk-provider.h>
85 #define MS		(1 << 3) /* master/slave select */  macro
102 #define LOPS		(1 << 6) /* Stero Line-out Power Save Mode */
153  * min : 0xFE : -115.0 dB
156 static const DECLARE_TLV_DB_SCALE(out_tlv, -11550, 50, 1);
177 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);  in ak4642_lout_event()
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()
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()
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()
398 		data |= MS;  in ak4642_dai_set_fmt()
404 		return -EINVAL;  in ak4642_dai_set_fmt()
406 	snd_soc_component_update_bits(component, PW_MGMT2, MS | MCKO | PMPLL, data);  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()  local
475 	if (!rate)  in ak4642_dai_hw_params()
476 		rate = params_rate(params) * 256;  in ak4642_dai_hw_params()
478 	return ak4642_set_mcko(component, rate);  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()  local
609 	const char *clk_name = np->name;  in ak4642_of_parse_mcko()
611 	u32 rate;  in ak4642_of_parse_mcko()  local
613 	if (of_property_read_u32(np, "clock-frequency", &rate))  in ak4642_of_parse_mcko()
616 	if (of_property_read_bool(np, "clocks"))  in ak4642_of_parse_mcko()
617 		parent_clk_name = of_clk_get_parent_name(np, 0);  in ak4642_of_parse_mcko()
619 	of_property_read_string(np, "clock-output-names", &clk_name);  in ak4642_of_parse_mcko()
621 	clk = clk_register_fixed_rate(dev, clk_name, parent_clk_name, 0, rate);  in ak4642_of_parse_mcko()
623 		of_clk_add_provider(np, of_clk_src_simple_get, clk);  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",