254 	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);  in ak4375_hw_params()  local
257 	ak4375->rate = params_rate(params);  in ak4375_hw_params()
259 	if (ak4375->rate <= 96000)  in ak4375_hw_params()
260 		ak4375->pld = 0;  in ak4375_hw_params()
262 		ak4375->pld = 1;  in ak4375_hw_params()
264 	freq_in = 32 * ak4375->rate / (ak4375->pld + 1);  in ak4375_hw_params()
266 	if ((ak4375->rate % 8000) == 0)  in ak4375_hw_params()
278 	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);  in ak4375_dai_set_pll()  local
286 	switch (ak4375->rate) {  in ak4375_dai_set_pll()
324 	if (ak4375->rate <= 24000) {  in ak4375_dai_set_pll()
326 		mclk = 512 * ak4375->rate;  in ak4375_dai_set_pll()
329 	} else if (ak4375->rate <= 96000) {  in ak4375_dai_set_pll()
331 		mclk = 256 * ak4375->rate;  in ak4375_dai_set_pll()
336 		mclk = 128 * ak4375->rate;  in ak4375_dai_set_pll()
346 				(ak4375->pld & 0xff00) >> 8);  in ak4375_dai_set_pll()
348 				ak4375->pld & 0x00ff);  in ak4375_dai_set_pll()
361 	dev_dbg(ak4375->dev, "rate=%d mclk=%d f_in=%d f_out=%d PLD=%d PLM=%d MDIV=%d DIV=%d\n",  in ak4375_dai_set_pll()
362 		ak4375->rate, mclk, freq_in, freq_out, ak4375->pld, plm, mdiv, div);  in ak4375_dai_set_pll()
370 	struct ak4375_priv *ak4375 = snd_soc_component_get_drvdata(component);  in ak4375_mute()  local
373 	dev_dbg(ak4375->dev, "mute=%d val=%d\n", mute, val);  in ak4375_mute()
376 		ak4375->mute_save = val & DACMUTE_MASK;  in ak4375_mute()
379 		val |= ak4375->mute_save;  in ak4375_mute()
402 	.name = "ak4375-hifi",
415 static void ak4375_power_off(struct ak4375_priv *ak4375)  in ak4375_power_off()  argument
417 	gpiod_set_value_cansleep(ak4375->pdn_gpiod, 0);  in ak4375_power_off()
420 	regulator_bulk_disable(ARRAY_SIZE(ak4375->supplies), ak4375->supplies);  in ak4375_power_off()
423 static int ak4375_power_on(struct ak4375_priv *ak4375)  in ak4375_power_on()  argument
427 	ret = regulator_bulk_enable(ARRAY_SIZE(ak4375->supplies), ak4375->supplies);  in ak4375_power_on()
429 		dev_err(ak4375->dev, "Failed to enable regulators: %d\n", ret);  in ak4375_power_on()
435 	gpiod_set_value_cansleep(ak4375->pdn_gpiod, 1);  in ak4375_power_on()
443 	struct ak4375_priv *ak4375 = dev_get_drvdata(dev);  in ak4375_runtime_suspend()  local
445 	regcache_cache_only(ak4375->regmap, true);  in ak4375_runtime_suspend()
446 	ak4375_power_off(ak4375);  in ak4375_runtime_suspend()
453 	struct ak4375_priv *ak4375 = dev_get_drvdata(dev);  in ak4375_runtime_resume()  local
456 	ret = ak4375_power_on(ak4375);  in ak4375_runtime_resume()
460 	regcache_cache_only(ak4375->regmap, false);  in ak4375_runtime_resume()
461 	regcache_mark_dirty(ak4375->regmap);  in ak4375_runtime_resume()
463 	return regcache_sync(ak4375->regmap);  in ak4375_runtime_resume()
500 	struct ak4375_priv *ak4375;  in ak4375_i2c_probe()  local
505 	ak4375 = devm_kzalloc(&i2c->dev, sizeof(*ak4375), GFP_KERNEL);  in ak4375_i2c_probe()
506 	if (!ak4375)  in ak4375_i2c_probe()
509 	ak4375->regmap = devm_regmap_init_i2c(i2c, &ak4375_regmap);  in ak4375_i2c_probe()
510 	if (IS_ERR(ak4375->regmap))  in ak4375_i2c_probe()
511 		return PTR_ERR(ak4375->regmap);  in ak4375_i2c_probe()
513 	i2c_set_clientdata(i2c, ak4375);  in ak4375_i2c_probe()
514 	ak4375->dev = &i2c->dev;  in ak4375_i2c_probe()
519 		ak4375->supplies[i].supply = supply_names[i];  in ak4375_i2c_probe()
521 	ret = devm_regulator_bulk_get(ak4375->dev, ARRAY_SIZE(ak4375->supplies), ak4375->supplies);  in ak4375_i2c_probe()
523 		dev_err(ak4375->dev, "Failed to get regulators: %d\n", ret);  in ak4375_i2c_probe()
527 	ak4375->pdn_gpiod = devm_gpiod_get_optional(ak4375->dev, "pdn", GPIOD_OUT_LOW);  in ak4375_i2c_probe()
528 	if (IS_ERR(ak4375->pdn_gpiod))  in ak4375_i2c_probe()
529 		return dev_err_probe(ak4375->dev, PTR_ERR(ak4375->pdn_gpiod),  in ak4375_i2c_probe()
532 	ret = ak4375_power_on(ak4375);  in ak4375_i2c_probe()
537 	regcache_cache_bypass(ak4375->regmap, true);  in ak4375_i2c_probe()
539 	ret = regmap_read(ak4375->regmap, AK4375_15_AUDIO_IF_FORMAT, &deviceid);  in ak4375_i2c_probe()
541 		dev_err(ak4375->dev, "unable to read DEVICEID!\n");  in ak4375_i2c_probe()
545 	regcache_cache_bypass(ak4375->regmap, false);  in ak4375_i2c_probe()
551 		dev_err(ak4375->dev, "found untested AK4331\n");  in ak4375_i2c_probe()
554 		dev_dbg(ak4375->dev, "found AK4375\n");  in ak4375_i2c_probe()
557 		dev_dbg(ak4375->dev, "found AK4375A\n");  in ak4375_i2c_probe()
560 		dev_err(ak4375->dev, "found unsupported AK4376/A!\n");  in ak4375_i2c_probe()
563 		dev_err(ak4375->dev, "found unsupported AK4377!\n");  in ak4375_i2c_probe()
566 		dev_err(ak4375->dev, "unrecognized DEVICEID!\n");  in ak4375_i2c_probe()
570 	pm_runtime_set_active(ak4375->dev);  in ak4375_i2c_probe()
571 	pm_runtime_enable(ak4375->dev);  in ak4375_i2c_probe()
573 	ret = devm_snd_soc_register_component(ak4375->dev, drvdata->comp_drv,  in ak4375_i2c_probe()
576 		dev_err(ak4375->dev, "Failed to register CODEC: %d\n", ret);  in ak4375_i2c_probe()
589 	{ .compatible = "asahi-kasei,ak4375", .data = &ak4375_drvdata },
596 		.name = "ak4375",
606 MODULE_DESCRIPTION("ASoC AK4375 DAC driver");