soc/codecs/tfa989x.c

1 // SPDX-License-Identifier: GPL-2.0-only
6  * Copyright (C) 2014-2020 NXP Semiconductors, All Rights Reserved.
14 #include <linux/regulator/consumer.h>
61 	struct regulator *vddd_supply;
111 	gpiod_set_value_cansleep(tfa989x->rcv_gpiod, ucontrol->value.enumerated.item[0]);  in tfa989x_put_mode()
126 	if (tfa989x->rev->rev == TFA9897_REVISION)  in tfa989x_probe()
155 	return -EINVAL;  in tfa989x_find_sample_rate()
162 	struct snd_soc_component *component = dai->component;  in tfa989x_hw_params()
179 	.name = "tfa989x-hifi",
196 	/* temporarily allow access to hidden registers */  in tfa9890_init()
270  * no documentation for it - the public "short datasheets" do not provide
275  * rely on obscure firmware blobs for configuration (so-called "containers").
290 	/* Clear CHSA to bypass DSP and take input from I2S 1 left channel */  in tfa989x_dsp_bypass()
314 	regulator_disable(tfa989x->vddd_supply);  in tfa989x_regulator_disable()
319 	struct device *dev = &i2c->dev;  in tfa989x_i2c_probe()
329 		return -ENODEV;  in tfa989x_i2c_probe()
334 		return -ENOMEM;  in tfa989x_i2c_probe()
336 	tfa989x->rev = rev;  in tfa989x_i2c_probe()
339 	tfa989x->vddd_supply = devm_regulator_get(dev, "vddd");  in tfa989x_i2c_probe()
340 	if (IS_ERR(tfa989x->vddd_supply))  in tfa989x_i2c_probe()
341 		return dev_err_probe(dev, PTR_ERR(tfa989x->vddd_supply),  in tfa989x_i2c_probe()
342 				     "Failed to get vddd regulator\n");  in tfa989x_i2c_probe()
344 	if (tfa989x->rev->rev == TFA9897_REVISION) {  in tfa989x_i2c_probe()
345 		tfa989x->rcv_gpiod = devm_gpiod_get_optional(dev, "rcv", GPIOD_OUT_LOW);  in tfa989x_i2c_probe()
346 		if (IS_ERR(tfa989x->rcv_gpiod))  in tfa989x_i2c_probe()
347 			return PTR_ERR(tfa989x->rcv_gpiod);  in tfa989x_i2c_probe()
354 	ret = regulator_enable(tfa989x->vddd_supply);  in tfa989x_i2c_probe()
356 		dev_err(dev, "Failed to enable vddd regulator: %d\n", ret);  in tfa989x_i2c_probe()
364 	/* Bypass regcache for reset and init sequence */  in tfa989x_i2c_probe()
377 	if (val != rev->rev) {  in tfa989x_i2c_probe()
379 			rev->rev, val);  in tfa989x_i2c_probe()
380 		return -ENODEV;  in tfa989x_i2c_probe()
389 	ret = rev->init(regmap);  in tfa989x_i2c_probe()
397 		dev_err(dev, "failed to enable DSP bypass: %d\n", ret);  in tfa989x_i2c_probe()