1 // SPDX-License-Identifier: GPL-2.0-only
13 #include <linux/reset.h>
23 #include <sound/soc-component.h>
65 	struct reset_control *reset;  member
72 	0, 1, TLV_DB_SCALE_ITEM(-15000, 0, 0),
73 	2, 6, TLV_DB_SCALE_ITEM(-15000, 1000, 0),
74 	7, 0xff, TLV_DB_SCALE_ITEM(-10000, 50, 0),
80 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;  in ntp8835_mute_info()
81 	uinfo->access =  in ntp8835_mute_info()
83 	uinfo->count = 1;  in ntp8835_mute_info()
85 	uinfo->value.integer.min = 0;  in ntp8835_mute_info()
86 	uinfo->value.integer.max = 1;  in ntp8835_mute_info()
87 	uinfo->value.integer.step = 1;  in ntp8835_mute_info()
100 	ucontrol->value.integer.value[0] = val ? 0 : 1;  in ntp8835_mute_get()
110 	val = ucontrol->value.integer.value[0] ? 0 : 7;  in ntp8835_mute_put()
134 	 * /RESET signal low during power up for at least 0.1us. The sequence is,  in ntp8835_reset_gpio()
136 	 * Deassert for T2 >= 1ms...  in ntp8835_reset_gpio()
138 	reset_control_deassert(ntp8835->reset);  in ntp8835_reset_gpio()
141 	/* ...Assert for T3 >= 0.1us... */  in ntp8835_reset_gpio()
142 	reset_control_assert(ntp8835->reset);  in ntp8835_reset_gpio()
145 	/* ...Deassert, and wait for T4 >= 0.5ms before sound on sequence. */  in ntp8835_reset_gpio()
146 	reset_control_deassert(ntp8835->reset);  in ntp8835_reset_gpio()
173 	ret = ntpfw_load(ntp8835->i2c, NTP8835_FW_NAME, NTP8835_FW_MAGIC);  in ntp8835_load_firmware()
174 	if (ret == -ENOENT) {  in ntp8835_load_firmware()
175 		dev_warn_once(&ntp8835->i2c->dev,  in ntp8835_load_firmware()
187 	regcache_cache_only(component->regmap, true);  in ntp8835_snd_suspend()
189 	regmap_multi_reg_write_bypassed(component->regmap,  in ntp8835_snd_suspend()
195 	 * wait after sound off for T6 >= 0.5ms  in ntp8835_snd_suspend()
198 	reset_control_assert(ntp8835->reset);  in ntp8835_snd_suspend()
200 	regcache_mark_dirty(component->regmap);  in ntp8835_snd_suspend()
201 	clk_disable_unprepare(ntp8835->mclk);  in ntp8835_snd_suspend()
212 	ret = clk_prepare_enable(ntp8835->mclk);  in ntp8835_snd_resume()
216 	regmap_multi_reg_write_bypassed(component->regmap,  in ntp8835_snd_resume()
222 		dev_err(&ntp8835->i2c->dev, "Failed to load firmware\n");  in ntp8835_snd_resume()
226 	regcache_cache_only(component->regmap, false);  in ntp8835_snd_resume()
236 	struct device *dev = component->dev;  in ntp8835_probe()
274 		ntp8835->mclk_rate = freq;  in ntp8835_set_component_sysclk()
277 		ntp8835->mclk_rate = 0;  in ntp8835_set_component_sysclk()
278 		dev_err(component->dev, "Unsupported MCLK value: %u", freq);  in ntp8835_set_component_sysclk()
279 		return -EINVAL;  in ntp8835_set_component_sysclk()
300 	struct snd_soc_component *component = dai->component;  in ntp8835_hw_params()
308 	switch (ntp8835->mclk_rate) {  in ntp8835_hw_params()
319 		return -EINVAL;  in ntp8835_hw_params()
327 	switch (ntp8835->format) {  in ntp8835_hw_params()
361 		return -EINVAL;  in ntp8835_hw_params()
373 	struct snd_soc_component *component = dai->component;  in ntp8835_set_fmt()
380 		ntp8835->format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;  in ntp8835_set_fmt()
383 		return -EINVAL;  in ntp8835_set_fmt()
394 	.name = "ntp8835-amplifier",
418 	ntp8835 = devm_kzalloc(&i2c->dev, sizeof(*ntp8835), GFP_KERNEL);  in ntp8835_i2c_probe()
420 		return -ENOMEM;  in ntp8835_i2c_probe()
422 	ntp8835->i2c = i2c;  in ntp8835_i2c_probe()
424 	ntp8835->reset = devm_reset_control_get_shared(&i2c->dev, NULL);  in ntp8835_i2c_probe()
425 	if (IS_ERR(ntp8835->reset))  in ntp8835_i2c_probe()
426 		return dev_err_probe(&i2c->dev, PTR_ERR(ntp8835->reset),  in ntp8835_i2c_probe()
427 				     "Failed to get reset\n");  in ntp8835_i2c_probe()
429 	ret = reset_control_deassert(ntp8835->reset);  in ntp8835_i2c_probe()
431 		return dev_err_probe(&i2c->dev, ret,  in ntp8835_i2c_probe()
432 				     "Failed to deassert reset\n");  in ntp8835_i2c_probe()
434 	dev_set_drvdata(&i2c->dev, ntp8835);  in ntp8835_i2c_probe()
440 		return dev_err_probe(&i2c->dev, PTR_ERR(regmap),  in ntp8835_i2c_probe()
443 	ret = devm_snd_soc_register_component(&i2c->dev, &soc_component_ntp8835,  in ntp8835_i2c_probe()
446 		return dev_err_probe(&i2c->dev, ret,  in ntp8835_i2c_probe()
449 	ntp8835->mclk = devm_clk_get_enabled(&i2c->dev, "mclk");  in ntp8835_i2c_probe()
450 	if (IS_ERR(ntp8835->mclk))  in ntp8835_i2c_probe()
451 		return dev_err_probe(&i2c->dev, PTR_ERR(ntp8835->mclk), "failed to get mclk\n");  in ntp8835_i2c_probe()