1 // SPDX-License-Identifier: GPL-2.0-only
3  * cs4265.c -- CS4265 ALSA SoC audio driver
25 #include <sound/soc-dapm.h>
76 static DECLARE_TLV_DB_SCALE(pga_tlv, -1200, 50, 0);
78 static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 0);
136 	SOC_SINGLE("De-emp 44.1kHz Switch", CS4265_DAC_CTL, 1,
155 	SOC_ENUM("SPDIF Mono/Stereo", spdif_mono_stereo_enum),
176 	SND_SOC_DAPM_PGA("Pre-amp MIC", CS4265_PWRCTL, 3,
184 	SND_SOC_DAPM_MIXER("SPDIF Transmitter", SND_SOC_NOPM, 0, 0, NULL, 0),
188 	SND_SOC_DAPM_SWITCH("SPDIF", CS4265_SPDIF_CTL2, 5, 1,
214 	{"SPDIF", "Switch", "Input Mux"},
217 	{"SPDIFOUT", NULL, "SPDIF"},
219 	{"Pre-amp MIC", NULL, "MICL"},
220 	{"Pre-amp MIC", NULL, "MICR"},
221 	{"ADC Mux", "MIC", "Pre-amp MIC"},
235 	u32 mclk;  member
306 static int cs4265_get_clk_index(int mclk, int rate)  in cs4265_get_clk_index()  argument
312 				clk_map_table[i].mclk == mclk)  in cs4265_get_clk_index()
315 	return -EINVAL;  in cs4265_get_clk_index()
321 	struct snd_soc_component *component = codec_dai->component;  in cs4265_set_sysclk()
326 		dev_err(component->dev, "Invalid clk_id %d\n", clk_id);  in cs4265_set_sysclk()
327 		return -EINVAL;  in cs4265_set_sysclk()
330 		if (clk_map_table[i].mclk == freq) {  in cs4265_set_sysclk()
331 			cs4265->sysclk = freq;  in cs4265_set_sysclk()
335 	cs4265->sysclk = 0;  in cs4265_set_sysclk()
336 	dev_err(component->dev, "Invalid freq parameter %d\n", freq);  in cs4265_set_sysclk()
337 	return -EINVAL;  in cs4265_set_sysclk()
342 	struct snd_soc_component *component = codec_dai->component;  in cs4265_set_fmt()
358 		return -EINVAL;  in cs4265_set_fmt()
373 		return -EINVAL;  in cs4265_set_fmt()
376 	cs4265->format = iface;  in cs4265_set_fmt()
382 	struct snd_soc_component *component = dai->component;  in cs4265_mute()
406 	struct snd_soc_component *component = dai->component;  in cs4265_pcm_hw_params()
410 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE &&  in cs4265_pcm_hw_params()
411 		((cs4265->format & SND_SOC_DAIFMT_FORMAT_MASK)  in cs4265_pcm_hw_params()
413 		return -EINVAL;  in cs4265_pcm_hw_params()
415 	index = cs4265_get_clk_index(cs4265->sysclk, params_rate(params));  in cs4265_pcm_hw_params()
424 		dev_err(component->dev, "can't get correct mclk\n");  in cs4265_pcm_hw_params()
425 		return -EINVAL;  in cs4265_pcm_hw_params()
428 	switch (cs4265->format & SND_SOC_DAIFMT_FORMAT_MASK) {  in cs4265_pcm_hw_params()
460 		return -EINVAL;  in cs4265_pcm_hw_params()
508 		.name = "cs4265-dai1",
526 		.name = "cs4265-dai2",
577 	cs4265 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs4265_private),  in cs4265_i2c_probe()
580 		return -ENOMEM;  in cs4265_i2c_probe()
582 	cs4265->regmap = devm_regmap_init_i2c(i2c_client, &cs4265_regmap);  in cs4265_i2c_probe()
583 	if (IS_ERR(cs4265->regmap)) {  in cs4265_i2c_probe()
584 		ret = PTR_ERR(cs4265->regmap);  in cs4265_i2c_probe()
585 		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);  in cs4265_i2c_probe()
589 	cs4265->reset_gpio = devm_gpiod_get_optional(&i2c_client->dev,  in cs4265_i2c_probe()
591 	if (IS_ERR(cs4265->reset_gpio))  in cs4265_i2c_probe()
592 		return PTR_ERR(cs4265->reset_gpio);  in cs4265_i2c_probe()
594 	if (cs4265->reset_gpio) {  in cs4265_i2c_probe()
596 		gpiod_set_value_cansleep(cs4265->reset_gpio, 1);  in cs4265_i2c_probe()
601 	ret = regmap_read(cs4265->regmap, CS4265_CHIP_ID, &reg);  in cs4265_i2c_probe()
603 		dev_err(&i2c_client->dev, "Failed to read chip ID: %d\n", ret);  in cs4265_i2c_probe()
609 		ret = -ENODEV;  in cs4265_i2c_probe()
610 		dev_err(&i2c_client->dev,  in cs4265_i2c_probe()
615 	dev_info(&i2c_client->dev,  in cs4265_i2c_probe()
619 	regmap_write(cs4265->regmap, CS4265_PWRCTL, 0x0F);  in cs4265_i2c_probe()
621 	return devm_snd_soc_register_component(&i2c_client->dev,  in cs4265_i2c_probe()
630 	if (cs4265->reset_gpio)  in cs4265_i2c_remove()
631 		gpiod_set_value_cansleep(cs4265->reset_gpio, 0);  in cs4265_i2c_remove()