1 // SPDX-License-Identifier: GPL-2.0-only
15 #include <sound/soc-dapm.h>
20 /* sysconf 5041: Audio-Gue-Control */
22 /* sysconf 5042: Audio-DAC-Control */
34 /* SPDIF definitions */
56 	int mclk;  member
62 	int mclk;  member
80 	struct sti_spdif_audio spdif;  member
91 	status = regmap_read(drvdata->dac.regmap, reg, &val);  in sti_sas_read_reg()
104 	status = regmap_write(drvdata->dac.regmap, reg, value);  in sti_sas_write_reg()
114 	 * DAC and SPDIF are activated by default  in sti_sas_init_sas_registers()
118 	/* Initialise bi-phase formatter to disabled */  in sti_sas_init_sas_registers()
123 		/* Initialise bi-phase formatter idle value to 0 */  in sti_sas_init_sas_registers()
127 		dev_err(component->dev, "Failed to update SPDIF registers\n");  in sti_sas_init_sas_registers()
147 		dev_err(component->dev, "Failed to update DAC registers\n");  in sti_sas_init_sas_registers()
161 		dev_err(dai->component->dev,  in sti_sas_dac_set_fmt()
164 		return -EINVAL;  in sti_sas_dac_set_fmt()
186 	struct snd_soc_component *component = dai->component;  in stih407_sas_dac_mute()
200  * SPDIF
206 		dev_err(dai->component->dev,  in sti_sas_spdif_set_fmt()
209 		return -EINVAL;  in sti_sas_spdif_set_fmt()
224 	struct snd_soc_component *component = dai->component;  in sti_sas_spdif_trigger()
240 		return -EINVAL;  in sti_sas_spdif_trigger()
258  * get MCLK input frequency to check that MCLK-FS ratio is coherent
263 	struct snd_soc_component *component = dai->component;  in sti_sas_set_sysclk()
264 	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);  in sti_sas_set_sysclk()
270 		return -EINVAL;  in sti_sas_set_sysclk()
272 	switch (dai->id) {  in sti_sas_set_sysclk()
274 		drvdata->spdif.mclk = freq;  in sti_sas_set_sysclk()
278 		drvdata->dac.mclk = freq;  in sti_sas_set_sysclk()
288 	struct snd_soc_component *component = dai->component;  in sti_sas_prepare()
289 	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);  in sti_sas_prepare()
290 	struct snd_pcm_runtime *runtime = substream->runtime;  in sti_sas_prepare()
292 	switch (dai->id) {  in sti_sas_prepare()
294 		if ((drvdata->spdif.mclk / runtime->rate) != 128) {  in sti_sas_prepare()
295 			dev_err(component->dev, "unexpected mclk-fs ratio\n");  in sti_sas_prepare()
296 			return -EINVAL;  in sti_sas_prepare()
300 		if ((drvdata->dac.mclk / runtime->rate) != 256) {  in sti_sas_prepare()
301 			dev_err(component->dev, "unexpected mclk-fs ratio\n");  in sti_sas_prepare()
302 			return -EINVAL;  in sti_sas_prepare()
341 		.name = "sas-dai-spdif-out",
364 		.name = "sas-dai-dac",
380 	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);  in sti_sas_resume()
390 	struct sti_sas_data *drvdata = dev_get_drvdata(component->dev);  in sti_sas_component_probe()
409 		.compatible = "st,stih407-sas-codec",
418 	struct device_node *pnode = pdev->dev.of_node;  in sti_sas_driver_probe()
423 	drvdata = devm_kzalloc(&pdev->dev, sizeof(struct sti_sas_data),  in sti_sas_driver_probe()
426 		return -ENOMEM;  in sti_sas_driver_probe()
430 	if (!of_id->data) {  in sti_sas_driver_probe()
431 		dev_err(&pdev->dev, "data associated to device is missing\n");  in sti_sas_driver_probe()
432 		return -EINVAL;  in sti_sas_driver_probe()
435 	drvdata->dev_data = (struct sti_sas_dev_data *)of_id->data;  in sti_sas_driver_probe()
438 	drvdata->dev = &pdev->dev;  in sti_sas_driver_probe()
440 	/* Request the DAC & SPDIF registers memory region */  in sti_sas_driver_probe()
441 	drvdata->dac.virt_regmap = devm_regmap_init(&pdev->dev, NULL, drvdata,  in sti_sas_driver_probe()
442 						    drvdata->dev_data->regmap);  in sti_sas_driver_probe()
443 	if (IS_ERR(drvdata->dac.virt_regmap)) {  in sti_sas_driver_probe()
444 		dev_err(&pdev->dev, "audio registers not enabled\n");  in sti_sas_driver_probe()
445 		return PTR_ERR(drvdata->dac.virt_regmap);  in sti_sas_driver_probe()
449 	drvdata->dac.regmap =  in sti_sas_driver_probe()
451 	if (IS_ERR(drvdata->dac.regmap)) {  in sti_sas_driver_probe()
452 		dev_err(&pdev->dev, "syscon registers not available\n");  in sti_sas_driver_probe()
453 		return PTR_ERR(drvdata->dac.regmap);  in sti_sas_driver_probe()
455 	drvdata->spdif.regmap = drvdata->dac.regmap;  in sti_sas_driver_probe()
457 	sti_sas_dai[STI_SAS_DAI_ANALOG_OUT].ops = drvdata->dev_data->dac_ops;  in sti_sas_driver_probe()
460 	sti_sas_driver.dapm_widgets = drvdata->dev_data->dapm_widgets;  in sti_sas_driver_probe()
461 	sti_sas_driver.num_dapm_widgets = drvdata->dev_data->num_dapm_widgets;  in sti_sas_driver_probe()
463 	sti_sas_driver.dapm_routes = drvdata->dev_data->dapm_routes;  in sti_sas_driver_probe()
464 	sti_sas_driver.num_dapm_routes = drvdata->dev_data->num_dapm_routes;  in sti_sas_driver_probe()
467 	dev_set_drvdata(&pdev->dev, drvdata);  in sti_sas_driver_probe()
469 	return devm_snd_soc_register_component(&pdev->dev, &sti_sas_driver,  in sti_sas_driver_probe()
476 		.name = "sti-sas-codec",