3  * cs42l51.c
5  * ASoC Driver for Cirrus Logic CS42L51 codecs
29 #include "cs42l51.h"
261 	struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(comp);  in mclk_event()  local
265 		return clk_prepare_enable(cs42l51->mclk_handle);  in mclk_event()
269 		clk_disable_unprepare(cs42l51->mclk_handle);  in mclk_event()
314 	struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(component);  in cs42l51_set_dai_fmt()  local
320 		cs42l51->audio_mode = format & SND_SOC_DAIFMT_FORMAT_MASK;  in cs42l51_set_dai_fmt()
329 		cs42l51->func = MODE_MASTER;  in cs42l51_set_dai_fmt()
332 		cs42l51->func = MODE_SLAVE_AUTO;  in cs42l51_set_dai_fmt()
390 	struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(component);  in cs42l51_set_dai_sysclk()  local
392 	cs42l51->mclk = freq;  in cs42l51_set_dai_sysclk()
401 	struct cs42l51_private *cs42l51 = snd_soc_component_get_drvdata(component);  in cs42l51_hw_params()  local
410 	switch (cs42l51->func) {  in cs42l51_hw_params()
427 	ratio = cs42l51->mclk / rate;    /* MCLK/LRCK ratio */  in cs42l51_hw_params()
447 	switch (cs42l51->func) {  in cs42l51_hw_params()
469 	switch (cs42l51->audio_mode) {  in cs42l51_hw_params()
548 	.name = "cs42l51-hifi",
570 	struct cs42l51_private *cs42l51;  in cs42l51_component_probe()  local
572 	cs42l51 = snd_soc_component_get_drvdata(component);  in cs42l51_component_probe()
575 	if (cs42l51->mclk_handle)  in cs42l51_component_probe()
716 	struct cs42l51_private *cs42l51;  in cs42l51_probe()  local
723 	cs42l51 = devm_kzalloc(dev, sizeof(struct cs42l51_private),  in cs42l51_probe()
725 	if (!cs42l51)  in cs42l51_probe()
728 	dev_set_drvdata(dev, cs42l51);  in cs42l51_probe()
729 	cs42l51->regmap = regmap;  in cs42l51_probe()
731 	cs42l51->mclk_handle = devm_clk_get(dev, "MCLK");  in cs42l51_probe()
732 	if (IS_ERR(cs42l51->mclk_handle)) {  in cs42l51_probe()
733 		if (PTR_ERR(cs42l51->mclk_handle) != -ENOENT)  in cs42l51_probe()
734 			return PTR_ERR(cs42l51->mclk_handle);  in cs42l51_probe()
735 		cs42l51->mclk_handle = NULL;  in cs42l51_probe()
738 	for (i = 0; i < ARRAY_SIZE(cs42l51->supplies); i++)  in cs42l51_probe()
739 		cs42l51->supplies[i].supply = cs42l51_supply_names[i];  in cs42l51_probe()
741 	ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(cs42l51->supplies),  in cs42l51_probe()
742 				      cs42l51->supplies);  in cs42l51_probe()
748 	ret = regulator_bulk_enable(ARRAY_SIZE(cs42l51->supplies),  in cs42l51_probe()
749 				    cs42l51->supplies);  in cs42l51_probe()
755 	cs42l51->reset_gpio = devm_gpiod_get_optional(dev, "reset",  in cs42l51_probe()
757 	if (IS_ERR(cs42l51->reset_gpio))  in cs42l51_probe()
758 		return PTR_ERR(cs42l51->reset_gpio);  in cs42l51_probe()
760 	if (cs42l51->reset_gpio) {  in cs42l51_probe()
762 		gpiod_set_value_cansleep(cs42l51->reset_gpio, 0);  in cs42l51_probe()
766 	/* Verify that we have a CS42L51 */  in cs42l51_probe()
779 	dev_info(dev, "Cirrus Logic CS42L51, Revision: %02X\n",  in cs42l51_probe()
790 	regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies),  in cs42l51_probe()
791 			       cs42l51->supplies);  in cs42l51_probe()
798 	struct cs42l51_private *cs42l51 = dev_get_drvdata(dev);  in cs42l51_remove()  local
800 	gpiod_set_value_cansleep(cs42l51->reset_gpio, 1);  in cs42l51_remove()
802 	return regulator_bulk_disable(ARRAY_SIZE(cs42l51->supplies),  in cs42l51_remove()
803 				      cs42l51->supplies);  in cs42l51_remove()
809 	struct cs42l51_private *cs42l51 = dev_get_drvdata(dev);  in cs42l51_suspend()  local
811 	regcache_cache_only(cs42l51->regmap, true);  in cs42l51_suspend()
812 	regcache_mark_dirty(cs42l51->regmap);  in cs42l51_suspend()
820 	struct cs42l51_private *cs42l51 = dev_get_drvdata(dev);  in cs42l51_resume()  local
822 	regcache_cache_only(cs42l51->regmap, false);  in cs42l51_resume()
824 	return regcache_sync(cs42l51->regmap);  in cs42l51_resume()
829 	{ .compatible = "cirrus,cs42l51", },
836 MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver");