1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2010-2011,2013-2015 The Linux Foundation. All rights reserved.
4  * max98357a.c -- MAX98357A ALSA SoC Codec driver
8 #include <linux/delay.h>
19 #include <sound/soc-dai.h>
20 #include <sound/soc-dapm.h>
23 	struct gpio_desc *sdmode;  member
31 	struct snd_soc_component *component = dai->component;  in max98357a_daiops_trigger()
35 	if (!max98357a->sdmode)  in max98357a_daiops_trigger()
42 		mdelay(max98357a->sdmode_delay);  in max98357a_daiops_trigger()
43 		if (max98357a->sdmode_switch) {  in max98357a_daiops_trigger()
44 			gpiod_set_value(max98357a->sdmode, 1);  in max98357a_daiops_trigger()
45 			dev_dbg(component->dev, "set sdmode to 1");  in max98357a_daiops_trigger()
51 		gpiod_set_value(max98357a->sdmode, 0);  in max98357a_daiops_trigger()
52 		dev_dbg(component->dev, "set sdmode to 0");  in max98357a_daiops_trigger()
63 		snd_soc_dapm_to_component(w->dapm);  in max98357a_sdmode_event()
68 		max98357a->sdmode_switch = 1;  in max98357a_sdmode_event()
70 		max98357a->sdmode_switch = 0;  in max98357a_sdmode_event()
128 	max98357a = devm_kzalloc(&pdev->dev, sizeof(*max98357a), GFP_KERNEL);  in max98357a_platform_probe()
130 		return -ENOMEM;  in max98357a_platform_probe()
132 	max98357a->sdmode = devm_gpiod_get_optional(&pdev->dev,  in max98357a_platform_probe()
133 				"sdmode", GPIOD_OUT_LOW);  in max98357a_platform_probe()
134 	if (IS_ERR(max98357a->sdmode))  in max98357a_platform_probe()
135 		return PTR_ERR(max98357a->sdmode);  in max98357a_platform_probe()
137 	ret = device_property_read_u32(&pdev->dev, "sdmode-delay",  in max98357a_platform_probe()
138 					&max98357a->sdmode_delay);  in max98357a_platform_probe()
140 		max98357a->sdmode_delay = 0;  in max98357a_platform_probe()
141 		dev_dbg(&pdev->dev,  in max98357a_platform_probe()
142 			"no optional property 'sdmode-delay' found, "  in max98357a_platform_probe()
143 			"default: no delay\n");  in max98357a_platform_probe()
146 	dev_set_drvdata(&pdev->dev, max98357a);  in max98357a_platform_probe()
148 	return devm_snd_soc_register_component(&pdev->dev,  in max98357a_platform_probe()