1 // SPDX-License-Identifier: GPL-2.0-only
3  * wm8524.c  --  WM8524 ALSA SoC Audio driver
8  * Based on WM8523 ALSA SoC Audio driver written by Mark Brown
62 	struct snd_soc_component *component = dai->component;  in wm8524_startup()
63 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_startup()  local
68 	if (wm8524->sysclk)  in wm8524_startup()
69 		snd_pcm_hw_constraint_list(substream->runtime, 0,  in wm8524_startup()
71 					   &wm8524->rate_constraint);  in wm8524_startup()
73 	gpiod_set_value_cansleep(wm8524->mute, 1);  in wm8524_startup()
81 	struct snd_soc_component *component = dai->component;  in wm8524_shutdown()
82 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_shutdown()  local
84 	gpiod_set_value_cansleep(wm8524->mute, 0);  in wm8524_shutdown()
90 	struct snd_soc_component *component = codec_dai->component;  in wm8524_set_dai_sysclk()
91 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_set_dai_sysclk()  local
95 	wm8524->rate_constraint.count = 0;  in wm8524_set_dai_sysclk()
96 	wm8524->sysclk = freq;  in wm8524_set_dai_sysclk()
97 	if (!wm8524->sysclk)  in wm8524_set_dai_sysclk()
119 			dev_dbg(component->dev, "Supported sample rate: %dHz\n",  in wm8524_set_dai_sysclk()
121 			wm8524->rate_constraint_list[j++] = val;  in wm8524_set_dai_sysclk()
122 			wm8524->rate_constraint.count++;  in wm8524_set_dai_sysclk()
125 			dev_dbg(component->dev, "Skipping sample rate: %dHz\n",  in wm8524_set_dai_sysclk()
131 	if (wm8524->rate_constraint.count == 0)  in wm8524_set_dai_sysclk()
132 		return -EINVAL;  in wm8524_set_dai_sysclk()
144 		dev_err(codec_dai->dev, "Invalid DAI format\n");  in wm8524_set_fmt()
145 		return -EINVAL;  in wm8524_set_fmt()
153 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(dai->component);  in wm8524_mute_stream()  local
155 	if (wm8524->mute)  in wm8524_mute_stream()
156 		gpiod_set_value_cansleep(wm8524->mute, mute);  in wm8524_mute_stream()
165 	struct snd_soc_component *component = dai->component;  in wm8524_hw_params()
166 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_hw_params()  local
170 	if (!wm8524->sysclk)  in wm8524_hw_params()
174 	for (i = 0; i < wm8524->rate_constraint.count; i++) {  in wm8524_hw_params()
175 		if (wm8524->rate_constraint.list[i] == params_rate(params))  in wm8524_hw_params()
179 	if (i == wm8524->rate_constraint.count) {  in wm8524_hw_params()
180 		dev_err(component->dev, "LRCLK %d unsupported with MCLK %d\n",  in wm8524_hw_params()
181 			params_rate(params), wm8524->sysclk);  in wm8524_hw_params()
182 		return -EINVAL;  in wm8524_hw_params()
204 	.name = "wm8524-hifi",
217 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_probe()  local
219 	wm8524->rate_constraint.list = &wm8524->rate_constraint_list[0];  in wm8524_probe()
220 	wm8524->rate_constraint.count =  in wm8524_probe()
221 		ARRAY_SIZE(wm8524->rate_constraint_list);  in wm8524_probe()
238 	{ .compatible = "wlf,wm8524" },
245 	struct wm8524_priv *wm8524;  in wm8524_codec_probe()  local
248 	wm8524 = devm_kzalloc(&pdev->dev, sizeof(struct wm8524_priv),  in wm8524_codec_probe()
250 	if (wm8524 == NULL)  in wm8524_codec_probe()
251 		return -ENOMEM;  in wm8524_codec_probe()
253 	platform_set_drvdata(pdev, wm8524);  in wm8524_codec_probe()
255 	wm8524->mute = devm_gpiod_get(&pdev->dev, "wlf,mute", GPIOD_OUT_LOW);  in wm8524_codec_probe()
256 	if (IS_ERR(wm8524->mute)) {  in wm8524_codec_probe()
257 		ret = PTR_ERR(wm8524->mute);  in wm8524_codec_probe()
258 		dev_err_probe(&pdev->dev, ret, "Failed to get mute line\n");  in wm8524_codec_probe()
262 	ret = devm_snd_soc_register_component(&pdev->dev,  in wm8524_codec_probe()
265 		dev_err(&pdev->dev, "Failed to register component: %d\n", ret);  in wm8524_codec_probe()
273 		.name	= "wm8524-codec",
279 MODULE_DESCRIPTION("ASoC WM8524 driver");
281 MODULE_ALIAS("platform:wm8524-codec");