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
66 	 * MCLK supplied to the CODEC - enforce this.  in wm8524_startup()
68 	if (!wm8524->sysclk) {  in wm8524_startup()
69 		dev_err(component->dev,  in wm8524_startup()
71 		return -EINVAL;  in wm8524_startup()
74 	snd_pcm_hw_constraint_list(substream->runtime, 0,  in wm8524_startup()
76 				   &wm8524->rate_constraint);  in wm8524_startup()
78 	gpiod_set_value_cansleep(wm8524->mute, 1);  in wm8524_startup()
86 	struct snd_soc_component *component = dai->component;  in wm8524_shutdown()
87 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_shutdown()  local
89 	gpiod_set_value_cansleep(wm8524->mute, 0);  in wm8524_shutdown()
95 	struct snd_soc_component *component = codec_dai->component;  in wm8524_set_dai_sysclk()
96 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_set_dai_sysclk()  local
100 	wm8524->sysclk = freq;  in wm8524_set_dai_sysclk()
102 	wm8524->rate_constraint.count = 0;  in wm8524_set_dai_sysclk()
118 			dev_dbg(component->dev, "Supported sample rate: %dHz\n",  in wm8524_set_dai_sysclk()
120 			wm8524->rate_constraint_list[j++] = val;  in wm8524_set_dai_sysclk()
121 			wm8524->rate_constraint.count++;  in wm8524_set_dai_sysclk()
124 			dev_dbg(component->dev, "Skipping sample rate: %dHz\n",  in wm8524_set_dai_sysclk()
130 	if (wm8524->rate_constraint.count == 0)  in wm8524_set_dai_sysclk()
131 		return -EINVAL;  in wm8524_set_dai_sysclk()
143 		dev_err(codec_dai->dev, "Invalid DAI format\n");  in wm8524_set_fmt()
144 		return -EINVAL;  in wm8524_set_fmt()
152 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(dai->component);  in wm8524_mute_stream()  local
154 	if (wm8524->mute)  in wm8524_mute_stream()
155 		gpiod_set_value_cansleep(wm8524->mute, mute);  in wm8524_mute_stream()
175 	.name = "wm8524-hifi",
188 	struct wm8524_priv *wm8524 = snd_soc_component_get_drvdata(component);  in wm8524_probe()  local
190 	wm8524->rate_constraint.list = &wm8524->rate_constraint_list[0];  in wm8524_probe()
191 	wm8524->rate_constraint.count =  in wm8524_probe()
192 		ARRAY_SIZE(wm8524->rate_constraint_list);  in wm8524_probe()
209 	{ .compatible = "wlf,wm8524" },
216 	struct wm8524_priv *wm8524;  in wm8524_codec_probe()  local
219 	wm8524 = devm_kzalloc(&pdev->dev, sizeof(struct wm8524_priv),  in wm8524_codec_probe()
221 	if (wm8524 == NULL)  in wm8524_codec_probe()
222 		return -ENOMEM;  in wm8524_codec_probe()
224 	platform_set_drvdata(pdev, wm8524);  in wm8524_codec_probe()
226 	wm8524->mute = devm_gpiod_get(&pdev->dev, "wlf,mute", GPIOD_OUT_LOW);  in wm8524_codec_probe()
227 	if (IS_ERR(wm8524->mute)) {  in wm8524_codec_probe()
228 		ret = PTR_ERR(wm8524->mute);  in wm8524_codec_probe()
229 		dev_err_probe(&pdev->dev, ret, "Failed to get mute line\n");  in wm8524_codec_probe()
233 	ret = devm_snd_soc_register_component(&pdev->dev,  in wm8524_codec_probe()
236 		dev_err(&pdev->dev, "Failed to register component: %d\n", ret);  in wm8524_codec_probe()
244 		.name	= "wm8524-codec",
250 MODULE_DESCRIPTION("ASoC WM8524 driver");
252 MODULE_ALIAS("platform:wm8524-codec");