This source file includes following definitions.
- tegra_alc5632_asoc_hw_params
- tegra_alc5632_asoc_init
- tegra_alc5632_probe
- tegra_alc5632_remove
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13 #include <linux/module.h>
14 #include <linux/platform_device.h>
15 #include <linux/slab.h>
16 #include <linux/gpio.h>
17 #include <linux/of_gpio.h>
18
19 #include <sound/core.h>
20 #include <sound/jack.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24
25 #include "../codecs/alc5632.h"
26
27 #include "tegra_asoc_utils.h"
28
29 #define DRV_NAME "tegra-alc5632"
30
31 struct tegra_alc5632 {
32 struct tegra_asoc_utils_data util_data;
33 int gpio_hp_det;
34 };
35
36 static int tegra_alc5632_asoc_hw_params(struct snd_pcm_substream *substream,
37 struct snd_pcm_hw_params *params)
38 {
39 struct snd_soc_pcm_runtime *rtd = substream->private_data;
40 struct snd_soc_dai *codec_dai = rtd->codec_dai;
41 struct snd_soc_card *card = rtd->card;
42 struct tegra_alc5632 *alc5632 = snd_soc_card_get_drvdata(card);
43 int srate, mclk;
44 int err;
45
46 srate = params_rate(params);
47 mclk = 512 * srate;
48
49 err = tegra_asoc_utils_set_rate(&alc5632->util_data, srate, mclk);
50 if (err < 0) {
51 dev_err(card->dev, "Can't configure clocks\n");
52 return err;
53 }
54
55 err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
56 SND_SOC_CLOCK_IN);
57 if (err < 0) {
58 dev_err(card->dev, "codec_dai clock not set\n");
59 return err;
60 }
61
62 return 0;
63 }
64
65 static const struct snd_soc_ops tegra_alc5632_asoc_ops = {
66 .hw_params = tegra_alc5632_asoc_hw_params,
67 };
68
69 static struct snd_soc_jack tegra_alc5632_hs_jack;
70
71 static struct snd_soc_jack_pin tegra_alc5632_hs_jack_pins[] = {
72 {
73 .pin = "Headset Mic",
74 .mask = SND_JACK_MICROPHONE,
75 },
76 {
77 .pin = "Headset Stereophone",
78 .mask = SND_JACK_HEADPHONE,
79 },
80 };
81
82 static struct snd_soc_jack_gpio tegra_alc5632_hp_jack_gpio = {
83 .name = "Headset detection",
84 .report = SND_JACK_HEADSET,
85 .debounce_time = 150,
86 };
87
88 static const struct snd_soc_dapm_widget tegra_alc5632_dapm_widgets[] = {
89 SND_SOC_DAPM_SPK("Int Spk", NULL),
90 SND_SOC_DAPM_HP("Headset Stereophone", NULL),
91 SND_SOC_DAPM_MIC("Headset Mic", NULL),
92 SND_SOC_DAPM_MIC("Digital Mic", NULL),
93 };
94
95 static const struct snd_kcontrol_new tegra_alc5632_controls[] = {
96 SOC_DAPM_PIN_SWITCH("Int Spk"),
97 };
98
99 static int tegra_alc5632_asoc_init(struct snd_soc_pcm_runtime *rtd)
100 {
101 int ret;
102 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(rtd->card);
103
104 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
105 SND_JACK_HEADSET,
106 &tegra_alc5632_hs_jack,
107 tegra_alc5632_hs_jack_pins,
108 ARRAY_SIZE(tegra_alc5632_hs_jack_pins));
109 if (ret)
110 return ret;
111
112 if (gpio_is_valid(machine->gpio_hp_det)) {
113 tegra_alc5632_hp_jack_gpio.gpio = machine->gpio_hp_det;
114 snd_soc_jack_add_gpios(&tegra_alc5632_hs_jack,
115 1,
116 &tegra_alc5632_hp_jack_gpio);
117 }
118
119 snd_soc_dapm_force_enable_pin(&rtd->card->dapm, "MICBIAS1");
120
121 return 0;
122 }
123
124 SND_SOC_DAILINK_DEFS(pcm,
125 DAILINK_COMP_ARRAY(COMP_EMPTY()),
126 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "alc5632-hifi")),
127 DAILINK_COMP_ARRAY(COMP_EMPTY()));
128
129 static struct snd_soc_dai_link tegra_alc5632_dai = {
130 .name = "ALC5632",
131 .stream_name = "ALC5632 PCM",
132 .init = tegra_alc5632_asoc_init,
133 .ops = &tegra_alc5632_asoc_ops,
134 .dai_fmt = SND_SOC_DAIFMT_I2S
135 | SND_SOC_DAIFMT_NB_NF
136 | SND_SOC_DAIFMT_CBS_CFS,
137 SND_SOC_DAILINK_REG(pcm),
138 };
139
140 static struct snd_soc_card snd_soc_tegra_alc5632 = {
141 .name = "tegra-alc5632",
142 .owner = THIS_MODULE,
143 .dai_link = &tegra_alc5632_dai,
144 .num_links = 1,
145 .controls = tegra_alc5632_controls,
146 .num_controls = ARRAY_SIZE(tegra_alc5632_controls),
147 .dapm_widgets = tegra_alc5632_dapm_widgets,
148 .num_dapm_widgets = ARRAY_SIZE(tegra_alc5632_dapm_widgets),
149 .fully_routed = true,
150 };
151
152 static int tegra_alc5632_probe(struct platform_device *pdev)
153 {
154 struct device_node *np = pdev->dev.of_node;
155 struct snd_soc_card *card = &snd_soc_tegra_alc5632;
156 struct tegra_alc5632 *alc5632;
157 int ret;
158
159 alc5632 = devm_kzalloc(&pdev->dev,
160 sizeof(struct tegra_alc5632), GFP_KERNEL);
161 if (!alc5632)
162 return -ENOMEM;
163
164 card->dev = &pdev->dev;
165 snd_soc_card_set_drvdata(card, alc5632);
166
167 alc5632->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
168 if (alc5632->gpio_hp_det == -EPROBE_DEFER)
169 return -EPROBE_DEFER;
170
171 ret = snd_soc_of_parse_card_name(card, "nvidia,model");
172 if (ret)
173 goto err;
174
175 ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
176 if (ret)
177 goto err;
178
179 tegra_alc5632_dai.codecs->of_node = of_parse_phandle(
180 pdev->dev.of_node, "nvidia,audio-codec", 0);
181
182 if (!tegra_alc5632_dai.codecs->of_node) {
183 dev_err(&pdev->dev,
184 "Property 'nvidia,audio-codec' missing or invalid\n");
185 ret = -EINVAL;
186 goto err;
187 }
188
189 tegra_alc5632_dai.cpus->of_node = of_parse_phandle(np,
190 "nvidia,i2s-controller", 0);
191 if (!tegra_alc5632_dai.cpus->of_node) {
192 dev_err(&pdev->dev,
193 "Property 'nvidia,i2s-controller' missing or invalid\n");
194 ret = -EINVAL;
195 goto err_put_codec_of_node;
196 }
197
198 tegra_alc5632_dai.platforms->of_node = tegra_alc5632_dai.cpus->of_node;
199
200 ret = tegra_asoc_utils_init(&alc5632->util_data, &pdev->dev);
201 if (ret)
202 goto err_put_cpu_of_node;
203
204 ret = snd_soc_register_card(card);
205 if (ret) {
206 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
207 ret);
208 goto err_fini_utils;
209 }
210
211 return 0;
212
213 err_fini_utils:
214 tegra_asoc_utils_fini(&alc5632->util_data);
215 err_put_cpu_of_node:
216 of_node_put(tegra_alc5632_dai.cpus->of_node);
217 tegra_alc5632_dai.cpus->of_node = NULL;
218 tegra_alc5632_dai.platforms->of_node = NULL;
219 err_put_codec_of_node:
220 of_node_put(tegra_alc5632_dai.codecs->of_node);
221 tegra_alc5632_dai.codecs->of_node = NULL;
222 err:
223 return ret;
224 }
225
226 static int tegra_alc5632_remove(struct platform_device *pdev)
227 {
228 struct snd_soc_card *card = platform_get_drvdata(pdev);
229 struct tegra_alc5632 *machine = snd_soc_card_get_drvdata(card);
230
231 snd_soc_unregister_card(card);
232
233 tegra_asoc_utils_fini(&machine->util_data);
234
235 of_node_put(tegra_alc5632_dai.cpus->of_node);
236 tegra_alc5632_dai.cpus->of_node = NULL;
237 tegra_alc5632_dai.platforms->of_node = NULL;
238 of_node_put(tegra_alc5632_dai.codecs->of_node);
239 tegra_alc5632_dai.codecs->of_node = NULL;
240
241 return 0;
242 }
243
244 static const struct of_device_id tegra_alc5632_of_match[] = {
245 { .compatible = "nvidia,tegra-audio-alc5632", },
246 {},
247 };
248
249 static struct platform_driver tegra_alc5632_driver = {
250 .driver = {
251 .name = DRV_NAME,
252 .pm = &snd_soc_pm_ops,
253 .of_match_table = tegra_alc5632_of_match,
254 },
255 .probe = tegra_alc5632_probe,
256 .remove = tegra_alc5632_remove,
257 };
258 module_platform_driver(tegra_alc5632_driver);
259
260 MODULE_AUTHOR("Leon Romanovsky <leon@leon.nu>");
261 MODULE_DESCRIPTION("Tegra+ALC5632 machine ASoC driver");
262 MODULE_LICENSE("GPL");
263 MODULE_ALIAS("platform:" DRV_NAME);
264 MODULE_DEVICE_TABLE(of, tegra_alc5632_of_match);