1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * linux/sound/soc/pxa/palm27x.c
4 *
5 * SoC Audio driver for Palm T|X, T5 and LifeDrive
6 *
7 * based on tosa.c
8 *
9 * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
10 */
11
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/device.h>
15 #include <linux/gpio.h>
16
17 #include <sound/core.h>
18 #include <sound/pcm.h>
19 #include <sound/soc.h>
20 #include <sound/jack.h>
21
22 #include <asm/mach-types.h>
23 #include <linux/platform_data/asoc-pxa.h>
24 #include <linux/platform_data/asoc-palm27x.h>
25
26 static struct snd_soc_jack hs_jack;
27
28 /* Headphones jack detection DAPM pins */
29 static struct snd_soc_jack_pin hs_jack_pins[] = {
30 {
31 .pin = "Headphone Jack",
32 .mask = SND_JACK_HEADPHONE,
33 },
34 };
35
36 /* Headphones jack detection gpios */
37 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
38 [0] = {
39 /* gpio is set on per-platform basis */
40 .name = "hp-gpio",
41 .report = SND_JACK_HEADPHONE,
42 .debounce_time = 200,
43 },
44 };
45
46 /* Palm27x machine dapm widgets */
47 static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
48 SND_SOC_DAPM_HP("Headphone Jack", NULL),
49 SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
50 SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
51 };
52
53 /* PalmTX audio map */
54 static const struct snd_soc_dapm_route audio_map[] = {
55 /* headphone connected to HPOUTL, HPOUTR */
56 {"Headphone Jack", NULL, "HPOUTL"},
57 {"Headphone Jack", NULL, "HPOUTR"},
58
59 /* ext speaker connected to ROUT2, LOUT2 */
60 {"Ext. Speaker", NULL, "LOUT2"},
61 {"Ext. Speaker", NULL, "ROUT2"},
62
63 /* mic connected to MIC1 */
64 {"MIC1", NULL, "Ext. Microphone"},
65 };
66
67 static struct snd_soc_card palm27x_asoc;
68
palm27x_ac97_init(struct snd_soc_pcm_runtime * rtd)69 static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
70 {
71 int err;
72
73 /* Jack detection API stuff */
74 err = snd_soc_card_jack_new_pins(rtd->card, "Headphone Jack",
75 SND_JACK_HEADPHONE, &hs_jack,
76 hs_jack_pins,
77 ARRAY_SIZE(hs_jack_pins));
78 if (err)
79 return err;
80
81 err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
82 hs_jack_gpios);
83
84 return err;
85 }
86
87 SND_SOC_DAILINK_DEFS(hifi,
88 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
89 DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
90 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
91
92 SND_SOC_DAILINK_DEFS(aux,
93 DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
94 DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
95 DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
96
97 static struct snd_soc_dai_link palm27x_dai[] = {
98 {
99 .name = "AC97 HiFi",
100 .stream_name = "AC97 HiFi",
101 .init = palm27x_ac97_init,
102 SND_SOC_DAILINK_REG(hifi),
103 },
104 {
105 .name = "AC97 Aux",
106 .stream_name = "AC97 Aux",
107 SND_SOC_DAILINK_REG(aux),
108 },
109 };
110
111 static struct snd_soc_card palm27x_asoc = {
112 .name = "Palm/PXA27x",
113 .owner = THIS_MODULE,
114 .dai_link = palm27x_dai,
115 .num_links = ARRAY_SIZE(palm27x_dai),
116 .dapm_widgets = palm27x_dapm_widgets,
117 .num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
118 .dapm_routes = audio_map,
119 .num_dapm_routes = ARRAY_SIZE(audio_map),
120 .fully_routed = true,
121 };
122
palm27x_asoc_probe(struct platform_device * pdev)123 static int palm27x_asoc_probe(struct platform_device *pdev)
124 {
125 int ret;
126
127 if (!(machine_is_palmtx() || machine_is_palmt5() ||
128 machine_is_palmld() || machine_is_palmte2()))
129 return -ENODEV;
130
131 if (!pdev->dev.platform_data) {
132 dev_err(&pdev->dev, "please supply platform_data\n");
133 return -ENODEV;
134 }
135
136 hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
137 (pdev->dev.platform_data))->jack_gpio;
138
139 palm27x_asoc.dev = &pdev->dev;
140
141 ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
142 if (ret)
143 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
144 ret);
145 return ret;
146 }
147
148 static struct platform_driver palm27x_wm9712_driver = {
149 .probe = palm27x_asoc_probe,
150 .driver = {
151 .name = "palm27x-asoc",
152 .pm = &snd_soc_pm_ops,
153 },
154 };
155
156 module_platform_driver(palm27x_wm9712_driver);
157
158 /* Module information */
159 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
160 MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
161 MODULE_LICENSE("GPL");
162 MODULE_ALIAS("platform:palm27x-asoc");
163