1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * This is a simple driver for the GTM601 Voice PCM interface
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (C) 2015 Goldelico GmbH
6*4882a593Smuzhiyun *
7*4882a593Smuzhiyun * Author: Marek Belisko <marek@goldelico.com>
8*4882a593Smuzhiyun *
9*4882a593Smuzhiyun * Based on wm8727.c driver
10*4882a593Smuzhiyun */
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <linux/init.h>
13*4882a593Smuzhiyun #include <linux/slab.h>
14*4882a593Smuzhiyun #include <linux/module.h>
15*4882a593Smuzhiyun #include <linux/kernel.h>
16*4882a593Smuzhiyun #include <linux/of_device.h>
17*4882a593Smuzhiyun #include <sound/core.h>
18*4882a593Smuzhiyun #include <sound/pcm.h>
19*4882a593Smuzhiyun #include <sound/initval.h>
20*4882a593Smuzhiyun #include <sound/soc.h>
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun static const struct snd_soc_dapm_widget gtm601_dapm_widgets[] = {
23*4882a593Smuzhiyun SND_SOC_DAPM_OUTPUT("AOUT"),
24*4882a593Smuzhiyun SND_SOC_DAPM_INPUT("AIN"),
25*4882a593Smuzhiyun };
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun static const struct snd_soc_dapm_route gtm601_dapm_routes[] = {
28*4882a593Smuzhiyun { "AOUT", NULL, "Playback" },
29*4882a593Smuzhiyun { "Capture", NULL, "AIN" },
30*4882a593Smuzhiyun };
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun static struct snd_soc_dai_driver gtm601_dai = {
33*4882a593Smuzhiyun .name = "gtm601",
34*4882a593Smuzhiyun .playback = {
35*4882a593Smuzhiyun .stream_name = "Playback",
36*4882a593Smuzhiyun .channels_min = 1,
37*4882a593Smuzhiyun .channels_max = 1,
38*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_8000,
39*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
40*4882a593Smuzhiyun },
41*4882a593Smuzhiyun .capture = {
42*4882a593Smuzhiyun .stream_name = "Capture",
43*4882a593Smuzhiyun .channels_min = 1,
44*4882a593Smuzhiyun .channels_max = 1,
45*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_8000,
46*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
47*4882a593Smuzhiyun },
48*4882a593Smuzhiyun };
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun static struct snd_soc_dai_driver bm818_dai = {
51*4882a593Smuzhiyun .name = "bm818",
52*4882a593Smuzhiyun .playback = {
53*4882a593Smuzhiyun .stream_name = "Playback",
54*4882a593Smuzhiyun .channels_min = 2,
55*4882a593Smuzhiyun .channels_max = 2,
56*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_48000,
57*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
58*4882a593Smuzhiyun },
59*4882a593Smuzhiyun .capture = {
60*4882a593Smuzhiyun .stream_name = "Capture",
61*4882a593Smuzhiyun .channels_min = 2,
62*4882a593Smuzhiyun .channels_max = 2,
63*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_48000,
64*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
65*4882a593Smuzhiyun },
66*4882a593Smuzhiyun };
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun static const struct snd_soc_component_driver soc_component_dev_gtm601 = {
69*4882a593Smuzhiyun .dapm_widgets = gtm601_dapm_widgets,
70*4882a593Smuzhiyun .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets),
71*4882a593Smuzhiyun .dapm_routes = gtm601_dapm_routes,
72*4882a593Smuzhiyun .num_dapm_routes = ARRAY_SIZE(gtm601_dapm_routes),
73*4882a593Smuzhiyun .idle_bias_on = 1,
74*4882a593Smuzhiyun .use_pmdown_time = 1,
75*4882a593Smuzhiyun .endianness = 1,
76*4882a593Smuzhiyun .non_legacy_dai_naming = 1,
77*4882a593Smuzhiyun };
78*4882a593Smuzhiyun
gtm601_platform_probe(struct platform_device * pdev)79*4882a593Smuzhiyun static int gtm601_platform_probe(struct platform_device *pdev)
80*4882a593Smuzhiyun {
81*4882a593Smuzhiyun const struct snd_soc_dai_driver *dai_driver;
82*4882a593Smuzhiyun
83*4882a593Smuzhiyun dai_driver = of_device_get_match_data(&pdev->dev);
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun return devm_snd_soc_register_component(&pdev->dev,
86*4882a593Smuzhiyun &soc_component_dev_gtm601,
87*4882a593Smuzhiyun (struct snd_soc_dai_driver *)dai_driver, 1);
88*4882a593Smuzhiyun }
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun static const struct of_device_id gtm601_codec_of_match[] = {
91*4882a593Smuzhiyun { .compatible = "option,gtm601", .data = (void *)>m601_dai },
92*4882a593Smuzhiyun { .compatible = "broadmobi,bm818", .data = (void *)&bm818_dai },
93*4882a593Smuzhiyun {},
94*4882a593Smuzhiyun };
95*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, gtm601_codec_of_match);
96*4882a593Smuzhiyun
97*4882a593Smuzhiyun static struct platform_driver gtm601_codec_driver = {
98*4882a593Smuzhiyun .driver = {
99*4882a593Smuzhiyun .name = "gtm601",
100*4882a593Smuzhiyun .of_match_table = of_match_ptr(gtm601_codec_of_match),
101*4882a593Smuzhiyun },
102*4882a593Smuzhiyun .probe = gtm601_platform_probe,
103*4882a593Smuzhiyun };
104*4882a593Smuzhiyun
105*4882a593Smuzhiyun module_platform_driver(gtm601_codec_driver);
106*4882a593Smuzhiyun
107*4882a593Smuzhiyun MODULE_DESCRIPTION("ASoC gtm601 driver");
108*4882a593Smuzhiyun MODULE_AUTHOR("Marek Belisko <marek@goldelico.com>");
109*4882a593Smuzhiyun MODULE_LICENSE("GPL");
110*4882a593Smuzhiyun MODULE_ALIAS("platform:gtm601");
111