1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-or-later
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * SiRF Audio port driver
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun #include <linux/module.h>
8*4882a593Smuzhiyun #include <sound/soc.h>
9*4882a593Smuzhiyun #include <sound/dmaengine_pcm.h>
10*4882a593Smuzhiyun
11*4882a593Smuzhiyun struct sirf_audio_port {
12*4882a593Smuzhiyun struct regmap *regmap;
13*4882a593Smuzhiyun struct snd_dmaengine_dai_dma_data playback_dma_data;
14*4882a593Smuzhiyun struct snd_dmaengine_dai_dma_data capture_dma_data;
15*4882a593Smuzhiyun };
16*4882a593Smuzhiyun
17*4882a593Smuzhiyun
sirf_audio_port_dai_probe(struct snd_soc_dai * dai)18*4882a593Smuzhiyun static int sirf_audio_port_dai_probe(struct snd_soc_dai *dai)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun struct sirf_audio_port *port = snd_soc_dai_get_drvdata(dai);
21*4882a593Smuzhiyun
22*4882a593Smuzhiyun snd_soc_dai_init_dma_data(dai, &port->playback_dma_data,
23*4882a593Smuzhiyun &port->capture_dma_data);
24*4882a593Smuzhiyun return 0;
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun static struct snd_soc_dai_driver sirf_audio_port_dai = {
28*4882a593Smuzhiyun .probe = sirf_audio_port_dai_probe,
29*4882a593Smuzhiyun .name = "sirf-audio-port",
30*4882a593Smuzhiyun .id = 0,
31*4882a593Smuzhiyun .playback = {
32*4882a593Smuzhiyun .channels_min = 2,
33*4882a593Smuzhiyun .channels_max = 2,
34*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_48000,
35*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
36*4882a593Smuzhiyun },
37*4882a593Smuzhiyun .capture = {
38*4882a593Smuzhiyun .channels_min = 1,
39*4882a593Smuzhiyun .channels_max = 2,
40*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_48000,
41*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
42*4882a593Smuzhiyun },
43*4882a593Smuzhiyun };
44*4882a593Smuzhiyun
45*4882a593Smuzhiyun static const struct snd_soc_component_driver sirf_audio_port_component = {
46*4882a593Smuzhiyun .name = "sirf-audio-port",
47*4882a593Smuzhiyun };
48*4882a593Smuzhiyun
sirf_audio_port_probe(struct platform_device * pdev)49*4882a593Smuzhiyun static int sirf_audio_port_probe(struct platform_device *pdev)
50*4882a593Smuzhiyun {
51*4882a593Smuzhiyun int ret;
52*4882a593Smuzhiyun struct sirf_audio_port *port;
53*4882a593Smuzhiyun
54*4882a593Smuzhiyun port = devm_kzalloc(&pdev->dev,
55*4882a593Smuzhiyun sizeof(struct sirf_audio_port), GFP_KERNEL);
56*4882a593Smuzhiyun if (!port)
57*4882a593Smuzhiyun return -ENOMEM;
58*4882a593Smuzhiyun
59*4882a593Smuzhiyun ret = devm_snd_soc_register_component(&pdev->dev,
60*4882a593Smuzhiyun &sirf_audio_port_component, &sirf_audio_port_dai, 1);
61*4882a593Smuzhiyun if (ret)
62*4882a593Smuzhiyun return ret;
63*4882a593Smuzhiyun
64*4882a593Smuzhiyun platform_set_drvdata(pdev, port);
65*4882a593Smuzhiyun return devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun static const struct of_device_id sirf_audio_port_of_match[] = {
69*4882a593Smuzhiyun { .compatible = "sirf,audio-port", },
70*4882a593Smuzhiyun {}
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, sirf_audio_port_of_match);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun static struct platform_driver sirf_audio_port_driver = {
75*4882a593Smuzhiyun .driver = {
76*4882a593Smuzhiyun .name = "sirf-audio-port",
77*4882a593Smuzhiyun .of_match_table = sirf_audio_port_of_match,
78*4882a593Smuzhiyun },
79*4882a593Smuzhiyun .probe = sirf_audio_port_probe,
80*4882a593Smuzhiyun };
81*4882a593Smuzhiyun
82*4882a593Smuzhiyun module_platform_driver(sirf_audio_port_driver);
83*4882a593Smuzhiyun
84*4882a593Smuzhiyun MODULE_DESCRIPTION("SiRF Audio Port driver");
85*4882a593Smuzhiyun MODULE_AUTHOR("RongJun Ying <Rongjun.Ying@csr.com>");
86*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
87