1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun // ak4554.c
3*4882a593Smuzhiyun //
4*4882a593Smuzhiyun // Copyright (C) 2013 Renesas Solutions Corp.
5*4882a593Smuzhiyun // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6*4882a593Smuzhiyun
7*4882a593Smuzhiyun #include <linux/module.h>
8*4882a593Smuzhiyun #include <sound/soc.h>
9*4882a593Smuzhiyun
10*4882a593Smuzhiyun /*
11*4882a593Smuzhiyun * ak4554 is very simple DA/AD converter which has no setting register.
12*4882a593Smuzhiyun *
13*4882a593Smuzhiyun * CAUTION
14*4882a593Smuzhiyun *
15*4882a593Smuzhiyun * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J,
16*4882a593Smuzhiyun * and, capture format is SND_SOC_DAIFMT_LEFT_J
17*4882a593Smuzhiyun * on same bit clock, LR clock.
18*4882a593Smuzhiyun * But, this driver doesn't have snd_soc_dai_ops :: set_fmt
19*4882a593Smuzhiyun *
20*4882a593Smuzhiyun * CPU/Codec DAI image
21*4882a593Smuzhiyun *
22*4882a593Smuzhiyun * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554
23*4882a593Smuzhiyun * |
24*4882a593Smuzhiyun * CPU-DAI2 (capture only fmt = LEFT_J) ---+
25*4882a593Smuzhiyun */
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun static const struct snd_soc_dapm_widget ak4554_dapm_widgets[] = {
28*4882a593Smuzhiyun SND_SOC_DAPM_INPUT("AINL"),
29*4882a593Smuzhiyun SND_SOC_DAPM_INPUT("AINR"),
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun SND_SOC_DAPM_OUTPUT("AOUTL"),
32*4882a593Smuzhiyun SND_SOC_DAPM_OUTPUT("AOUTR"),
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
35*4882a593Smuzhiyun static const struct snd_soc_dapm_route ak4554_dapm_routes[] = {
36*4882a593Smuzhiyun { "Capture", NULL, "AINL" },
37*4882a593Smuzhiyun { "Capture", NULL, "AINR" },
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun { "AOUTL", NULL, "Playback" },
40*4882a593Smuzhiyun { "AOUTR", NULL, "Playback" },
41*4882a593Smuzhiyun };
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun static struct snd_soc_dai_driver ak4554_dai = {
44*4882a593Smuzhiyun .name = "ak4554-hifi",
45*4882a593Smuzhiyun .playback = {
46*4882a593Smuzhiyun .stream_name = "Playback",
47*4882a593Smuzhiyun .channels_min = 2,
48*4882a593Smuzhiyun .channels_max = 2,
49*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_8000_48000,
50*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
51*4882a593Smuzhiyun },
52*4882a593Smuzhiyun .capture = {
53*4882a593Smuzhiyun .stream_name = "Capture",
54*4882a593Smuzhiyun .channels_min = 2,
55*4882a593Smuzhiyun .channels_max = 2,
56*4882a593Smuzhiyun .rates = SNDRV_PCM_RATE_8000_48000,
57*4882a593Smuzhiyun .formats = SNDRV_PCM_FMTBIT_S16_LE,
58*4882a593Smuzhiyun },
59*4882a593Smuzhiyun .symmetric_rates = 1,
60*4882a593Smuzhiyun };
61*4882a593Smuzhiyun
62*4882a593Smuzhiyun static const struct snd_soc_component_driver soc_component_dev_ak4554 = {
63*4882a593Smuzhiyun .dapm_widgets = ak4554_dapm_widgets,
64*4882a593Smuzhiyun .num_dapm_widgets = ARRAY_SIZE(ak4554_dapm_widgets),
65*4882a593Smuzhiyun .dapm_routes = ak4554_dapm_routes,
66*4882a593Smuzhiyun .num_dapm_routes = ARRAY_SIZE(ak4554_dapm_routes),
67*4882a593Smuzhiyun .idle_bias_on = 1,
68*4882a593Smuzhiyun .use_pmdown_time = 1,
69*4882a593Smuzhiyun .endianness = 1,
70*4882a593Smuzhiyun .non_legacy_dai_naming = 1,
71*4882a593Smuzhiyun };
72*4882a593Smuzhiyun
ak4554_soc_probe(struct platform_device * pdev)73*4882a593Smuzhiyun static int ak4554_soc_probe(struct platform_device *pdev)
74*4882a593Smuzhiyun {
75*4882a593Smuzhiyun return devm_snd_soc_register_component(&pdev->dev,
76*4882a593Smuzhiyun &soc_component_dev_ak4554,
77*4882a593Smuzhiyun &ak4554_dai, 1);
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun
80*4882a593Smuzhiyun static const struct of_device_id ak4554_of_match[] = {
81*4882a593Smuzhiyun { .compatible = "asahi-kasei,ak4554" },
82*4882a593Smuzhiyun {},
83*4882a593Smuzhiyun };
84*4882a593Smuzhiyun MODULE_DEVICE_TABLE(of, ak4554_of_match);
85*4882a593Smuzhiyun
86*4882a593Smuzhiyun static struct platform_driver ak4554_driver = {
87*4882a593Smuzhiyun .driver = {
88*4882a593Smuzhiyun .name = "ak4554-adc-dac",
89*4882a593Smuzhiyun .of_match_table = ak4554_of_match,
90*4882a593Smuzhiyun },
91*4882a593Smuzhiyun .probe = ak4554_soc_probe,
92*4882a593Smuzhiyun };
93*4882a593Smuzhiyun module_platform_driver(ak4554_driver);
94*4882a593Smuzhiyun
95*4882a593Smuzhiyun MODULE_LICENSE("GPL v2");
96*4882a593Smuzhiyun MODULE_DESCRIPTION("SoC AK4554 driver");
97*4882a593Smuzhiyun MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
98