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1// SPDX-License-Identifier: GPL-2.0
2// ak4554.c
3//
4// Copyright (C) 2013 Renesas Solutions Corp.
5// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6
7#include <linux/module.h>
8#include <sound/soc.h>
9
10/*
11 * ak4554 is very simple DA/AD converter which has no setting register.
12 *
13 * CAUTION
14 *
15 * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J,
16 * and, capture format is SND_SOC_DAIFMT_LEFT_J
17 * on same bit clock, LR clock.
18 * But, this driver doesn't have snd_soc_dai_ops :: set_fmt
19 *
20 * CPU/Codec DAI image
21 *
22 * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554
23 * |
24 * CPU-DAI2 (capture only fmt = LEFT_J) ---+
25 */
26
27static const struct snd_soc_dapm_widget ak4554_dapm_widgets[] = {
28SND_SOC_DAPM_INPUT("AINL"),
29SND_SOC_DAPM_INPUT("AINR"),
30
31SND_SOC_DAPM_OUTPUT("AOUTL"),
32SND_SOC_DAPM_OUTPUT("AOUTR"),
33};
34
35static const struct snd_soc_dapm_route ak4554_dapm_routes[] = {
36 { "Capture", NULL, "AINL" },
37 { "Capture", NULL, "AINR" },
38
39 { "AOUTL", NULL, "Playback" },
40 { "AOUTR", NULL, "Playback" },
41};
42
43static struct snd_soc_dai_driver ak4554_dai = {
44 .name = "ak4554-hifi",
45 .playback = {
46 .stream_name = "Playback",
47 .channels_min = 2,
48 .channels_max = 2,
49 .rates = SNDRV_PCM_RATE_8000_48000,
50 .formats = SNDRV_PCM_FMTBIT_S16_LE,
51 },
52 .capture = {
53 .stream_name = "Capture",
54 .channels_min = 2,
55 .channels_max = 2,
56 .rates = SNDRV_PCM_RATE_8000_48000,
57 .formats = SNDRV_PCM_FMTBIT_S16_LE,
58 },
59 .symmetric_rate = 1,
60};
61
62static const struct snd_soc_component_driver soc_component_dev_ak4554 = {
63 .dapm_widgets = ak4554_dapm_widgets,
64 .num_dapm_widgets = ARRAY_SIZE(ak4554_dapm_widgets),
65 .dapm_routes = ak4554_dapm_routes,
66 .num_dapm_routes = ARRAY_SIZE(ak4554_dapm_routes),
67 .idle_bias_on = 1,
68 .use_pmdown_time = 1,
69 .endianness = 1,
70};
71
72static int ak4554_soc_probe(struct platform_device *pdev)
73{
74 return devm_snd_soc_register_component(&pdev->dev,
75 &soc_component_dev_ak4554,
76 &ak4554_dai, 1);
77}
78
79static const struct of_device_id ak4554_of_match[] = {
80 { .compatible = "asahi-kasei,ak4554" },
81 {},
82};
83MODULE_DEVICE_TABLE(of, ak4554_of_match);
84
85static struct platform_driver ak4554_driver = {
86 .driver = {
87 .name = "ak4554-adc-dac",
88 .of_match_table = ak4554_of_match,
89 },
90 .probe = ak4554_soc_probe,
91};
92module_platform_driver(ak4554_driver);
93
94MODULE_LICENSE("GPL v2");
95MODULE_DESCRIPTION("SoC AK4554 driver");
96MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1/*
2 * ak4554.c
3 *
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/module.h>
13#include <sound/soc.h>
14
15/*
16 * ak4554 is very simple DA/AD converter which has no setting register.
17 *
18 * CAUTION
19 *
20 * ak4554 playback format is SND_SOC_DAIFMT_RIGHT_J,
21 * and, capture format is SND_SOC_DAIFMT_LEFT_J
22 * on same bit clock, LR clock.
23 * But, this driver doesn't have snd_soc_dai_ops :: set_fmt
24 *
25 * CPU/Codec DAI image
26 *
27 * CPU-DAI1 (plaback only fmt = RIGHT_J) --+-- ak4554
28 * |
29 * CPU-DAI2 (capture only fmt = LEFT_J) ---+
30 */
31
32static const struct snd_soc_dapm_widget ak4554_dapm_widgets[] = {
33SND_SOC_DAPM_INPUT("AINL"),
34SND_SOC_DAPM_INPUT("AINR"),
35
36SND_SOC_DAPM_OUTPUT("AOUTL"),
37SND_SOC_DAPM_OUTPUT("AOUTR"),
38};
39
40static const struct snd_soc_dapm_route ak4554_dapm_routes[] = {
41 { "Capture", NULL, "AINL" },
42 { "Capture", NULL, "AINR" },
43
44 { "AOUTL", NULL, "Playback" },
45 { "AOUTR", NULL, "Playback" },
46};
47
48static struct snd_soc_dai_driver ak4554_dai = {
49 .name = "ak4554-hifi",
50 .playback = {
51 .stream_name = "Playback",
52 .channels_min = 2,
53 .channels_max = 2,
54 .rates = SNDRV_PCM_RATE_8000_48000,
55 .formats = SNDRV_PCM_FMTBIT_S16_LE,
56 },
57 .capture = {
58 .stream_name = "Capture",
59 .channels_min = 2,
60 .channels_max = 2,
61 .rates = SNDRV_PCM_RATE_8000_48000,
62 .formats = SNDRV_PCM_FMTBIT_S16_LE,
63 },
64 .symmetric_rates = 1,
65};
66
67static struct snd_soc_codec_driver soc_codec_dev_ak4554 = {
68 .component_driver = {
69 .dapm_widgets = ak4554_dapm_widgets,
70 .num_dapm_widgets = ARRAY_SIZE(ak4554_dapm_widgets),
71 .dapm_routes = ak4554_dapm_routes,
72 .num_dapm_routes = ARRAY_SIZE(ak4554_dapm_routes),
73 },
74};
75
76static int ak4554_soc_probe(struct platform_device *pdev)
77{
78 return snd_soc_register_codec(&pdev->dev,
79 &soc_codec_dev_ak4554,
80 &ak4554_dai, 1);
81}
82
83static int ak4554_soc_remove(struct platform_device *pdev)
84{
85 snd_soc_unregister_codec(&pdev->dev);
86 return 0;
87}
88
89static const struct of_device_id ak4554_of_match[] = {
90 { .compatible = "asahi-kasei,ak4554" },
91 {},
92};
93MODULE_DEVICE_TABLE(of, ak4554_of_match);
94
95static struct platform_driver ak4554_driver = {
96 .driver = {
97 .name = "ak4554-adc-dac",
98 .of_match_table = ak4554_of_match,
99 },
100 .probe = ak4554_soc_probe,
101 .remove = ak4554_soc_remove,
102};
103module_platform_driver(ak4554_driver);
104
105MODULE_LICENSE("GPL");
106MODULE_DESCRIPTION("SoC AK4554 driver");
107MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");