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Linux kernel mirror (for testing)
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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * trimslice.c - TrimSlice machine ASoC driver
4 *
5 * Copyright (C) 2011 - CompuLab, Ltd.
6 * Author: Mike Rapoport <mike@compulab.co.il>
7 *
8 * Based on code copyright/by:
9 * Author: Stephen Warren <swarren@nvidia.com>
10 * Copyright (C) 2010-2011 - NVIDIA, Inc.
11 */
12
13#include <linux/module.h>
14#include <linux/of.h>
15#include <linux/platform_device.h>
16#include <linux/slab.h>
17
18#include <sound/core.h>
19#include <sound/jack.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23
24#include "../codecs/tlv320aic23.h"
25
26#include "tegra_asoc_utils.h"
27
28#define DRV_NAME "tegra-snd-trimslice"
29
30struct tegra_trimslice {
31 struct tegra_asoc_utils_data util_data;
32};
33
34static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream,
35 struct snd_pcm_hw_params *params)
36{
37 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
38 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
39 struct snd_soc_card *card = rtd->card;
40 struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
41 int srate, mclk;
42 int err;
43
44 srate = params_rate(params);
45 mclk = 128 * srate;
46
47 err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
48 if (err < 0) {
49 dev_err(card->dev, "Can't configure clocks\n");
50 return err;
51 }
52
53 err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
54 SND_SOC_CLOCK_IN);
55 if (err < 0) {
56 dev_err(card->dev, "codec_dai clock not set\n");
57 return err;
58 }
59
60 return 0;
61}
62
63static const struct snd_soc_ops trimslice_asoc_ops = {
64 .hw_params = trimslice_asoc_hw_params,
65};
66
67static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
68 SND_SOC_DAPM_HP("Line Out", NULL),
69 SND_SOC_DAPM_LINE("Line In", NULL),
70};
71
72static const struct snd_soc_dapm_route trimslice_audio_map[] = {
73 {"Line Out", NULL, "LOUT"},
74 {"Line Out", NULL, "ROUT"},
75
76 {"LLINEIN", NULL, "Line In"},
77 {"RLINEIN", NULL, "Line In"},
78};
79
80SND_SOC_DAILINK_DEFS(single_dsp,
81 DAILINK_COMP_ARRAY(COMP_EMPTY()),
82 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic23-hifi")),
83 DAILINK_COMP_ARRAY(COMP_EMPTY()));
84
85static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
86 .name = "TLV320AIC23",
87 .stream_name = "AIC23",
88 .ops = &trimslice_asoc_ops,
89 .dai_fmt = SND_SOC_DAIFMT_I2S |
90 SND_SOC_DAIFMT_NB_NF |
91 SND_SOC_DAIFMT_CBS_CFS,
92 SND_SOC_DAILINK_REG(single_dsp),
93};
94
95static struct snd_soc_card snd_soc_trimslice = {
96 .name = "tegra-trimslice",
97 .owner = THIS_MODULE,
98 .dai_link = &trimslice_tlv320aic23_dai,
99 .num_links = 1,
100
101 .dapm_widgets = trimslice_dapm_widgets,
102 .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
103 .dapm_routes = trimslice_audio_map,
104 .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
105 .fully_routed = true,
106};
107
108static int tegra_snd_trimslice_probe(struct platform_device *pdev)
109{
110 struct device_node *np = pdev->dev.of_node;
111 struct snd_soc_card *card = &snd_soc_trimslice;
112 struct tegra_trimslice *trimslice;
113 int ret;
114
115 trimslice = devm_kzalloc(&pdev->dev, sizeof(struct tegra_trimslice),
116 GFP_KERNEL);
117 if (!trimslice)
118 return -ENOMEM;
119
120 card->dev = &pdev->dev;
121 snd_soc_card_set_drvdata(card, trimslice);
122
123 trimslice_tlv320aic23_dai.codecs->of_node = of_parse_phandle(np,
124 "nvidia,audio-codec", 0);
125 if (!trimslice_tlv320aic23_dai.codecs->of_node) {
126 dev_err(&pdev->dev,
127 "Property 'nvidia,audio-codec' missing or invalid\n");
128 return -EINVAL;
129 }
130
131 trimslice_tlv320aic23_dai.cpus->of_node = of_parse_phandle(np,
132 "nvidia,i2s-controller", 0);
133 if (!trimslice_tlv320aic23_dai.cpus->of_node) {
134 dev_err(&pdev->dev,
135 "Property 'nvidia,i2s-controller' missing or invalid\n");
136 return -EINVAL;
137 }
138
139 trimslice_tlv320aic23_dai.platforms->of_node =
140 trimslice_tlv320aic23_dai.cpus->of_node;
141
142 ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
143 if (ret)
144 return ret;
145
146 ret = devm_snd_soc_register_card(&pdev->dev, card);
147 if (ret)
148 return dev_err_probe(&pdev->dev, ret,
149 "snd_soc_register_card failed\n");
150
151 return 0;
152}
153
154static const struct of_device_id trimslice_of_match[] = {
155 { .compatible = "nvidia,tegra-audio-trimslice", },
156 {},
157};
158MODULE_DEVICE_TABLE(of, trimslice_of_match);
159
160static struct platform_driver tegra_snd_trimslice_driver = {
161 .driver = {
162 .name = DRV_NAME,
163 .of_match_table = trimslice_of_match,
164 },
165 .probe = tegra_snd_trimslice_probe,
166};
167module_platform_driver(tegra_snd_trimslice_driver);
168
169MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
170MODULE_DESCRIPTION("Trimslice machine ASoC driver");
171MODULE_LICENSE("GPL");
172MODULE_ALIAS("platform:" DRV_NAME);