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ASoC: Tegra+WM8903 machine: Use devm_ APIs and module_platform_driver
[mirror_ubuntu-zesty-kernel.git] / sound / soc / tegra / trimslice.c
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1/*
2 * trimslice.c - TrimSlice machine ASoC driver
3 *
4 * Copyright (C) 2011 - CompuLab, Ltd.
5 * Author: Mike Rapoport <mike@compulab.co.il>
6 *
7 * Based on code copyright/by:
8 * Author: Stephen Warren <swarren@nvidia.com>
9 * Copyright (C) 2010-2011 - NVIDIA, Inc.
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * version 2 as published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
23 * 02110-1301 USA
24 *
25 */
26
27#include <asm/mach-types.h>
28
29#include <linux/module.h>
30#include <linux/platform_device.h>
31#include <linux/slab.h>
32
33#include <sound/core.h>
34#include <sound/jack.h>
35#include <sound/pcm.h>
36#include <sound/pcm_params.h>
37#include <sound/soc.h>
38
39#include "../codecs/tlv320aic23.h"
40
41#include "tegra_das.h"
42#include "tegra_i2s.h"
43#include "tegra_pcm.h"
44#include "tegra_asoc_utils.h"
45
46#define DRV_NAME "tegra-snd-trimslice"
47
48struct tegra_trimslice {
49 struct tegra_asoc_utils_data util_data;
50};
51
52static int trimslice_asoc_hw_params(struct snd_pcm_substream *substream,
53 struct snd_pcm_hw_params *params)
54{
55 struct snd_soc_pcm_runtime *rtd = substream->private_data;
56 struct snd_soc_dai *codec_dai = rtd->codec_dai;
57 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
58 struct snd_soc_codec *codec = rtd->codec;
59 struct snd_soc_card *card = codec->card;
60 struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
61 int srate, mclk;
62 int err;
63
64 srate = params_rate(params);
65 mclk = 128 * srate;
66
67 err = tegra_asoc_utils_set_rate(&trimslice->util_data, srate, mclk);
68 if (err < 0) {
69 dev_err(card->dev, "Can't configure clocks\n");
70 return err;
71 }
72
73 err = snd_soc_dai_set_fmt(codec_dai,
74 SND_SOC_DAIFMT_I2S |
75 SND_SOC_DAIFMT_NB_NF |
76 SND_SOC_DAIFMT_CBS_CFS);
77 if (err < 0) {
78 dev_err(card->dev, "codec_dai fmt not set\n");
79 return err;
80 }
81
82 err = snd_soc_dai_set_fmt(cpu_dai,
83 SND_SOC_DAIFMT_I2S |
84 SND_SOC_DAIFMT_NB_NF |
85 SND_SOC_DAIFMT_CBS_CFS);
86 if (err < 0) {
87 dev_err(card->dev, "cpu_dai fmt not set\n");
88 return err;
89 }
90
91 err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
92 SND_SOC_CLOCK_IN);
93 if (err < 0) {
94 dev_err(card->dev, "codec_dai clock not set\n");
95 return err;
96 }
97
98 return 0;
99}
100
101static struct snd_soc_ops trimslice_asoc_ops = {
102 .hw_params = trimslice_asoc_hw_params,
103};
104
105static const struct snd_soc_dapm_widget trimslice_dapm_widgets[] = {
106 SND_SOC_DAPM_HP("Line Out", NULL),
107 SND_SOC_DAPM_LINE("Line In", NULL),
108};
109
110static const struct snd_soc_dapm_route trimslice_audio_map[] = {
111 {"Line Out", NULL, "LOUT"},
112 {"Line Out", NULL, "ROUT"},
113
114 {"LLINEIN", NULL, "Line In"},
115 {"RLINEIN", NULL, "Line In"},
116};
117
118static int trimslice_asoc_init(struct snd_soc_pcm_runtime *rtd)
119{
120 struct snd_soc_codec *codec = rtd->codec;
65713ce8 121 struct snd_soc_card *card = codec->card;
1307394a 122 struct snd_soc_dapm_context *dapm = &codec->dapm;
65713ce8
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123 int ret;
124
125 ret = tegra_das_connect_dap_to_dac(TEGRA_DAS_DAP_ID_1,
126 TEGRA_DAS_DAP_SEL_DAC1);
127 if (ret) {
128 dev_err(card->dev, "Can't set up DAS DAP connection\n");
129 return ret;
130 }
131 ret = tegra_das_connect_dac_to_dap(TEGRA_DAS_DAC_ID_1,
132 TEGRA_DAS_DAC_SEL_DAP1);
133 if (ret) {
134 dev_err(card->dev, "Can't set up DAS DAC connection\n");
135 return ret;
136 }
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137
138 snd_soc_dapm_nc_pin(dapm, "LHPOUT");
139 snd_soc_dapm_nc_pin(dapm, "RHPOUT");
140 snd_soc_dapm_nc_pin(dapm, "MICIN");
141
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142 return 0;
143}
144
145static struct snd_soc_dai_link trimslice_tlv320aic23_dai = {
146 .name = "TLV320AIC23",
147 .stream_name = "AIC23",
148 .codec_name = "tlv320aic23-codec.2-001a",
149 .platform_name = "tegra-pcm-audio",
150 .cpu_dai_name = "tegra-i2s.0",
151 .codec_dai_name = "tlv320aic23-hifi",
152 .init = trimslice_asoc_init,
153 .ops = &trimslice_asoc_ops,
154};
155
156static struct snd_soc_card snd_soc_trimslice = {
157 .name = "tegra-trimslice",
158 .dai_link = &trimslice_tlv320aic23_dai,
159 .num_links = 1,
160
161 .dapm_widgets = trimslice_dapm_widgets,
162 .num_dapm_widgets = ARRAY_SIZE(trimslice_dapm_widgets),
163 .dapm_routes = trimslice_audio_map,
164 .num_dapm_routes = ARRAY_SIZE(trimslice_audio_map),
165};
166
167static __devinit int tegra_snd_trimslice_probe(struct platform_device *pdev)
168{
169 struct snd_soc_card *card = &snd_soc_trimslice;
170 struct tegra_trimslice *trimslice;
171 int ret;
172
173 trimslice = kzalloc(sizeof(struct tegra_trimslice), GFP_KERNEL);
174 if (!trimslice) {
175 dev_err(&pdev->dev, "Can't allocate tegra_trimslice\n");
176 return -ENOMEM;
177 }
178
179 ret = tegra_asoc_utils_init(&trimslice->util_data, &pdev->dev);
180 if (ret)
181 goto err_free_trimslice;
182
183 card->dev = &pdev->dev;
184 platform_set_drvdata(pdev, card);
185 snd_soc_card_set_drvdata(card, trimslice);
186
187 ret = snd_soc_register_card(card);
188 if (ret) {
189 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
190 ret);
191 goto err_fini_utils;
192 }
193
194 return 0;
195
196err_fini_utils:
197 tegra_asoc_utils_fini(&trimslice->util_data);
198err_free_trimslice:
199 kfree(trimslice);
200 return ret;
201}
202
203static int __devexit tegra_snd_trimslice_remove(struct platform_device *pdev)
204{
205 struct snd_soc_card *card = platform_get_drvdata(pdev);
206 struct tegra_trimslice *trimslice = snd_soc_card_get_drvdata(card);
207
208 snd_soc_unregister_card(card);
209
210 tegra_asoc_utils_fini(&trimslice->util_data);
211
212 kfree(trimslice);
213
214 return 0;
215}
216
217static struct platform_driver tegra_snd_trimslice_driver = {
218 .driver = {
219 .name = DRV_NAME,
220 .owner = THIS_MODULE,
221 },
222 .probe = tegra_snd_trimslice_probe,
223 .remove = __devexit_p(tegra_snd_trimslice_remove),
224};
225
226static int __init snd_tegra_trimslice_init(void)
227{
228 return platform_driver_register(&tegra_snd_trimslice_driver);
229}
230module_init(snd_tegra_trimslice_init);
231
232static void __exit snd_tegra_trimslice_exit(void)
233{
234 platform_driver_unregister(&tegra_snd_trimslice_driver);
235}
236module_exit(snd_tegra_trimslice_exit);
237
238MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
239MODULE_DESCRIPTION("Trimslice machine ASoC driver");
240MODULE_LICENSE("GPL");
241MODULE_ALIAS("platform:" DRV_NAME);