This patch contains scripts to decrease the time taken for
[kvmfornfv.git] / kernel / sound / soc / samsung / odroidx2_max98090.c
1 /*
2  * Copyright (C) 2014 Samsung Electronics Co., Ltd.
3  *
4  * This program is free software; you can redistribute  it and/or modify it
5  * under  the terms of  the GNU General  Public License as published by the
6  * Free Software Foundation;  either version 2 of the  License, or (at your
7  * option) any later version.
8  */
9
10 #include <linux/of.h>
11 #include <linux/module.h>
12 #include <sound/soc.h>
13 #include <sound/pcm_params.h>
14 #include "i2s.h"
15
16 struct odroidx2_drv_data {
17         const struct snd_soc_dapm_widget *dapm_widgets;
18         unsigned int num_dapm_widgets;
19 };
20
21 /* The I2S CDCLK output clock frequency for the MAX98090 codec */
22 #define MAX98090_MCLK 19200000
23
24 static struct snd_soc_dai_link odroidx2_dai[];
25
26 static int odroidx2_late_probe(struct snd_soc_card *card)
27 {
28         struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
29         struct snd_soc_dai *cpu_dai = card->rtd[0].cpu_dai;
30         int ret;
31
32         ret = snd_soc_dai_set_sysclk(codec_dai, 0, MAX98090_MCLK,
33                                                 SND_SOC_CLOCK_IN);
34
35         if (ret < 0 || of_find_property(odroidx2_dai[0].codec_of_node,
36                                         "clocks", NULL))
37                 return ret;
38
39         /* Set the cpu DAI configuration in order to use CDCLK */
40         return snd_soc_dai_set_sysclk(cpu_dai, SAMSUNG_I2S_CDCLK,
41                                         0, SND_SOC_CLOCK_OUT);
42 }
43
44 static const struct snd_soc_dapm_widget odroidx2_dapm_widgets[] = {
45         SND_SOC_DAPM_HP("Headphone Jack", NULL),
46         SND_SOC_DAPM_MIC("Mic Jack", NULL),
47         SND_SOC_DAPM_MIC("DMIC", NULL),
48 };
49
50 static const struct snd_soc_dapm_widget odroidu3_dapm_widgets[] = {
51         SND_SOC_DAPM_HP("Headphone Jack", NULL),
52         SND_SOC_DAPM_SPK("Speakers", NULL),
53 };
54
55 static struct snd_soc_dai_link odroidx2_dai[] = {
56         {
57                 .name           = "MAX98090",
58                 .stream_name    = "MAX98090 PCM",
59                 .codec_dai_name = "HiFi",
60                 .dai_fmt        = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
61                                   SND_SOC_DAIFMT_CBM_CFM,
62         }
63 };
64
65 static struct snd_soc_card odroidx2 = {
66         .owner                  = THIS_MODULE,
67         .dai_link               = odroidx2_dai,
68         .num_links              = ARRAY_SIZE(odroidx2_dai),
69         .fully_routed           = true,
70         .late_probe             = odroidx2_late_probe,
71 };
72
73 static const struct odroidx2_drv_data odroidx2_drvdata = {
74         .dapm_widgets           = odroidx2_dapm_widgets,
75         .num_dapm_widgets       = ARRAY_SIZE(odroidx2_dapm_widgets),
76 };
77
78 static const struct odroidx2_drv_data odroidu3_drvdata = {
79         .dapm_widgets           = odroidu3_dapm_widgets,
80         .num_dapm_widgets       = ARRAY_SIZE(odroidu3_dapm_widgets),
81 };
82
83 static const struct of_device_id odroidx2_audio_of_match[] = {
84         {
85                 .compatible     = "samsung,odroidx2-audio",
86                 .data           = &odroidx2_drvdata,
87         }, {
88                 .compatible     = "samsung,odroidu3-audio",
89                 .data           = &odroidu3_drvdata,
90         },
91         { },
92 };
93 MODULE_DEVICE_TABLE(of, odroidx2_audio_of_match);
94
95 static int odroidx2_audio_probe(struct platform_device *pdev)
96 {
97         struct device_node *snd_node = pdev->dev.of_node;
98         struct snd_soc_card *card = &odroidx2;
99         struct device_node *i2s_node, *codec_node;
100         struct odroidx2_drv_data *dd;
101         const struct of_device_id *of_id;
102         int ret;
103
104         of_id = of_match_node(odroidx2_audio_of_match, snd_node);
105         dd = (struct odroidx2_drv_data *)of_id->data;
106
107         card->num_dapm_widgets = dd->num_dapm_widgets;
108         card->dapm_widgets = dd->dapm_widgets;
109
110         card->dev = &pdev->dev;
111
112         ret = snd_soc_of_parse_card_name(card, "samsung,model");
113         if (ret < 0)
114                 return ret;
115
116         ret = snd_soc_of_parse_audio_routing(card, "samsung,audio-routing");
117         if (ret < 0)
118                 return ret;
119
120         codec_node = of_parse_phandle(snd_node, "samsung,audio-codec", 0);
121         if (!codec_node) {
122                 dev_err(&pdev->dev,
123                         "Failed parsing samsung,i2s-codec property\n");
124                 return -EINVAL;
125         }
126
127         i2s_node = of_parse_phandle(snd_node, "samsung,i2s-controller", 0);
128         if (!i2s_node) {
129                 dev_err(&pdev->dev,
130                         "Failed parsing samsung,i2s-controller property\n");
131                 ret = -EINVAL;
132                 goto err_put_codec_n;
133         }
134
135         odroidx2_dai[0].codec_of_node = codec_node;
136         odroidx2_dai[0].cpu_of_node = i2s_node;
137         odroidx2_dai[0].platform_of_node = i2s_node;
138
139         ret = snd_soc_register_card(card);
140         if (ret) {
141                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
142                         ret);
143                 goto err_put_i2s_n;
144         }
145         return 0;
146
147 err_put_i2s_n:
148         of_node_put(i2s_node);
149 err_put_codec_n:
150         of_node_put(codec_node);
151         return ret;
152 }
153
154 static int odroidx2_audio_remove(struct platform_device *pdev)
155 {
156         struct snd_soc_card *card = platform_get_drvdata(pdev);
157
158         snd_soc_unregister_card(card);
159
160         of_node_put(odroidx2_dai[0].cpu_of_node);
161         of_node_put(odroidx2_dai[0].codec_of_node);
162
163         return 0;
164 }
165
166 static struct platform_driver odroidx2_audio_driver = {
167         .driver = {
168                 .name           = "odroidx2-audio",
169                 .of_match_table = odroidx2_audio_of_match,
170                 .pm             = &snd_soc_pm_ops,
171         },
172         .probe  = odroidx2_audio_probe,
173         .remove = odroidx2_audio_remove,
174 };
175 module_platform_driver(odroidx2_audio_driver);
176
177 MODULE_AUTHOR("Chen Zhen <zhen1.chen@samsung.com>");
178 MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
179 MODULE_DESCRIPTION("ALSA SoC Odroid X2/U3 Audio Support");
180 MODULE_LICENSE("GPL v2");