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3#include "../codecs/wm8994.h"
4#include <sound/pcm_params.h>
5#include <sound/soc.h>
6#include <linux/module.h>
7#include <linux/of.h>
8#include <linux/of_device.h>
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33#define SMDK_WM8994_FREQ 16934000
34
35struct smdk_wm8994_data {
36 int mclk1_rate;
37};
38
39
40static struct smdk_wm8994_data smdk_board_data = {
41 .mclk1_rate = SMDK_WM8994_FREQ,
42};
43
44static int smdk_hw_params(struct snd_pcm_substream *substream,
45 struct snd_pcm_hw_params *params)
46{
47 struct snd_soc_pcm_runtime *rtd = substream->private_data;
48 struct snd_soc_dai *codec_dai = rtd->codec_dai;
49 unsigned int pll_out;
50 int ret;
51
52
53 if (params_width(params) == 24)
54 pll_out = params_rate(params) * 384;
55 else if (params_rate(params) == 8000 || params_rate(params) == 11025)
56 pll_out = params_rate(params) * 512;
57 else
58 pll_out = params_rate(params) * 256;
59
60 ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1, WM8994_FLL_SRC_MCLK1,
61 SMDK_WM8994_FREQ, pll_out);
62 if (ret < 0)
63 return ret;
64
65 ret = snd_soc_dai_set_sysclk(codec_dai, WM8994_SYSCLK_FLL1,
66 pll_out, SND_SOC_CLOCK_IN);
67 if (ret < 0)
68 return ret;
69
70 return 0;
71}
72
73
74
75
76static struct snd_soc_ops smdk_ops = {
77 .hw_params = smdk_hw_params,
78};
79
80static int smdk_wm8994_init_paiftx(struct snd_soc_pcm_runtime *rtd)
81{
82 struct snd_soc_dapm_context *dapm = &rtd->card->dapm;
83
84
85 snd_soc_dapm_nc_pin(dapm, "HPOUT2P");
86 snd_soc_dapm_nc_pin(dapm, "HPOUT2N");
87 snd_soc_dapm_nc_pin(dapm, "SPKOUTLN");
88 snd_soc_dapm_nc_pin(dapm, "SPKOUTLP");
89 snd_soc_dapm_nc_pin(dapm, "SPKOUTRP");
90 snd_soc_dapm_nc_pin(dapm, "SPKOUTRN");
91 snd_soc_dapm_nc_pin(dapm, "LINEOUT1N");
92 snd_soc_dapm_nc_pin(dapm, "LINEOUT1P");
93 snd_soc_dapm_nc_pin(dapm, "LINEOUT2N");
94 snd_soc_dapm_nc_pin(dapm, "LINEOUT2P");
95 snd_soc_dapm_nc_pin(dapm, "IN1LP");
96 snd_soc_dapm_nc_pin(dapm, "IN2LP:VXRN");
97 snd_soc_dapm_nc_pin(dapm, "IN1RP");
98 snd_soc_dapm_nc_pin(dapm, "IN2RP:VXRP");
99
100 return 0;
101}
102
103static struct snd_soc_dai_link smdk_dai[] = {
104 {
105 .name = "WM8994 AIF1",
106 .stream_name = "Pri_Dai",
107 .cpu_dai_name = "samsung-i2s.0",
108 .codec_dai_name = "wm8994-aif1",
109 .platform_name = "samsung-i2s.0",
110 .codec_name = "wm8994-codec",
111 .init = smdk_wm8994_init_paiftx,
112 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
113 SND_SOC_DAIFMT_CBM_CFM,
114 .ops = &smdk_ops,
115 }, {
116 .name = "Sec_FIFO TX",
117 .stream_name = "Sec_Dai",
118 .cpu_dai_name = "samsung-i2s-sec",
119 .codec_dai_name = "wm8994-aif1",
120 .platform_name = "samsung-i2s-sec",
121 .codec_name = "wm8994-codec",
122 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
123 SND_SOC_DAIFMT_CBM_CFM,
124 .ops = &smdk_ops,
125 },
126};
127
128static struct snd_soc_card smdk = {
129 .name = "SMDK-I2S",
130 .owner = THIS_MODULE,
131 .dai_link = smdk_dai,
132 .num_links = ARRAY_SIZE(smdk_dai),
133};
134
135static const struct of_device_id samsung_wm8994_of_match[] = {
136 { .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
137 {},
138};
139MODULE_DEVICE_TABLE(of, samsung_wm8994_of_match);
140
141static int smdk_audio_probe(struct platform_device *pdev)
142{
143 int ret;
144 struct device_node *np = pdev->dev.of_node;
145 struct snd_soc_card *card = &smdk;
146 struct smdk_wm8994_data *board;
147 const struct of_device_id *id;
148
149 card->dev = &pdev->dev;
150
151 board = devm_kzalloc(&pdev->dev, sizeof(*board), GFP_KERNEL);
152 if (!board)
153 return -ENOMEM;
154
155 if (np) {
156 smdk_dai[0].cpu_dai_name = NULL;
157 smdk_dai[0].cpu_of_node = of_parse_phandle(np,
158 "samsung,i2s-controller", 0);
159 if (!smdk_dai[0].cpu_of_node) {
160 dev_err(&pdev->dev,
161 "Property 'samsung,i2s-controller' missing or invalid\n");
162 ret = -EINVAL;
163 }
164
165 smdk_dai[0].platform_name = NULL;
166 smdk_dai[0].platform_of_node = smdk_dai[0].cpu_of_node;
167 }
168
169 id = of_match_device(of_match_ptr(samsung_wm8994_of_match), &pdev->dev);
170 if (id)
171 *board = *((struct smdk_wm8994_data *)id->data);
172
173 platform_set_drvdata(pdev, board);
174
175 ret = devm_snd_soc_register_card(&pdev->dev, card);
176
177 if (ret)
178 dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
179
180 return ret;
181}
182
183static struct platform_driver smdk_audio_driver = {
184 .driver = {
185 .name = "smdk-audio-wm8994",
186 .of_match_table = of_match_ptr(samsung_wm8994_of_match),
187 .pm = &snd_soc_pm_ops,
188 },
189 .probe = smdk_audio_probe,
190};
191
192module_platform_driver(smdk_audio_driver);
193
194MODULE_DESCRIPTION("ALSA SoC SMDK WM8994");
195MODULE_LICENSE("GPL");
196MODULE_ALIAS("platform:smdk-audio-wm8994");
197
