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Commit | Line | Data |
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09c434b8 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
a195b51b JC |
2 | |
3 | #include <linux/module.h> | |
4 | #include <sound/soc.h> | |
5 | ||
6 | #include <asm/mach-types.h> | |
7 | ||
8 | #include "../codecs/wm8940.h" | |
9 | #include "pxa2xx-i2s.h" | |
a195b51b JC |
10 | |
11 | static int imote2_asoc_hw_params(struct snd_pcm_substream *substream, | |
12 | struct snd_pcm_hw_params *params) | |
13 | { | |
14 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
f0fba2ad LG |
15 | struct snd_soc_dai *codec_dai = rtd->codec_dai; |
16 | struct snd_soc_dai *cpu_dai = rtd->cpu_dai; | |
a195b51b JC |
17 | unsigned int clk = 0; |
18 | int ret; | |
19 | ||
20 | switch (params_rate(params)) { | |
21 | case 8000: | |
22 | case 16000: | |
23 | case 48000: | |
24 | case 96000: | |
25 | clk = 12288000; | |
26 | break; | |
27 | case 11025: | |
28 | case 22050: | |
29 | case 44100: | |
30 | clk = 11289600; | |
31 | break; | |
32 | } | |
33 | ||
a195b51b JC |
34 | ret = snd_soc_dai_set_sysclk(codec_dai, 0, clk, |
35 | SND_SOC_CLOCK_IN); | |
36 | if (ret < 0) | |
37 | return ret; | |
38 | ||
39 | /* set the I2S system clock as input (unused) */ | |
40 | ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, clk, | |
41 | SND_SOC_CLOCK_OUT); | |
42 | ||
43 | return ret; | |
44 | } | |
45 | ||
943b7311 | 46 | static const struct snd_soc_ops imote2_asoc_ops = { |
a195b51b JC |
47 | .hw_params = imote2_asoc_hw_params, |
48 | }; | |
49 | ||
50 | static struct snd_soc_dai_link imote2_dai = { | |
51 | .name = "WM8940", | |
52 | .stream_name = "WM8940", | |
a2a0086d | 53 | .cpu_dai_name = "pxa2xx-i2s", |
f0fba2ad LG |
54 | .codec_dai_name = "wm8940-hifi", |
55 | .platform_name = "pxa-pcm-audio", | |
56 | .codec_name = "wm8940-codec.0-0034", | |
52ec35f6 AL |
57 | .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | |
58 | SND_SOC_DAIFMT_CBS_CFS, | |
a195b51b JC |
59 | .ops = &imote2_asoc_ops, |
60 | }; | |
61 | ||
ac1e8986 | 62 | static struct snd_soc_card imote2 = { |
a195b51b | 63 | .name = "Imote2", |
561c6a17 | 64 | .owner = THIS_MODULE, |
a195b51b JC |
65 | .dai_link = &imote2_dai, |
66 | .num_links = 1, | |
67 | }; | |
68 | ||
570f6fe1 | 69 | static int imote2_probe(struct platform_device *pdev) |
a195b51b | 70 | { |
ac1e8986 | 71 | struct snd_soc_card *card = &imote2; |
a195b51b JC |
72 | int ret; |
73 | ||
ac1e8986 | 74 | card->dev = &pdev->dev; |
a195b51b | 75 | |
2fd7076a | 76 | ret = devm_snd_soc_register_card(&pdev->dev, card); |
a195b51b | 77 | if (ret) |
ac1e8986 AL |
78 | dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", |
79 | ret); | |
a195b51b JC |
80 | return ret; |
81 | } | |
a195b51b | 82 | |
ac1e8986 AL |
83 | static struct platform_driver imote2_driver = { |
84 | .driver = { | |
85 | .name = "imote2-audio", | |
7db1698f | 86 | .pm = &snd_soc_pm_ops, |
ac1e8986 AL |
87 | }, |
88 | .probe = imote2_probe, | |
ac1e8986 AL |
89 | }; |
90 | ||
91 | module_platform_driver(imote2_driver); | |
a195b51b JC |
92 | |
93 | MODULE_AUTHOR("Jonathan Cameron"); | |
94 | MODULE_DESCRIPTION("ALSA SoC Imote 2"); | |
95 | MODULE_LICENSE("GPL"); | |
ac1e8986 | 96 | MODULE_ALIAS("platform:imote2-audio"); |