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1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | // Copyright (c) 2020 Intel Corporation | |
3 | // | |
4 | // sof_sdw_max98373 - Helpers to handle 2x MAX98373 | |
5 | // codec devices from generic machine driver | |
6 | ||
7 | #include <linux/device.h> | |
8 | #include <linux/errno.h> | |
3f2c6564 | 9 | #include <sound/control.h> |
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10 | #include <sound/soc.h> |
11 | #include <sound/soc-acpi.h> | |
3f2c6564 | 12 | #include <sound/soc-dapm.h> |
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13 | #include "sof_sdw_common.h" |
14 | #include "sof_maxim_common.h" | |
15 | ||
16 | static const struct snd_soc_dapm_widget mx8373_widgets[] = { | |
17 | SND_SOC_DAPM_SPK("Left Spk", NULL), | |
18 | SND_SOC_DAPM_SPK("Right Spk", NULL), | |
19 | }; | |
20 | ||
21 | static const struct snd_kcontrol_new mx8373_controls[] = { | |
22 | SOC_DAPM_PIN_SWITCH("Left Spk"), | |
23 | SOC_DAPM_PIN_SWITCH("Right Spk"), | |
24 | }; | |
25 | ||
26 | static int spk_init(struct snd_soc_pcm_runtime *rtd) | |
27 | { | |
28 | struct snd_soc_card *card = rtd->card; | |
29 | int ret; | |
30 | ||
31 | card->components = devm_kasprintf(card->dev, GFP_KERNEL, | |
32 | "%s spk:mx8373", | |
33 | card->components); | |
34 | if (!card->components) | |
35 | return -ENOMEM; | |
36 | ||
37 | ret = snd_soc_add_card_controls(card, mx8373_controls, | |
38 | ARRAY_SIZE(mx8373_controls)); | |
39 | if (ret) { | |
40 | dev_err(card->dev, "mx8373 ctrls addition failed: %d\n", ret); | |
41 | return ret; | |
42 | } | |
43 | ||
44 | ret = snd_soc_dapm_new_controls(&card->dapm, mx8373_widgets, | |
45 | ARRAY_SIZE(mx8373_widgets)); | |
46 | if (ret) { | |
47 | dev_err(card->dev, "mx8373 widgets addition failed: %d\n", ret); | |
48 | return ret; | |
49 | } | |
50 | ||
51 | ret = snd_soc_dapm_add_routes(&card->dapm, max_98373_dapm_routes, 2); | |
52 | if (ret) | |
53 | dev_err(rtd->dev, "failed to add first SPK map: %d\n", ret); | |
54 | ||
55 | return ret; | |
56 | } | |
57 | ||
33c85168 | 58 | static int mx8373_enable_spk_pin(struct snd_pcm_substream *substream, bool enable) |
7cc3b56f | 59 | { |
33c85168 RW |
60 | struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); |
61 | struct snd_soc_dai *codec_dai; | |
62 | struct snd_soc_dai *cpu_dai; | |
7cc3b56f | 63 | int ret; |
33c85168 | 64 | int j; |
7cc3b56f | 65 | |
33c85168 RW |
66 | /* set spk pin by playback only */ |
67 | if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) | |
68 | return 0; | |
69 | ||
70 | cpu_dai = asoc_rtd_to_cpu(rtd, 0); | |
71 | for_each_rtd_codec_dais(rtd, j, codec_dai) { | |
72 | struct snd_soc_dapm_context *dapm = | |
73 | snd_soc_component_get_dapm(cpu_dai->component); | |
74 | char pin_name[16]; | |
75 | ||
76 | snprintf(pin_name, ARRAY_SIZE(pin_name), "%s Spk", | |
77 | codec_dai->component->name_prefix); | |
78 | ||
79 | if (enable) | |
80 | ret = snd_soc_dapm_enable_pin(dapm, pin_name); | |
81 | else | |
82 | ret = snd_soc_dapm_disable_pin(dapm, pin_name); | |
83 | ||
84 | if (!ret) | |
85 | snd_soc_dapm_sync(dapm); | |
7cc3b56f RW |
86 | } |
87 | ||
33c85168 RW |
88 | return 0; |
89 | } | |
90 | ||
91 | static int mx8373_sdw_prepare(struct snd_pcm_substream *substream) | |
92 | { | |
d4321277 | 93 | int ret; |
33c85168 RW |
94 | |
95 | /* according to soc_pcm_prepare dai link prepare is called first */ | |
96 | ret = sdw_prepare(substream); | |
97 | if (ret < 0) | |
98 | return ret; | |
99 | ||
100 | return mx8373_enable_spk_pin(substream, true); | |
101 | } | |
102 | ||
103 | static int mx8373_sdw_hw_free(struct snd_pcm_substream *substream) | |
104 | { | |
d4321277 | 105 | int ret; |
33c85168 RW |
106 | |
107 | /* according to soc_pcm_hw_free dai link free is called first */ | |
108 | ret = sdw_hw_free(substream); | |
109 | if (ret < 0) | |
110 | return ret; | |
111 | ||
112 | return mx8373_enable_spk_pin(substream, false); | |
7cc3b56f RW |
113 | } |
114 | ||
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115 | static const struct snd_soc_ops max_98373_sdw_ops = { |
116 | .startup = sdw_startup, | |
33c85168 RW |
117 | .prepare = mx8373_sdw_prepare, |
118 | .trigger = sdw_trigger, | |
119 | .hw_free = mx8373_sdw_hw_free, | |
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120 | .shutdown = sdw_shutdown, |
121 | }; | |
122 | ||
e9fcbaff YZ |
123 | static int mx8373_sdw_late_probe(struct snd_soc_card *card) |
124 | { | |
125 | struct snd_soc_dapm_context *dapm = &card->dapm; | |
126 | ||
127 | /* Disable Left and Right Spk pin after boot */ | |
128 | snd_soc_dapm_disable_pin(dapm, "Left Spk"); | |
129 | snd_soc_dapm_disable_pin(dapm, "Right Spk"); | |
130 | return snd_soc_dapm_sync(dapm); | |
131 | } | |
132 | ||
cdf99c9a PLB |
133 | int sof_sdw_mx8373_init(struct snd_soc_card *card, |
134 | const struct snd_soc_acpi_link_adr *link, | |
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135 | struct snd_soc_dai_link *dai_links, |
136 | struct sof_sdw_codec_info *info, | |
137 | bool playback) | |
138 | { | |
139 | info->amp_num++; | |
140 | if (info->amp_num == 2) | |
141 | dai_links->init = spk_init; | |
142 | ||
e9fcbaff | 143 | info->codec_card_late_probe = mx8373_sdw_late_probe; |
be3afa12 | 144 | |
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145 | dai_links->ops = &max_98373_sdw_ops; |
146 | ||
147 | return 0; | |
148 | } |