1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Copyright (C) ST-Ericsson SA 2012 |
4 | * |
5 | * Author: Ola Lilja (ola.o.lilja@stericsson.com) |
6 | * for ST-Ericsson. |
7 | */ |
8 | |
9 | #include <asm/mach-types.h> |
10 | |
11 | #include <linux/module.h> |
12 | #include <linux/io.h> |
13 | #include <linux/spi/spi.h> |
14 | #include <linux/of.h> |
15 | |
16 | #include <sound/soc.h> |
17 | #include <sound/initval.h> |
18 | |
19 | #include "ux500_pcm.h" |
20 | #include "ux500_msp_dai.h" |
21 | |
22 | #include "mop500_ab8500.h" |
23 | |
24 | /* Define the whole MOP500 soundcard, linking platform to the codec-drivers */ |
25 | SND_SOC_DAILINK_DEFS(link1, |
26 | DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.1" )), |
27 | DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0" , "ab8500-codec-dai.0" )), |
28 | DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.1" ))); |
29 | |
30 | SND_SOC_DAILINK_DEFS(link2, |
31 | DAILINK_COMP_ARRAY(COMP_CPU("ux500-msp-i2s.3" )), |
32 | DAILINK_COMP_ARRAY(COMP_CODEC("ab8500-codec.0" , "ab8500-codec-dai.1" )), |
33 | DAILINK_COMP_ARRAY(COMP_PLATFORM("ux500-msp-i2s.3" ))); |
34 | |
35 | static struct snd_soc_dai_link mop500_dai_links[] = { |
36 | { |
37 | .name = "ab8500_0" , |
38 | .stream_name = "ab8500_0" , |
39 | .init = mop500_ab8500_machine_init, |
40 | .ops = mop500_ab8500_ops, |
41 | SND_SOC_DAILINK_REG(link1), |
42 | }, |
43 | { |
44 | .name = "ab8500_1" , |
45 | .stream_name = "ab8500_1" , |
46 | .init = NULL, |
47 | .ops = mop500_ab8500_ops, |
48 | SND_SOC_DAILINK_REG(link2), |
49 | }, |
50 | }; |
51 | |
52 | static struct snd_soc_card mop500_card = { |
53 | .name = "MOP500-card" , |
54 | .owner = THIS_MODULE, |
55 | .probe = NULL, |
56 | .dai_link = mop500_dai_links, |
57 | .num_links = ARRAY_SIZE(mop500_dai_links), |
58 | }; |
59 | |
60 | static void mop500_of_node_put(void) |
61 | { |
62 | int i; |
63 | |
64 | for (i = 0; i < 2; i++) |
65 | of_node_put(node: mop500_dai_links[i].cpus->of_node); |
66 | |
67 | /* Both links use the same codec, which is refcounted only once */ |
68 | of_node_put(node: mop500_dai_links[0].codecs->of_node); |
69 | } |
70 | |
71 | static int mop500_of_probe(struct platform_device *pdev, |
72 | struct device_node *np) |
73 | { |
74 | struct device_node *codec_np, *msp_np[2]; |
75 | int i; |
76 | |
77 | msp_np[0] = of_parse_phandle(np, phandle_name: "stericsson,cpu-dai" , index: 0); |
78 | msp_np[1] = of_parse_phandle(np, phandle_name: "stericsson,cpu-dai" , index: 1); |
79 | codec_np = of_parse_phandle(np, phandle_name: "stericsson,audio-codec" , index: 0); |
80 | |
81 | if (!(msp_np[0] && msp_np[1] && codec_np)) { |
82 | dev_err(&pdev->dev, "Phandle missing or invalid\n" ); |
83 | for (i = 0; i < 2; i++) |
84 | of_node_put(node: msp_np[i]); |
85 | of_node_put(node: codec_np); |
86 | return -EINVAL; |
87 | } |
88 | |
89 | for (i = 0; i < 2; i++) { |
90 | mop500_dai_links[i].cpus->of_node = msp_np[i]; |
91 | mop500_dai_links[i].cpus->dai_name = NULL; |
92 | mop500_dai_links[i].platforms->of_node = msp_np[i]; |
93 | mop500_dai_links[i].platforms->name = NULL; |
94 | mop500_dai_links[i].codecs->of_node = codec_np; |
95 | mop500_dai_links[i].codecs->name = NULL; |
96 | } |
97 | |
98 | snd_soc_of_parse_card_name(card: &mop500_card, propname: "stericsson,card-name" ); |
99 | |
100 | return 0; |
101 | } |
102 | |
103 | static int mop500_probe(struct platform_device *pdev) |
104 | { |
105 | struct device_node *np = pdev->dev.of_node; |
106 | int ret; |
107 | |
108 | dev_dbg(&pdev->dev, "%s: Enter.\n" , __func__); |
109 | |
110 | mop500_card.dev = &pdev->dev; |
111 | |
112 | ret = mop500_of_probe(pdev, np); |
113 | if (ret) |
114 | return ret; |
115 | |
116 | dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n" , |
117 | __func__, mop500_card.name); |
118 | |
119 | snd_soc_card_set_drvdata(card: &mop500_card, NULL); |
120 | |
121 | dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n" , |
122 | __func__, mop500_card.name, mop500_card.num_links); |
123 | dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n" , |
124 | __func__, mop500_card.name, mop500_card.dai_link[0].name); |
125 | dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n" , |
126 | __func__, mop500_card.name, |
127 | mop500_card.dai_link[0].stream_name); |
128 | |
129 | ret = snd_soc_register_card(card: &mop500_card); |
130 | if (ret) |
131 | dev_err(&pdev->dev, |
132 | "Error: snd_soc_register_card failed (%d)!\n" , ret); |
133 | |
134 | return ret; |
135 | } |
136 | |
137 | static void mop500_remove(struct platform_device *pdev) |
138 | { |
139 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
140 | |
141 | pr_debug("%s: Enter.\n" , __func__); |
142 | |
143 | snd_soc_unregister_card(card); |
144 | mop500_ab8500_remove(card); |
145 | mop500_of_node_put(); |
146 | } |
147 | |
148 | static const struct of_device_id snd_soc_mop500_match[] = { |
149 | { .compatible = "stericsson,snd-soc-mop500" , }, |
150 | {}, |
151 | }; |
152 | MODULE_DEVICE_TABLE(of, snd_soc_mop500_match); |
153 | |
154 | static struct platform_driver snd_soc_mop500_driver = { |
155 | .driver = { |
156 | .name = "snd-soc-mop500" , |
157 | .of_match_table = snd_soc_mop500_match, |
158 | }, |
159 | .probe = mop500_probe, |
160 | .remove_new = mop500_remove, |
161 | }; |
162 | |
163 | module_platform_driver(snd_soc_mop500_driver); |
164 | |
165 | MODULE_LICENSE("GPL v2" ); |
166 | MODULE_DESCRIPTION("ASoC MOP500 board driver" ); |
167 | MODULE_AUTHOR("Ola Lilja" ); |
168 | |