1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * Copyright 2011 Freescale Semiconductor, Inc. |
4 | */ |
5 | |
6 | #include <linux/module.h> |
7 | #include <linux/device.h> |
8 | #include <linux/of.h> |
9 | #include <sound/core.h> |
10 | #include <sound/pcm.h> |
11 | #include <sound/soc.h> |
12 | #include <sound/jack.h> |
13 | #include <sound/soc-dapm.h> |
14 | |
15 | #include "../codecs/sgtl5000.h" |
16 | #include "mxs-saif.h" |
17 | |
18 | static int mxs_sgtl5000_hw_params(struct snd_pcm_substream *substream, |
19 | struct snd_pcm_hw_params *params) |
20 | { |
21 | struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); |
22 | struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0); |
23 | struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0); |
24 | unsigned int rate = params_rate(p: params); |
25 | u32 mclk; |
26 | int ret; |
27 | |
28 | /* sgtl5000 does not support 512*rate when in 96000 fs */ |
29 | switch (rate) { |
30 | case 96000: |
31 | mclk = 256 * rate; |
32 | break; |
33 | default: |
34 | mclk = 512 * rate; |
35 | break; |
36 | } |
37 | |
38 | /* Set SGTL5000's SYSCLK (provided by SAIF MCLK) */ |
39 | ret = snd_soc_dai_set_sysclk(dai: codec_dai, SGTL5000_SYSCLK, freq: mclk, dir: 0); |
40 | if (ret) { |
41 | dev_err(codec_dai->dev, "Failed to set sysclk to %u.%03uMHz\n" , |
42 | mclk / 1000000, mclk / 1000 % 1000); |
43 | return ret; |
44 | } |
45 | |
46 | /* The SAIF MCLK should be the same as SGTL5000_SYSCLK */ |
47 | ret = snd_soc_dai_set_sysclk(dai: cpu_dai, MXS_SAIF_MCLK, freq: mclk, dir: 0); |
48 | if (ret) { |
49 | dev_err(cpu_dai->dev, "Failed to set sysclk to %u.%03uMHz\n" , |
50 | mclk / 1000000, mclk / 1000 % 1000); |
51 | return ret; |
52 | } |
53 | |
54 | return 0; |
55 | } |
56 | |
57 | static const struct snd_soc_ops mxs_sgtl5000_hifi_ops = { |
58 | .hw_params = mxs_sgtl5000_hw_params, |
59 | }; |
60 | |
61 | #define MXS_SGTL5000_DAI_FMT (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | \ |
62 | SND_SOC_DAIFMT_CBS_CFS) |
63 | |
64 | |
65 | SND_SOC_DAILINK_DEFS(hifi_tx, |
66 | DAILINK_COMP_ARRAY(COMP_EMPTY()), |
67 | DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000" )), |
68 | DAILINK_COMP_ARRAY(COMP_EMPTY())); |
69 | |
70 | SND_SOC_DAILINK_DEFS(hifi_rx, |
71 | DAILINK_COMP_ARRAY(COMP_EMPTY()), |
72 | DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "sgtl5000" )), |
73 | DAILINK_COMP_ARRAY(COMP_EMPTY())); |
74 | |
75 | static struct snd_soc_dai_link mxs_sgtl5000_dai[] = { |
76 | { |
77 | .name = "HiFi Tx" , |
78 | .stream_name = "HiFi Playback" , |
79 | .dai_fmt = MXS_SGTL5000_DAI_FMT, |
80 | .ops = &mxs_sgtl5000_hifi_ops, |
81 | .playback_only = true, |
82 | SND_SOC_DAILINK_REG(hifi_tx), |
83 | }, { |
84 | .name = "HiFi Rx" , |
85 | .stream_name = "HiFi Capture" , |
86 | .dai_fmt = MXS_SGTL5000_DAI_FMT, |
87 | .ops = &mxs_sgtl5000_hifi_ops, |
88 | .capture_only = true, |
89 | SND_SOC_DAILINK_REG(hifi_rx), |
90 | }, |
91 | }; |
92 | |
93 | static const struct snd_soc_dapm_widget mxs_sgtl5000_dapm_widgets[] = { |
94 | SND_SOC_DAPM_MIC("Mic Jack" , NULL), |
95 | SND_SOC_DAPM_LINE("Line In Jack" , NULL), |
96 | SND_SOC_DAPM_HP("Headphone Jack" , NULL), |
97 | SND_SOC_DAPM_SPK("Line Out Jack" , NULL), |
98 | SND_SOC_DAPM_SPK("Ext Spk" , NULL), |
99 | }; |
100 | |
101 | static struct snd_soc_card mxs_sgtl5000 = { |
102 | .name = "mxs_sgtl5000" , |
103 | .owner = THIS_MODULE, |
104 | .dai_link = mxs_sgtl5000_dai, |
105 | .num_links = ARRAY_SIZE(mxs_sgtl5000_dai), |
106 | }; |
107 | |
108 | static int mxs_sgtl5000_probe(struct platform_device *pdev) |
109 | { |
110 | struct snd_soc_card *card = &mxs_sgtl5000; |
111 | int ret, i; |
112 | struct device_node *np = pdev->dev.of_node; |
113 | struct device_node *saif_np[2], *codec_np; |
114 | |
115 | saif_np[0] = of_parse_phandle(np, phandle_name: "saif-controllers" , index: 0); |
116 | saif_np[1] = of_parse_phandle(np, phandle_name: "saif-controllers" , index: 1); |
117 | codec_np = of_parse_phandle(np, phandle_name: "audio-codec" , index: 0); |
118 | if (!saif_np[0] || !saif_np[1] || !codec_np) { |
119 | dev_err(&pdev->dev, "phandle missing or invalid\n" ); |
120 | of_node_put(node: codec_np); |
121 | of_node_put(node: saif_np[0]); |
122 | of_node_put(node: saif_np[1]); |
123 | return -EINVAL; |
124 | } |
125 | |
126 | for (i = 0; i < 2; i++) { |
127 | mxs_sgtl5000_dai[i].codecs->name = NULL; |
128 | mxs_sgtl5000_dai[i].codecs->of_node = codec_np; |
129 | mxs_sgtl5000_dai[i].cpus->dai_name = NULL; |
130 | mxs_sgtl5000_dai[i].cpus->of_node = saif_np[i]; |
131 | mxs_sgtl5000_dai[i].platforms->name = NULL; |
132 | mxs_sgtl5000_dai[i].platforms->of_node = saif_np[i]; |
133 | } |
134 | |
135 | of_node_put(node: codec_np); |
136 | of_node_put(node: saif_np[0]); |
137 | of_node_put(node: saif_np[1]); |
138 | |
139 | /* |
140 | * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w). |
141 | * The Sgtl5000 sysclk is derived from saif0 mclk and it's range |
142 | * should be >= 8MHz and <= 27M. |
143 | */ |
144 | ret = mxs_saif_get_mclk(saif_id: 0, mclk: 44100 * 256, rate: 44100); |
145 | if (ret) { |
146 | dev_err(&pdev->dev, "failed to get mclk\n" ); |
147 | return ret; |
148 | } |
149 | |
150 | card->dev = &pdev->dev; |
151 | |
152 | if (of_property_present(np, propname: "audio-routing" )) { |
153 | card->dapm_widgets = mxs_sgtl5000_dapm_widgets; |
154 | card->num_dapm_widgets = ARRAY_SIZE(mxs_sgtl5000_dapm_widgets); |
155 | |
156 | ret = snd_soc_of_parse_audio_routing(card, propname: "audio-routing" ); |
157 | if (ret) { |
158 | dev_err(&pdev->dev, "failed to parse audio-routing (%d)\n" , |
159 | ret); |
160 | return ret; |
161 | } |
162 | } |
163 | |
164 | ret = devm_snd_soc_register_card(dev: &pdev->dev, card); |
165 | if (ret) |
166 | return dev_err_probe(dev: &pdev->dev, err: ret, fmt: "snd_soc_register_card failed\n" ); |
167 | |
168 | return 0; |
169 | } |
170 | |
171 | static void mxs_sgtl5000_remove(struct platform_device *pdev) |
172 | { |
173 | mxs_saif_put_mclk(saif_id: 0); |
174 | } |
175 | |
176 | static const struct of_device_id mxs_sgtl5000_dt_ids[] = { |
177 | { .compatible = "fsl,mxs-audio-sgtl5000" , }, |
178 | { /* sentinel */ } |
179 | }; |
180 | MODULE_DEVICE_TABLE(of, mxs_sgtl5000_dt_ids); |
181 | |
182 | static struct platform_driver mxs_sgtl5000_audio_driver = { |
183 | .driver = { |
184 | .name = "mxs-sgtl5000" , |
185 | .of_match_table = mxs_sgtl5000_dt_ids, |
186 | }, |
187 | .probe = mxs_sgtl5000_probe, |
188 | .remove_new = mxs_sgtl5000_remove, |
189 | }; |
190 | |
191 | module_platform_driver(mxs_sgtl5000_audio_driver); |
192 | |
193 | MODULE_AUTHOR("Freescale Semiconductor, Inc." ); |
194 | MODULE_DESCRIPTION("MXS ALSA SoC Machine driver" ); |
195 | MODULE_LICENSE("GPL" ); |
196 | MODULE_ALIAS("platform:mxs-sgtl5000" ); |
197 | |