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c448303e SG |
1 | /* |
2 | * Copyright 2012 Freescale Semiconductor, Inc. | |
3 | * Copyright 2012 Linaro Ltd. | |
4 | * | |
5 | * The code contained herein is licensed under the GNU General Public | |
6 | * License. You may obtain a copy of the GNU General Public License | |
7 | * Version 2 or later at the following locations: | |
8 | * | |
9 | * http://www.opensource.org/licenses/gpl-license.html | |
10 | * http://www.gnu.org/copyleft/gpl.html | |
11 | */ | |
12 | ||
13 | #include <linux/module.h> | |
14 | #include <linux/of.h> | |
15 | #include <linux/of_platform.h> | |
687b81d0 | 16 | #include <linux/i2c.h> |
81e8e492 | 17 | #include <linux/clk.h> |
c448303e SG |
18 | #include <sound/soc.h> |
19 | ||
20 | #include "../codecs/sgtl5000.h" | |
21 | #include "imx-audmux.h" | |
22 | ||
23 | #define DAI_NAME_SIZE 32 | |
24 | ||
25 | struct imx_sgtl5000_data { | |
26 | struct snd_soc_dai_link dai; | |
27 | struct snd_soc_card card; | |
28 | char codec_dai_name[DAI_NAME_SIZE]; | |
29 | char platform_name[DAI_NAME_SIZE]; | |
81e8e492 | 30 | struct clk *codec_clk; |
c448303e SG |
31 | unsigned int clk_frequency; |
32 | }; | |
33 | ||
34 | static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd) | |
35 | { | |
47cf84e1 | 36 | struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card); |
c448303e SG |
37 | struct device *dev = rtd->card->dev; |
38 | int ret; | |
39 | ||
40 | ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK, | |
41 | data->clk_frequency, SND_SOC_CLOCK_IN); | |
42 | if (ret) { | |
43 | dev_err(dev, "could not set codec driver clock params\n"); | |
44 | return ret; | |
45 | } | |
46 | ||
47 | return 0; | |
48 | } | |
49 | ||
172b4c5c SG |
50 | static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = { |
51 | SND_SOC_DAPM_MIC("Mic Jack", NULL), | |
52 | SND_SOC_DAPM_LINE("Line In Jack", NULL), | |
53 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
54 | SND_SOC_DAPM_SPK("Line Out Jack", NULL), | |
55 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
56 | }; | |
57 | ||
a0a3d518 | 58 | static int imx_sgtl5000_probe(struct platform_device *pdev) |
c448303e SG |
59 | { |
60 | struct device_node *np = pdev->dev.of_node; | |
61 | struct device_node *ssi_np, *codec_np; | |
62 | struct platform_device *ssi_pdev; | |
81e8e492 | 63 | struct i2c_client *codec_dev; |
50d4a790 | 64 | struct imx_sgtl5000_data *data = NULL; |
c448303e SG |
65 | int int_port, ext_port; |
66 | int ret; | |
67 | ||
68 | ret = of_property_read_u32(np, "mux-int-port", &int_port); | |
69 | if (ret) { | |
70 | dev_err(&pdev->dev, "mux-int-port missing or invalid\n"); | |
71 | return ret; | |
72 | } | |
73 | ret = of_property_read_u32(np, "mux-ext-port", &ext_port); | |
74 | if (ret) { | |
75 | dev_err(&pdev->dev, "mux-ext-port missing or invalid\n"); | |
76 | return ret; | |
77 | } | |
78 | ||
79 | /* | |
80 | * The port numbering in the hardware manual starts at 1, while | |
81 | * the audmux API expects it starts at 0. | |
82 | */ | |
83 | int_port--; | |
84 | ext_port--; | |
85 | ret = imx_audmux_v2_configure_port(int_port, | |
86 | IMX_AUDMUX_V2_PTCR_SYN | | |
87 | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | | |
88 | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | | |
89 | IMX_AUDMUX_V2_PTCR_TFSDIR | | |
90 | IMX_AUDMUX_V2_PTCR_TCLKDIR, | |
91 | IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); | |
92 | if (ret) { | |
93 | dev_err(&pdev->dev, "audmux internal port setup failed\n"); | |
94 | return ret; | |
95 | } | |
db8b624d | 96 | ret = imx_audmux_v2_configure_port(ext_port, |
ef3207c5 | 97 | IMX_AUDMUX_V2_PTCR_SYN, |
c448303e SG |
98 | IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); |
99 | if (ret) { | |
100 | dev_err(&pdev->dev, "audmux external port setup failed\n"); | |
101 | return ret; | |
102 | } | |
103 | ||
104 | ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); | |
105 | codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); | |
106 | if (!ssi_np || !codec_np) { | |
107 | dev_err(&pdev->dev, "phandle missing or invalid\n"); | |
717071dc RZ |
108 | ret = -EINVAL; |
109 | goto fail; | |
c448303e SG |
110 | } |
111 | ||
112 | ssi_pdev = of_find_device_by_node(ssi_np); | |
113 | if (!ssi_pdev) { | |
114 | dev_err(&pdev->dev, "failed to find SSI platform device\n"); | |
28e5ca73 | 115 | ret = -EPROBE_DEFER; |
717071dc | 116 | goto fail; |
c448303e | 117 | } |
81e8e492 RZ |
118 | codec_dev = of_find_i2c_device_by_node(codec_np); |
119 | if (!codec_dev) { | |
120 | dev_err(&pdev->dev, "failed to find codec platform device\n"); | |
28e5ca73 | 121 | return -EPROBE_DEFER; |
81e8e492 | 122 | } |
c448303e SG |
123 | |
124 | data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); | |
717071dc RZ |
125 | if (!data) { |
126 | ret = -ENOMEM; | |
127 | goto fail; | |
128 | } | |
c448303e | 129 | |
a8b22c1c | 130 | data->codec_clk = clk_get(&codec_dev->dev, NULL); |
f1269ae4 WY |
131 | if (IS_ERR(data->codec_clk)) { |
132 | ret = PTR_ERR(data->codec_clk); | |
9e13f345 | 133 | goto fail; |
f1269ae4 | 134 | } |
9e13f345 FE |
135 | |
136 | data->clk_frequency = clk_get_rate(data->codec_clk); | |
c448303e SG |
137 | |
138 | data->dai.name = "HiFi"; | |
139 | data->dai.stream_name = "HiFi"; | |
140 | data->dai.codec_dai_name = "sgtl5000"; | |
141 | data->dai.codec_of_node = codec_np; | |
fa659d83 | 142 | data->dai.cpu_of_node = ssi_np; |
bd41bc96 | 143 | data->dai.platform_of_node = ssi_np; |
c448303e SG |
144 | data->dai.init = &imx_sgtl5000_dai_init; |
145 | data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | |
146 | SND_SOC_DAIFMT_CBM_CFM; | |
147 | ||
148 | data->card.dev = &pdev->dev; | |
149 | ret = snd_soc_of_parse_card_name(&data->card, "model"); | |
172b4c5c | 150 | if (ret) |
9e13f345 | 151 | goto fail; |
172b4c5c | 152 | ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); |
c448303e | 153 | if (ret) |
9e13f345 | 154 | goto fail; |
c448303e | 155 | data->card.num_links = 1; |
29df4306 | 156 | data->card.owner = THIS_MODULE; |
c448303e | 157 | data->card.dai_link = &data->dai; |
172b4c5c SG |
158 | data->card.dapm_widgets = imx_sgtl5000_dapm_widgets; |
159 | data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets); | |
c448303e | 160 | |
47cf84e1 SG |
161 | platform_set_drvdata(pdev, &data->card); |
162 | snd_soc_card_set_drvdata(&data->card, data); | |
163 | ||
01984a47 | 164 | ret = devm_snd_soc_register_card(&pdev->dev, &data->card); |
c448303e SG |
165 | if (ret) { |
166 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); | |
9e13f345 | 167 | goto fail; |
c448303e SG |
168 | } |
169 | ||
2fc059f2 FE |
170 | of_node_put(ssi_np); |
171 | of_node_put(codec_np); | |
172 | ||
173 | return 0; | |
174 | ||
717071dc | 175 | fail: |
50d4a790 | 176 | if (data && !IS_ERR(data->codec_clk)) |
a8b22c1c | 177 | clk_put(data->codec_clk); |
7e3bc3c1 FE |
178 | of_node_put(ssi_np); |
179 | of_node_put(codec_np); | |
c448303e | 180 | |
717071dc | 181 | return ret; |
c448303e SG |
182 | } |
183 | ||
a0a3d518 | 184 | static int imx_sgtl5000_remove(struct platform_device *pdev) |
c448303e | 185 | { |
47cf84e1 SG |
186 | struct snd_soc_card *card = platform_get_drvdata(pdev); |
187 | struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card); | |
c448303e | 188 | |
a8b22c1c | 189 | clk_put(data->codec_clk); |
c448303e SG |
190 | |
191 | return 0; | |
192 | } | |
193 | ||
194 | static const struct of_device_id imx_sgtl5000_dt_ids[] = { | |
195 | { .compatible = "fsl,imx-audio-sgtl5000", }, | |
196 | { /* sentinel */ } | |
197 | }; | |
198 | MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids); | |
199 | ||
200 | static struct platform_driver imx_sgtl5000_driver = { | |
201 | .driver = { | |
202 | .name = "imx-sgtl5000", | |
1abe729f | 203 | .pm = &snd_soc_pm_ops, |
c448303e SG |
204 | .of_match_table = imx_sgtl5000_dt_ids, |
205 | }, | |
206 | .probe = imx_sgtl5000_probe, | |
4fa8dbc1 | 207 | .remove = imx_sgtl5000_remove, |
c448303e SG |
208 | }; |
209 | module_platform_driver(imx_sgtl5000_driver); | |
210 | ||
211 | MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); | |
212 | MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver"); | |
213 | MODULE_LICENSE("GPL v2"); | |
214 | MODULE_ALIAS("platform:imx-sgtl5000"); |