Commit | Line | Data |
---|---|---|
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> | |
81e8e492 RZ |
16 | #include <linux/of_i2c.h> |
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 | { | |
36 | struct imx_sgtl5000_data *data = container_of(rtd->card, | |
37 | struct imx_sgtl5000_data, card); | |
38 | struct device *dev = rtd->card->dev; | |
39 | int ret; | |
40 | ||
41 | ret = snd_soc_dai_set_sysclk(rtd->codec_dai, SGTL5000_SYSCLK, | |
42 | data->clk_frequency, SND_SOC_CLOCK_IN); | |
43 | if (ret) { | |
44 | dev_err(dev, "could not set codec driver clock params\n"); | |
45 | return ret; | |
46 | } | |
47 | ||
48 | return 0; | |
49 | } | |
50 | ||
172b4c5c SG |
51 | static const struct snd_soc_dapm_widget imx_sgtl5000_dapm_widgets[] = { |
52 | SND_SOC_DAPM_MIC("Mic Jack", NULL), | |
53 | SND_SOC_DAPM_LINE("Line In Jack", NULL), | |
54 | SND_SOC_DAPM_HP("Headphone Jack", NULL), | |
55 | SND_SOC_DAPM_SPK("Line Out Jack", NULL), | |
56 | SND_SOC_DAPM_SPK("Ext Spk", NULL), | |
57 | }; | |
58 | ||
c448303e SG |
59 | static int __devinit imx_sgtl5000_probe(struct platform_device *pdev) |
60 | { | |
61 | struct device_node *np = pdev->dev.of_node; | |
62 | struct device_node *ssi_np, *codec_np; | |
63 | struct platform_device *ssi_pdev; | |
81e8e492 | 64 | struct i2c_client *codec_dev; |
c448303e SG |
65 | struct imx_sgtl5000_data *data; |
66 | int int_port, ext_port; | |
67 | int ret; | |
68 | ||
69 | ret = of_property_read_u32(np, "mux-int-port", &int_port); | |
70 | if (ret) { | |
71 | dev_err(&pdev->dev, "mux-int-port missing or invalid\n"); | |
72 | return ret; | |
73 | } | |
74 | ret = of_property_read_u32(np, "mux-ext-port", &ext_port); | |
75 | if (ret) { | |
76 | dev_err(&pdev->dev, "mux-ext-port missing or invalid\n"); | |
77 | return ret; | |
78 | } | |
79 | ||
80 | /* | |
81 | * The port numbering in the hardware manual starts at 1, while | |
82 | * the audmux API expects it starts at 0. | |
83 | */ | |
84 | int_port--; | |
85 | ext_port--; | |
86 | ret = imx_audmux_v2_configure_port(int_port, | |
87 | IMX_AUDMUX_V2_PTCR_SYN | | |
88 | IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) | | |
89 | IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) | | |
90 | IMX_AUDMUX_V2_PTCR_TFSDIR | | |
91 | IMX_AUDMUX_V2_PTCR_TCLKDIR, | |
92 | IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port)); | |
93 | if (ret) { | |
94 | dev_err(&pdev->dev, "audmux internal port setup failed\n"); | |
95 | return ret; | |
96 | } | |
db8b624d | 97 | ret = imx_audmux_v2_configure_port(ext_port, |
ef3207c5 | 98 | IMX_AUDMUX_V2_PTCR_SYN, |
c448303e SG |
99 | IMX_AUDMUX_V2_PDCR_RXDSEL(int_port)); |
100 | if (ret) { | |
101 | dev_err(&pdev->dev, "audmux external port setup failed\n"); | |
102 | return ret; | |
103 | } | |
104 | ||
105 | ssi_np = of_parse_phandle(pdev->dev.of_node, "ssi-controller", 0); | |
106 | codec_np = of_parse_phandle(pdev->dev.of_node, "audio-codec", 0); | |
107 | if (!ssi_np || !codec_np) { | |
108 | dev_err(&pdev->dev, "phandle missing or invalid\n"); | |
717071dc RZ |
109 | ret = -EINVAL; |
110 | goto fail; | |
c448303e SG |
111 | } |
112 | ||
113 | ssi_pdev = of_find_device_by_node(ssi_np); | |
114 | if (!ssi_pdev) { | |
115 | dev_err(&pdev->dev, "failed to find SSI platform device\n"); | |
717071dc RZ |
116 | ret = -EINVAL; |
117 | goto fail; | |
c448303e | 118 | } |
81e8e492 RZ |
119 | codec_dev = of_find_i2c_device_by_node(codec_np); |
120 | if (!codec_dev) { | |
121 | dev_err(&pdev->dev, "failed to find codec platform device\n"); | |
122 | return -EINVAL; | |
123 | } | |
c448303e SG |
124 | |
125 | data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); | |
717071dc RZ |
126 | if (!data) { |
127 | ret = -ENOMEM; | |
128 | goto fail; | |
129 | } | |
c448303e | 130 | |
81e8e492 RZ |
131 | data->codec_clk = clk_get(&codec_dev->dev, NULL); |
132 | if (IS_ERR(data->codec_clk)) { | |
133 | /* assuming clock enabled by default */ | |
134 | data->codec_clk = NULL; | |
135 | ret = of_property_read_u32(codec_np, "clock-frequency", | |
136 | &data->clk_frequency); | |
137 | if (ret) { | |
138 | dev_err(&codec_dev->dev, | |
139 | "clock-frequency missing or invalid\n"); | |
140 | goto fail; | |
141 | } | |
142 | } else { | |
143 | data->clk_frequency = clk_get_rate(data->codec_clk); | |
144 | clk_prepare_enable(data->codec_clk); | |
c448303e SG |
145 | } |
146 | ||
147 | data->dai.name = "HiFi"; | |
148 | data->dai.stream_name = "HiFi"; | |
149 | data->dai.codec_dai_name = "sgtl5000"; | |
150 | data->dai.codec_of_node = codec_np; | |
151 | data->dai.cpu_dai_name = dev_name(&ssi_pdev->dev); | |
152 | data->dai.platform_name = "imx-pcm-audio"; | |
153 | data->dai.init = &imx_sgtl5000_dai_init; | |
154 | data->dai.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | | |
155 | SND_SOC_DAIFMT_CBM_CFM; | |
156 | ||
157 | data->card.dev = &pdev->dev; | |
158 | ret = snd_soc_of_parse_card_name(&data->card, "model"); | |
172b4c5c | 159 | if (ret) |
81e8e492 | 160 | goto clk_fail; |
172b4c5c | 161 | ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing"); |
c448303e | 162 | if (ret) |
81e8e492 | 163 | goto clk_fail; |
c448303e | 164 | data->card.num_links = 1; |
29df4306 | 165 | data->card.owner = THIS_MODULE; |
c448303e | 166 | data->card.dai_link = &data->dai; |
172b4c5c SG |
167 | data->card.dapm_widgets = imx_sgtl5000_dapm_widgets; |
168 | data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets); | |
c448303e SG |
169 | |
170 | ret = snd_soc_register_card(&data->card); | |
171 | if (ret) { | |
172 | dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret); | |
81e8e492 | 173 | goto clk_fail; |
c448303e SG |
174 | } |
175 | ||
176 | platform_set_drvdata(pdev, data); | |
81e8e492 RZ |
177 | clk_fail: |
178 | clk_put(data->codec_clk); | |
717071dc RZ |
179 | fail: |
180 | if (ssi_np) | |
181 | of_node_put(ssi_np); | |
182 | if (codec_np) | |
183 | of_node_put(codec_np); | |
c448303e | 184 | |
717071dc | 185 | return ret; |
c448303e SG |
186 | } |
187 | ||
188 | static int __devexit imx_sgtl5000_remove(struct platform_device *pdev) | |
189 | { | |
190 | struct imx_sgtl5000_data *data = platform_get_drvdata(pdev); | |
191 | ||
81e8e492 RZ |
192 | if (data->codec_clk) { |
193 | clk_disable_unprepare(data->codec_clk); | |
194 | clk_put(data->codec_clk); | |
195 | } | |
c448303e SG |
196 | snd_soc_unregister_card(&data->card); |
197 | ||
198 | return 0; | |
199 | } | |
200 | ||
201 | static const struct of_device_id imx_sgtl5000_dt_ids[] = { | |
202 | { .compatible = "fsl,imx-audio-sgtl5000", }, | |
203 | { /* sentinel */ } | |
204 | }; | |
205 | MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids); | |
206 | ||
207 | static struct platform_driver imx_sgtl5000_driver = { | |
208 | .driver = { | |
209 | .name = "imx-sgtl5000", | |
210 | .owner = THIS_MODULE, | |
211 | .of_match_table = imx_sgtl5000_dt_ids, | |
212 | }, | |
213 | .probe = imx_sgtl5000_probe, | |
214 | .remove = __devexit_p(imx_sgtl5000_remove), | |
215 | }; | |
216 | module_platform_driver(imx_sgtl5000_driver); | |
217 | ||
218 | MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>"); | |
219 | MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver"); | |
220 | MODULE_LICENSE("GPL v2"); | |
221 | MODULE_ALIAS("platform:imx-sgtl5000"); |