blob: b99e0b5e00e9b98e2151fb6f4780d78467be4000 [file] [log] [blame]
Shawn Guoc4483032012-03-16 16:56:44 +08001/*
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>
Wolfram Sang687b81d2013-07-11 12:56:15 +010016#include <linux/i2c.h>
Richard Zhao81e8e492012-04-27 15:02:57 +080017#include <linux/clk.h>
Shawn Guoc4483032012-03-16 16:56:44 +080018#include <sound/soc.h>
19
20#include "../codecs/sgtl5000.h"
21#include "imx-audmux.h"
22
23#define DAI_NAME_SIZE 32
24
25struct 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];
Richard Zhao81e8e492012-04-27 15:02:57 +080030 struct clk *codec_clk;
Shawn Guoc4483032012-03-16 16:56:44 +080031 unsigned int clk_frequency;
32};
33
34static int imx_sgtl5000_dai_init(struct snd_soc_pcm_runtime *rtd)
35{
Shawn Guo47cf84e2014-02-08 13:20:35 +080036 struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(rtd->card);
Shawn Guoc4483032012-03-16 16:56:44 +080037 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
Shawn Guo172b4c5c2012-03-30 00:13:03 +080050static 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
Bill Pembertona0a3d512012-12-07 09:26:16 -050058static int imx_sgtl5000_probe(struct platform_device *pdev)
Shawn Guoc4483032012-03-16 16:56:44 +080059{
60 struct device_node *np = pdev->dev.of_node;
61 struct device_node *ssi_np, *codec_np;
62 struct platform_device *ssi_pdev;
Richard Zhao81e8e492012-04-27 15:02:57 +080063 struct i2c_client *codec_dev;
Philipp Zabel50d4a792013-09-25 15:22:01 +020064 struct imx_sgtl5000_data *data = NULL;
Shawn Guoc4483032012-03-16 16:56:44 +080065 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 }
Julia Lawalldb8b6242012-08-19 09:02:52 +020096 ret = imx_audmux_v2_configure_port(ext_port,
Hui Wangef3207c2012-07-04 15:38:27 +080097 IMX_AUDMUX_V2_PTCR_SYN,
Shawn Guoc4483032012-03-16 16:56:44 +080098 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");
Richard Zhao717071d2012-04-27 15:02:56 +0800108 ret = -EINVAL;
109 goto fail;
Shawn Guoc4483032012-03-16 16:56:44 +0800110 }
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");
Arnaud Patard (Rtp)28e5ca72013-06-20 23:20:49 +0200115 ret = -EPROBE_DEFER;
Richard Zhao717071d2012-04-27 15:02:56 +0800116 goto fail;
Shawn Guoc4483032012-03-16 16:56:44 +0800117 }
Richard Zhao81e8e492012-04-27 15:02:57 +0800118 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");
Arnaud Patard (Rtp)28e5ca72013-06-20 23:20:49 +0200121 return -EPROBE_DEFER;
Richard Zhao81e8e492012-04-27 15:02:57 +0800122 }
Shawn Guoc4483032012-03-16 16:56:44 +0800123
124 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
Richard Zhao717071d2012-04-27 15:02:56 +0800125 if (!data) {
126 ret = -ENOMEM;
127 goto fail;
128 }
Shawn Guoc4483032012-03-16 16:56:44 +0800129
Philipp Zabela8b22c12013-09-25 15:21:08 +0200130 data->codec_clk = clk_get(&codec_dev->dev, NULL);
Wei Yongjunf1269ae2013-07-16 20:05:07 +0800131 if (IS_ERR(data->codec_clk)) {
132 ret = PTR_ERR(data->codec_clk);
Fabio Estevam9e13f342013-06-09 22:07:46 -0300133 goto fail;
Wei Yongjunf1269ae2013-07-16 20:05:07 +0800134 }
Fabio Estevam9e13f342013-06-09 22:07:46 -0300135
136 data->clk_frequency = clk_get_rate(data->codec_clk);
Shawn Guoc4483032012-03-16 16:56:44 +0800137
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;
Shawn Guofa659d82013-03-25 11:19:12 +0800142 data->dai.cpu_of_node = ssi_np;
Shawn Guobd41bc92013-04-25 11:18:46 +0800143 data->dai.platform_of_node = ssi_np;
Shawn Guoc4483032012-03-16 16:56:44 +0800144 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");
150 if (ret)
Fabio Estevam9e13f342013-06-09 22:07:46 -0300151 goto fail;
Shawn Guo172b4c5c2012-03-30 00:13:03 +0800152 ret = snd_soc_of_parse_audio_routing(&data->card, "audio-routing");
153 if (ret)
Fabio Estevam9e13f342013-06-09 22:07:46 -0300154 goto fail;
Shawn Guoc4483032012-03-16 16:56:44 +0800155 data->card.num_links = 1;
Lothar Waßmann29df43062012-11-22 13:31:08 +0100156 data->card.owner = THIS_MODULE;
Shawn Guoc4483032012-03-16 16:56:44 +0800157 data->card.dai_link = &data->dai;
Shawn Guo172b4c5c2012-03-30 00:13:03 +0800158 data->card.dapm_widgets = imx_sgtl5000_dapm_widgets;
159 data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets);
Shawn Guoc4483032012-03-16 16:56:44 +0800160
Shawn Guo47cf84e2014-02-08 13:20:35 +0800161 platform_set_drvdata(pdev, &data->card);
162 snd_soc_card_set_drvdata(&data->card, data);
163
Sachin Kamat01984a42013-09-17 09:42:46 +0530164 ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
Shawn Guoc4483032012-03-16 16:56:44 +0800165 if (ret) {
166 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
Fabio Estevam9e13f342013-06-09 22:07:46 -0300167 goto fail;
Shawn Guoc4483032012-03-16 16:56:44 +0800168 }
169
Fabio Estevam2fc059f2013-04-24 11:54:43 -0300170 of_node_put(ssi_np);
171 of_node_put(codec_np);
172
173 return 0;
174
Richard Zhao717071d2012-04-27 15:02:56 +0800175fail:
Philipp Zabel50d4a792013-09-25 15:22:01 +0200176 if (data && !IS_ERR(data->codec_clk))
Philipp Zabela8b22c12013-09-25 15:21:08 +0200177 clk_put(data->codec_clk);
Fabio Estevam7e3bc3c2014-10-07 15:13:25 -0300178 of_node_put(ssi_np);
179 of_node_put(codec_np);
Shawn Guoc4483032012-03-16 16:56:44 +0800180
Richard Zhao717071d2012-04-27 15:02:56 +0800181 return ret;
Shawn Guoc4483032012-03-16 16:56:44 +0800182}
183
Bill Pembertona0a3d512012-12-07 09:26:16 -0500184static int imx_sgtl5000_remove(struct platform_device *pdev)
Shawn Guoc4483032012-03-16 16:56:44 +0800185{
Shawn Guo47cf84e2014-02-08 13:20:35 +0800186 struct snd_soc_card *card = platform_get_drvdata(pdev);
187 struct imx_sgtl5000_data *data = snd_soc_card_get_drvdata(card);
Shawn Guoc4483032012-03-16 16:56:44 +0800188
Philipp Zabela8b22c12013-09-25 15:21:08 +0200189 clk_put(data->codec_clk);
Shawn Guoc4483032012-03-16 16:56:44 +0800190
191 return 0;
192}
193
194static const struct of_device_id imx_sgtl5000_dt_ids[] = {
195 { .compatible = "fsl,imx-audio-sgtl5000", },
196 { /* sentinel */ }
197};
198MODULE_DEVICE_TABLE(of, imx_sgtl5000_dt_ids);
199
200static struct platform_driver imx_sgtl5000_driver = {
201 .driver = {
202 .name = "imx-sgtl5000",
Nicolin Chen1abe7292013-10-24 18:15:29 +0800203 .pm = &snd_soc_pm_ops,
Shawn Guoc4483032012-03-16 16:56:44 +0800204 .of_match_table = imx_sgtl5000_dt_ids,
205 },
206 .probe = imx_sgtl5000_probe,
Fabio Estevam4fa8dbc2013-09-30 22:17:37 -0300207 .remove = imx_sgtl5000_remove,
Shawn Guoc4483032012-03-16 16:56:44 +0800208};
209module_platform_driver(imx_sgtl5000_driver);
210
211MODULE_AUTHOR("Shawn Guo <shawn.guo@linaro.org>");
212MODULE_DESCRIPTION("Freescale i.MX SGTL5000 ASoC machine driver");
213MODULE_LICENSE("GPL v2");
214MODULE_ALIAS("platform:imx-sgtl5000");