1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
|
// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// Copyright 2019 NXP
//
// Author: Daniel Baluta <daniel.baluta@nxp.com>
//
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <sound/sof.h>
#include "ops.h"
extern struct snd_sof_dsp_ops sof_imx8_ops;
extern struct snd_sof_dsp_ops sof_imx8x_ops;
extern struct snd_sof_dsp_ops sof_imx8m_ops;
/* platform specific devices */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
static struct sof_dev_desc sof_of_imx8qxp_desc = {
.default_fw_path = "imx/sof",
.default_tplg_path = "imx/sof-tplg",
.default_fw_filename = "sof-imx8x.ri",
.nocodec_fw_filename = "sof-imx8.ri",
.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
.ops = &sof_imx8x_ops,
};
static struct sof_dev_desc sof_of_imx8qm_desc = {
.default_fw_path = "imx/sof",
.default_tplg_path = "imx/sof-tplg",
.default_fw_filename = "sof-imx8.ri",
.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
.ops = &sof_imx8_ops,
};
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
static struct sof_dev_desc sof_of_imx8mp_desc = {
.default_fw_path = "imx/sof",
.default_tplg_path = "imx/sof-tplg",
.default_fw_filename = "sof-imx8m.ri",
.nocodec_fw_filename = "sof-imx8m.ri",
.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
.ops = &sof_imx8m_ops,
};
#endif
static const struct dev_pm_ops sof_of_pm = {
SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
NULL)
};
static void sof_of_probe_complete(struct device *dev)
{
/* allow runtime_pm */
pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
pm_runtime_use_autosuspend(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_mark_last_busy(dev);
pm_runtime_put_autosuspend(dev);
}
int sof_of_parse(struct platform_device *pdev)
{
struct snd_sof_pdata *sof_pdata = platform_get_drvdata(pdev);
struct device_node *np = pdev->dev.of_node;
int ret;
/* firmware-name is optional in DT */
of_property_read_string(np, "firmware-name", &sof_pdata->fw_filename);
ret = of_property_read_string(np, "tplg-name",
&sof_pdata->tplg_filename);
if (ret < 0)
return ret;
ret = of_property_read_string(np, "machine-drv-name",
&sof_pdata->machine_drv_name);
if (ret < 0)
return ret;
return 0;
}
static int sof_of_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct sof_dev_desc *desc;
/*TODO: create a generic snd_soc_xxx_mach */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
struct snd_soc_acpi_mach *mach;
#endif
struct snd_sof_pdata *sof_pdata;
const struct snd_sof_dsp_ops *ops;
int ret;
dev_info(&pdev->dev, "DT DSP detected");
sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
if (!sof_pdata)
return -ENOMEM;
platform_set_drvdata(pdev, sof_pdata);
desc = device_get_match_data(dev);
if (!desc)
return -ENODEV;
/* get ops for platform */
ops = desc->ops;
if (!ops) {
dev_err(dev, "error: no matching DT descriptor ops\n");
return -ENODEV;
}
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
/* force nocodec mode */
dev_warn(dev, "Force to use nocodec mode\n");
mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
if (!mach)
return -ENOMEM;
mach->drv_name = "sof-nocodec";
sof_pdata->fw_filename = desc->nocodec_fw_filename;
sof_pdata->tplg_filename = desc->nocodec_tplg_filename;
ret = sof_nocodec_setup(dev, ops);
if (ret < 0)
return ret;
#endif
/* TODO: replace machine with info from DT */
sof_pdata->machine = NULL;
sof_pdata->desc = desc;
sof_pdata->dev = &pdev->dev;
sof_pdata->platform = dev_name(dev);
/* TODO: read alternate fw and tplg filenames from DT */
sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
ret = sof_of_parse(pdev);
if (ret < 0) {
dev_err(dev, "Could not parse SOF OF DSP node\n");
return ret;
}
/* use default fw filename if none provided in DT */
if (!sof_pdata->fw_filename)
sof_pdata->fw_filename = desc->default_fw_filename;
#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
/* set callback to enable runtime_pm */
sof_pdata->sof_probe_complete = sof_of_probe_complete;
#endif
/* call sof helper for DSP hardware probe */
ret = snd_sof_device_probe(dev, sof_pdata);
if (ret) {
dev_err(dev, "error: failed to probe DSP hardware\n");
return ret;
}
#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
sof_of_probe_complete(dev);
#endif
return ret;
}
static int sof_of_remove(struct platform_device *pdev)
{
pm_runtime_disable(&pdev->dev);
/* call sof helper for DSP hardware remove */
snd_sof_device_remove(&pdev->dev);
return 0;
}
static const struct of_device_id sof_of_ids[] = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
{ .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
{ .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc},
#endif
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
{ .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc},
#endif
{ }
};
MODULE_DEVICE_TABLE(of, sof_of_ids);
/* DT driver definition */
static struct platform_driver snd_sof_of_driver = {
.probe = sof_of_probe,
.remove = sof_of_remove,
.driver = {
.name = "sof-audio-of",
.pm = &sof_of_pm,
.of_match_table = sof_of_ids,
},
};
module_platform_driver(snd_sof_of_driver);
MODULE_LICENSE("Dual BSD/GPL");
|
