1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
2 //
3 // Copyright 2019 NXP
4 //
5 // Author: Daniel Baluta <daniel.baluta@nxp.com>
6 //
7
8 #include <linux/firmware.h>
9 #include <linux/module.h>
10 #include <linux/moduleparam.h>
11 #include <linux/pm_runtime.h>
12 #include <sound/sof.h>
13
14 #include "ops.h"
15 #include "imx/imx-ops.h"
16
17 static char *fw_path;
18 module_param(fw_path, charp, 0444);
19 MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
20
21 static char *tplg_path;
22 module_param(tplg_path, charp, 0444);
23 MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
24
25 /* platform specific devices */
26 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
27 static struct sof_dev_desc sof_of_imx8qxp_desc = {
28 .default_fw_path = "imx/sof",
29 .default_tplg_path = "imx/sof-tplg",
30 .default_fw_filename = "sof-imx8x.ri",
31 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
32 .ops = &sof_imx8x_ops,
33 };
34
35 static struct sof_dev_desc sof_of_imx8qm_desc = {
36 .default_fw_path = "imx/sof",
37 .default_tplg_path = "imx/sof-tplg",
38 .default_fw_filename = "sof-imx8.ri",
39 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
40 .ops = &sof_imx8_ops,
41 };
42 #endif
43
44 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
45 static struct sof_dev_desc sof_of_imx8mp_desc = {
46 .default_fw_path = "imx/sof",
47 .default_tplg_path = "imx/sof-tplg",
48 .default_fw_filename = "sof-imx8m.ri",
49 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
50 .ops = &sof_imx8m_ops,
51 };
52 #endif
53
54 static const struct dev_pm_ops sof_of_pm = {
55 .prepare = snd_sof_prepare,
56 .complete = snd_sof_complete,
57 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
58 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
59 NULL)
60 };
61
sof_of_probe_complete(struct device * dev)62 static void sof_of_probe_complete(struct device *dev)
63 {
64 /* allow runtime_pm */
65 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
66 pm_runtime_use_autosuspend(dev);
67 pm_runtime_set_active(dev);
68 pm_runtime_enable(dev);
69
70 pm_runtime_mark_last_busy(dev);
71 pm_runtime_put_autosuspend(dev);
72 }
73
sof_of_probe(struct platform_device * pdev)74 static int sof_of_probe(struct platform_device *pdev)
75 {
76 struct device *dev = &pdev->dev;
77 const struct sof_dev_desc *desc;
78 struct snd_sof_pdata *sof_pdata;
79
80 dev_info(&pdev->dev, "DT DSP detected");
81
82 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
83 if (!sof_pdata)
84 return -ENOMEM;
85
86 desc = device_get_match_data(dev);
87 if (!desc)
88 return -ENODEV;
89
90 if (!desc->ops) {
91 dev_err(dev, "error: no matching DT descriptor ops\n");
92 return -ENODEV;
93 }
94
95 sof_pdata->desc = desc;
96 sof_pdata->dev = &pdev->dev;
97 sof_pdata->fw_filename = desc->default_fw_filename;
98
99 if (fw_path)
100 sof_pdata->fw_filename_prefix = fw_path;
101 else
102 sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
103
104 if (tplg_path)
105 sof_pdata->tplg_filename_prefix = tplg_path;
106 else
107 sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
108
109 /* set callback to be called on successful device probe to enable runtime_pm */
110 sof_pdata->sof_probe_complete = sof_of_probe_complete;
111
112 /* call sof helper for DSP hardware probe */
113 return snd_sof_device_probe(dev, sof_pdata);
114 }
115
sof_of_remove(struct platform_device * pdev)116 static int sof_of_remove(struct platform_device *pdev)
117 {
118 pm_runtime_disable(&pdev->dev);
119
120 /* call sof helper for DSP hardware remove */
121 snd_sof_device_remove(&pdev->dev);
122
123 return 0;
124 }
125
126 static const struct of_device_id sof_of_ids[] = {
127 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
128 { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
129 { .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc},
130 #endif
131 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
132 { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc},
133 #endif
134 { }
135 };
136 MODULE_DEVICE_TABLE(of, sof_of_ids);
137
138 /* DT driver definition */
139 static struct platform_driver snd_sof_of_driver = {
140 .probe = sof_of_probe,
141 .remove = sof_of_remove,
142 .driver = {
143 .name = "sof-audio-of",
144 .pm = &sof_of_pm,
145 .of_match_table = sof_of_ids,
146 },
147 };
148 module_platform_driver(snd_sof_of_driver);
149
150 MODULE_LICENSE("Dual BSD/GPL");
151