1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
5 // Author: Daniel Baluta <daniel.baluta@nxp.com>
8 #include <linux/firmware.h>
9 #include <linux/module.h>
10 #include <linux/pm_runtime.h>
11 #include <sound/sof.h>
15 extern struct snd_sof_dsp_ops sof_imx8_ops;
16 extern struct snd_sof_dsp_ops sof_imx8x_ops;
17 extern struct snd_sof_dsp_ops sof_imx8m_ops;
19 /* platform specific devices */
20 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
21 static struct sof_dev_desc sof_of_imx8qxp_desc = {
22 .default_fw_path = "imx/sof",
23 .default_tplg_path = "imx/sof-tplg",
24 .default_fw_filename = "sof-imx8x.ri",
25 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
26 .ops = &sof_imx8x_ops,
29 static struct sof_dev_desc sof_of_imx8qm_desc = {
30 .default_fw_path = "imx/sof",
31 .default_tplg_path = "imx/sof-tplg",
32 .default_fw_filename = "sof-imx8.ri",
33 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
38 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
39 static struct sof_dev_desc sof_of_imx8mp_desc = {
40 .default_fw_path = "imx/sof",
41 .default_tplg_path = "imx/sof-tplg",
42 .default_fw_filename = "sof-imx8m.ri",
43 .nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
44 .ops = &sof_imx8m_ops,
48 static const struct dev_pm_ops sof_of_pm = {
49 .prepare = snd_sof_prepare,
50 .complete = snd_sof_complete,
51 SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
52 SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
56 static void sof_of_probe_complete(struct device *dev)
58 /* allow runtime_pm */
59 pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
60 pm_runtime_use_autosuspend(dev);
61 pm_runtime_set_active(dev);
62 pm_runtime_enable(dev);
64 pm_runtime_mark_last_busy(dev);
65 pm_runtime_put_autosuspend(dev);
68 static int sof_of_probe(struct platform_device *pdev)
70 struct device *dev = &pdev->dev;
71 const struct sof_dev_desc *desc;
72 struct snd_sof_pdata *sof_pdata;
74 dev_info(&pdev->dev, "DT DSP detected");
76 sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
80 desc = device_get_match_data(dev);
85 dev_err(dev, "error: no matching DT descriptor ops\n");
89 sof_pdata->desc = desc;
90 sof_pdata->dev = &pdev->dev;
91 sof_pdata->fw_filename = desc->default_fw_filename;
93 /* TODO: read alternate fw and tplg filenames from DT */
94 sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
95 sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
97 /* set callback to be called on successful device probe to enable runtime_pm */
98 sof_pdata->sof_probe_complete = sof_of_probe_complete;
100 /* call sof helper for DSP hardware probe */
101 return snd_sof_device_probe(dev, sof_pdata);
104 static int sof_of_remove(struct platform_device *pdev)
106 pm_runtime_disable(&pdev->dev);
108 /* call sof helper for DSP hardware remove */
109 snd_sof_device_remove(&pdev->dev);
114 static const struct of_device_id sof_of_ids[] = {
115 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
116 { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
117 { .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc},
119 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
120 { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc},
124 MODULE_DEVICE_TABLE(of, sof_of_ids);
126 /* DT driver definition */
127 static struct platform_driver snd_sof_of_driver = {
128 .probe = sof_of_probe,
129 .remove = sof_of_remove,
131 .name = "sof-audio-of",
133 .of_match_table = sof_of_ids,
136 module_platform_driver(snd_sof_of_driver);
138 MODULE_LICENSE("Dual BSD/GPL");