sound/soc/sof/sof-of-dev.c

   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/pm_runtime.h>
  11 #include <sound/sof.h>
  12
  13 #include "ops.h"
  14
  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;
  18
  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,
  27 };
  28
  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",
  34         .ops = &sof_imx8_ops,
  35 };
  36 #endif
  37
  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,
  45 };
  46 #endif
  47
  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,
  53                            NULL)
  54 };
  55
  56 static void sof_of_probe_complete(struct device *dev)
  57 {
  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);
  63
  64         pm_runtime_mark_last_busy(dev);
  65         pm_runtime_put_autosuspend(dev);
  66 }
  67
  68 static int sof_of_probe(struct platform_device *pdev)
  69 {
  70         struct device *dev = &pdev->dev;
  71         const struct sof_dev_desc *desc;
  72         struct snd_sof_pdata *sof_pdata;
  73
  74         dev_info(&pdev->dev, "DT DSP detected");
  75
  76         sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
  77         if (!sof_pdata)
  78                 return -ENOMEM;
  79
  80         desc = device_get_match_data(dev);
  81         if (!desc)
  82                 return -ENODEV;
  83
  84         if (!desc->ops) {
  85                 dev_err(dev, "error: no matching DT descriptor ops\n");
  86                 return -ENODEV;
  87         }
  88
  89         sof_pdata->desc = desc;
  90         sof_pdata->dev = &pdev->dev;
  91         sof_pdata->fw_filename = desc->default_fw_filename;
  92
  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;
  96
  97         /* set callback to be called on successful device probe to enable runtime_pm */
  98         sof_pdata->sof_probe_complete = sof_of_probe_complete;
  99
 100         /* call sof helper for DSP hardware probe */
 101         return snd_sof_device_probe(dev, sof_pdata);
 102 }
 103
 104 static int sof_of_remove(struct platform_device *pdev)
 105 {
 106         pm_runtime_disable(&pdev->dev);
 107
 108         /* call sof helper for DSP hardware remove */
 109         snd_sof_device_remove(&pdev->dev);
 110
 111         return 0;
 112 }
 113
 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},
 118 #endif
 119 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
 120         { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc},
 121 #endif
 122         { }
 123 };
 124 MODULE_DEVICE_TABLE(of, sof_of_ids);
 125
 126 /* DT driver definition */
 127 static struct platform_driver snd_sof_of_driver = {
 128         .probe = sof_of_probe,
 129         .remove = sof_of_remove,
 130         .driver = {
 131                 .name = "sof-audio-of",
 132                 .pm = &sof_of_pm,
 133                 .of_match_table = sof_of_ids,
 134         },
 135 };
 136 module_platform_driver(snd_sof_of_driver);
 137
 138 MODULE_LICENSE("Dual BSD/GPL");