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         const struct snd_sof_dsp_ops *ops;
  74         int ret;
  75
  76         dev_info(&pdev->dev, "DT DSP detected");
  77
  78         sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
  79         if (!sof_pdata)
  80                 return -ENOMEM;
  81
  82         desc = device_get_match_data(dev);
  83         if (!desc)
  84                 return -ENODEV;
  85
  86         /* get ops for platform */
  87         ops = desc->ops;
  88         if (!ops) {
  89                 dev_err(dev, "error: no matching DT descriptor ops\n");
  90                 return -ENODEV;
  91         }
  92
  93         sof_pdata->desc = desc;
  94         sof_pdata->dev = &pdev->dev;
  95         sof_pdata->fw_filename = desc->default_fw_filename;
  96
  97         /* TODO: read alternate fw and tplg filenames from DT */
  98         sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
  99         sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
 100
 101 #if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
 102         /* set callback to enable runtime_pm */
 103         sof_pdata->sof_probe_complete = sof_of_probe_complete;
 104 #endif
 105          /* call sof helper for DSP hardware probe */
 106         ret = snd_sof_device_probe(dev, sof_pdata);
 107         if (ret) {
 108                 dev_err(dev, "error: failed to probe DSP hardware\n");
 109                 return ret;
 110         }
 111
 112 #if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
 113         sof_of_probe_complete(dev);
 114 #endif
 115
 116         return ret;
 117 }
 118
 119 static int sof_of_remove(struct platform_device *pdev)
 120 {
 121         pm_runtime_disable(&pdev->dev);
 122
 123         /* call sof helper for DSP hardware remove */
 124         snd_sof_device_remove(&pdev->dev);
 125
 126         return 0;
 127 }
 128
 129 static const struct of_device_id sof_of_ids[] = {
 130 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
 131         { .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
 132         { .compatible = "fsl,imx8qm-dsp", .data = &sof_of_imx8qm_desc},
 133 #endif
 134 #if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8M)
 135         { .compatible = "fsl,imx8mp-dsp", .data = &sof_of_imx8mp_desc},
 136 #endif
 137         { }
 138 };
 139 MODULE_DEVICE_TABLE(of, sof_of_ids);
 140
 141 /* DT driver definition */
 142 static struct platform_driver snd_sof_of_driver = {
 143         .probe = sof_of_probe,
 144         .remove = sof_of_remove,
 145         .driver = {
 146                 .name = "sof-audio-of",
 147                 .pm = &sof_of_pm,
 148                 .of_match_table = sof_of_ids,
 149         },
 150 };
 151 module_platform_driver(snd_sof_of_driver);
 152
 153 MODULE_LICENSE("Dual BSD/GPL");