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/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
  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
  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
 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");