LXR linux/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
  15extern struct snd_sof_dsp_ops sof_imx8_ops;
  16extern struct snd_sof_dsp_ops sof_imx8x_ops;
  17extern struct snd_sof_dsp_ops sof_imx8m_ops;
  18
  19/* platform specific devices */
  20#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
  21static 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
  29static 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)
  39static 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
  48static 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
  56static 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
  68static 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
 104static 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
 114static 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};
 124MODULE_DEVICE_TABLE(of, sof_of_ids);
 125
 126/* DT driver definition */
 127static 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};
 136module_platform_driver(snd_sof_of_driver);
 137
 138MODULE_LICENSE("Dual BSD/GPL");
 139