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- // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
- //
- // Copyright 2019 NXP
- //
- // Author: Daniel Baluta <[email protected]>
- //
- #include <linux/firmware.h>
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <linux/pm_runtime.h>
- #include <sound/sof.h>
- #include "sof-of-dev.h"
- #include "ops.h"
- static char *fw_path;
- module_param(fw_path, charp, 0444);
- MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware.");
- static char *tplg_path;
- module_param(tplg_path, charp, 0444);
- MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology.");
- const struct dev_pm_ops sof_of_pm = {
- .prepare = snd_sof_prepare,
- .complete = snd_sof_complete,
- SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
- SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
- NULL)
- };
- EXPORT_SYMBOL(sof_of_pm);
- static void sof_of_probe_complete(struct device *dev)
- {
- /* allow runtime_pm */
- pm_runtime_set_autosuspend_delay(dev, SND_SOF_SUSPEND_DELAY_MS);
- pm_runtime_use_autosuspend(dev);
- pm_runtime_mark_last_busy(dev);
- pm_runtime_set_active(dev);
- pm_runtime_enable(dev);
- }
- int sof_of_probe(struct platform_device *pdev)
- {
- struct device *dev = &pdev->dev;
- const struct sof_dev_desc *desc;
- struct snd_sof_pdata *sof_pdata;
- dev_info(&pdev->dev, "DT DSP detected");
- sof_pdata = devm_kzalloc(dev, sizeof(*sof_pdata), GFP_KERNEL);
- if (!sof_pdata)
- return -ENOMEM;
- desc = device_get_match_data(dev);
- if (!desc)
- return -ENODEV;
- if (!desc->ops) {
- dev_err(dev, "error: no matching DT descriptor ops\n");
- return -ENODEV;
- }
- sof_pdata->desc = desc;
- sof_pdata->dev = &pdev->dev;
- sof_pdata->fw_filename = desc->default_fw_filename[SOF_IPC];
- if (fw_path)
- sof_pdata->fw_filename_prefix = fw_path;
- else
- sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path[SOF_IPC];
- if (tplg_path)
- sof_pdata->tplg_filename_prefix = tplg_path;
- else
- sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path[SOF_IPC];
- /* set callback to be called on successful device probe to enable runtime_pm */
- sof_pdata->sof_probe_complete = sof_of_probe_complete;
- /* call sof helper for DSP hardware probe */
- return snd_sof_device_probe(dev, sof_pdata);
- }
- EXPORT_SYMBOL(sof_of_probe);
- int sof_of_remove(struct platform_device *pdev)
- {
- pm_runtime_disable(&pdev->dev);
- /* call sof helper for DSP hardware remove */
- snd_sof_device_remove(&pdev->dev);
- return 0;
- }
- EXPORT_SYMBOL(sof_of_remove);
- void sof_of_shutdown(struct platform_device *pdev)
- {
- snd_sof_device_shutdown(&pdev->dev);
- }
- EXPORT_SYMBOL(sof_of_shutdown);
- MODULE_LICENSE("Dual BSD/GPL");
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