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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// Copyright 2019 NXP
//
// Author: Daniel Baluta <daniel.baluta@nxp.com>
//
#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->ipc_file_profile_base.ipc_type = desc->ipc_default;
sof_pdata->ipc_file_profile_base.fw_path = fw_path;
sof_pdata->ipc_file_profile_base.tplg_path = tplg_path;
/* 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);
void 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);
}
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");
MODULE_DESCRIPTION("SOF support for OF/DT platforms");
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