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// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
//
// Copyright 2019 NXP
//
// Author: Daniel Baluta <daniel.baluta@nxp.com>
//
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pm_runtime.h>
#include <sound/sof.h>
#include "ops.h"
extern struct snd_sof_dsp_ops sof_imx8_ops;
/* platform specific devices */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
static struct sof_dev_desc sof_of_imx8qxp_desc = {
.default_fw_path = "imx/sof",
.default_tplg_path = "imx/sof-tplg",
.nocodec_fw_filename = "sof-imx8.ri",
.nocodec_tplg_filename = "sof-imx8-nocodec.tplg",
.ops = &sof_imx8_ops,
};
#endif
static const struct dev_pm_ops sof_of_pm = {
SET_SYSTEM_SLEEP_PM_OPS(snd_sof_suspend, snd_sof_resume)
SET_RUNTIME_PM_OPS(snd_sof_runtime_suspend, snd_sof_runtime_resume,
NULL)
};
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_enable(dev);
}
static int sof_of_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
const struct sof_dev_desc *desc;
/*TODO: create a generic snd_soc_xxx_mach */
struct snd_soc_acpi_mach *mach;
struct snd_sof_pdata *sof_pdata;
const struct snd_sof_dsp_ops *ops;
int ret;
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;
/* get ops for platform */
ops = desc->ops;
if (!ops) {
dev_err(dev, "error: no matching DT descriptor ops\n");
return -ENODEV;
}
#if IS_ENABLED(CONFIG_SND_SOC_SOF_FORCE_NOCODEC_MODE)
/* force nocodec mode */
dev_warn(dev, "Force to use nocodec mode\n");
mach = devm_kzalloc(dev, sizeof(*mach), GFP_KERNEL);
if (!mach)
return -ENOMEM;
ret = sof_nocodec_setup(dev, sof_pdata, mach, desc, ops);
if (ret < 0)
return ret;
#else
/* TODO: implement case where we actually have a codec */
return -ENODEV;
#endif
if (mach)
mach->mach_params.platform = dev_name(dev);
sof_pdata->machine = mach;
sof_pdata->desc = desc;
sof_pdata->dev = &pdev->dev;
sof_pdata->platform = dev_name(dev);
/* TODO: read alternate fw and tplg filenames from DT */
sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path;
sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path;
#if IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
/* set callback to enable runtime_pm */
sof_pdata->sof_probe_complete = sof_of_probe_complete;
#endif
/* call sof helper for DSP hardware probe */
ret = snd_sof_device_probe(dev, sof_pdata);
if (ret) {
dev_err(dev, "error: failed to probe DSP hardware\n");
return ret;
}
#if !IS_ENABLED(CONFIG_SND_SOC_SOF_PROBE_WORK_QUEUE)
sof_of_probe_complete(dev);
#endif
return ret;
}
static 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;
}
static const struct of_device_id sof_of_ids[] = {
#if IS_ENABLED(CONFIG_SND_SOC_SOF_IMX8)
{ .compatible = "fsl,imx8qxp-dsp", .data = &sof_of_imx8qxp_desc},
#endif
{ }
};
MODULE_DEVICE_TABLE(of, sof_of_ids);
/* DT driver definition */
static struct platform_driver snd_sof_of_driver = {
.probe = sof_of_probe,
.remove = sof_of_remove,
.driver = {
.name = "sof-audio-of",
.pm = &sof_of_pm,
.of_match_table = sof_of_ids,
},
};
module_platform_driver(snd_sof_of_driver);
MODULE_LICENSE("Dual BSD/GPL");
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