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