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104 lines
2.5 KiB
104 lines
2.5 KiB
// SPDX-License-Identifier: (GPL-2.0-only 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 <[email protected]> |
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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/moduleparam.h> |
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#include <linux/pm_runtime.h> |
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#include <sound/sof.h> |
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#include "sof-of-dev.h" |
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#include "ops.h" |
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static char *fw_path; |
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module_param(fw_path, charp, 0444); |
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MODULE_PARM_DESC(fw_path, "alternate path for SOF firmware."); |
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static char *tplg_path; |
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module_param(tplg_path, charp, 0444); |
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MODULE_PARM_DESC(tplg_path, "alternate path for SOF topology."); |
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const struct dev_pm_ops sof_of_pm = { |
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.prepare = snd_sof_prepare, |
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.complete = snd_sof_complete, |
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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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EXPORT_SYMBOL(sof_of_pm); |
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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_mark_last_busy(dev); |
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pm_runtime_set_active(dev); |
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pm_runtime_enable(dev); |
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} |
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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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struct snd_sof_pdata *sof_pdata; |
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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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if (!desc->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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sof_pdata->desc = desc; |
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sof_pdata->dev = &pdev->dev; |
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sof_pdata->fw_filename = desc->default_fw_filename[SOF_IPC]; |
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if (fw_path) |
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sof_pdata->fw_filename_prefix = fw_path; |
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else |
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sof_pdata->fw_filename_prefix = sof_pdata->desc->default_fw_path[SOF_IPC]; |
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if (tplg_path) |
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sof_pdata->tplg_filename_prefix = tplg_path; |
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else |
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sof_pdata->tplg_filename_prefix = sof_pdata->desc->default_tplg_path[SOF_IPC]; |
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/* set callback to be called on successful device probe to enable runtime_pm */ |
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sof_pdata->sof_probe_complete = sof_of_probe_complete; |
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/* call sof helper for DSP hardware probe */ |
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return snd_sof_device_probe(dev, sof_pdata); |
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} |
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EXPORT_SYMBOL(sof_of_probe); |
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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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EXPORT_SYMBOL(sof_of_remove); |
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void sof_of_shutdown(struct platform_device *pdev) |
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{ |
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snd_sof_device_shutdown(&pdev->dev); |
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} |
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EXPORT_SYMBOL(sof_of_shutdown); |
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MODULE_LICENSE("Dual BSD/GPL");
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