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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /sound/soc/sof/sof-of-dev.c | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'sound/soc/sof/sof-of-dev.c')
-rw-r--r-- | sound/soc/sof/sof-of-dev.c | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-of-dev.c b/sound/soc/sof/sof-of-dev.c new file mode 100644 index 000000000..53faecced --- /dev/null +++ b/sound/soc/sof/sof-of-dev.c @@ -0,0 +1,104 @@ +// 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->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"); |