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// SPDX-License-Identifier: GPL-2.0-only
// Copyright (c) 2022, The Linux Foundation. All rights reserved.
#include <linux/export.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/pm_runtime.h>
#include "lpass-macro-common.h"
static DEFINE_MUTEX(lpass_codec_mutex);
static enum lpass_codec_version lpass_codec_version;
struct lpass_macro *lpass_macro_pds_init(struct device *dev)
{
struct lpass_macro *l_pds;
int ret;
if (!of_property_present(dev->of_node, "power-domains"))
return NULL;
l_pds = devm_kzalloc(dev, sizeof(*l_pds), GFP_KERNEL);
if (!l_pds)
return ERR_PTR(-ENOMEM);
l_pds->macro_pd = dev_pm_domain_attach_by_name(dev, "macro");
if (IS_ERR_OR_NULL(l_pds->macro_pd)) {
ret = l_pds->macro_pd ? PTR_ERR(l_pds->macro_pd) : -ENODATA;
goto macro_err;
}
ret = pm_runtime_resume_and_get(l_pds->macro_pd);
if (ret < 0)
goto macro_sync_err;
l_pds->dcodec_pd = dev_pm_domain_attach_by_name(dev, "dcodec");
if (IS_ERR_OR_NULL(l_pds->dcodec_pd)) {
ret = l_pds->dcodec_pd ? PTR_ERR(l_pds->dcodec_pd) : -ENODATA;
goto dcodec_err;
}
ret = pm_runtime_resume_and_get(l_pds->dcodec_pd);
if (ret < 0)
goto dcodec_sync_err;
return l_pds;
dcodec_sync_err:
dev_pm_domain_detach(l_pds->dcodec_pd, false);
dcodec_err:
pm_runtime_put(l_pds->macro_pd);
macro_sync_err:
dev_pm_domain_detach(l_pds->macro_pd, false);
macro_err:
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(lpass_macro_pds_init);
void lpass_macro_pds_exit(struct lpass_macro *pds)
{
if (pds) {
pm_runtime_put(pds->macro_pd);
dev_pm_domain_detach(pds->macro_pd, false);
pm_runtime_put(pds->dcodec_pd);
dev_pm_domain_detach(pds->dcodec_pd, false);
}
}
EXPORT_SYMBOL_GPL(lpass_macro_pds_exit);
void lpass_macro_set_codec_version(enum lpass_codec_version version)
{
mutex_lock(&lpass_codec_mutex);
lpass_codec_version = version;
mutex_unlock(&lpass_codec_mutex);
}
EXPORT_SYMBOL_GPL(lpass_macro_set_codec_version);
enum lpass_codec_version lpass_macro_get_codec_version(void)
{
enum lpass_codec_version ver;
mutex_lock(&lpass_codec_mutex);
ver = lpass_codec_version;
mutex_unlock(&lpass_codec_mutex);
return ver;
}
EXPORT_SYMBOL_GPL(lpass_macro_get_codec_version);
MODULE_DESCRIPTION("Common macro driver");
MODULE_LICENSE("GPL");
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