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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/codecs/lpass-macro-common.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.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/codecs/lpass-macro-common.c')
-rw-r--r-- | sound/soc/codecs/lpass-macro-common.c | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sound/soc/codecs/lpass-macro-common.c b/sound/soc/codecs/lpass-macro-common.c new file mode 100644 index 000000000..1b9082d23 --- /dev/null +++ b/sound/soc/codecs/lpass-macro-common.c @@ -0,0 +1,70 @@ +// 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_platform.h> +#include <linux/platform_device.h> +#include <linux/pm_domain.h> +#include <linux/pm_runtime.h> + +#include "lpass-macro-common.h" + +struct lpass_macro *lpass_macro_pds_init(struct device *dev) +{ + struct lpass_macro *l_pds; + int ret; + + if (!of_find_property(dev->of_node, "power-domains", NULL)) + 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); + +MODULE_DESCRIPTION("Common macro driver"); +MODULE_LICENSE("GPL"); |