70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
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/*
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* Texas Instruments System Control Interface Protocol
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*
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* Copyright (C) 2015-2016 Texas Instruments Incorporated - http://www.ti.com/
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* Nishanth Menon
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __TISCI_PROTOCOL_H
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#define __TISCI_PROTOCOL_H
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/**
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* struct ti_sci_version_info - version information structure
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* @abi_major: Major ABI version. Change here implies risk of backward
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* compatibility break.
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* @abi_minor: Minor ABI version. Change here implies new feature addition,
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* or compatible change in ABI.
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* @firmware_revision: Firmware revision (not usually used).
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* @firmware_description: Firmware description (not usually used).
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*/
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struct ti_sci_version_info {
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u8 abi_major;
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u8 abi_minor;
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u16 firmware_revision;
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char firmware_description[32];
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};
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/**
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* struct ti_sci_handle - Handle returned to TI SCI clients for usage.
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* @version: structure containing version information
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*/
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struct ti_sci_handle {
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struct ti_sci_version_info version;
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};
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#if IS_ENABLED(CONFIG_TI_SCI_PROTOCOL)
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const struct ti_sci_handle *ti_sci_get_handle(struct device *dev);
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int ti_sci_put_handle(const struct ti_sci_handle *handle);
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const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev);
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#else /* CONFIG_TI_SCI_PROTOCOL */
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static inline const struct ti_sci_handle *ti_sci_get_handle(struct device *dev)
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{
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return ERR_PTR(-EINVAL);
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}
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static inline int ti_sci_put_handle(const struct ti_sci_handle *handle)
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{
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return -EINVAL;
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}
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static inline
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const struct ti_sci_handle *devm_ti_sci_get_handle(struct device *dev)
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{
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return ERR_PTR(-EINVAL);
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}
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#endif /* CONFIG_TI_SCI_PROTOCOL */
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#endif /* __TISCI_PROTOCOL_H */
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