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