diff options
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/ti/ti_sci_protocol.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/include/linux/soc/ti/ti_sci_protocol.h b/include/linux/soc/ti/ti_sci_protocol.h new file mode 100644 index 0000000000..f216bfbcfa --- /dev/null +++ b/include/linux/soc/ti/ti_sci_protocol.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Texas Instruments System Control Interface Protocol + * Based on include/linux/soc/ti/ti_sci_protocol.h from Linux. + * + * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/ + * Nishanth Menon + * Lokesh Vutla <lokeshvutla@ti.com> + */ + +#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; + +/** + * 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_from_sysfw(struct udevice *dev); +const struct ti_sci_handle *ti_sci_get_handle(struct udevice *dev); +const struct ti_sci_handle *ti_sci_get_by_phandle(struct udevice *dev, + const char *property); + +#else /* CONFIG_TI_SCI_PROTOCOL */ + +static inline +const struct ti_sci_handle *ti_sci_get_handle_from_sysfw(struct udevice *dev) +{ + return ERR_PTR(-EINVAL); +} + +static inline const struct ti_sci_handle *ti_sci_get_handle(struct udevice *dev) +{ + return ERR_PTR(-EINVAL); +} + +static inline +const struct ti_sci_handle *ti_sci_get_by_phandle(struct udevice *dev, + const char *property) +{ + return ERR_PTR(-EINVAL); +} +#endif /* CONFIG_TI_SCI_PROTOCOL */ + +#endif /* __TISCI_PROTOCOL_H */ |