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Sudeep Holla
e659fc8e53
Move the FF-A core bring-up and teardown paths into platform driver probe and remove callbacks, and register a synthetic arm-ffa platform device to bind the driver. This makes the FF-A core lifetime follow the driver model while keeping the device creation internal to the FF-A core. Use normal platform driver registration so the probe path has standard driver-core semantics. The synthetic platform device is a temporary bridge until ACPI and devicetree describe the FF-A core device or object. Once those firmware description paths are defined, the internal platform device creation can be dropped and the driver can bind to the firmware-described device directly. Since the transport selection now happens from the platform probe path, drop the __init annotation from ffa_transport_init(). Reviewed-by: Yeoreum Yun <yeoreum.yun@arm.com> Link: https://patch.msgid.link/20260508-b4-ffa_plat_dev-v1-2-c5a30f8cf7b8@kernel.org Signed-off-by: Sudeep Holla <sudeep.holla@kernel.org>
30 lines
637 B
C
30 lines
637 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2021 ARM Ltd.
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*/
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#ifndef _FFA_COMMON_H
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#define _FFA_COMMON_H
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#include <linux/arm_ffa.h>
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#include <linux/arm-smccc.h>
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#include <linux/err.h>
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typedef struct arm_smccc_1_2_regs ffa_value_t;
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typedef void (ffa_fn)(ffa_value_t, ffa_value_t *);
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bool ffa_device_is_valid(struct ffa_device *ffa_dev);
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void ffa_device_match_uuid(struct ffa_device *ffa_dev, const uuid_t *uuid);
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#ifdef CONFIG_ARM_FFA_SMCCC
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int ffa_transport_init(ffa_fn **invoke_ffa_fn);
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#else
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static inline int ffa_transport_init(ffa_fn **invoke_ffa_fn)
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{
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return -EOPNOTSUPP;
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}
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#endif
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#endif /* _FFA_COMMON_H */
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