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This driver is checking the access rights of the different peripherals connected to the ETZPC bus. If access is denied, the associated device is not bound. Signed-off-by: Lionel Debieve <lionel.debieve@foss.st.com> Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com> Signed-off-by: Patrice Chotard <patrice.chotard@foss.st.com> Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
33 lines
969 B
C
33 lines
969 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause */
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/*
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* Copyright (C) 2023, STMicroelectronics - All Rights Reserved
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*/
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#ifndef MACH_ETZPC_H
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#define MACH_ETZPC_H
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#include <linux/types.h>
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/**
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* stm32_etzpc_check_access - Check ETZPC accesses for given device node
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*
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* @device_node Node of the device for which the accesses are checked
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*
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* @returns 0 on success (if access is granted), -EINVAL if access is denied.
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* Else, returns an appropriate negative ERRNO value
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*/
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int stm32_etzpc_check_access(ofnode device_node);
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/**
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* stm32_etzpc_check_access_by_id - Check ETZPC accesses for given id
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*
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* @device_node Node of the device to get a reference on ETZPC
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* @id ID of the resource to check
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*
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* @returns 0 on success (if access is granted), -EINVAL if access is denied.
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* Else, returns an appropriate negative ERRNO value
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*/
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int stm32_etzpc_check_access_by_id(ofnode device_node, u32 id);
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#endif /* MACH_ETZPC_H*/
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