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-rw-r--r--arch/arm/mach-stm32mp/include/mach/etzpc.h32
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-stm32mp/include/mach/etzpc.h b/arch/arm/mach-stm32mp/include/mach/etzpc.h
new file mode 100644
index 00000000000..fd697c3e2ac
--- /dev/null
+++ b/arch/arm/mach-stm32mp/include/mach/etzpc.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause */
+/*
+ * Copyright (C) 2023, STMicroelectronics - All Rights Reserved
+ */
+
+#ifndef MACH_ETZPC_H
+#define MACH_ETZPC_H
+
+#include <linux/types.h>
+
+/**
+ * stm32_etzpc_check_access - Check ETZPC accesses for given device node
+ *
+ * @device_node Node of the device for which the accesses are checked
+ *
+ * @returns 0 on success (if access is granted), -EINVAL if access is denied.
+ * Else, returns an appropriate negative ERRNO value
+ */
+int stm32_etzpc_check_access(ofnode device_node);
+
+/**
+ * stm32_etzpc_check_access_by_id - Check ETZPC accesses for given id
+ *
+ * @device_node Node of the device to get a reference on ETZPC
+ * @id ID of the resource to check
+ *
+ * @returns 0 on success (if access is granted), -EINVAL if access is denied.
+ * Else, returns an appropriate negative ERRNO value
+ */
+int stm32_etzpc_check_access_by_id(ofnode device_node, u32 id);
+
+#endif /* MACH_ETZPC_H*/