19  * struct stm32_firewall - Information on a device's firewall. Each device can have more than one
20  *			   firewall.
22  * @firewall_ctrl:		Pointer referencing a firewall controller of the device. It is
26  * @entry:			Name of the firewall entry
28  * @firewall_id:		Firewall ID associated the device for this firewall controller
40  * stm32_firewall_get_firewall - Get the firewall(s) associated to given device.
41  *				 The firewall controller reference is always the first argument
43  *				 The firewall ID is always the second argument of each of the
45  *				 If there's no argument linked to the phandle, then the firewall ID
49  * @firewall:			Array of firewall references
50  * @nb_firewall:		Number of firewall references to get. Must be at least 1.
52  * Returns 0 on success, -ENODEV if there's no match with a firewall controller or appropriate errno
55 int stm32_firewall_get_firewall(struct device_node *np, struct stm32_firewall *firewall,
59  * stm32_firewall_grant_access - Request firewall access rights and grant access.
61  * @firewall:			Firewall reference containing the ID to check against its firewall
64  * Returns 0 if access is granted, -EACCES if access is denied, -ENODEV if firewall is null or
67 int stm32_firewall_grant_access(struct stm32_firewall *firewall);
73  * @firewall:			Firewall reference containing the ID to check against its firewall
76 void stm32_firewall_release_access(struct stm32_firewall *firewall);
79  * stm32_firewall_grant_access_by_id - Request firewall access rights of a given device
80  *				       based on a specific firewall ID
83  * There is no way to ensure that the given ID will correspond to the firewall referenced in the
86  * This function should be used for subsystem resources that do not have the same firewall ID
90  * @firewall:			Firewall reference containing the firewall controller
91  * @subsystem_id:		Firewall ID of the subsystem resource
93  * Returns 0 if access is granted, -EACCES if access is denied, -ENODEV if firewall is null or
96 int stm32_firewall_grant_access_by_id(struct stm32_firewall *firewall, u32 subsystem_id);
103  * There is no way to ensure that the given ID will correspond to the firewall referenced in the
106  * This function should be used for subsystem resources that do not have the same firewall ID
110  * @firewall:			Firewall reference containing the firewall controller
111  * @subsystem_id:		Firewall ID of the subsystem resource
113 void stm32_firewall_release_access_by_id(struct stm32_firewall *firewall, u32 subsystem_id);
117 int stm32_firewall_get_firewall(struct device_node *np, struct stm32_firewall *firewall,
123 int stm32_firewall_grant_access(struct stm32_firewall *firewall)  in stm32_firewall_grant_access()  argument
128 void stm32_firewall_release_access(struct stm32_firewall *firewall)  in stm32_firewall_release_access()  argument
132 int stm32_firewall_grant_access_by_id(struct stm32_firewall *firewall, u32 subsystem_id)  in stm32_firewall_grant_access_by_id()  argument
137 void stm32_firewall_release_access_by_id(struct stm32_firewall *firewall, u32 subsystem_id)  in stm32_firewall_release_access_by_id()  argument