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ARM: at91: add sam_linux_is_optee_available() function

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Add sam_linux_is_optee_available() which allows to know if OP-TEE is
available for Linux. This function is used by code which needs to
know if we running with OP-TEE available or not.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
[claudiu.beznea: edit commit title and message, renamed
 sam_linux_is_in_normal_world() into sam_linux_is_optee_available()]
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220606145701.185552-2-clement.leger@bootlin.com
This commit is contained in:
Clément Léger 2022-06-06 16:57:00 +02:00 committed by Claudiu Beznea
parent f2906aa863
commit c71572aa54
2 changed files with 7 additions and 0 deletions
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6
arch/arm/mach-at91/sam_secure.c
View File

@ -27,6 +27,12 @@ struct arm_smccc_res sam_smccc_call(u32 fn, u32 arg0, u32 arg1)
return res; return res;
} }
bool sam_linux_is_optee_available(void)
{
/* If optee has been detected, then we are running in normal world */
return optee_available;
}
void __init sam_secure_init(void) void __init sam_secure_init(void)
{ {
struct device_node *np; struct device_node *np;

1
arch/arm/mach-at91/sam_secure.h
View File

@ -14,5 +14,6 @@
void __init sam_secure_init(void); void __init sam_secure_init(void);
struct arm_smccc_res sam_smccc_call(u32 fn, u32 arg0, u32 arg1); struct arm_smccc_res sam_smccc_call(u32 fn, u32 arg0, u32 arg1);
bool sam_linux_is_optee_available(void);
#endif /* SAM_SECURE_H */ #endif /* SAM_SECURE_H */