[PATCH v2 2/5] ARM: trusted_foundations: Provide information about whether firmware is registered
From: digetx@gmail.com (Dmitry Osipenko)
Date: 2018-06-19 11:03:02
Also in:
linux-tegra, lkml
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
Add a helper that provides information about whether Trusted Foundations firmware operations have been registered. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- arch/arm/firmware/trusted_foundations.c | 5 +++++ arch/arm/include/asm/trusted_foundations.h | 7 +++++++ 2 files changed, 12 insertions(+)
diff --git a/arch/arm/firmware/trusted_foundations.c b/arch/arm/firmware/trusted_foundations.c
index 30df6547020f..f6eeb67de217 100644
--- a/arch/arm/firmware/trusted_foundations.c
+++ b/arch/arm/firmware/trusted_foundations.c@@ -124,3 +124,8 @@ void of_register_trusted_foundations(void) panic("Trusted Foundation: missing version-minor property\n"); register_trusted_foundations(&pdata); } + +bool trusted_foundations_registered(void) +{ + return firmware_ops == &trusted_foundations_ops; +}
diff --git a/arch/arm/include/asm/trusted_foundations.h b/arch/arm/include/asm/trusted_foundations.h
index 00748350cf72..bfd0d780824b 100644
--- a/arch/arm/include/asm/trusted_foundations.h
+++ b/arch/arm/include/asm/trusted_foundations.h@@ -31,6 +31,7 @@ #include <linux/of.h> #include <linux/cpu.h> #include <linux/smp.h> +#include <linux/types.h> struct trusted_foundations_platform_data { unsigned int version_major;
@@ -41,6 +42,7 @@ struct trusted_foundations_platform_data { void register_trusted_foundations(struct trusted_foundations_platform_data *pd); void of_register_trusted_foundations(void); +bool trusted_foundations_registered(void); #else /* CONFIG_TRUSTED_FOUNDATIONS */
@@ -68,6 +70,11 @@ static inline void of_register_trusted_foundations(void) if (of_find_compatible_node(NULL, NULL, "tlm,trusted-foundations")) register_trusted_foundations(NULL); } + +static inline bool trusted_foundations_registered(void) +{ + return false; +} #endif /* CONFIG_TRUSTED_FOUNDATIONS */ #endif
--
2.17.1