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[109.252.90.13]) by smtp.gmail.com with ESMTPSA id 13-v6sm1420789lfy.87.2018.08.30.11.05.23 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 30 Aug 2018 11:05:23 -0700 (PDT) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Russell King Cc: linux-arm-kernel@lists.infradead.org, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v3 3/8] ARM: trusted_foundations: Provide information about whether firmware is registered Date: Thu, 30 Aug 2018 21:04:16 +0300 Message-Id: <20180830180421.6415-4-digetx@gmail.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180830180421.6415-1-digetx@gmail.com> References: <20180830180421.6415-1-digetx@gmail.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a helper that provides information about whether Trusted Foundations firmware operations have been registered. Signed-off-by: Dmitry Osipenko --- 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 c496f4cc49cb..d795ed83a3cd 100644 --- a/arch/arm/firmware/trusted_foundations.c +++ b/arch/arm/firmware/trusted_foundations.c @@ -172,3 +172,8 @@ 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 cdd48ab7d191..3f23fa493db6 100644 --- a/arch/arm/include/asm/trusted_foundations.h +++ b/arch/arm/include/asm/trusted_foundations.h @@ -31,6 +31,7 @@ #include #include #include +#include #define TF_PM_MODE_LP0 0 #define TF_PM_MODE_LP1 1 @@ -47,6 +48,7 @@ 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 */ @@ -74,6 +76,11 @@ 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 -- 2.18.0