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authorSudeep Holla <sudeep.holla@arm.com>2020-05-18 12:12:21 +0300
committerWill Deacon <will@kernel.org>2020-05-20 21:10:37 +0300
commita4fb17465182c9fc13104e4df04d050892055205 (patch)
treee0ace75bc1e3d551cc1a94e4ed9308896c639f9e /drivers/firmware/smccc
parentf2ae97062a48b114bcf8fb2e99574d9ed2c2cd1b (diff)
downloadlinux-a4fb17465182c9fc13104e4df04d050892055205.tar.xz
firmware: smccc: Add function to fetch SMCCC version
For backward compatibility reasons, PSCI maintains SMCCC version as SMCCC didn't provide ARM_SMCCC_VERSION_FUNC_ID until v1.1. PSCI initialises both the SMCCC version and conduit. Similar to the conduit, let us provide accessors to fetch the SMCCC version also so that other SMCCC v1.1+ features can use it. Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Tested-by: Etienne Carriere <etienne.carriere@st.com> Reviewed-by: Steven Price <steven.price@arm.com> Reviewed-by: Etienne Carriere <etienne.carriere@st.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20200518091222.27467-7-sudeep.holla@arm.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/firmware/smccc')
-rw-r--r--drivers/firmware/smccc/smccc.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/firmware/smccc/smccc.c b/drivers/firmware/smccc/smccc.c
index de92a4b9f8f6..4e80921ee212 100644
--- a/drivers/firmware/smccc/smccc.c
+++ b/drivers/firmware/smccc/smccc.c
@@ -24,3 +24,8 @@ enum arm_smccc_conduit arm_smccc_1_1_get_conduit(void)
return smccc_conduit;
}
+
+u32 arm_smccc_get_version(void)
+{
+ return smccc_version;
+}