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| author | Martin Botka <martin.botka@somainline.org> | 2024-04-18 17:44:01 +0200 |
|---|---|---|
| committer | Viresh Kumar <viresh.kumar@linaro.org> | 2024-04-19 09:04:27 +0200 |
| commit | 9cf3415ade2d7598d78d2ce6d35d6d6d06132201 (patch) | |
| tree | f797a5c616172c462ad10020f15acf526c9c10e0 /drivers/firmware/smccc | |
| parent | cppc_cpufreq: Fix possible null pointer dereference (diff) | |
| download | linux-9cf3415ade2d7598d78d2ce6d35d6d6d06132201.tar.xz linux-9cf3415ade2d7598d78d2ce6d35d6d6d06132201.zip | |
firmware: smccc: Export revision soc_id function
The "SoC ID revision" as provided via the SMCCC SOCID interface can be
valuable information for drivers, when certain functionality depends
on a die revision, for instance.
One example is the sun50i-cpufreq-nvmem driver, which needs this
information to determine the speed bin of the SoC.
Export the arm_smccc_get_soc_id_revision() function so that it can be
called by any driver.
Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'drivers/firmware/smccc')
| -rw-r--r-- | drivers/firmware/smccc/smccc.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/firmware/smccc/smccc.c b/drivers/firmware/smccc/smccc.c index db818f9dcb8e..d670635914ec 100644 --- a/drivers/firmware/smccc/smccc.c +++ b/drivers/firmware/smccc/smccc.c @@ -69,6 +69,7 @@ s32 arm_smccc_get_soc_id_revision(void) { return smccc_soc_id_revision; } +EXPORT_SYMBOL_GPL(arm_smccc_get_soc_id_revision); static int __init smccc_devices_init(void) { |