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ARM64: kernel: psci: let ACPI probe PSCI version

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PSCI v0.2+ allows the kernel to probe the PSCI firmware version.

This patch replaces the default initialization of PSCI v0.2+
functions with code that allows probing PSCI firmware version
and initializes PSCI functions accordingly.

Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Lorenzo Pieralisi 2015-03-24 17:58:53 +00:00 committed by Will Deacon
parent 48eb3c8a8b
commit d989557187
1 changed files with 1 additions and 3 deletions
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4
arch/arm64/kernel/psci.c
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@ -439,9 +439,7 @@ int __init psci_acpi_init(void)
else
invoke_psci_fn = __invoke_psci_fn_smc;
psci_0_2_set_functions();
return 0;
return psci_probe();
}
#ifdef CONFIG_SMP