[PATCH 3/3] cpufreq: Enable big.LITTLE cpufreq driver on arm64

[Viresh Kumar]

On 9 May 2014 22:10, Mark Brown <broonie at kernel.org> wrote:
> From: Mark Brown <broonie at linaro.org>
>
> There are arm64 big.LITTLE systems so enable the big.LITTLE cpufreq driver.
> While IKS is not available for these systems the driver is still useful
> since it manages clusters with shared frequencies which is the common case
> for these systems.
>
> Long term combining the cpufreq-cpu0 and big.LITTLE drivers may be a
> more sensible option but that is substantially more complex especially
> in the case of IKS.

Yeah, it was left separately for IKS specially :(

> Signed-off-by: Mark Brown <broonie at linaro.org>
> ---
>  drivers/cpufreq/Kconfig.arm | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
> index 6e05a1e18e52..6a7dd3e958d5 100644
> --- a/drivers/cpufreq/Kconfig.arm
> +++ b/drivers/cpufreq/Kconfig.arm
> @@ -5,7 +5,8 @@
>  # big LITTLE core layer and glue drivers
>  config ARM_BIG_LITTLE_CPUFREQ
>         tristate "Generic ARM big LITTLE CPUfreq driver"
> -       depends on ARM && BIG_LITTLE && ARM_CPU_TOPOLOGY && HAVE_CLK
> +       depends on (BIG_LITTLE && ARM_CPU_TOPOLOGY) || (ARM64 && SMP)
> +       depends on HAVE_CLK
>         select PM_OPP
>         help
>           This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.

Acked-by: Viresh Kumar <viresh.kumar at linaro.org>