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SubjectRe: [PATCH 4/8] thermal/drivers/Kconfig: Convert the CPU cooling device to a choice
On 23-01-18, 16:34, Daniel Lezcano wrote:
> The next changes will add new way to cool down a CPU. In order to
> sanitize and make the overall cpu cooling code consistent and robust
> we must prevent the cpu cooling devices to co-exists with the same
> purpose at the same time in the kernel.
>
> Make the CPU cooling device a choice in the Kconfig, so only one CPU
> cooling strategy can be chosen.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
> drivers/thermal/Kconfig | 20 +++++++++++++++++---
> 1 file changed, 17 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
> index 315ae29..925e73b 100644
> --- a/drivers/thermal/Kconfig
> +++ b/drivers/thermal/Kconfig
> @@ -142,17 +142,31 @@ config THERMAL_GOV_POWER_ALLOCATOR
> allocating and limiting power to devices.
>
> config CPU_THERMAL
> - bool "generic cpu cooling support"
> - depends on CPU_FREQ
> + bool "Generic cpu cooling support"
> depends on THERMAL_OF
> help
> + Enable the CPU cooling features. If the system has no active
> + cooling device available, this option allows to use the CPU
> + as a cooling device.
> +
> +choice
> + prompt "CPU cooling strategies"
> + depends on CPU_THERMAL
> + default CPU_FREQ_THERMAL
> + help
> + Select the CPU cooling strategy.
> +
> +config CPU_FREQ_THERMAL

Perhaps you should start using this macro in code in this patch
itself.

> + bool "CPU frequency cooling strategy"
> + depends on CPU_FREQ
> + help
> This implements the generic cpu cooling mechanism through frequency
> reduction. An ACPI version of this already exists
> (drivers/acpi/processor_thermal.c).
> This will be useful for platforms using the generic thermal interface
> and not the ACPI interface.
>
> - If you want this support, you should say Y here.
> +endchoice
>
> config CLOCK_THERMAL
> bool "Generic clock cooling support"
> --
> 2.7.4

--
viresh

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