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| author | Daniel Lezcano <daniel.lezcano@linaro.org> | 2019-12-04 16:39:27 +0100 |
|---|---|---|
| committer | Daniel Lezcano <daniel.lezcano@linaro.org> | 2020-01-27 10:24:32 +0100 |
| commit | 2b586feab44f41db605924db15c5b039535b1f9b (patch) | |
| tree | 642bc1c5fe8a3506417cf0f8130e658f41a5c6c1 | |
| parent | thermal: qoriq: Add hwmon support (diff) | |
| download | linux-2b586feab44f41db605924db15c5b039535b1f9b.tar.xz linux-2b586feab44f41db605924db15c5b039535b1f9b.zip | |
thermal/drivers/Kconfig: Convert the CPU cooling device to a choice
The next changes will add a new way to cool down a CPU by injecting
idle cycles. With the current configuration, a CPU cooling device is
the cpufreq cooling device. As we want to add a new CPU cooling
device, let's convert the CPU cooling to a choice giving a list of CPU
cooling devices. At this point, there is obviously only one CPU
cooling device.
There is no functional changes.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lore.kernel.org/r/20191204153930.9128-1-daniel.lezcano@linaro.org
| -rw-r--r-- | drivers/thermal/Kconfig | 14 | ||||
| -rw-r--r-- | drivers/thermal/Makefile | 2 | ||||
| -rw-r--r-- | include/linux/cpu_cooling.h | 6 |
3 files changed, 16 insertions, 6 deletions
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig index 79b27865c6f4..62c1c83f5d31 100644 --- a/drivers/thermal/Kconfig +++ b/drivers/thermal/Kconfig @@ -151,16 +151,26 @@ config THERMAL_GOV_POWER_ALLOCATOR config CPU_THERMAL bool "Generic cpu cooling support" - depends on CPU_FREQ 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. + +if CPU_THERMAL + +config CPU_FREQ_THERMAL + bool "CPU frequency cooling device" + depends on CPU_FREQ + default y + 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. +endif config CLOCK_THERMAL bool "Generic clock cooling support" diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile index baeb70bf0568..3f3533c01aa3 100644 --- a/drivers/thermal/Makefile +++ b/drivers/thermal/Makefile @@ -19,7 +19,7 @@ thermal_sys-$(CONFIG_THERMAL_GOV_USER_SPACE) += user_space.o thermal_sys-$(CONFIG_THERMAL_GOV_POWER_ALLOCATOR) += power_allocator.o # cpufreq cooling -thermal_sys-$(CONFIG_CPU_THERMAL) += cpu_cooling.o +thermal_sys-$(CONFIG_CPU_FREQ_THERMAL) += cpu_cooling.o # clock cooling thermal_sys-$(CONFIG_CLOCK_THERMAL) += clock_cooling.o diff --git a/include/linux/cpu_cooling.h b/include/linux/cpu_cooling.h index b74732535e4b..3cdd85f987d7 100644 --- a/include/linux/cpu_cooling.h +++ b/include/linux/cpu_cooling.h @@ -19,7 +19,7 @@ struct cpufreq_policy; -#ifdef CONFIG_CPU_THERMAL +#ifdef CONFIG_CPU_FREQ_THERMAL /** * cpufreq_cooling_register - function to create cpufreq cooling device. * @policy: cpufreq policy. @@ -40,7 +40,7 @@ void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev); struct thermal_cooling_device * of_cpufreq_cooling_register(struct cpufreq_policy *policy); -#else /* !CONFIG_CPU_THERMAL */ +#else /* !CONFIG_CPU_FREQ_THERMAL */ static inline struct thermal_cooling_device * cpufreq_cooling_register(struct cpufreq_policy *policy) { @@ -58,6 +58,6 @@ of_cpufreq_cooling_register(struct cpufreq_policy *policy) { return NULL; } -#endif /* CONFIG_CPU_THERMAL */ +#endif /* CONFIG_CPU_FREQ_THERMAL */ #endif /* __CPU_COOLING_H__ */ |