diff options
| author | Ashwin Chaugule <ashwin.chaugule@linaro.org> | 2015-08-05 16:40:26 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-08-25 04:25:47 +0300 |
| commit | 5f05586c609dfc737e2e00c757a51c7dbb415e51 (patch) | |
| tree | 282d1717e70ad141d994d87589006d78d22c5006 /drivers | |
| parent | 239708a3af44064366f1af0eea02dc1e8991c11b (diff) | |
| download | linux-5f05586c609dfc737e2e00c757a51c7dbb415e51.tar.xz | |
ACPI: Decouple ACPI idle and ACPI processor drivers
This patch introduces a new Kconfig symbol, ACPI_PROCESSOR_IDLE,
which is auto selected by architectures which support the ACPI
based C states for CPU Idle management.
The processor_idle driver in its present form contains declarations
specific to X86 and IA64. Since there are no reasonable defaults
for other architectures e.g. ARM64, the driver is selected only for
X86 or IA64.
This helps in decoupling the ACPI processor_driver from the ACPI
processor_idle driver which is useful for the upcoming alternative
patchwork for controlling CPU Performance (CPPC) and CPU Idle (LPI).
Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/acpi/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/acpi/Makefile | 3 |
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index d6e2a869033c..54e9729f9634 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -193,10 +193,14 @@ config ACPI_CPU_FREQ_PSS bool select THERMAL +config ACPI_PROCESSOR_IDLE + bool + select CPU_IDLE + config ACPI_PROCESSOR tristate "Processor" depends on X86 || IA64 - select CPU_IDLE + select ACPI_PROCESSOR_IDLE select ACPI_CPU_FREQ_PSS default y help diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 7e97aef373ae..3ea59ae85c19 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -80,7 +80,8 @@ obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o obj-$(CONFIG_ACPI_BGRT) += bgrt.o # processor has its own "processor." module_param namespace -processor-y := processor_driver.o processor_idle.o +processor-y := processor_driver.o +processor-$(CONFIG_ACPI_PROCESSOR_IDLE) += processor_idle.o processor-$(CONFIG_ACPI_CPU_FREQ_PSS) += processor_throttling.o \ processor_thermal.o processor-$(CONFIG_CPU_FREQ) += processor_perflib.o |