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| author | Viresh Kumar <viresh.kumar@linaro.org> | 2013-04-01 12:57:49 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-04-02 15:26:32 +0200 |
| commit | 8a67f0ef2b684b34162d39e8f436fe39e9635a19 (patch) | |
| tree | dc997ac3064c69e775485213b824e7c3efeb5b99 /drivers/cpufreq/Makefile | |
| parent | eb2f50ff93f08c8001d0d7e1148948ba80989aaf (diff) | |
| download | lwn-8a67f0ef2b684b34162d39e8f436fe39e9635a19.tar.gz lwn-8a67f0ef2b684b34162d39e8f436fe39e9635a19.zip | |
cpufreq: ARM big LITTLE: Add generic cpufreq driver and its DT glue
big LITTLE is ARM's new Architecture focussing power/performance needs of modern
world. More information about big LITTLE can be found here:
http://www.arm.com/products/processors/technologies/biglittleprocessing.php
http://lwn.net/Articles/481055/
In order to keep cpufreq support for all big LITTLE platforms simple/generic,
this patch tries to add a generic cpufreq driver layer for all big LITTLE
platforms.
The driver is divided into two parts:
- Core driver: Generic and shared across all big LITTLE SoC's
- Glue drivers: Per platform drivers providing ops to the core driver
This patch adds in a generic glue driver which would extract information from
Device Tree.
Future SoC's can either reuse the DT glue or write their own depending on the
need.
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/Makefile')
| -rw-r--r-- | drivers/cpufreq/Makefile | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile index 863fd1865d45..ba9a3e1b1e69 100644 --- a/drivers/cpufreq/Makefile +++ b/drivers/cpufreq/Makefile @@ -44,6 +44,11 @@ obj-$(CONFIG_X86_INTEL_PSTATE) += intel_pstate.o ################################################################################## # ARM SoC drivers +obj-$(CONFIG_ARM_BIG_LITTLE_CPUFREQ) += arm_big_little.o +# big LITTLE per platform glues. Keep DT_BL_CPUFREQ as the last entry in all big +# LITTLE drivers, so that it is probed last. +obj-$(CONFIG_ARM_DT_BL_CPUFREQ) += arm_big_little_dt.o + obj-$(CONFIG_UX500_SOC_DB8500) += dbx500-cpufreq.o obj-$(CONFIG_ARM_S3C2416_CPUFREQ) += s3c2416-cpufreq.o obj-$(CONFIG_ARM_S3C64XX_CPUFREQ) += s3c64xx-cpufreq.o |