Commit Graph

2 Commits

Author SHA1 Message Date
Richard Genoud 14d74598bc cpufreq: ARM big LITTLE: correct dead link in documentation
commit 3566c5b277 ("PM / OPP: Create a directory for opp bindings")
renamed the file:
Documentation/devicetree/bindings/power/opp.txt
to
Documentation/devicetree/bindings/opp/opp.txt
leaving a dead link in cpufreq/arm_big_little_dt.txt.

The link points now to the good file.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-08 15:03:51 +01:00
Viresh Kumar 8a67f0ef2b 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>
2013-04-02 15:26:32 +02:00