PM / OPP: Add helpers for initializing CPU OPPs
authorViresh Kumar <viresh.kumar@linaro.org>
Fri, 12 Jun 2015 11:40:38 +0000 (17:10 +0530)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Fri, 7 Aug 2015 01:16:01 +0000 (03:16 +0200)
commit8d4d4e98acd68c31435ebb7beea591dbf60b9eb2
tree701442138dcb807807597dddfb59a83c5bf794a5
parentad656a6a8b1c8b4b2e723646e0402867f2f45395
PM / OPP: Add helpers for initializing CPU OPPs

With "operating-points-v2" its possible to tell which devices share
OPPs. We already have infrastructure to decode that information.

This patch adds following APIs:
 - of_get_cpus_sharing_opps: Returns cpumask of CPUs sharing OPPs (only
   valid with v2 bindings).
 - of_cpumask_init_opp_table: Initializes OPPs for all CPUs present in
   cpumask.
 - of_cpumask_free_opp_table: Frees OPPs for all CPUs present in cpumask.

 - set_cpus_sharing_opps: Sets which CPUs share OPPs (only valid with old
   OPP bindings, as this information isn't present in DT).

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/base/power/opp.c
include/linux/pm_opp.h