[PATCH 00/17] PM / OPP: Introduce APIs to transition OPPs

[Viresh Kumar <viresh.kumar@linaro.org>]

This patchset add APIs in OPP layer to allow OPPs transitioning from
within OPP layer. Currently all OPP users need to replicate the same
code to switch between OPPs. While the same can be handled easily by
OPP-core.

The first Eight patches update the OPP core to introduce the new APIs
and the next Nine patches update cpufreq-dt for the same.

Testing:
- Tested on exynos 5250-arndale (dual-cortex-A15)
- Tested for both Old-V1 bindings and New V2 bindings
- Tested with regulator names as: 'cpu-supply' and 'cpu0-supply'
- Tested with Unsupported supply ranges as well, to check the
  opp-disable logic

Viresh Kumar (17):
  PM / OPP: get/put regulators from OPP core
  PM / OPP: Add APIs to set regulator-name
  PM / OPP: Disable OPPs that aren't supported by the regulator
  PM / OPP: Introduce dev_pm_opp_get_max_volt_latency()
  PM / OPP: Introduce dev_pm_opp_get_max_transition_latency()
  PM / OPP: Parse clock-latency and voltage-tolerance for v1 bindings
  PM / OPP: Manage device clk
  PM / OPP: Add dev_pm_opp_set_rate()
  cpufreq: dt: Convert few pr_XXX() calls to dev_XXX()
  cpufreq: dt: Rename 'need_update' to 'opp_v1'
  cpufreq: dt: OPP layers handles clock-latency for V1 bindings as well
  cpufreq: dt: Pass regulator name to the OPP core for V1 bindings
  cpufreq: dt: Unsupported OPPs are already disabled
  cpufreq: dt: Reuse dev_pm_opp_get_max_transition_latency()
  cpufreq: dt: Use dev_pm_opp_set_rate() to switch frequency
  cpufreq: dt: drop references to DT node
  cpufreq: dt: No need to allocate resources anymore

 drivers/base/power/opp/core.c | 428 ++++++++++++++++++++++++++++++++++++++++--
 drivers/base/power/opp/opp.h  |  15 ++
 drivers/cpufreq/cpufreq-dt.c  | 254 ++++++++-----------------
 include/linux/pm_opp.h        |  27 +++
 4 files changed, 530 insertions(+), 194 deletions(-)

-- 
2.7.0.rc1.186.g94414c4