[cip-dev] [PATCH 4.4.y-cip 00/23] PM / OPP v2 & cpufreq backports part 2

["Chen-Yu Tsai (Moxa)" <wens@csie.org>]

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Hi everyone,

This is part 2 of MOXA's PM / OPP / cpufreq backport series. The whole
series aims to backport patches related to PM / OPPv2 and cpufreq
which were included in the v4.4 kernel from TI's SDK. The end goal is
to include cpufreq-ti and convert am33xx to using it and OPPv2.

Part 2 here includes patches from the v4.6 cycle, as well as additional
fixed found through Fixes tags:

    9f8ea969d5cf PM / OPP: get/put regulators from OPP core
    7d34d56ef334 PM / OPP: Disable OPPs that aren't supported by the regulator
    655c9df96175 PM / OPP: Introduce dev_pm_opp_get_max_volt_latency()
    2174344765f4 PM / OPP: Introduce dev_pm_opp_get_max_transition_latency()
    50f8cfbd5897 PM / OPP: Parse clock-latency and voltage-tolerance for v1 bindings
    d54974c2513f PM / OPP: Manage device clk
    6a0712f6f199 PM / OPP: Add dev_pm_opp_set_rate()
    896d6a4c0f41 cpufreq: dt: Convert few pr_debug/err() calls to dev_dbg/err()
    457e99e60a8f cpufreq: dt: Rename 'need_update' to 'opp_v1'
    391d9aef8145 cpufreq: dt: OPP layers handles clock-latency for V1 bindings as well
    050794aaebbb cpufreq: dt: Pass regulator name to the OPP core
    6def6ea75e6d cpufreq: dt: Unsupported OPPs are already disabled
    755b888ff098 cpufreq: dt: Reuse dev_pm_opp_get_max_transition_latency()
    78c3ba5df96c cpufreq: dt: Use dev_pm_opp_set_rate() to switch frequency
    df2c8ec28e73 cpufreq: dt: No need to fetch voltage-tolerance
    dd02a3d92008 cpufreq: dt: No need to allocate resources anymore
    78ecc56247f0 PM / OPP: Fix NULL pointer dereference crash when disabling OPPs
    0c717d0f9cb4 PM / OPP: Initialize regulator pointer to an error value
    a5da64477ee7 PM / OPP: Fix incorrect comments
    2c2709dc6921 PM / OPP: Rename structures for clarity
    b318556479cc cpufreq: dt: Drop stale comment
    21f8a99ce61b PM / OPP: Remove useless check
    c5c2a97b3ac7 PM / OPP: Update voltage in case freq == old_freq

Of these,

    b318556479cc cpufreq: dt: Drop stale comment

was found while looking through git logs.

    21f8a99ce61b PM / OPP: Remove useless check
    c5c2a97b3ac7 PM / OPP: Update voltage in case freq == old_freq

were found by looking for commit hashes in Fixes tags.
All other patches were included from TI's SDK.

The patches apply cleanly on top of linux-4.4.y-cip. The last patch
involved some backporting due to path and code changes between v4.6
and v4.18.

Please have a look.


Regards
ChenYu


Jon Hunter (1):
  PM / OPP: Fix NULL pointer dereference crash when disabling OPPs

Viresh Kumar (21):
  PM / OPP: get/put regulators from OPP core
  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_debug/err() calls to dev_dbg/err()
  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
  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: No need to fetch voltage-tolerance
  cpufreq: dt: No need to allocate resources anymore
  PM / OPP: Initialize regulator pointer to an error value
  PM / OPP: Fix incorrect comments
  PM / OPP: Rename structures for clarity
  cpufreq: dt: Drop stale comment
  PM / OPP: Remove useless check

Waldemar Rymarkiewicz (1):
  PM / OPP: Update voltage in case freq == old_freq

 drivers/base/power/opp/core.c    | 1066 +++++++++++++++++++++---------
 drivers/base/power/opp/cpu.c     |   22 +-
 drivers/base/power/opp/debugfs.c |   85 ++-
 drivers/base/power/opp/opp.h     |   74 ++-
 drivers/cpufreq/cpufreq-dt.c     |  303 +++------
 include/linux/pm_opp.h           |   27 +
 6 files changed, 973 insertions(+), 604 deletions(-)

-- 
2.27.0


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