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** Branch linked: lp:~ubuntu-branches/ubuntu/trusty/linux-keystone
/trusty-proposed

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https://bugs.launchpad.net/bugs/1324571

Title:
  powerpc: enable powernv-cpufreq as built-in (vs. module)

Status in “linux” package in Ubuntu:
  Fix Released
Status in “linux” source package in Trusty:
  Fix Committed
Status in “linux” source package in Utopic:
  Fix Released

Bug description:
  The cpufreq driver for powernv is currently built as a module
  (powernv-cpufreq.ko; see bug 1309576).

  It is not automatically loaded in the boot process (even when included
  in the initrd).

  It is desirable to have it built-in so it automatically loads on systems booting in PowerNV mode.
  One of the reaons is to save power by default (the default cpufreq governor is ondemand).

  That cpufreq driver fails gracefully on other (non IBM, OPAL) powerpc
  platforms that don't have the expected files in the device-tree (see
  [2]).

  A patch will be sent to the kernel-team mailing list.

  Thanks.

  [1] https://lists.ubuntu.com/archives/kernel-
  team/2014-April/042431.html

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