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2016-07-27lib: update docs for igt_pmDaniel Vetter
- Move all the pm helpers into igt_pm.c. No idea why that wasn't done in the original commit that created igt_pm.c. - Add missing docs where needed. Cc: David Weinehall <david.weinehall@intel.com> Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-02-19lib/igt_pm: Lib for power managementDavid Weinehall
Move power management related code to a separate library. Initially this is done only for workarounds that apply to external components. Modify the users of such workarounds accordingly. This currently involves HD audio and SATA link power management. For SATA link PM there's also code to save the previous settings, to allow for resetting the values after we've finished testing. Signed-off-by: David Weinehall <david.weinehall@intel.com> Reviewed-by: Marius Vlad <marius.c.vlad@intel.com> Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>