tree caf74602fcb01ea769822786c7afb83dd60ef078
parent 0a445945be6d10c5e6fd5599a27e43b6a7fdf14d
author Imre Deak <imre.deak@intel.com> 1502723730 +0300
committer Imre Deak <imre.deak@intel.com> 1502800090 +0300

drm/i915/hsw+: Add support for multiple power well regs

Future platforms increase the number of power wells which require
additional control registers. A convenient way to select the correct
register is to use the high bits of the power well ID as index. This
patch only prepares for this, while upcoming platform enabling patches
will add the actual new power well IDs and corresponding power well
control registers.

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Cc: Rakshmi Bhatia <rakshmi.bhatia@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Reviewed-by: Rakshmi Bhatia <rakshmi.bhatia@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170814151530.24154-2-imre.deak@intel.com