drm/i915/tgl: Make sure TC-cold is blocked before enabling TC AUX power wells
authorImre Deak <imre.deak@intel.com>
Mon, 20 Jul 2020 23:29:52 +0000 (02:29 +0300)
committerJani Nikula <jani.nikula@intel.com>
Wed, 19 Aug 2020 12:23:43 +0000 (15:23 +0300)
commit4a4064ad79699ee41b74c12fa4f9f960a5bf9b2d
tree23e190981dd4c600d0b99bfd3b62bdcc53d585d1
parentc43a87f537d19499e51a6f013331f196d8f0ddbe
drm/i915/tgl: Make sure TC-cold is blocked before enabling TC AUX power wells

The dependency between power wells is determined by the ordering of the
power well list: when enabling the power wells for a domain, this
happens walking the power well list forward, while disabling them
happens in the reverse direction. Accordingly a power well on the list
must follow any other power well it depends on.

Since the TC AUX power wells depend on TC-cold being blocked, move the
TC-cold off power well before all AUX power wells.

Fixes: 3c02934b24e3 ("drm/i915/tc/tgl: Implement TC cold sequences")
Cc: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200720232952.16228-1-imre.deak@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit b302a2e68807604af2a5015816c1d117747989b6)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
drivers/gpu/drm/i915/display/intel_display_power.c