drm/i915: Enable AUX power earlier
For DDI/TypeC ports the AUX power domain needs to be enabled before the port's PLL is enabled, so move the enabling earlier accordingly. v2: - Preserve the pre_pll hook for GEN9_LP. (Ville) v3: - Add related BSpec entries to commit log. (Jose) v4: - Rebase on the upstream ICL pre_pll_enable change. BSpec: 21750, 22243 Cc: Paulo Zanoni <paulo.r.zanoni@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by: NImre Deak <imre.deak@intel.com> Reviewed-by: NJosé Roberto de Souza <jose.souza@intel.com> Reviewed-by: NRodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181101140427.31026-6-imre.deak@intel.com
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