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b79ebe74e1
We can simplify the encoder's get_power_domains() hook by calling it only if the encoder is active. That way the hook can return its power domains unconditionally without checking the active state by calling encoder::get_hw_state(). This get_hw_state() query is in fact redundant since it's already done by intel_modeset_readout_hw_state() setting the encoder's crtc or leaving it NULL accordingly. Let's use this fact to decide if the encoder is active. While at it clarify the comment in intel_ddi_get_power_domains() about primary vs. fake MST encoders and make sure we never do an incorrect encoder->dig_port cast for fake MST encoders. Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180705122654.17072-1-imre.deak@intel.com
Linux kernel
============
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See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
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