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Currently we disable the VGA plane from various places, sometimes
multiple times in the same init/resume sequence. Get rid of all this
mess and do it just once. The most correct place seems to be just
after intel_early_display_was() as that one applies various workarounds
that need to be in place before we touch any planes (including the
VGA plane).
Actually, we do still have a second caller in
vlv_display_power_well_init(). I think we still need that as the reset
value of VGACNTR is 0x0 and thus technically the VGA plane will be
(at least partially) enabled after the power well has been toggled.
In both cases we have the necessary power reference already held
(INIT power domain for load/resume case, and the display power well
itself being what we need for vlv_display_power_well_init()).
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250417114454.12836-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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Now that intel_vga_disable() itself will print a debug
message, intel_vga_redisable_power_on() is completely redundant.
Get rid of it.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250417114454.12836-6-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
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struct intel_display will replace struct drm_i915_private as
the main thing for display code. Convert the VGA code to
use it (as much as possible at this stage).
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240906143306.15937-5-ville.syrjala@linux.intel.com
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Rename the function per Ville's suggestion. No functional changes.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191004122019.12009-1-jani.nikula@intel.com
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Split out the code related to vga client and vgaarb all over the place
into new intel_vga.[ch]. No functional changes.
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191001152506.7854-1-jani.nikula@intel.com
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