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drm/i915/psr: Nuke PSR support for VLV and CHV

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PSR hardware and hence the driver code for VLV and CHV deviates a lot from
their DDI counterparts. While the feature has been disabled for a long time
now, retaining support for these platforms is a maintenance burden. There
have been multiple refactoring commits to just keep the existing code for
these platforms in line with the rest. There are known issues that need to
be fixed to enable PSR on these platforms, and there is no PSR capable
platform in CI to ensure the code does not break again if we get around to
fixing the existing issues. On account of all these reasons, let's nuke
this code for now and bring it back if a need arises in the future.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180511230059.19387-1-dhinakaran.pandiyan@intel.com
This commit is contained in:
Dhinakaran Pandiyan
2018-05-11 16:00:59 -07:00
committed by Jani Nikula
parent 77312ae8f0
commit ce3508fd2a
6 changed files with 27 additions and 270 deletions
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2
drivers/gpu/drm/i915/intel_frontbuffer.c
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@@ -153,8 +153,6 @@ void intel_frontbuffer_flip_prepare(struct drm_i915_private *dev_priv,
/* Remove stale busy bits due to the old buffer. */
dev_priv->fb_tracking.busy_bits &= ~frontbuffer_bits;
spin_unlock(&dev_priv->fb_tracking.lock);
intel_psr_single_frame_update(dev_priv, frontbuffer_bits);
}
/**