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drm/i915: Enable display WA#1183 from its correct spot
The DMC FW specific part of display WA#1183 is supposed to be enabled
whenever enabling DC5 or DC6, so move it to the DC6 enable function
from the DC6 disable function.
I noticed this after Daniel's patch to remove the unused
skl_disable_dc6() function.
Fixes: 53421c2fe9
("drm/i915: Apply Display WA #1183 on skl, kbl, and cfl")
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org>
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/20180419155109.29451-1-imre.deak@intel.com
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@ -641,19 +641,18 @@ void skl_enable_dc6(struct drm_i915_private *dev_priv)
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DRM_DEBUG_KMS("Enabling DC6\n");
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gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
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/* Wa Display #1183: skl,kbl,cfl */
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if (IS_GEN9_BC(dev_priv))
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I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
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SKL_SELECT_ALTERNATE_DC_EXIT);
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gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
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}
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void skl_disable_dc6(struct drm_i915_private *dev_priv)
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{
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DRM_DEBUG_KMS("Disabling DC6\n");
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/* Wa Display #1183: skl,kbl,cfl */
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if (IS_GEN9_BC(dev_priv))
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I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
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SKL_SELECT_ALTERNATE_DC_EXIT);
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gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
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}
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