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drm/i915: Do not initialize display BW when display not available

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When display is not available, finding the memory bandwidth available
for display is not useful. Skip this sequence here.

References: HSDES 1209978255

Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191120011016.18049-1-stuart.summers@intel.com
This commit is contained in:
Stuart Summers 2019-11-19 17:10:16 -08:00 committed by Ville Syrjälä
parent e7862f476e
commit 8a126392b7
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/display/intel_bw.c
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@ -264,6 +264,9 @@ static unsigned int icl_max_bw(struct drm_i915_private *dev_priv,
void intel_bw_init_hw(struct drm_i915_private *dev_priv)
{
if (!HAS_DISPLAY(dev_priv))
return;
if (IS_GEN(dev_priv, 12))
icl_get_bw_info(dev_priv, &tgl_sa_info);
else if (IS_GEN(dev_priv, 11))