From: Stuart Summers Date: Wed, 20 Nov 2019 01:10:16 +0000 (-0800) Subject: drm/i915: Do not initialize display BW when display not available X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8a126392b7d7b95cffbf164b0f85974df7d70852;p=linux.git drm/i915: Do not initialize display BW when display not available 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 Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20191120011016.18049-1-stuart.summers@intel.com --- diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c index 3f6e29f613231..86e75e8580089 100644 --- a/drivers/gpu/drm/i915/display/intel_bw.c +++ b/drivers/gpu/drm/i915/display/intel_bw.c @@ -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))