From 77f7caa39500ca732025776f316bf2c58f3d1a85 Mon Sep 17 00:00:00 2001
From: Stuart Summers <stuart.summers@intel.com>
Date: Tue, 19 Nov 2019 17:10:16 -0800
Subject: drm/i915: Do not initialize display BW when display not available
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Git-commit: 8a126392b7d7b95cffbf164b0f85974df7d70852
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
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
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/display/intel_bw.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 3f6e29f61323..86e75e858008 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))
--
2.28.0