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path: root/drivers/gpu/drm/i915/intel_lvds.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_lvds.c')
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 23126023aeba..cba04ddc8b01 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -71,8 +71,13 @@ static bool intel_lvds_get_hw_state(struct intel_encoder *encoder,
struct drm_device *dev = encoder->base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_lvds_encoder *lvds_encoder = to_lvds_encoder(&encoder->base);
+ enum intel_display_power_domain power_domain;
u32 tmp;
+ power_domain = intel_display_port_power_domain(encoder);
+ if (!intel_display_power_enabled(dev_priv, power_domain))
+ return false;
+
tmp = I915_READ(lvds_encoder->reg);
if (!(tmp & LVDS_PORT_EN))