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[6/6] drm/i915/bxt: Enable HPD during suspend.

Message ID 1459859678-16343-7-git-send-email-animesh.manna@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Manna, Animesh April 5, 2016, 12:34 p.m. UTC 
Based on vbt entry enabling i915 driver to act on
hpd support during suspend.

Signed-off-by: Animesh Manna <animesh.manna@intel.com>
---
 drivers/gpu/drm/i915/intel_bios.c | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 9c406b0..8ed084a 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -529,6 +529,13 @@  parse_driver_features(struct drm_i915_private *dev_priv,
 	if (driver->lvds_config == BDB_DRIVER_FEATURE_EDP)
 		dev_priv->vbt.edp.support = 1;
 
+	if (driver->hpd_wakeup_source) {
+		dev_priv->vbt.hpd_wakeup_enabled =
+				ENABLE_HOT_PLUG_AS_WAKE_EVENT;
+		DRM_DEBUG_KMS("HPD as wakeup feature is enabled\n");
+	} else
+		DRM_DEBUG_KMS("HPD wakeup source feature is disabled in VBT\n");
+
 	DRM_DEBUG_KMS("DRRS State Enabled:%d\n", driver->drrs_enabled);
 	/*
 	 * If DRRS is not supported, drrs_type has to be set to 0.