From d1b5973c877856d24e4453a498145e5f5eb1d9ad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jos=C3=A9=20Roberto=20de=20Souza?= <jose.souza@intel.com>
Date: Tue, 30 Oct 2018 14:57:48 -0700
Subject: drm/i915/icl: Set TC type to unknown when a sudden disconnection
happen
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Git-commit: d1b5973c877856d24e4453a498145e5f5eb1d9ad
Patch-mainline: v5.0-rc1
References: fate#326289
Otherwise it would be in a inconsistent state as port is disconnected
but with a valid tc type.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20181030215750.28213-3-jose.souza@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/i915/intel_dp.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 5973f77f9740..5762a284c3ee 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5031,6 +5031,9 @@ static void icl_update_tc_port_type(struct drm_i915_private *dev_priv,
type_str);
}
+static void icl_tc_phy_disconnect(struct drm_i915_private *dev_priv,
+ struct intel_digital_port *dig_port);
+
/*
* This function implements the first part of the Connect Flow described by our
* specification, Gen11 TypeC Programming chapter. The rest of the flow (reading
@@ -5085,9 +5088,7 @@ static bool icl_tc_phy_connect(struct drm_i915_private *dev_priv,
if (dig_port->tc_type == TC_PORT_TYPEC &&
!(I915_READ(PORT_TX_DFLEXDPSP) & TC_LIVE_STATE_TC(tc_port))) {
DRM_DEBUG_KMS("TC PHY %d sudden disconnect.\n", tc_port);
- val = I915_READ(PORT_TX_DFLEXDPCSSS);
- val &= ~DP_PHY_MODE_STATUS_NOT_SAFE(tc_port);
- I915_WRITE(PORT_TX_DFLEXDPCSSS, val);
+ icl_tc_phy_disconnect(dev_priv, dig_port);
return false;
}
--
2.20.1