[Intel-gfx] [PATCH v2 3/5] drm/i915/icl: Set TC type to unknown when a sudden disconnection happen

[José Roberto de Souza]

Otherwise it would be in a inconsistent state as port is disconnected
but with a valid tc type.

Cc: Paulo Zanoni <paulo.r.zanoni at intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 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 03c47f50b099..950371cf9d27 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -4871,6 +4871,9 @@ 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
@@ -4925,9 +4928,7 @@ 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;
 	}
 
-- 
2.19.1