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Code

drm/i915: Wait for TypeC PHY complete flag to clear in safe mode

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The PHY status complete flag normally clears when disconnecting the PHY
in DP-alt mode (achieved by switching to safe mode), so wait for the
flag to clear.

v2:
- Use DRM_DEBUG_KMS instead of DRM_DEBUG_DRIVER. (José)

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190628143635.22066-11-imre.deak@intel.com
This commit is contained in:
Imre Deak 2019-06-28 17:36:22 +03:00
parent c905eb28bd
commit ddec362724
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/i915/display/intel_tc.c
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@ -130,6 +130,10 @@ static void icl_tc_phy_set_safe_mode(struct intel_digital_port *dig_port,
val |= DP_PHY_MODE_STATUS_NOT_SAFE(tc_port); val |= DP_PHY_MODE_STATUS_NOT_SAFE(tc_port);
I915_WRITE(PORT_TX_DFLEXDPCSSS, val); I915_WRITE(PORT_TX_DFLEXDPCSSS, val);
if (enable && wait_for(!icl_tc_phy_status_complete(dig_port), 10))
DRM_DEBUG_KMS("Port %s: PHY complete clear timed out\n",
dig_port->tc_port_name);
} }
/* /*