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| author | Imre Deak <imre.deak@intel.com> | 2017-01-27 11:39:19 +0200 |
|---|---|---|
| committer | Imre Deak <imre.deak@intel.com> | 2017-02-06 16:33:27 +0200 |
| commit | 390b4e00241ce14ca3967c4698c8f6a158c5a674 (patch) | |
| tree | c47a07d71d76816fbba3f61d70e586615a848e2c /drivers/gpu/drm/i915/intel_dp.c | |
| parent | 7fff8126d9cc902b2636d05d5d34894a75174993 (diff) | |
| download | lwn-390b4e00241ce14ca3967c4698c8f6a158c5a674.tar.gz lwn-390b4e00241ce14ca3967c4698c8f6a158c5a674.zip | |
drm/i915/lspcon: Fix resume time initialization due to unasserted HPD
During system resume time initialization the HPD level on LSPCON ports
can stay low for an extended amount of time, leading to failed AUX
transfers and LSPCON initialization. Fix this by waiting for HPD to get
asserted.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99178
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485509961-9010-3-git-send-email-imre.deak@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_dp.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_dp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 2ab0192595c2..21924cf4c8ad 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4519,8 +4519,8 @@ static bool bxt_digital_port_connected(struct drm_i915_private *dev_priv, * * Return %true if @port is connected, %false otherwise. */ -static bool intel_digital_port_connected(struct drm_i915_private *dev_priv, - struct intel_digital_port *port) +bool intel_digital_port_connected(struct drm_i915_private *dev_priv, + struct intel_digital_port *port) { if (HAS_PCH_IBX(dev_priv)) return ibx_digital_port_connected(dev_priv, port); |