Commit c776eb2e authored by Vandana Kannan's avatar Vandana Kannan Committed by Daniel Vetter

drm/i915/bxt: don't use unsupported port detection

The port detection register flags in SFUSE_STRAP and DDI_BUF_CTL_A are
not defined for BXT, so don't use them.

Suggested by Satheesh.

v2:
- DDI_BUF_CTL_A bit 0 is not useful on BXT. Making changes to use this
  bit when simulator or BXT is not applicable. Code re-arranged as per
  Damien's suggestion.

v3:
- clarify commit message, add code comment (imre)

Signed-off-by: Vandana Kannan <vandana.kannan@intel.com> (v2)
Cc: M, Satheeshakrishna <satheeshakrishna.m@intel.com>
Cc: Lespiau, Damien <damien.lespiau@intel.com>
Cc: Shankar, Uma <uma.shankar@intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Reviewed-by: default avatarJani Nikula <jani.nikula@intel.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent e3a29055
......@@ -13011,7 +13011,16 @@ static void intel_setup_outputs(struct drm_device *dev)
if (intel_crt_present(dev))
intel_crt_init(dev);
if (HAS_DDI(dev)) {
if (IS_BROXTON(dev)) {
/*
* FIXME: Broxton doesn't support port detection via the
* DDI_BUF_CTL_A or SFUSE_STRAP registers, find another way to
* detect the ports.
*/
intel_ddi_init(dev, PORT_A);
intel_ddi_init(dev, PORT_B);
intel_ddi_init(dev, PORT_C);
} else if (HAS_DDI(dev)) {
int found;
/*
......
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