We currently assume port A is connected to a DP sink when VBT is absent,
instead assume it is connected to an eDP sink, which seems like a more
common configuration. Although I don't have data to back this up,
it is still just as valid as asumming port A is not eDP. This reverts to
the behavior before a98d9c1 ("drm/i915/ddi: Rely on VBT DDI port info for
eDP detection") except only when there is no VBT. Knowing whether a panel
is eDP or not from the panel itself would have been nicer, but I cannot
find any DPCD registers that provide this reliably.Cc: Jani Nikula <[email protected]> Cc: Imre Deak <[email protected]> Cc: Rodrigo Vivi <[email protected]> Cc: Clint Taylor <[email protected]> Signed-off-by: Dhinakaran Pandiyan <[email protected]> --- drivers/gpu/drm/i915/intel_bios.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 82b144c..89a405e 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -1403,6 +1403,7 @@ init_vbt_missing_defaults(struct drm_i915_private *dev_priv) info->supports_dvi = (port != PORT_A && port != PORT_E); info->supports_hdmi = info->supports_dvi; info->supports_dp = (port != PORT_E); + info->supports_edp = (port == PORT_A); } } -- 2.7.4 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
