Re: [PATCH 01/12] drm/i915: Don't mark eDP encoders as MST capable

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Reviewed-by: Shashank Sharma

Regards
Shashank
On 6/8/2016 4:11 PM, ville.syrjala@xxxxxxxxxxxxxxx wrote:
From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

If we've determined that the encoder is eDP, we shouldn't try to use MST
on it. Or at least the code doesn't seem to expect that since there are
some type==DP checks in the MST code.

Cc: Dave Airlie <airlied@xxxxxxxxxx>
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
  drivers/gpu/drm/i915/intel_dp.c | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index f97cd5305e4c..0ab4f319f88f 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -5528,7 +5528,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
  		goto fail;

  	/* init MST on ports that can support it */
-	if (HAS_DP_MST(dev) &&
+	if (HAS_DP_MST(dev) && !is_edp(intel_dp) &&
  	    (port == PORT_B || port == PORT_C || port == PORT_D))
  		intel_dp_mst_encoder_init(intel_dig_port,
  					  intel_connector->base.base.id);

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