[PATCH] drm/i915/dp: Test patch for https://gitlab.freedesktop.org/drm/intel/issues/585

[Manasi Navare]

Signed-off-by: Manasi Navare <manasi.d.navare at intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 991f343579ef..1e19b90af3dd 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1986,6 +1986,9 @@ intel_dp_compute_link_config_wide(struct intel_dp *intel_dp,
 	int bpp, clock, lane_count;
 	int mode_rate, link_clock, link_avail;
 
+	// Test for Issue 585
+	limits->min_lane_count = limits->max_lane_count;
+
 	for (bpp = limits->max_bpp; bpp >= limits->min_bpp; bpp -= 2 * 3) {
 		int output_bpp = intel_dp_output_bpp(pipe_config, bpp);
 
@@ -5660,6 +5663,9 @@ intel_dp_detect(struct drm_connector *connector,
 		      connector->base.id, connector->name);
 	WARN_ON(!drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex));
 
+	// Test for Issue 585
+	intel_dp->link_trained = false;
+
 	/* Can't disconnect eDP */
 	if (intel_dp_is_edp(intel_dp))
 		status = edp_detect(intel_dp);
@@ -7468,6 +7474,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port,
 	intel_dp_set_source_rates(intel_dp);
 
 	intel_dp->reset_link_params = true;
+	intel_dp->link_trained =  false;
 	intel_dp->pps_pipe = INVALID_PIPE;
 	intel_dp->active_pipe = INVALID_PIPE;
 
-- 
2.19.1