Should prove helpful in debugging some DP branch devices.
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index a293523..af16d5b 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2280,6 +2280,11 @@ intel_dp_get_dpcd(struct intel_dp *intel_dp)
DP_MAX_DOWNSTREAM_PORTS) == 0)
return false; /* downstream port status fetch failed */
+ hex_dump_to_buffer(intel_dp->downstream_ports,
+ sizeof(intel_dp->downstream_ports),
+ 32, 1, dpcd_hex_dump, sizeof(dpcd_hex_dump), false);
+ DRM_DEBUG_KMS("DPCD Downstream Ports: %s\n", dpcd_hex_dump);
+
return true;
}
--
1.7.9.5
