drm/i915/dp: actually nack test request
... like the comment says. No idea whether this has any effect, but
I guess it's better to not lie to the display by acking a test request
and never following through with it. This goes back to the commit that
originally introduced this code:
commit a60f0e38d72a5e24085d6e7e27a4cadc20ae268a
Author: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Thu Oct 20 15:09:17 2011 -0700
drm/i915: add DP test request handling
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Meh'ed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index e0b91cb..fda207e 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2074,7 +2074,7 @@
intel_dp_handle_test_request(struct intel_dp *intel_dp)
{
/* NAK by default */
- intel_dp_aux_native_write_1(intel_dp, DP_TEST_RESPONSE, DP_TEST_ACK);
+ intel_dp_aux_native_write_1(intel_dp, DP_TEST_RESPONSE, DP_TEST_NAK);
}
/*