[PATCH 2/5] drm/i915: Fixes to support DP Compliance EDID tests

Manasi Navare
2016-11-22T21:39:23Z

This patch addresses a few issues from the original patch for
DP Compliance EDID test support submitted by
Todd Previte<todd.previte@gmail.com>

Video Mode requested in the EDID test handler for the EDID Read
test (CTS 4.2.2.3) should be set to PREFERRED as per the CTS spec.

Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
---
drivers/gpu/drm/i915/intel_dp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 69944d1..6693918 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3865,7 +3865,7 @@ static uint8_t intel_dp_autotest_video_pattern(struct intel_dp *intel_dp)

static uint8_t intel_dp_autotest_edid(struct intel_dp *intel_dp)
{
- uint8_t test_result = DP_TEST_NAK;
+ uint8_t test_result = DP_TEST_ACK;
struct intel_connector *intel_connector = intel_dp->attached_connector;
struct drm_connector *connector = &intel_connector->base;

@@ -3900,7 +3900,7 @@ static uint8_t intel_dp_autotest_edid(struct intel_dp *intel_dp)
DRM_DEBUG_KMS("Failed to write EDID checksum\n");

test_result = DP_TEST_ACK | DP_TEST_EDID_CHECKSUM_WRITE;
- intel_dp->compliance_test_data = INTEL_DP_RESOLUTION_STANDARD;
+ intel_dp->compliance_test_data = INTEL_DP_RESOLUTION_PREFERRED;
}

/* Set test active flag here so userspace doesn't interrupt things */
--
1.9.1