This patch addresses a few issues from the original patch for
DP Compliance EDID test support submitted by
Todd Previte<todd.prev...@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.
v2:
* Added read debugfs data from test_data.edid if its EDID test (Jani NIkula)
Signed-off-by: Manasi Navare <manasi.d.nav...@intel.com>
Cc: Jani Nikula <jani.nik...@linux.intel.com>
Cc: Daniel Vetter <daniel.vet...@intel.com>
Cc: Ville Syrjala <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/i915/i915_debugfs.c | 5 ++++-
drivers/gpu/drm/i915/intel_dp.c | 4 ++--
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 2c9b056..b2ff532 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -4536,7 +4536,10 @@ static int i915_displayport_test_data_show(struct
seq_file *m, void *data)
if (connector->status == connector_status_connected &&
connector->encoder != NULL) {
intel_dp = enc_to_intel_dp(connector->encoder);
- seq_printf(m, "%lx",
intel_dp->compliance.test_data.edid);
+ if (intel_dp->compliance.test_type ==
+ DP_TEST_LINK_EDID_READ)
+ seq_printf(m, "%lx",
+ intel_dp->compliance.test_data.edid);
} else
seq_puts(m, "0");
}
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index bbf8cdc..fb6f9e5 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -3864,7 +3864,7 @@ 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;
@@ -3899,7 +3899,7 @@ 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.edid =
INTEL_DP_RESOLUTION_STANDARD;
+ intel_dp->compliance.test_data.edid =
INTEL_DP_RESOLUTION_PREFERRED;
}
/* Set test active flag here so userspace doesn't interrupt things */
--
1.9.1
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