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authorAric Cyr <aric.cyr@amd.com>2020-07-22 15:40:06 -0400
committerAlex Deucher <alexander.deucher@amd.com>2020-08-06 16:42:52 -0400
commit76d5ef4ff10bc64f84a4b301cf8c25229048edd8 (patch)
tree2b3bf6e88bd428dbc5516d581d507acc1927453b /drivers/gpu/drm/amd
parentb5fe6aa2b02cdfee75f747c68f3d303fddd09af9 (diff)
drm/amd/display: Fix DP Compliance tests 4.3.2.1 and 4.3.2.2
[Why] Test expects that we also read HPD_IRQ_VECTOR when checking for symbol loss as well lane status. [How] Read bytes 0x200-0x205 instead of just 0x202-0x205 Signed-off-by: Aric Cyr <aric.cyr@amd.com> Reviewed-by: Jun Lei <Jun.Lei@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 1a3dbed3becb..d7d2dcd49c06 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1138,23 +1138,22 @@ static enum link_training_result check_link_loss_status(
const struct link_training_settings *link_training_setting)
{
enum link_training_result status = LINK_TRAINING_SUCCESS;
- unsigned int lane01_status_address = DP_LANE0_1_STATUS;
union lane_status lane_status;
- uint8_t dpcd_buf[4] = {0};
+ uint8_t dpcd_buf[6] = {0};
uint32_t lane;
core_link_read_dpcd(
- link,
- lane01_status_address,
- (uint8_t *)(dpcd_buf),
- sizeof(dpcd_buf));
+ link,
+ DP_SINK_COUNT,
+ (uint8_t *)(dpcd_buf),
+ sizeof(dpcd_buf));
/*parse lane status*/
for (lane = 0; lane < link->cur_link_settings.lane_count; lane++) {
/*
* check lanes status
*/
- lane_status.raw = get_nibble_at_index(&dpcd_buf[0], lane);
+ lane_status.raw = get_nibble_at_index(&dpcd_buf[2], lane);
if (!lane_status.bits.CHANNEL_EQ_DONE_0 ||
!lane_status.bits.CR_DONE_0 ||