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| author | Aric Cyr <aric.cyr@amd.com> | 2020-07-22 22:40:06 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-08-06 23:42:52 +0300 |
| commit | 76d5ef4ff10bc64f84a4b301cf8c25229048edd8 (patch) | |
| tree | 2b3bf6e88bd428dbc5516d581d507acc1927453b /drivers/gpu/drm/amd | |
| parent | b5fe6aa2b02cdfee75f747c68f3d303fddd09af9 (diff) | |
| download | linux-76d5ef4ff10bc64f84a4b301cf8c25229048edd8.tar.xz | |
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.c | 13 |
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 || |