diff options
| author | Hugo Hu <hugo.hu@amd.com> | 2019-11-14 00:18:09 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-12-06 00:30:22 +0300 |
| commit | 99218d122a2b329c179cc6917836068da3c3e1ad (patch) | |
| tree | 5cc4e49b54d82f2d9c070ce51c4e1778f725b616 | |
| parent | 8d623f86c07fce9b01e42b503df82bbabfb1621d (diff) | |
| download | linux-99218d122a2b329c179cc6917836068da3c3e1ad.tar.xz | |
drm/amd/display: Save/restore link setting for disable phy when link retraining
[Why]
The link setting will be modify after disable phy
and due to DP Compliance Fails.
[How]
Save and resotre link setting for disable link phy when link retraining.
Signed-off-by: Hugo Hu <hugo.hu@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 5 |
1 files changed, 3 insertions, 2 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 486c14e0cd41..015fa0c52746 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 @@ -2788,9 +2788,9 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd union hpd_irq_data hpd_irq_dpcd_data = { { { {0} } } }; union device_service_irq device_service_clear = { { 0 } }; enum dc_status result; - bool status = false; struct pipe_ctx *pipe_ctx; + struct dc_link_settings previous_link_settings; int i; if (out_link_loss) @@ -2873,9 +2873,10 @@ bool dc_link_handle_hpd_rx_irq(struct dc_link *link, union hpd_irq_data *out_hpd if (pipe_ctx == NULL || pipe_ctx->stream == NULL) return false; + previous_link_settings = link->cur_link_settings; dp_disable_link_phy(link, pipe_ctx->stream->signal); - perform_link_training_with_retries(&link->cur_link_settings, + perform_link_training_with_retries(&previous_link_settings, true, LINK_TRAINING_ATTEMPTS, pipe_ctx, pipe_ctx->stream->signal); |