From: Wesley Chalmers <wesley.chalm...@amd.com>
[WHY]
If no repeaters are found, we do not need or want to attempt to
link-train repeaters, as this could cause bugs.
Signed-off-by: Wesley Chalmers <wesley.chalm...@amd.com>
Acked-by: Bindu Ramamurthy <bindu...@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 2 ++
1 file changed, 2 insertions(+)
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 9d6a8e728317..e6f8f3c255bc 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
@@ -3582,6 +3582,8 @@ static bool retrieve_link_cap(struct dc_link *link)
link->dpcd_caps.lttpr_caps.revision.raw >=
0x14);
if (is_lttpr_present)
CONN_DATA_DETECT(link, lttpr_dpcd_data,
sizeof(lttpr_dpcd_data), "LTTPR Caps: ");
+ else
+ link->lttpr_mode = LTTPR_MODE_NON_LTTPR;
}
if (!is_lttpr_present)
--
2.25.1
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