From: Jimmy Kizito <Jimmy.Kizito@xxxxxxx>
[Why & How]
Add support for transmitting training pattern sequences for links whose
encoders have been dynamically assigned.
Signed-off-by: Jimmy Kizito <Jimmy.Kizito@xxxxxxx>
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Stylon Wang <stylon.wang@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index 13c5c4a34a58..f7dfc8fefdfa 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -332,7 +332,16 @@ void dp_set_hw_test_pattern(
uint32_t custom_pattern_size)
{
struct encoder_set_dp_phy_pattern_param pattern_param = {0};
- struct link_encoder *encoder = link->link_enc;
+ struct link_encoder *encoder;
+
+ /* Access link encoder based on whether it is statically
+ * or dynamically assigned to a link.
+ */
+ if (link->is_dig_mapping_flexible &&
+ link->dc->res_pool->funcs->link_encs_assign)
+ encoder = link_enc_cfg_get_link_enc_used_by_link(link->dc->current_state, link);
+ else
+ encoder = link->link_enc;
pattern_param.dp_phy_pattern = test_pattern;
pattern_param.custom_pattern = custom_pattern;
--
2.25.1
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