[PATCH 6.18 146/752] drm/amd/display: only power down dig on phy endpoints

Sasha Levin
2026-02-28T17:50:11Z

From: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>

[ Upstream commit 0839d8d24e6f1fc2587c4a976f44da9fa69ae3d0 ]

This avoids any issues with dpia endpoints

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Signed-off-by: Matthew Stewart <matthew.stewart2@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
index 483217a91029a..d4a0961f6b516 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c
@@ -284,6 +284,8 @@ void dcn401_init_hw(struct dc *dc)
for (i = 0; i < dc->link_count; i++) {
struct dc_link *link = dc->links[i];

+ if (link->ep_type != DISPLAY_ENDPOINT_PHY)
+ continue;
if (link->link_enc->funcs->is_dig_enabled &&
link->link_enc->funcs->is_dig_enabled(link->link_enc) &&
hws->funcs.power_down) {
--
2.51.0