From: Ovidiu Bunea <ovidiu.bunea@xxxxxxx>
[why]
Doing a mode timing change causes a hang when OTG is not disabled.
[how]
Add link_enc null check in disable_otg_wa to cover this case.
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
Acked-by: Hersen Wu <hersenxs.wu@xxxxxxx>
Signed-off-by: Ovidiu Bunea <ovidiu.bunea@xxxxxxx>
Signed-off-by: Hersen Wu <hersenxs.wu@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
index 085ac191c94f..0fa4fcd00de2 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c
@@ -124,7 +124,8 @@ static void dcn35_disable_otg_wa(struct clk_mgr *clk_mgr_base, struct dc_state *
if (pipe->top_pipe || pipe->prev_odm_pipe)
continue;
- if (pipe->stream && (pipe->stream->dpms_off || dc_is_virtual_signal(pipe->stream->signal))) {
+ if (pipe->stream && (pipe->stream->dpms_off || dc_is_virtual_signal(pipe->stream->signal) ||
+ !pipe->stream->link_enc)) {
struct stream_encoder *stream_enc = pipe->stream_res.stream_enc;
if (disable) {
--
2.25.1
