From: Ovidiu Bunea <ovidiu.bu...@amd.com> [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.kazlaus...@amd.com> Acked-by: Hersen Wu <hersenxs...@amd.com> Signed-off-by: Ovidiu Bunea <ovidiu.bu...@amd.com> Signed-off-by: Hersen Wu <hersenxs...@amd.com> --- 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