[Why&How]
If the timing generator isnt running, it does not make sense to trigger
a sync on the corresponding OTG. Check this condition before starting.
Otherwise, this will cause error like:
*ERROR* GSL: Timeout on reset trigger!
Fixes: 8c7924bdb0fe ("drm/amd/display: Disable phantom OTG after enable for plane disable")
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 587b04b8712d..0db02e76dcc5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -2252,6 +2252,12 @@ void dcn10_enable_timing_synchronization(
opp = grouped_pipes[i]->stream_res.opp;
tg = grouped_pipes[i]->stream_res.tg;
tg->funcs->get_otg_active_size(tg, &width, &height);
+
+ if (!tg->funcs->is_tg_enabled(tg)) {
+ DC_SYNC_INFO("Skipping timing sync on disabled OTG\n");
+ return;
+ }
+
if (opp->funcs->opp_program_dpg_dimensions)
opp->funcs->opp_program_dpg_dimensions(opp, width, 2*(height) + 1);
}
--
2.38.1
