From: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
[Why]
SMU now respects the PHY refclk disable request from driver.
This causes a hang during hotplug when PHY refclk was disabled
because it's not being re-enabled and the transmitter control
starts on dc_link_detect.
[How]
We normally would re-enable the clk with exit_optimized_pwr_state
but this is only set on DCN21 and DCN301. Set it for dcn31 as well.
This fixes DMCUB timeouts in the PHY.
Fixes: 64b1d0e8d500 ("drm/amd/display: Add DCN3.1 HWSEQ")
Reviewed-by: Eric Yang <Eric.Yang2@xxxxxxx>
Acked-by: Pavle Kotarac <Pavle.Kotarac@xxxxxxx>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
index e175b6cc0125..4e625094026b 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn31/dcn31_init.c
@@ -101,6 +101,7 @@ static const struct hw_sequencer_funcs dcn31_funcs = {
.z10_restore = dcn31_z10_restore,
.z10_save_init = dcn31_z10_save_init,
.set_disp_pattern_generator = dcn30_set_disp_pattern_generator,
+ .exit_optimized_pwr_state = dcn21_exit_optimized_pwr_state,
.update_visual_confirm_color = dcn20_update_visual_confirm_color,
};
--
2.32.0
