From 90830e840e39df36e86dae17b41b501bc93dba49 Mon Sep 17 00:00:00 2001
From: Vitaly Prosyak <vitaly.prosyak@amd.com>
Date: Fri, 19 Jul 2019 16:07:33 -0500
Subject: drm/amd/display: Check if set_blank_data_double_buffer exists before
call
Git-commit: 90830e840e39df36e86dae17b41b501bc93dba49
Patch-mainline: v5.4-rc1
References: bsc#1152489
Not all ASIC types have this function implemented - check before
calling.
Signed-off-by: Vitaly Prosyak <vitaly.prosyak@amd.com>
Reviewed-by: Julian Parkin <jparkin@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
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 06d7bab550e1..5527717df3df 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
@@ -721,7 +721,8 @@ static void false_optc_underflow_wa(
dc->hwss.wait_for_mpcc_disconnect(dc, dc->res_pool, old_pipe_ctx);
}
- tg->funcs->set_blank_data_double_buffer(tg, true);
+ if (tg->funcs->set_blank_data_double_buffer)
+ tg->funcs->set_blank_data_double_buffer(tg, true);
if (tg->funcs->is_optc_underflow_occurred(tg) && !underflow)
tg->funcs->clear_optc_underflow(tg);
--
2.28.0