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From f9cea8683451f972957ed9bfb2ebecb8771397ee Mon Sep 17 00:00:00 2001
From: Vitaly Prosyak <vitaly.prosyak@amd.com>
Date: Fri, 19 Jul 2019 16:07:33 -0500
Subject: [PATCH 3428/4256] drm/amd/display: Check if
set_blank_data_double_buffer exists before call
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>
---
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 8fd2d51477ea..ee553262039f 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
@@ -720,7 +720,8 @@ 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);
--
2.17.1
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