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drm/amd/display: Do not set DRR on pipe Commit

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[WHY]
Writing to DRR registers such as OTG_V_TOTAL_MIN on the same frame as a
pipe commit can cause underflow.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wesley Chalmers 2022-11-03 22:29:31 -04:00 committed by Alex Deucher
parent 709671ffb1
commit 56574f89db
1 changed files with 0 additions and 3 deletions
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3
drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c
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@ -998,8 +998,5 @@ void dcn30_prepare_bandwidth(struct dc *dc,
dc->clk_mgr->funcs->set_max_memclk(dc->clk_mgr, dc->clk_mgr->bw_params->clk_table.entries[dc->clk_mgr->bw_params->clk_table.num_entries - 1].memclk_mhz);
dcn20_prepare_bandwidth(dc, context);
dc_dmub_srv_p_state_delegate(dc,
context->bw_ctx.bw.dcn.clk.fw_based_mclk_switching, context);
}