diff options
| author | Wesley Chalmers <Wesley.Chalmers@amd.com> | 2022-11-04 05:29:31 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-22 15:38:04 +0300 |
| commit | 3c20a098b507020936e02a98f4fbb924deeef44b (patch) | |
| tree | c053b419459b5e4c713705d92da35b3b70e45dd1 /drivers/gpu/drm | |
| parent | fd5fc6bde5197d1f95fcc2551ce307d08870a1b5 (diff) | |
| download | linux-3c20a098b507020936e02a98f4fbb924deeef44b.tar.xz | |
drm/amd/display: Do not set DRR on pipe Commit
commit 56574f89dbd84004c3fd6485bcaafb5aa9b8be14 upstream.
[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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c index 8c5045711264..c20e9f76f021 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn30/dcn30_hwseq.c @@ -992,8 +992,5 @@ 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); } |