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drm/amd/display: Block timing sync for different output formats in pmo

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[WHY & HOW]
If the output format is different for HDMI TMDS signals, they are not
synchronizable.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Dillon Varone
2024-08-26 17:08:33 -04:00
committed by Alex Deucher
parent f57b77d667
commit 0765b2afc1
1 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
+5 -3
View File
@@ -940,9 +940,11 @@ static void build_synchronized_timing_groups(
/* find synchronizable timing groups */
for (j = i + 1; j < display_config->display_config.num_streams; j++) {
if (memcmp(master_timing,
&display_config->display_config.stream_descriptors[j].timing,
sizeof(struct dml2_timing_cfg)) == 0 &&
display_config->display_config.stream_descriptors[i].output.output_encoder == display_config->display_config.stream_descriptors[j].output.output_encoder) {
&display_config->display_config.stream_descriptors[j].timing,
sizeof(struct dml2_timing_cfg)) == 0 &&
display_config->display_config.stream_descriptors[i].output.output_encoder == display_config->display_config.stream_descriptors[j].output.output_encoder &&
(display_config->display_config.stream_descriptors[i].output.output_encoder != dml2_hdmi || //hdmi requires formats match
display_config->display_config.stream_descriptors[i].output.output_format == display_config->display_config.stream_descriptors[j].output.output_format)) {
set_bit_in_bitfield(&pmo->scratch.pmo_dcn4.synchronized_timing_group_masks[timing_group_idx], j);
set_bit_in_bitfield(&stream_mapped_mask, j);
}