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drm/amd/display: Populate invalid split index to be 0xF

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[why]
There exists scenarios where the split index for subvp can be
pipe index 0. The assumption in FW is that the split index
won't be 0 but this is incorrect.

[how]
Instead populate non-split cases to be 0xF to differentiate
between split and non-split.

Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2024-01-19 17:20:21 -05:00 committed by Alex Deucher
parent 4ba9ca63e6
commit b26b943a8d
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c
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@ -780,7 +780,7 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc,
} else if (subvp_pipe->next_odm_pipe) {
pipe_data->pipe_config.subvp_data.main_split_pipe_index = subvp_pipe->next_odm_pipe->pipe_idx;
} else {
pipe_data->pipe_config.subvp_data.main_split_pipe_index = 0;
pipe_data->pipe_config.subvp_data.main_split_pipe_index = 0xF;
}
// Find phantom pipe index based on phantom stream
@ -795,7 +795,7 @@ static void populate_subvp_cmd_pipe_info(struct dc *dc,
} else if (phantom_pipe->next_odm_pipe) {
pipe_data->pipe_config.subvp_data.phantom_split_pipe_index = phantom_pipe->next_odm_pipe->plane_res.hubp->inst;
} else {
pipe_data->pipe_config.subvp_data.phantom_split_pipe_index = 0;
pipe_data->pipe_config.subvp_data.phantom_split_pipe_index = 0xF;
}
break;
}