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drm/amd/display: Calculate scaling ratios on every medium/full update 

[ Upstream commit 3bae20137c ]

[Why]
If a plane isn't being actively enabled or disabled then DC won't
always recalculate scaling rects and ratios for the primary plane.

This results in only a partial or corrupted rect being displayed on
the screen instead of scaling to fit the screen.

[How]
Add back the logic to recalculate the scaling rects into
dc_commit_updates_for_stream since this is the expected place to
do it in DC.

This was previously removed a few years ago to fix an underscan issue
but underscan is still functional now with this change - and it should
be, since this is only updating to the latest plane state getting passed
in.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Nicholas Kazlauskas 2020-04-05 16:40:57 -04:00 committed by Greg Kroah-Hartman
parent 16c370534d
commit 632d9736d2
1 changed files with 12 additions and 1 deletions
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13
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -2154,7 +2154,7 @@ void dc_commit_updates_for_stream(struct dc *dc,
enum surface_update_type update_type;
struct dc_state *context;
struct dc_context *dc_ctx = dc->ctx;
int i;
int i, j;
stream_status = dc_stream_get_status(stream);
context = dc->current_state;
@ -2192,6 +2192,17 @@ void dc_commit_updates_for_stream(struct dc *dc,
copy_surface_update_to_plane(surface, &srf_updates[i]);
if (update_type >= UPDATE_TYPE_MED) {
for (j = 0; j < dc->res_pool->pipe_count; j++) {
struct pipe_ctx *pipe_ctx =
&context->res_ctx.pipe_ctx[j];
if (pipe_ctx->plane_state != surface)
continue;
resource_build_scaling_params(pipe_ctx);
}
}
}
copy_stream_update_to_stream(dc, context, stream, stream_update);