Revert "drm/amd/display: Add left edge pixel for YCbCr422/420 + ODM pipe split"

[Why/How]
A regression was identified with the change to add left edge pixel for
YCbCr422/420 + ODM combine cases.

This reverts commit 288c0254a0b0c9980dba9df7d5afadf27280b99c

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Martin Leung <martin.leung@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 0 insertions, 37 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index 96ea283bd169..1b7765bc5e5e 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -822,16 +822,6 @@ static struct rect calculate_odm_slice_in_timing_active(struct pipe_ctx *pipe_ct
 			stream->timing.v_border_bottom +
 			stream->timing.v_border_top;
 
-	/* Recout for ODM slices after the first slice need one extra left edge pixel
-	 * for 3-tap chroma subsampling.
-	 */
-	if (odm_slice_idx > 0 &&
-			(pipe_ctx->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
-				pipe_ctx->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420)) {
-		odm_rec.x -= 1;
-		odm_rec.width += 1;
-	}
-
 	return odm_rec;
 }
 
@@ -1448,7 +1438,6 @@ void resource_build_test_pattern_params(struct resource_context *res_ctx,
 	enum controller_dp_test_pattern controller_test_pattern;
 	enum controller_dp_color_space controller_color_space;
 	enum dc_color_depth color_depth = otg_master->stream->timing.display_color_depth;
-	enum dc_pixel_encoding pixel_encoding = otg_master->stream->timing.pixel_encoding;
 	int h_active = otg_master->stream->timing.h_addressable +
 		otg_master->stream->timing.h_border_left +
 		otg_master->stream->timing.h_border_right;
@@ -1480,36 +1469,10 @@ void resource_build_test_pattern_params(struct resource_context *res_ctx,
 		else
 			params->width = last_odm_slice_width;
 
-		/* Extra left edge pixel is required for 3-tap chroma subsampling. */
-		if (i != 0 && (pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
-				pixel_encoding == PIXEL_ENCODING_YCBCR420)) {
-			params->offset -= 1;
-			params->width += 1;
-		}
-
 		offset += odm_slice_width;
 	}
 }
 
-void resource_build_subsampling_params(struct resource_context *res_ctx,
-	struct pipe_ctx *otg_master)
-{
-	struct pipe_ctx *opp_heads[MAX_PIPES];
-	int odm_cnt = 1;
-	int i;
-
-	odm_cnt = resource_get_opp_heads_for_otg_master(otg_master, res_ctx, opp_heads);
-
-	/* For ODM slices after the first slice, extra left edge pixel is required
-	 * for 3-tap chroma subsampling.
-	 */
-	if (otg_master->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422 ||
-			otg_master->stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) {
-		for (i = 0; i < odm_cnt; i++)
-			opp_heads[i]->stream_res.left_edge_extra_pixel = (i == 0) ? false : true;
-	}
-}
-
 bool resource_build_scaling_params(struct pipe_ctx *pipe_ctx)
 {
 	const struct dc_plane_state *plane_state = pipe_ctx->plane_state;