drm/amd/display: Use two pixel per container for k1/k2 div

Currently, we check if pixel_encoding is equal to
PIXEL_ENCODING_YCBCR422 to get the k1/k2 div parameters. This commit
changes this logic slightly by checking if two pixels per container are
used.
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c

@@ -1084,6 +1084,7 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign
 	struct dc_stream_state *stream = pipe_ctx->stream;
 	unsigned int odm_combine_factor = 0;
 	struct dc *dc = pipe_ctx->stream->ctx->dc;
+	bool two_pix_per_container = optc2_is_two_pixels_per_containter(&stream->timing);
 
 	odm_combine_factor = get_odm_config(pipe_ctx, NULL);
 
@@ -1096,13 +1097,12 @@ unsigned int dcn32_calculate_dccg_k1_k2_values(struct pipe_ctx *pipe_ctx, unsign
 		else
 			*k2_div = PIXEL_RATE_DIV_BY_4;
 	} else if (dc_is_dp_signal(pipe_ctx->stream->signal)) {
-		if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR420) {
+		if (two_pix_per_container) {
 			*k1_div = PIXEL_RATE_DIV_BY_1;
 			*k2_div = PIXEL_RATE_DIV_BY_2;
-		} else if (stream->timing.pixel_encoding == PIXEL_ENCODING_YCBCR422) {
-			*k1_div = PIXEL_RATE_DIV_BY_2;
-			*k2_div = PIXEL_RATE_DIV_BY_2;
 		} else {
+			*k1_div = PIXEL_RATE_DIV_BY_1;
+			*k2_div = PIXEL_RATE_DIV_BY_4;
 			if ((odm_combine_factor == 2) || dc->debug.enable_dp_dig_pixel_rate_div_policy)
 				*k2_div = PIXEL_RATE_DIV_BY_2;
 		}