drm/amd/display: fix split recout calculation

Recout split rounding code was wrong

Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 a2f9be3..ced339a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -580,14 +580,12 @@ static void calculate_recout(struct pipe_ctx *pipe_ctx, struct view *recout_skip
        if (pipe_ctx->top_pipe && pipe_ctx->top_pipe->plane_state ==
                pipe_ctx->plane_state) {
                if (stream->view_format == VIEW_3D_FORMAT_TOP_AND_BOTTOM) {
-                       pipe_ctx->plane_res.scl_data.recout.height /= 2;
-                       pipe_ctx->plane_res.scl_data.recout.y += pipe_ctx->plane_res.scl_data.recout.height;
                        /* Floor primary pipe, ceil 2ndary pipe */
-                       pipe_ctx->plane_res.scl_data.recout.height += pipe_ctx->plane_res.scl_data.recout.height % 2;
+                       pipe_ctx->plane_res.scl_data.recout.height = (pipe_ctx->plane_res.scl_data.recout.height + 1) / 2;
+                       pipe_ctx->plane_res.scl_data.recout.y += pipe_ctx->plane_res.scl_data.recout.height;
                } else {
-                       pipe_ctx->plane_res.scl_data.recout.width /= 2;
+                       pipe_ctx->plane_res.scl_data.recout.width = (pipe_ctx->plane_res.scl_data.recout.width + 1) / 2;
                        pipe_ctx->plane_res.scl_data.recout.x += pipe_ctx->plane_res.scl_data.recout.width;
-                       pipe_ctx->plane_res.scl_data.recout.width += pipe_ctx->plane_res.scl_data.recout.width % 2;
                }
        } else if (pipe_ctx->bottom_pipe &&
                        pipe_ctx->bottom_pipe->plane_state == pipe_ctx->plane_state) {