From: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@xxxxxxx>
Dithering needs to be enabled or disabled as requested. If
dc_stream_update->dither_option is non-null, program the FMT blocks.
Signed-off-by: SivapiriyanKumarasamy <sivapiriyan.kumarasamy@xxxxxxx>
Reviewed-by: Anthony Koo <Anthony.Koo@xxxxxxx>
Reviewed-by: Krunoslav Kovac <Krunoslav.Kovac@xxxxxxx>
Acked-by: Leo Li <sunpeng.li@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 8 ++++++++
drivers/gpu/drm/amd/display/dc/dc_stream.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index dffd083..ad67b98 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1483,6 +1483,14 @@ static void commit_planes_do_stream_update(struct dc *dc,
if (stream_update->output_csc_transform)
dc_stream_program_csc_matrix(dc, stream);
+ if (stream_update->dither_option) {
+ resource_build_bit_depth_reduction_params(pipe_ctx->stream,
+ &pipe_ctx->stream->bit_depth_params);
+ pipe_ctx->stream_res.opp->funcs->opp_program_fmt(pipe_ctx->stream_res.opp,
+ &stream->bit_depth_params,
+ &stream->clamping);
+ }
+
/* Full fe update*/
if (update_type == UPDATE_TYPE_FAST)
continue;
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 0c42418..be34d63 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -136,6 +136,7 @@ struct dc_stream_update {
struct colorspace_transform *gamut_remap;
enum dc_color_space *output_color_space;
+ enum dc_dither_option *dither_option;
struct dc_csc_transform *output_csc_transform;
--
2.7.4
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