[PATCH 02/25] drm/amd/display: Fix missing hwss function for dce

[sunpeng.li at amd.com]

From: Joshua Aberback <joshua.aberback at amd.com>

[Why]
The driver will crash on dce hardware due to a null function pointer.

[How]
- bring back "program_csc_matrix" functionality as "program_output_csc" for
dce110
- dce110 doesn't use the "opp_id" parameter, so use 0 when there's no hubp

Signed-off-by: Joshua Aberback <joshua.aberback at amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo at amd.com>
Acked-by: Jun Lei <Jun.Lei at amd.com>
Acked-by: Leo Li <sunpeng.li at amd.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c           |  2 +-
 .../amd/display/dc/dce110/dce110_hw_sequencer.c    | 23 ++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index af907d5..c94bc40 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -451,7 +451,7 @@ bool dc_stream_program_csc_matrix(struct dc *dc, struct dc_stream_state *stream)
 					pipes,
 					stream->output_color_space,
 					stream->csc_color_matrix.matrix,
-					pipes->plane_res.hubp->opp_id);
+					pipes->plane_res.hubp ? pipes->plane_res.hubp->opp_id : 0);
 			ret = true;
 		}
 	}
diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 8e961e6..602a41d 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -2616,6 +2616,28 @@ static void dce110_wait_for_mpcc_disconnect(
 	/* do nothing*/
 }
 
+static void program_output_csc(struct dc *dc,
+		struct pipe_ctx *pipe_ctx,
+		enum dc_color_space colorspace,
+		uint16_t *matrix,
+		int opp_id)
+{
+	int i;
+	struct out_csc_color_matrix tbl_entry;
+
+	if (pipe_ctx->stream->csc_color_matrix.enable_adjustment == true) {
+		enum dc_color_space color_space = pipe_ctx->stream->output_color_space;
+
+		for (i = 0; i < 12; i++)
+			tbl_entry.regval[i] = pipe_ctx->stream->csc_color_matrix.matrix[i];
+
+		tbl_entry.color_space = color_space;
+
+		pipe_ctx->plane_res.xfm->funcs->opp_set_csc_adjustment(
+				pipe_ctx->plane_res.xfm, &tbl_entry);
+	}
+}
+
 void dce110_set_cursor_position(struct pipe_ctx *pipe_ctx)
 {
 	struct dc_cursor_position pos_cpy = pipe_ctx->stream->cursor_position;
@@ -2666,6 +2688,7 @@ void dce110_set_cursor_attribute(struct pipe_ctx *pipe_ctx)
 
 static const struct hw_sequencer_funcs dce110_funcs = {
 	.program_gamut_remap = program_gamut_remap,
+	.program_output_csc = program_output_csc,
 	.init_hw = init_hw,
 	.apply_ctx_to_hw = dce110_apply_ctx_to_hw,
 	.apply_ctx_for_surface = dce110_apply_ctx_for_surface,
-- 
2.7.4