[v4 13/23] drm/i915/color: Add framework to set colorop

[Uma Shankar <uma.shankar@intel.com>]

From: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>

Add infrastructure to set colorop. We iterate through all the color ops
in a selected COLOR PIPELINE and set them one by one.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Signed-off-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 31 ++++++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_color.h |  3 +++
 2 files changed, 34 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index ebd202c91eb0..cf508094a038 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -4110,6 +4110,37 @@ struct intel_plane_colorop *intel_plane_colorop_create(enum intel_color_block id
 	return colorop;
 }
 
+static void apply_colorop(const struct drm_plane_state *plane_state,
+			  struct drm_colorop *colorop,
+			  u32 *plane_color_ctl)
+{
+}
+
+void intel_program_pipeline(const struct drm_plane_state *plane_state, u32 *plane_color_ctl)
+{
+	struct drm_colorop *colorop;
+
+	colorop = plane_state->color_pipeline;
+
+	while (colorop) {
+		struct drm_colorop_state *colorop_state;
+
+		if (!colorop)
+			return;
+
+		/* TODO this is probably wrong */
+		colorop_state = colorop->state;
+
+		if (!colorop_state)
+			return;
+
+		if (!colorop_state->bypass)
+			apply_colorop(plane_state, colorop, plane_color_ctl);
+
+		colorop = colorop->next;
+	}
+}
+
 int intel_plane_tf_pipeline_init(struct drm_plane *plane, struct drm_prop_enum_list *list)
 {
 	struct intel_plane_colorop *colorop;
diff --git a/drivers/gpu/drm/i915/display/intel_color.h b/drivers/gpu/drm/i915/display/intel_color.h
index 8a3bf5b79e39..7be2453eee0a 100644
--- a/drivers/gpu/drm/i915/display/intel_color.h
+++ b/drivers/gpu/drm/i915/display/intel_color.h
@@ -15,6 +15,7 @@ struct intel_display;
 struct intel_dsb;
 struct drm_property_blob;
 struct drm_plane;
+struct drm_plane_state;
 struct drm_prop_enum_list;
 enum intel_color_block;
 
@@ -47,5 +48,7 @@ struct intel_plane_colorop *intel_colorop_alloc(void);
 struct intel_plane_colorop *intel_plane_colorop_create(enum intel_color_block id);
 int intel_plane_tf_pipeline_init(struct drm_plane *plane, struct drm_prop_enum_list *list);
 int intel_plane_color_init(struct drm_plane *plane);
+void intel_program_pipeline(const struct drm_plane_state *plane_state,
+			    u32 *plane_color_ctl);
 
 #endif /* __INTEL_COLOR_H__ */
-- 
2.42.0