[PATCH 20/28] drm/i915/color: Add callbacks to set plane CTM

[Uma Shankar]

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

Add callback to intel color functions for setting plane CTM.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>
Signed-off-by: Uma Shankar <uma.shankar at intel.com>
---
 drivers/gpu/drm/i915/display/intel_color.c | 22 ++++++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_color.h |  2 ++
 2 files changed, 24 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 06268e89125e..8dc72ad25700 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -81,6 +81,10 @@ struct intel_color_funcs {
 	 * Read config other than LUTs and CSCs, before them. Optional.
 	 */
 	void (*get_config)(struct intel_crtc_state *crtc_state);
+
+	/* Plane CSC*/
+	void (*load_plane_csc_matrix)(const struct drm_plane_state *plane_state,
+				      const struct drm_property_blob *blob);
 };
 
 #define CTM_COEFF_SIGN	(1ULL << 63)
@@ -3684,6 +3688,15 @@ static void icl_read_luts(struct intel_crtc_state *crtc_state)
 	}
 }
 
+void intel_color_load_plane_csc_matrix(const struct drm_plane_state *plane_state,
+				       const struct drm_property_blob *blob)
+{
+	struct drm_i915_private *i915 = to_i915(plane_state->plane->dev);
+
+	if (i915->display.funcs.color->load_plane_csc_matrix)
+		i915->display.funcs.color->load_plane_csc_matrix(plane_state, blob);
+}
+
 static const struct intel_color_funcs chv_color_funcs = {
 	.color_check = chv_color_check,
 	.color_commit_arm = i9xx_color_commit_arm,
@@ -3953,6 +3966,15 @@ static void apply_colorop(const struct drm_plane_state *plane_state,
 			  struct drm_colorop *colorop,
 			  u32 *plane_color_ctl)
 {
+	struct drm_colorop_state *state = colorop->state;
+	struct intel_plane_colorop *intel_colorop = to_intel_plane_colorop(colorop);
+
+	if (colorop->type == DRM_COLOROP_CTM_3X3) {
+		/* TODO: use intel_color_op state data */
+		(*plane_color_ctl) |= PLANE_COLOR_PLANE_CSC_ENABLE;
+		if (state->data && intel_colorop->id == CB_PLANE_CSC)
+			intel_color_load_plane_csc_matrix(plane_state, state->data);
+	}
 }
 
 void intel_program_pipeline(const struct drm_plane_state *plane_state, u32 *plane_color_ctl)
diff --git a/drivers/gpu/drm/i915/display/intel_color.h b/drivers/gpu/drm/i915/display/intel_color.h
index bde880370ecc..3f1466f88c11 100644
--- a/drivers/gpu/drm/i915/display/intel_color.h
+++ b/drivers/gpu/drm/i915/display/intel_color.h
@@ -43,5 +43,7 @@ int intel_plane_tf_pipeline_init(struct drm_plane *plane, struct drm_prop_enum_l
 int intel_plane_color_init(struct drm_plane *plane);
 void intel_program_pipeline(const struct drm_plane_state *plane_state,
 			    u32 *plane_color_ctl);
+void intel_color_load_plane_csc_matrix(const struct drm_plane_state *plane_state,
+				       const struct drm_property_blob *blob);
 
 #endif /* __INTEL_COLOR_H__ */
-- 
2.42.0