[Intel-gfx] [RFC 17/33] drm/i915/color: Add color pipeline for SDR planes

[Uma Shankar]

SDR planes provides programmable color hardware blocks for
Pre-CSC and Post-CSC operations. Add a color pipeline to
expose these capabilities.

Co-developed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>
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 | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c
index 8c2a858fc452..09e50659befd 100644
--- a/drivers/gpu/drm/i915/display/intel_color.c
+++ b/drivers/gpu/drm/i915/display/intel_color.c
@@ -3941,6 +3941,23 @@ static const struct drm_color_lut_range xelpd_post_csc_hdr[] = {
 	},
 };
 
+struct drm_color_op color_pipeline_sdr[] = {
+	{
+		.name = DRM_CB_PRE_CSC,
+		.type = CURVE_1D,
+		.blob_id = 0, /* To be updated during plane initialization */
+	},
+	/*
+	 * SDR planes have fixed function CSC capabilities.
+	 * TODO: Add support for it
+	 */
+	{
+		.name = DRM_CB_POST_CSC,
+		.type = CURVE_1D,
+		.blob_id = 0,
+	},
+};
+
 struct drm_color_op color_pipeline_hdr[] = {
 	{
 		.name = DRM_CB_PRE_CSC,
-- 
2.38.1