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Message-Id: <20251223-mtk-post-blend-color-pipeline-v3-10-7d969f9a37a0@collabora.com>
Date: Tue, 23 Dec 2025 15:01:30 -0300
From: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Chun-Kuang Hu <chunkuang.hu@...nel.org>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Louis Chauvet <louis.chauvet@...tlin.com>, 
 Haneen Mohammed <hamohammed.sa@...il.com>, 
 Melissa Wen <melissa.srw@...il.com>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-mediatek@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
 kernel@...labora.com, 
 Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
 Ariel D'Alessandro <ariel.dalessandro@...labora.com>, 
 Harry Wentland <harry.wentland@....com>
Subject: [PATCH v3 10/21] drm/colorop: Introduce colorop helpers for crtc

From: "Nícolas F. R. A. Prado" <nfraprado@...labora.com>

Introduce colorop helper counterparts for post-blend color pipelines
that take a CRTC instead of a plane.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
Co-developed-by: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro@...labora.com>
Reviewed-by: Louis Chauvet <louis.chauvet@...tlin.com>
Reviewed-by: Harry Wentland <harry.wentland@....com>
---
 drivers/gpu/drm/drm_colorop.c | 73 +++++++++++++++++++++++++++++++++++++++++++
 include/drm/drm_colorop.h     |  8 +++++
 2 files changed, 81 insertions(+)

diff --git a/drivers/gpu/drm/drm_colorop.c b/drivers/gpu/drm/drm_colorop.c
index 6a285cdb0a354..4ce93807ea565 100644
--- a/drivers/gpu/drm/drm_colorop.c
+++ b/drivers/gpu/drm/drm_colorop.c
@@ -170,6 +170,20 @@ static int drm_plane_colorop_init(struct drm_device *dev,
 	return ret;
 }
 
+static int drm_crtc_colorop_init(struct drm_device *dev,
+				 struct drm_colorop *colorop,
+				 struct drm_crtc *crtc,
+				 enum drm_colorop_type type, uint32_t flags)
+{
+	int ret;
+
+	ret = drm_common_colorop_init(dev, colorop, type, flags);
+
+	colorop->crtc = crtc;
+
+	return ret;
+}
+
 /**
  * drm_colorop_cleanup - Cleanup a drm_colorop object in color_pipeline
  *
@@ -295,6 +309,23 @@ int drm_plane_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *
 }
 EXPORT_SYMBOL(drm_plane_colorop_curve_1d_init);
 
+int drm_crtc_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *colorop,
+				   struct drm_crtc *crtc, u64 supported_tfs, uint32_t flags)
+{
+	int ret;
+
+	ret = drm_colorop_has_supported_tf(dev, &crtc->base, crtc->name, supported_tfs);
+	if (ret)
+		return ret;
+
+	ret = drm_crtc_colorop_init(dev, colorop, crtc, DRM_COLOROP_1D_CURVE, flags);
+	if (ret)
+		return ret;
+
+	return drm_common_colorop_curve_1d_init(dev, colorop, supported_tfs, flags);
+}
+EXPORT_SYMBOL(drm_crtc_colorop_curve_1d_init);
+
 static int drm_colorop_create_data_prop(struct drm_device *dev, struct drm_colorop *colorop)
 {
 	struct drm_property *prop;
@@ -383,6 +414,35 @@ drm_plane_colorop_curve_1d_lut_init(struct drm_device *dev, struct drm_colorop *
 }
 EXPORT_SYMBOL(drm_plane_colorop_curve_1d_lut_init);
 
+/**
+ * drm_crtc_colorop_curve_1d_lut_init - Initialize a DRM_COLOROP_1D_LUT
+ *
+ * @dev: DRM device
+ * @colorop: The drm_colorop object to initialize
+ * @crtc: The associated drm_crtc
+ * @lut_size: LUT size supported by driver
+ * @interpolation: 1D LUT interpolation type
+ * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
+ * @return zero on success, -E value on failure
+ */
+int
+drm_crtc_colorop_curve_1d_lut_init(struct drm_device *dev,
+				   struct drm_colorop *colorop,
+				   struct drm_crtc *crtc, uint32_t lut_size,
+				   enum drm_colorop_lut1d_interpolation_type interpolation,
+				   uint32_t flags)
+{
+	int ret;
+
+	ret = drm_crtc_colorop_init(dev, colorop, crtc, DRM_COLOROP_1D_LUT, flags);
+	if (ret)
+		return ret;
+
+	return drm_common_colorop_curve_1d_lut_init(dev, colorop, lut_size,
+						    interpolation, flags);
+}
+EXPORT_SYMBOL(drm_crtc_colorop_curve_1d_lut_init);
+
 static int drm_common_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
 					   uint32_t flags)
 {
@@ -410,6 +470,19 @@ int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *c
 }
 EXPORT_SYMBOL(drm_plane_colorop_ctm_3x4_init);
 
+int drm_crtc_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
+				   struct drm_crtc *crtc, uint32_t flags)
+{
+	int ret;
+
+	ret = drm_crtc_colorop_init(dev, colorop, crtc, DRM_COLOROP_CTM_3X4, flags);
+	if (ret)
+		return ret;
+
+	return drm_common_colorop_ctm_3x4_init(dev, colorop, flags);
+}
+EXPORT_SYMBOL(drm_crtc_colorop_ctm_3x4_init);
+
 /**
  * drm_plane_colorop_mult_init - Initialize a DRM_COLOROP_MULTIPLIER
  *
diff --git a/include/drm/drm_colorop.h b/include/drm/drm_colorop.h
index 49d342b7f8b0b..a1f81fa96f66b 100644
--- a/include/drm/drm_colorop.h
+++ b/include/drm/drm_colorop.h
@@ -400,14 +400,22 @@ static inline struct drm_colorop *drm_colorop_find(struct drm_device *dev,
 void drm_colorop_pipeline_destroy(struct drm_device *dev);
 void drm_colorop_cleanup(struct drm_colorop *colorop);
 
+int drm_crtc_colorop_curve_1d_lut_init(struct drm_device *dev, struct drm_colorop *colorop,
+				       struct drm_crtc *crtc, uint32_t lut_size,
+				       enum drm_colorop_lut1d_interpolation_type interpolation,
+				       uint32_t flags);
 int drm_plane_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *colorop,
 				    struct drm_plane *plane, u64 supported_tfs, uint32_t flags);
+int drm_crtc_colorop_curve_1d_init(struct drm_device *dev, struct drm_colorop *colorop,
+				   struct drm_crtc *crtc, u64 supported_tfs, uint32_t flags);
 int drm_plane_colorop_curve_1d_lut_init(struct drm_device *dev, struct drm_colorop *colorop,
 					struct drm_plane *plane, uint32_t lut_size,
 					enum drm_colorop_lut1d_interpolation_type interpolation,
 					uint32_t flags);
 int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
 				   struct drm_plane *plane, uint32_t flags);
+int drm_crtc_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
+				   struct drm_crtc *crtc, uint32_t flags);
 int drm_plane_colorop_mult_init(struct drm_device *dev, struct drm_colorop *colorop,
 				struct drm_plane *plane, uint32_t flags);
 int drm_plane_colorop_3dlut_init(struct drm_device *dev, struct drm_colorop *colorop,

-- 
2.51.0

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