Le 18/09/2025 à 02:43, Nícolas F. R. A. Prado a écrit :
Factor out the common code paths from the colorop helpers so they can be
reused by the post-blend colorop helpers.

Signed-off-by: Nícolas F. R. A. Prado <nfrapr...@collabora.com>

Reviewed-by: Louis Chauvet <louis.chau...@bootlin.com>

---
  drivers/gpu/drm/drm_colorop.c | 145 ++++++++++++++++++++++++++++--------------
  1 file changed, 99 insertions(+), 46 deletions(-)

diff --git a/drivers/gpu/drm/drm_colorop.c b/drivers/gpu/drm/drm_colorop.c
index 
1384a259605fa4945aa74402901886d7e1fde0d1..db137169effa6cd9e6d5805f65bdfd1cc6882075
 100644
--- a/drivers/gpu/drm/drm_colorop.c
+++ b/drivers/gpu/drm/drm_colorop.c
@@ -91,8 +91,9 @@ static const struct drm_prop_enum_list 
drm_colorop_lut3d_interpolation_list[] =
/* Init Helpers */ -static int drm_plane_colorop_init(struct drm_device *dev, struct drm_colorop *colorop,
-                           struct drm_plane *plane, enum drm_colorop_type 
type, uint32_t flags)
+static int drm_common_colorop_init(struct drm_device *dev,
+                                  struct drm_colorop *colorop,
+                                  enum drm_colorop_type type, uint32_t flags)
  {
        struct drm_mode_config *config = &dev->mode_config;
        struct drm_property *prop;
@@ -105,7 +106,6 @@ static int drm_plane_colorop_init(struct drm_device *dev, 
struct drm_colorop *co
        colorop->base.properties = &colorop->properties;
        colorop->dev = dev;
        colorop->type = type;
-       colorop->plane = plane;
        colorop->next = NULL;
list_add_tail(&colorop->head, &config->colorop_list);
@@ -154,6 +154,20 @@ static int drm_plane_colorop_init(struct drm_device *dev, 
struct drm_colorop *co
        return ret;
  }
+static int drm_plane_colorop_init(struct drm_device *dev,
+                                 struct drm_colorop *colorop,
+                                 struct drm_plane *plane,
+                                 enum drm_colorop_type type, uint32_t flags)
+{
+       int ret;
+
+       ret = drm_common_colorop_init(dev, colorop, type, flags);
+
+       colorop->plane = plane;
+
+       return ret;
+}
+
  /**
   * drm_colorop_cleanup - Cleanup a drm_colorop object in color_pipeline
   *
@@ -206,31 +220,13 @@ EXPORT_SYMBOL(drm_colorop_pipeline_destroy);
   * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
   * @return zero on success, -E value on failure
   */
-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)
+static int drm_common_colorop_curve_1d_init(struct drm_device *dev, struct 
drm_colorop *colorop,
+                                           u64 supported_tfs, uint32_t flags)
  {
        struct drm_prop_enum_list enum_list[DRM_COLOROP_1D_CURVE_COUNT];
        int i, len;
struct drm_property *prop;
-       int ret;
-
-       if (!supported_tfs) {
-               drm_err(dev,
-                       "No supported TFs for new 1D curve colorop on 
[PLANE:%d:%s]\n",
-                       plane->base.id, plane->name);
-               return -EINVAL;
-       }
-
-       if ((supported_tfs & -BIT(DRM_COLOROP_1D_CURVE_COUNT)) != 0) {
-               drm_err(dev, "Unknown TF provided on [PLANE:%d:%s]\n",
-                       plane->base.id, plane->name);
-               return -EINVAL;
-       }
-
-       ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_CURVE, 
flags);
-       if (ret)
-               return ret;
len = 0;
        for (i = 0; i < DRM_COLOROP_1D_CURVE_COUNT; i++) {
@@ -260,6 +256,41 @@ int drm_plane_colorop_curve_1d_init(struct drm_device 
*dev, struct drm_colorop *
return 0;
  }
+
+static int drm_colorop_has_supported_tf(struct drm_device *dev, struct 
drm_mode_object *obj,
+                                       const char *name, u64 supported_tfs)
+{
+       if (!supported_tfs) {
+               drm_err(dev,
+                       "No supported TFs for new 1D curve colorop on 
[PLANE:%d:%s]\n",
+                       obj->id, name);
+               return -EINVAL;
+       }
+
+       if ((supported_tfs & -BIT(DRM_COLOROP_1D_CURVE_COUNT)) != 0) {
+               drm_err(dev, "Unknown TF provided on [PLANE:%d:%s]\n",
+                       obj->id, name);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+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 ret;
+
+       ret = drm_colorop_has_supported_tf(dev, &plane->base, plane->name, 
supported_tfs);
+       if (ret)
+               return ret;
+
+       ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_CURVE, 
flags);
+       if (ret)
+               return ret;
+
+       return drm_common_colorop_curve_1d_init(dev, colorop, supported_tfs, 
flags);
+}
  EXPORT_SYMBOL(drm_plane_colorop_curve_1d_init);
static int drm_colorop_create_data_prop(struct drm_device *dev, struct drm_colorop *colorop)
@@ -280,29 +311,16 @@ static int drm_colorop_create_data_prop(struct drm_device 
*dev, struct drm_color
        return 0;
  }
-/**
- * drm_plane_colorop_curve_1d_lut_init - Initialize a DRM_COLOROP_1D_LUT
- *
- * @dev: DRM device
- * @colorop: The drm_colorop object to initialize
- * @plane: The associated drm_plane
- * @lut_size: LUT size supported by driver
- * @lut1d_interpolation: 1D LUT interpolation type
- * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
- * @return zero on success, -E value on failure
- */
-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 lut1d_interpolation,
-                                       uint32_t flags)
+static int
+drm_common_colorop_curve_1d_lut_init(struct drm_device *dev,
+                                    struct drm_colorop *colorop,
+                                    uint32_t lut_size,
+                                    enum drm_colorop_lut1d_interpolation_type 
lut1d_interpolation,
+                                    uint32_t flags)
  {
        struct drm_property *prop;
        int ret;
- ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_LUT, flags);
-       if (ret)
-               return ret;
-
        /* initialize 1D LUT only attribute */
        /* LUT size */
        prop = drm_property_create_range(dev, DRM_MODE_PROP_IMMUTABLE | 
DRM_MODE_PROP_ATOMIC,
@@ -334,17 +352,40 @@ int drm_plane_colorop_curve_1d_lut_init(struct drm_device 
*dev, struct drm_color
return 0;
  }
-EXPORT_SYMBOL(drm_plane_colorop_curve_1d_lut_init);
-int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop *colorop,
-                                  struct drm_plane *plane, uint32_t flags)
+/**
+ * drm_plane_colorop_curve_1d_lut_init - Initialize a DRM_COLOROP_1D_LUT
+ *
+ * @dev: DRM device
+ * @colorop: The drm_colorop object to initialize
+ * @plane: The associated drm_plane
+ * @lut_size: LUT size supported by driver
+ * @lut1d_interpolation: 1D LUT interpolation type
+ * @flags: bitmask of misc, see DRM_COLOROP_FLAG_* defines.
+ * @return zero on success, -E value on failure
+ */
+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 
lut1d_interpolation,
+                                   uint32_t flags)
  {
        int ret;
- ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_CTM_3X4, flags);
+       ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_1D_LUT, 
flags);
        if (ret)
                return ret;
+ return drm_common_colorop_curve_1d_lut_init(dev, colorop, lut_size,
+                                                   lut1d_interpolation, flags);
+}
+EXPORT_SYMBOL(drm_plane_colorop_curve_1d_lut_init);
+
+static int drm_common_colorop_ctm_3x4_init(struct drm_device *dev, struct 
drm_colorop *colorop,
+                                          uint32_t flags)
+{
+       int ret;
+
        ret = drm_colorop_create_data_prop(dev, colorop);
        if (ret)
                return ret;
@@ -353,6 +394,18 @@ int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, 
struct drm_colorop *c
return 0;
  }
+
+int drm_plane_colorop_ctm_3x4_init(struct drm_device *dev, struct drm_colorop 
*colorop,
+                                  struct drm_plane *plane, uint32_t flags)
+{
+       int ret;
+
+       ret = drm_plane_colorop_init(dev, colorop, plane, DRM_COLOROP_CTM_3X4, 
flags);
+       if (ret)
+               return ret;
+
+       return drm_common_colorop_ctm_3x4_init(dev, colorop, flags);
+}
  EXPORT_SYMBOL(drm_plane_colorop_ctm_3x4_init);
/**


--
--
Louis Chauvet, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com


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