[PATCH i-g-t 1/6] include/drm-uapi: Add DRM_COLOROP_FIXED_MATRIX definition

Add DRM_COLOROP_FIXED_MATRIX to the colorop type enumeration. This
colorop type represents a pre-defined matrix operation selected via
the FIXED_MATRIX_TYPE enum property. The driver advertises the
supported operations through this property.

Aligns with kernel commit introducing the Fixed Matrix colorop
type for Intel display hardware.

v2: -Naming changes (CSC_FF -> FIXED_MATRIX)

Assisted-by: Claude Opus 4.6
Signed-off-by: Swati Sharma <[email protected]>
---
 include/drm-uapi/drm_mode.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/drm-uapi/drm_mode.h b/include/drm-uapi/drm_mode.h
index de10ce859..0924e38af 100644
--- a/include/drm-uapi/drm_mode.h
+++ b/include/drm-uapi/drm_mode.h
@@ -934,6 +934,17 @@ enum drm_colorop_type {
 	 * LUT size is advertised via the SIZE property.
 	 */
 	DRM_COLOROP_3D_LUT,
+
+	/**
+	 * @DRM_COLOROP_FIXED_MATRIX:
+	 *
+	 * enum string "Fixed Matrix"
+	 *
+	 * A Colorop block that performs a pre-defined matrix operation selected
+	 * via the FIXED_MATRIX_TYPE enum property. The driver advertises the supported
+	 * operations through this property.
+	 */
+	DRM_COLOROP_FIXED_MATRIX,
 };
 
 /**
-- 
2.25.1