Existing LUT precision structure is having only 16 bit
precision. This is not enough for upcoming enhanced hardwares
and advance usecases like HDR processing. Hence added a new
structure with 32 bit precision values.
Co-developed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@xxxxxxxxx>
Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
include/uapi/drm/drm_mode.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index a21825ee93e2..1cd656b0e994 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -943,6 +943,23 @@ struct hdr_output_metadata {
};
};
+/**
+ * struct drm_color_lut_ext - Represents high precision lut values
+ *
+ * Creating 64 bit palette entries for better data
+ * precision. This will be required for HDR and
+ * similar color processing usecases.
+ */
+struct drm_color_lut_ext {
+ /*
+ * Data is U32.32 fixed point format.
+ */
+ __u64 red;
+ __u64 green;
+ __u64 blue;
+ __u64 reserved;
+};
+
/**
* enum color_op_block
*
--
2.38.1
