[v2 07/25] drm: Add 1D LUT multi-segmented color op

[Uma Shankar]

From: Chaitanya Kumar Borah <chaitanya.kumar.borah at intel.com>

Add support for color ops that can be programmed
by 1 dimensional multi segmented Look Up Tables.

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/drm_atomic.c      | 4 ++++
 drivers/gpu/drm/drm_atomic_uapi.c | 3 +++
 include/uapi/drm/drm_mode.h       | 8 ++++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 8a75f4a0637a..f344d64d42ce 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -802,6 +802,10 @@ static void drm_atomic_colorop_print_state(struct drm_printer *p,
 		drm_printf(p, "\tinterpolation=%s\n", drm_get_colorop_lut1d_interpolation_name(colorop->lut1d_interpolation));
 		drm_printf(p, "\tdata blob id=%d\n", state->data ? state->data->base.id : 0);
 		break;
+	case DRM_COLOROP_1D_LUT_MULTSEG:
+		drm_printf(p, "\thw cap blob id=%d\n", state->hw_caps ? state->hw_caps->base.id : 0);
+		drm_printf(p, "\tdata blob id=%d\n", state->data ? state->data->base.id : 0);
+		break;
 	case DRM_COLOROP_CTM_3X3:
 		drm_printf(p, "\tdata blob id=%d\n", state->data ? state->data->base.id : 0);
 		break;
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index 46cc7b0df6e8..326159bff91c 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -720,6 +720,9 @@ static int drm_atomic_color_set_data_property(struct drm_colorop *colorop,
 		size = modes[index].lut_stride[0] * modes[index].lut_stride[1] * modes[index].lut_stride[2] *
 		       sizeof(struct drm_color_lut);
 		break;
+	case DRM_COLOROP_1D_LUT_MULTSEG:
+		elem_size = sizeof(struct drm_color_lut_32);
+		break;
 	default:
 		/* should never get here */
 		return -EINVAL;
diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h
index 9ed8b1b1357a..d126a5410eea 100644
--- a/include/uapi/drm/drm_mode.h
+++ b/include/uapi/drm/drm_mode.h
@@ -923,6 +923,14 @@ enum drm_colorop_type {
 	 */
 	DRM_COLOROP_CTM_3X4,
 
+	/**
+	 * @DRM_COLOROP_1D_LUT_MULTSEG:
+	 *
+	 * A 3x4 matrix. Its values are specified via the
+	 * &drm_color_ctm_3x4 struct provided via the DATA property.
+	 */
+	DRM_COLOROP_1D_LUT_MULTSEG,
+
 	/**
 	 * @DRM_COLOROP_CTM_3X3:
 	 *
-- 
2.42.0