[PATCH v3 07/21] drm/atomic: Pass crtc_color_pipeline client cap to atomic check

[Ariel D'Alessandro]

From: "Nícolas F. R. A. Prado" <nfraprado at collabora.com>

Pass the state of the CRTC (post-blend) color pipeline client cap to the
atomic state so that drivers can rely on it to enable color pipeline
functionality and ignore the deprecated color management CRTC
properties.

Signed-off-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
Co-developed-by: Ariel D'Alessandro <ariel.dalessandro at collabora.com>
Signed-off-by: Ariel D'Alessandro <ariel.dalessandro at collabora.com>
Reviewed-by: Louis Chauvet <louis.chauvet at bootlin.com>
---
 drivers/gpu/drm/drm_atomic_uapi.c |  1 +
 include/drm/drm_atomic.h          | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index d1bc78b2567a9..03f5a80448d10 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -1668,6 +1668,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
 	state->acquire_ctx = &ctx;
 	state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET);
 	state->plane_color_pipeline = file_priv->plane_color_pipeline;
+	state->crtc_color_pipeline = file_priv->crtc_color_pipeline;
 
 retry:
 	copied_objs = 0;
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 74ce26fa8838b..7eb21c0426105 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -560,6 +560,26 @@ struct drm_atomic_state {
 	 */
 	bool plane_color_pipeline : 1;
 
+	/**
+	 * @crtc_color_pipeline:
+	 *
+	 * Indicates whether this atomic state originated with a client that
+	 * set the DRM_CLIENT_CAP_CRTC_COLOR_PIPELINE.
+	 *
+	 * Drivers and helper functions should use this to ignore legacy
+	 * properties that are incompatible with the drm_crtc COLOR_PIPELINE
+	 * behavior, such as:
+	 *
+	 *  - GAMMA_LUT
+	 *  - DEGAMMA_LUT
+	 *  - GAMMA_LUT_SIZE
+	 *  - CTM
+	 *
+	 * or any other driver-specific properties that might affect pixel
+	 * values.
+	 */
+	bool crtc_color_pipeline : 1;
+
 	/**
 	 * @colorops:
 	 *

-- 
2.51.0