Drivers will need to know whether an atomic check/commit
originated from a client with DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE
so they can ignore deprecated properties, like COLOR_ENCODING
and COLOR_RANGE.

Pass the plane_color_pipeline bit to drm_atomic_state.

Signed-off-by: Harry Wentland <harry.wentl...@amd.com>
---
 drivers/gpu/drm/drm_atomic_uapi.c |  1 +
 include/drm/drm_atomic.h          | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic_uapi.c 
b/drivers/gpu/drm/drm_atomic_uapi.c
index 23b248987a7c..c7c1c614b0d9 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -1571,6 +1571,7 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
        drm_modeset_acquire_init(&ctx, DRM_MODESET_ACQUIRE_INTERRUPTIBLE);
        state->acquire_ctx = &ctx;
        state->allow_modeset = !!(arg->flags & DRM_MODE_ATOMIC_ALLOW_MODESET);
+       state->plane_color_pipeline = file_priv->plane_color_pipeline;
 
 retry:
        copied_objs = 0;
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 2346f19eda9f..61e6b5553eec 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -404,6 +404,23 @@ struct drm_atomic_state {
         * states.
         */
        bool duplicated : 1;
+
+       /**
+        * @plane_color_pipeline : 1
+        *
+        * Indicates whether this atomic state originated with a client that
+        * set the DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE.
+        *
+        * Drivers and helper functions should use this to ignore legacy
+        * properties that are incompatible with the drm_plane COLOR_PIPELINE
+        * behavior, such as
+        *  - COLOR_RANGE
+        *  - COLOR_ENCODING
+        * or any other driver-specific properties that might affect pixel
+        * values.
+        */
+       bool plane_color_pipeline : 1;
+
        struct __drm_colorops_state *colorops;
        struct __drm_planes_state *planes;
        struct __drm_crtcs_state *crtcs;
-- 
2.44.0

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