[RFC v4 8/8] drm/i915: Load plane color luts from atomic flip

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Load plane color luts as part of atomic plane updates.
This will be done only if the plane color luts are changed.

v4: Rebase

Signed-off-by: Uma Shankar <uma.shankar@xxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_atomic_plane.c | 4 ++++
 drivers/gpu/drm/i915/intel_color.c        | 8 ++++++++
 drivers/gpu/drm/i915/intel_drv.h          | 1 +
 3 files changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_atomic_plane.c b/drivers/gpu/drm/i915/intel_atomic_plane.c
index dcba645..abc9051 100644
--- a/drivers/gpu/drm/i915/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/intel_atomic_plane.c
@@ -224,6 +224,10 @@ static void intel_plane_atomic_update(struct drm_plane *plane,
 		intel_atomic_get_new_plane_state(state, intel_plane);
 	struct drm_crtc *crtc = new_plane_state->base.crtc ?: old_state->crtc;
 
+	if (new_plane_state->base.color_mgmt_changed) {
+		intel_color_load_plane_luts(&new_plane_state->base);
+	}
+
 	if (new_plane_state->base.visible) {
 		const struct intel_crtc_state *new_crtc_state =
 			intel_atomic_get_new_crtc_state(state, to_intel_crtc(crtc));
diff --git a/drivers/gpu/drm/i915/intel_color.c b/drivers/gpu/drm/i915/intel_color.c
index 2b5c0cd..de28d6b 100644
--- a/drivers/gpu/drm/i915/intel_color.c
+++ b/drivers/gpu/drm/i915/intel_color.c
@@ -666,6 +666,14 @@ void intel_color_load_luts(struct drm_crtc_state *crtc_state)
 	dev_priv->display.load_luts(crtc_state);
 }
 
+void intel_color_load_plane_luts(const struct drm_plane_state *plane_state)
+{
+	struct drm_device *dev = plane_state->plane->dev;
+	struct drm_i915_private *dev_priv = to_i915(dev);
+
+	dev_priv->display.load_plane_luts(plane_state);
+}
+
 int intel_color_check(struct drm_crtc *crtc,
 		      struct drm_crtc_state *crtc_state)
 {
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index 3850a5b..fea772b 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -2179,6 +2179,7 @@ int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_
 void intel_color_set_csc(struct drm_crtc_state *crtc_state);
 void intel_color_load_luts(struct drm_crtc_state *crtc_state);
 void intel_plane_color_init(struct drm_plane *plane);
+void intel_color_load_plane_luts(const struct drm_plane_state *plane_state);
 
 /* intel_lspcon.c */
 bool lspcon_init(struct intel_digital_port *intel_dig_port);
-- 
1.9.1

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