[PATCH 13/18] drm/i915: Add set/get property handlers for CSC correction

[Shashank Sharma]

From: Kausal Malladi <kausalmalladi at gmail.com>

This patch adds set and get property handlers for CSC color correction
and enhancement capability at Pipe level on CHV/BSW platform. The set
function just attaches the CSC blob to CRTC state, that later
gets committed using atomic path.

Signed-off-by: Shashank Sharma <shashank.sharma at intel.com>
Signed-off-by: Kausal Malladi <kausalmalladi at gmail.com>
---
 drivers/gpu/drm/i915/intel_atomic.c        |  5 +++++
 drivers/gpu/drm/i915/intel_color_manager.c | 19 +++++++++++++++++++
 drivers/gpu/drm/i915/intel_drv.h           |  3 +++
 3 files changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_atomic.c b/drivers/gpu/drm/i915/intel_atomic.c
index 1d8cb09..a6f0b71 100644
--- a/drivers/gpu/drm/i915/intel_atomic.c
+++ b/drivers/gpu/drm/i915/intel_atomic.c
@@ -334,6 +334,9 @@ int intel_crtc_atomic_set_property(struct drm_crtc *crtc,
 	if (property == config->cm_palette_before_ctm_property)
 		return intel_color_manager_set_pipe_degamma(dev, state,
 				&crtc->base, val);
+	if (property == config->cm_ctm_property)
+		return intel_color_manager_set_pipe_csc(dev, state,
+				&crtc->base, val);
 
 	DRM_DEBUG_KMS("Unknown crtc property '%s'\n", property->name);
 	return -EINVAL;
@@ -353,6 +356,8 @@ int intel_crtc_atomic_get_property(struct drm_crtc *crtc,
 	if (property == config->cm_palette_before_ctm_property)
 		*val = (state->palette_before_ctm_blob) ?
 			state->palette_before_ctm_blob->base.id : 0;
+	if (property == config->cm_ctm_property)
+		*val = (state->ctm_blob) ? state->ctm_blob->base.id : 0;
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/i915/intel_color_manager.c b/drivers/gpu/drm/i915/intel_color_manager.c
index ae92825..3eea857 100644
--- a/drivers/gpu/drm/i915/intel_color_manager.c
+++ b/drivers/gpu/drm/i915/intel_color_manager.c
@@ -287,6 +287,25 @@ void intel_color_manager_crtc_commit(struct drm_device *dev,
 	}
 }
 
+int intel_color_manager_set_pipe_csc(struct drm_device *dev,
+		struct drm_crtc_state *crtc_state,
+		struct drm_mode_object *obj, uint32_t blob_id)
+{
+	struct drm_property_blob *blob;
+
+	blob = drm_property_lookup_blob(dev, blob_id);
+	if (!blob) {
+		DRM_ERROR("Invalid Blob ID\n");
+		return -EINVAL;
+	}
+
+	if (crtc_state->ctm_blob)
+		drm_property_unreference_blob(crtc_state->ctm_blob);
+
+	crtc_state->ctm_blob = blob;
+	return 0;
+}
+
 int intel_color_manager_set_pipe_degamma(struct drm_device *dev,
 		struct drm_crtc_state *crtc_state,
 		struct drm_mode_object *obj, uint32_t blob_id)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index d3b42ec..cb80e81 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1447,6 +1447,9 @@ int intel_color_manager_set_pipe_gamma(struct drm_device *dev,
 int intel_color_manager_set_pipe_degamma(struct drm_device *dev,
 		struct drm_crtc_state *crtc_state,
 		struct drm_mode_object *obj, uint32_t blob_id);
+int intel_color_manager_set_pipe_csc(struct drm_device *dev,
+		struct drm_crtc_state *crtc_state,
+		struct drm_mode_object *obj, uint32_t blob_id);
 void intel_color_manager_crtc_commit(struct drm_device *dev,
 		struct drm_crtc_state *crtc_state);
 
-- 
1.9.1