[PATCH v6 05/23] drm: Add get property support for color manager

[Shashank Sharma <shashank.sharma@intel.com>]

As per the DRM get_property implementation for a blob, framework
is supposed to return the blob_id to the caller. All the color
management blobs are saved in CRTC state during the set call.

This patch adds get_property support for color management
properties, by referring to the existing blob for the property
and passing its blob_id.

Signed-off-by: Shashank Sharma <shashank.sharma@intel.com>
---
 drivers/gpu/drm/drm_atomic.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 12a34e9..b49aaeb 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -499,6 +499,14 @@ drm_atomic_crtc_get_property(struct drm_crtc *crtc,
 		*val = state->active;
 	else if (property == config->prop_mode_id)
 		*val = (state->mode_blob) ? state->mode_blob->base.id : 0;
+	else if (property == config->cm_palette_after_ctm_property)
+		*val = (state->palette_after_ctm_blob) ?
+			state->palette_after_ctm_blob->base.id : 0;
+	else if (property == config->cm_palette_before_ctm_property)
+		*val = (state->palette_before_ctm_blob) ?
+			state->palette_before_ctm_blob->base.id : 0;
+	else if (property == config->cm_ctm_property)
+		*val = (state->ctm_blob) ? state->ctm_blob->base.id : 0;
 	else if (crtc->funcs->atomic_get_property)
 		return crtc->funcs->atomic_get_property(crtc, state, property, val);
 	else
-- 
1.9.1

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