950-0530-drm-connector-Add-a-helper-to-attach-the-colorspace-.patch

From a7f87202ec94410eabff8df2f4fced0141794a9a Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Fri, 9 Apr 2021 17:07:32 +0200
Subject: [PATCH] drm/connector: Add a helper to attach the colorspace
 property

The intel driver uses the same logic to attach the Colorspace property
in multiple places and we'll need it in vc4 too. Let's move that common
code in a helper.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/drm_connector.c               | 20 +++++++++++++++++++
 .../gpu/drm/i915/display/intel_connector.c    |  3 +--
 include/drm/drm_connector.h                   |  1 +
 3 files changed, 22 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -2165,6 +2165,26 @@ int drm_connector_attach_hdr_output_meta
 EXPORT_SYMBOL(drm_connector_attach_hdr_output_metadata_property);
 
 /**
+ * drm_connector_attach_colorspace_property - attach "Colorspace" property
+ * @connector: connector to attach the property on.
+ *
+ * This is used to allow the userspace to signal the output colorspace
+ * to the driver.
+ *
+ * Returns:
+ * Zero on success, negative errno on failure.
+ */
+int drm_connector_attach_colorspace_property(struct drm_connector *connector)
+{
+	struct drm_property *prop = connector->colorspace_property;
+
+	drm_object_attach_property(&connector->base, prop, DRM_MODE_COLORIMETRY_DEFAULT);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_colorspace_property);
+
+/**
  * drm_connector_atomic_hdr_metadata_equal - checks if the hdr metadata changed
  * @old_state: old connector state to compare
  * @new_state: new connector state to compare
--- a/drivers/gpu/drm/i915/display/intel_connector.c
+++ b/drivers/gpu/drm/i915/display/intel_connector.c
@@ -297,6 +297,5 @@ intel_attach_colorspace_property(struct
 		return;
 	}
 
-	drm_object_attach_property(&connector->base,
-				   connector->colorspace_property, 0);
+	drm_connector_attach_colorspace_property(connector);
 }
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1622,6 +1622,7 @@ int drm_connector_attach_scaling_mode_pr
 					       u32 scaling_mode_mask);
 int drm_connector_attach_vrr_capable_property(
 		struct drm_connector *connector);
+int drm_connector_attach_colorspace_property(struct drm_connector *connector);
 int drm_connector_attach_hdr_output_metadata_property(struct drm_connector *connector);
 bool drm_connector_atomic_hdr_metadata_equal(struct drm_connector_state *old_state,
 					     struct drm_connector_state *new_state);