This commit implements the "active color format" drm property for the Intel
GPU driver.

Signed-off-by: Werner Sembach <w...@tuxedocomputers.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 22 +++++++++++++++++++-
 drivers/gpu/drm/i915/display/intel_dp.c      |  2 ++
 drivers/gpu/drm/i915/display/intel_dp_mst.c  |  5 +++++
 drivers/gpu/drm/i915/display/intel_hdmi.c    |  1 +
 4 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c 
b/drivers/gpu/drm/i915/display/intel_display.c
index 4b00d2f3b3c8..57bec7f452d8 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -10609,6 +10609,21 @@ static void 
intel_atomic_prepare_plane_clear_colors(struct intel_atomic_state *s
        }
 }
 
+static int convert_intel_output_format_into_drm_color_format(enum 
intel_output_format output_format)
+{
+       switch (output_format) {
+       case INTEL_OUTPUT_FORMAT_RGB:
+               return DRM_COLOR_FORMAT_RGB444;
+       case INTEL_OUTPUT_FORMAT_YCBCR420:
+               return DRM_COLOR_FORMAT_YCRCB420;
+       case INTEL_OUTPUT_FORMAT_YCBCR444:
+               return DRM_COLOR_FORMAT_YCRCB444;
+       default:
+               break;
+       }
+       return 0;
+}
+
 static void intel_atomic_commit_tail(struct intel_atomic_state *state)
 {
        struct drm_device *dev = state->base.dev;
@@ -10920,8 +10935,13 @@ static int intel_atomic_commit(struct drm_device *dev,
 
                        drm_connector_set_active_bpc_property(connector,
                                new_crtc_state->pipe_bpp / 3);
-               } else
+                       
drm_connector_set_active_color_format_property(connector,
+                               
convert_intel_output_format_into_drm_color_format(
+                                       new_crtc_state->output_format));
+               } else {
                        drm_connector_set_active_bpc_property(connector, 0);
+                       
drm_connector_set_active_color_format_property(connector, 0);
+               }
        }
 
        drm_atomic_state_get(&state->base);
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c 
b/drivers/gpu/drm/i915/display/intel_dp.c
index 2d7b5318ae7b..9204bc14590a 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4691,9 +4691,11 @@ intel_dp_add_properties(struct intel_dp *intel_dp, 
struct drm_connector *connect
        if (HAS_GMCH(dev_priv)) {
                drm_connector_attach_max_bpc_property(connector, 6, 10);
                drm_connector_attach_active_bpc_property(connector, 6, 10);
+               drm_connector_attach_active_color_format_property(connector);
        } else if (DISPLAY_VER(dev_priv) >= 5) {
                drm_connector_attach_max_bpc_property(connector, 6, 12);
                drm_connector_attach_active_bpc_property(connector, 6, 12);
+               drm_connector_attach_active_color_format_property(connector);
        }
 
        /* Register HDMI colorspace for case of lspcon */
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c 
b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 16bfc59570a5..3e4237df3360 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -856,6 +856,11 @@ static struct drm_connector 
*intel_dp_add_mst_connector(struct drm_dp_mst_topolo
        if (connector->active_bpc_property)
                drm_connector_attach_active_bpc_property(connector, 6, 12);
 
+       connector->active_color_format_property =
+               intel_dp->attached_connector->base.active_color_format_property;
+       if (connector->active_color_format_property)
+               drm_connector_attach_active_color_format_property(connector);
+
        return connector;
 
 err:
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c 
b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 9160e21ac9d6..367aba57b55f 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2516,6 +2516,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, 
struct drm_connector *c
        if (!HAS_GMCH(dev_priv)) {
                drm_connector_attach_max_bpc_property(connector, 8, 12);
                drm_connector_attach_active_bpc_property(connector, 8, 12);
+               drm_connector_attach_active_color_format_property(connector);
        }
 }
 
-- 
2.25.1

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