linux-kernel - [PATCH v3 11/14] drm/i915/display: Add handling for new "active color range" property

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Message-Id: <20210615141426.6001-12-wse@tuxedocomputers.com>
Date:   Tue, 15 Jun 2021 16:14:22 +0200
From:   Werner Sembach <wse@...edocomputers.com>
To:     harry.wentland@....com, sunpeng.li@....com,
        alexander.deucher@....com, christian.koenig@....com,
        airlied@...ux.ie, daniel@...ll.ch,
        maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
        tzimmermann@...e.de, jani.nikula@...ux.intel.com,
        joonas.lahtinen@...ux.intel.com, rodrigo.vivi@...el.com,
        amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org, intel-gfx@...ts.freedesktop.org
Cc:     Werner Sembach <wse@...edocomputers.com>
Subject: [PATCH v3 11/14] drm/i915/display: Add handling for new "active color range" property

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

Signed-off-by: Werner Sembach <wse@...edocomputers.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 4 ++++
 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, 12 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 2cf09599ddc3..09d7c3da105a 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -10933,10 +10933,14 @@ static int intel_atomic_commit(struct drm_device *dev,
 			drm_connector_set_active_bpc_property(connector, new_crtc_state->pipe_bpp / 3);
 			drm_connector_set_active_color_format_property(connector,
 				convert_intel_output_format_into_drm_color_format(new_crtc_state->output_format));
+			drm_connector_set_active_color_range_property(connector,
+				new_crtc_state->limited_color_range? DRM_MODE_COLOR_RANGE_LIMITED_16_235
+								   : DRM_MODE_COLOR_RANGE_FULL);
 		}
 		else {
 			drm_connector_set_active_bpc_property(connector, 0);
 			drm_connector_set_active_color_format_property(connector, 0);
+			drm_connector_set_active_color_range_property(connector, DRM_MODE_COLOR_RANGE_UNSET);
 		}
 	}
 
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 01fdb9141592..d648582d0786 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4692,11 +4692,13 @@ intel_dp_add_properties(struct intel_dp *intel_dp, struct drm_connector *connect
 		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);
+		drm_connector_attach_active_color_range_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);
+		drm_connector_attach_active_color_range_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 3e4237df3360..cb876175258f 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -861,6 +861,11 @@ static struct drm_connector *intel_dp_add_mst_connector(struct drm_dp_mst_topolo
 	if (connector->active_color_format_property)
 		drm_connector_attach_active_color_format_property(connector);
 
+	connector->active_color_range_property =
+		intel_dp->attached_connector->base.active_color_range_property;
+	if (connector->active_color_range_property)
+		drm_connector_attach_active_color_range_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 367aba57b55f..dacac23a6c30 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2517,6 +2517,7 @@ intel_hdmi_add_properties(struct intel_hdmi *intel_hdmi, struct drm_connector *c
 		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);
+		drm_connector_attach_active_color_range_property(connector);
 	}
 }
 
-- 
2.25.1