From d5cd8280c52bad44d5943fa7501bf9f20718d432 Mon Sep 17 00:00:00 2001
From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Sat, 19 Oct 2024 00:49:14 +0300
Subject: [PATCH] drm/bridge: display-connector: allow YCbCr 420 for HDMI and
 DP

Allow YCbCr 420 output for HDMI and DisplayPort connectors. Other
bridges in the chain still might limit YCbCr 420 support on the
corresponding connector.

Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241019-bridge-yuv420-v1-3-d74efac9e4e6@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/bridge/display-connector.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/bridge/display-connector.c b/drivers/gpu/drm/bridge/display-connector.c
index ab8e00baf3f16..aab9ce7be94c5 100644
--- a/drivers/gpu/drm/bridge/display-connector.c
+++ b/drivers/gpu/drm/bridge/display-connector.c
@@ -270,6 +270,10 @@ static int display_connector_probe(struct platform_device *pdev)
 	/* All the supported connector types support interlaced modes. */
 	conn->bridge.interlace_allowed = true;
 
+	if (type == DRM_MODE_CONNECTOR_HDMIA ||
+	    type == DRM_MODE_CONNECTOR_DisplayPort)
+		conn->bridge.ycbcr_420_allowed = true;
+
 	/* Get the optional connector label. */
 	of_property_read_string(pdev->dev.of_node, "label", &label);
 
-- 
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