linux-kernel - [PATCH 6/6] drm/bridge: dw-hdmi: set bridge's ycbcr_420

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Message-Id: <20241019-bridge-yuv420-v1-6-d74efac9e4e6@linaro.org>
Date: Sat, 19 Oct 2024 00:49:17 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Andrzej Hajda <andrzej.hajda@...el.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>, 
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>, 
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Rob Clark <robdclark@...il.com>, Abhinav Kumar <quic_abhinavk@...cinc.com>, 
 Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, freedreno@...ts.freedesktop.org, 
 Alexander Stein <alexander.stein@...tq-group.com>
Subject: [PATCH 6/6] drm/bridge: dw-hdmi: set bridge's ycbcr_420_allowed
 flag

Set the drm_bridge's ycbcr_420_allowed flag if the YCbCr 420 output is
supported by the hardware.

Cc: Alexander Stein <alexander.stein@...tq-group.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 0031f3c54882..996733ed2c00 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -3503,6 +3503,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev,
 	hdmi->bridge.of_node = pdev->dev.of_node;
 	hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
 
+	if (hdmi->version >= 0x200a)
+		hdmi->bridge.ycbcr_420_allowed = plat_data->ycbcr_420_allowed;
+
 	memset(&pdevinfo, 0, sizeof(pdevinfo));
 	pdevinfo.parent = dev;
 	pdevinfo.id = PLATFORM_DEVID_AUTO;

-- 
2.39.5