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drm/connector: hdmi: Validate supported_formats matches ycbcr_420_allowed

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[ Upstream commit f2f96619590f944f74f3c2b0b57a6dcc5d13cd9f ]

Ensure HDMI connector initialization fails when the presence of
HDMI_COLORSPACE_YUV420 in the given supported_formats bitmask doesn't
match the value of drm_connector->ycbcr_420_allowed.

Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20241224-bridge-conn-fmt-prio-v4-3-a9ceb5671379@collabora.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Cristian Ciocaltea
2024-12-24 20:22:43 +02:00
committed by Greg Kroah-Hartman
parent d756b869bf
commit 0485a718f3
1 changed files with 3 additions and 0 deletions
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drivers/gpu/drm/drm_connector.c
+3
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@@ -507,6 +507,9 @@ int drmm_connector_hdmi_init(struct drm_device *dev,
if (!supported_formats || !(supported_formats & BIT(HDMI_COLORSPACE_RGB)))
return -EINVAL;
if (connector->ycbcr_420_allowed != !!(supported_formats & BIT(HDMI_COLORSPACE_YUV420)))
return -EINVAL;
if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12))
return -EINVAL;