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drm/display: bridge_connector: handle ycbcr_420_allowed

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Follow the interlace_allowed example and calculate drm_connector's
ycbcr_420_allowed flag as AND of all drm_bridge's ycbcr_420_allowed
flags in a chain. This is one of the gaps between several
bridge-specific connector implementations and drm_bridge_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-v1-1-d74efac9e4e6@linaro.org
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Dmitry Baryshkov 2024-10-19 00:49:12 +03:00
parent 91e21479c8
commit 3ced1c6875
2 changed files with 9 additions and 2 deletions
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6
drivers/gpu/drm/display/drm_bridge_connector.c
View file

@ -397,11 +397,11 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
bridge_connector->encoder = encoder; bridge_connector->encoder = encoder;
/* /*
* TODO: Handle doublescan_allowed, stereo_allowed and * TODO: Handle doublescan_allowed and stereo_allowed.
* ycbcr_420_allowed.
*/ */
connector = &bridge_connector->base; connector = &bridge_connector->base;
connector->interlace_allowed = true; connector->interlace_allowed = true;
connector->ycbcr_420_allowed = true;
/* /*
* Initialise connector status handling. First locate the furthest * Initialise connector status handling. First locate the furthest
@ -414,6 +414,8 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,
drm_for_each_bridge_in_chain(encoder, bridge) { drm_for_each_bridge_in_chain(encoder, bridge) {
if (!bridge->interlace_allowed) if (!bridge->interlace_allowed)
connector->interlace_allowed = false; connector->interlace_allowed = false;
if (!bridge->ycbcr_420_allowed)
connector->ycbcr_420_allowed = false;
if (bridge->ops & DRM_BRIDGE_OP_EDID) if (bridge->ops & DRM_BRIDGE_OP_EDID)
bridge_connector->bridge_edid = bridge; bridge_connector->bridge_edid = bridge;

5
include/drm/drm_bridge.h
View file

@ -802,6 +802,11 @@ struct drm_bridge {
* modes. * modes.
*/ */
bool interlace_allowed; bool interlace_allowed;
/**
* @ycbcr_420_allowed: Indicate that the bridge can handle YCbCr 420
* output.
*/
bool ycbcr_420_allowed;
/** /**
* @pre_enable_prev_first: The bridge requires that the prev * @pre_enable_prev_first: The bridge requires that the prev
* bridge @pre_enable function is called before its @pre_enable, * bridge @pre_enable function is called before its @pre_enable,