diff options
| author | Hsin-Yi Wang <hsinyi@chromium.org> | 2025-08-12 16:17:58 +0800 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2025-08-20 08:21:40 -0700 |
| commit | 407a2fab3c99c40ad1acedaf028e8222da1f0433 (patch) | |
| tree | 127694c8c206d9a46b0e6ce0b72dbd17451bd535 /drivers/gpu/drm | |
| parent | 2f44bb65f28f5f058fe4ab9bc81e5fde5575c473 (diff) | |
drm_bridge: register content protect property
Some bridges can update HDCP status based on userspace requests if they
support HDCP.
The HDCP property is created after connector initialization and before
registration, just like other connector properties.
Add the content protection property to the connector if a bridge
supports HDCP.
Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Fei Shao <fshao@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20250812082135.3351172-2-fshao@chromium.org
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/display/drm_bridge_connector.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c index 8c915427d053..091c5335355a 100644 --- a/drivers/gpu/drm/display/drm_bridge_connector.c +++ b/drivers/gpu/drm/display/drm_bridge_connector.c @@ -20,6 +20,7 @@ #include <drm/drm_modeset_helper_vtables.h> #include <drm/drm_print.h> #include <drm/drm_probe_helper.h> +#include <drm/display/drm_hdcp_helper.h> #include <drm/display/drm_hdmi_audio_helper.h> #include <drm/display/drm_hdmi_cec_helper.h> #include <drm/display/drm_hdmi_helper.h> @@ -641,6 +642,7 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm, struct drm_bridge *bridge, *panel_bridge = NULL; unsigned int supported_formats = BIT(HDMI_COLORSPACE_RGB); unsigned int max_bpc = 8; + bool support_hdcp = false; int connector_type; int ret; @@ -763,6 +765,9 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm, if (drm_bridge_is_panel(bridge)) panel_bridge = bridge; + + if (bridge->support_hdcp) + support_hdcp = true; } if (connector_type == DRM_MODE_CONNECTOR_Unknown) @@ -849,6 +854,10 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm, if (panel_bridge) drm_panel_bridge_set_orientation(connector, panel_bridge); + if (support_hdcp && IS_REACHABLE(CONFIG_DRM_DISPLAY_HELPER) && + IS_ENABLED(CONFIG_DRM_DISPLAY_HDCP_HELPER)) + drm_connector_attach_content_protection_property(connector, true); + return connector; } EXPORT_SYMBOL_GPL(drm_bridge_connector_init); |