Add DRM_BRIDGE_OP_HDMI_SCRAMBLER bridge operation flag and the
corresponding .hdmi_scrambler_{enable|disable}() bridge funcs callbacks.Bridge drivers are expected to set DRM_BRIDGE_OP_HDMI_SCRAMBLER to advertise that they implement source-side scrambling control, which the bridge connector layer uses to wire up the connector's scrambler callbacks. Signed-off-by: Cristian Ciocaltea <[email protected]> --- include/drm/drm_bridge.h | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 4ba3a5deef9a..f36e1e71aa86 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -667,6 +667,26 @@ struct drm_bridge_funcs { const struct drm_display_mode *mode, unsigned long long tmds_rate); + /** + * @hdmi_scrambler_enable: + * + * Enable source-side HDMI 2.0 scrambling and high TMDS clock ratio. + * + * This callback is optional but it must be implemented by bridges that + * set the DRM_BRIDGE_OP_HDMI_SCRAMBLER flag in their &drm_bridge->ops. + */ + int (*hdmi_scrambler_enable)(struct drm_bridge *bridge); + + /** + * @hdmi_scrambler_disable: + * + * Disable source-side HDMI 2.0 scrambling and high TMDS clock ratio. + * + * This callback is optional but it must be implemented by bridges that + * set the DRM_BRIDGE_OP_HDMI_SCRAMBLER flag in their &drm_bridge->ops. + */ + int (*hdmi_scrambler_disable)(struct drm_bridge *bridge); + /** * @hdmi_clear_avi_infoframe: * @@ -1092,6 +1112,12 @@ enum drm_bridge_ops { * &drm_bridge_funcs->hdmi_clear_spd_infoframe callbacks. */ DRM_BRIDGE_OP_HDMI_SPD_INFOFRAME = BIT(10), + /** + * @DRM_BRIDGE_OP_HDMI_SCRAMBLER: The bridge supports + * &drm_bridge_funcs->hdmi_scrambler_enable and + * &drm_bridge_funcs->hdmi_scrambler_disable callbacks. + */ + DRM_BRIDGE_OP_HDMI_SCRAMBLER = BIT(11), }; /** -- 2.54.0
