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drm/bridge: dw-hdmi: add max bpc connector property 

Add the max_bpc property to the dw-hdmi connector to prepare support
for 10, 12 & 16bit output support.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Jernej Škrabec <jernej.skrabec@siol.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-3-narmstrong@baylibre.com
This commit is contained in:
Jonas Karlman 2020-03-04 11:40:43 +01:00 committed by Neil Armstrong
parent c6cae70234
commit b8e810e868
1 changed files with 8 additions and 0 deletions
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8
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
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@ -2414,6 +2414,14 @@ static int dw_hdmi_bridge_attach(struct drm_bridge *bridge,
DRM_MODE_CONNECTOR_HDMIA,
hdmi->ddc);
/*
* drm_connector_attach_max_bpc_property() requires the
* connector to have a state.
*/
drm_atomic_helper_connector_reset(connector);
drm_connector_attach_max_bpc_property(connector, 8, 16);
if (hdmi->version >= 0x200a && hdmi->plat_data->use_drm_infoframe)
drm_object_attach_property(&connector->base,
connector->dev->mode_config.hdr_output_metadata_property, 0);