From: Jonas Karlman Date: Wed, 4 Mar 2020 10:40:43 +0000 (+0100) Subject: drm/bridge: dw-hdmi: add max bpc connector property X-Git-Tag: v5.7-rc1~136^2~9^2~42 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b8e810e868f73a698af9bde1ac51a332c0f61fc4;p=thirdparty%2Fkernel%2Flinux.git 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 Signed-off-by: Neil Armstrong Reviewed-by: Laurent Pinchart Reviewed-by: Jernej Škrabec Link: https://patchwork.freedesktop.org/patch/msgid/20200304104052.17196-3-narmstrong@baylibre.com --- diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 10f98c9ee77e4..e097f60e64312 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -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);