From b8e810e868f73a698af9bde1ac51a332c0f61fc4 Mon Sep 17 00:00:00 2001 From: Jonas Karlman Date: Wed, 4 Mar 2020 11:40:43 +0100 Subject: [PATCH] drm/bridge: dw-hdmi: add max bpc connector property MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 10f98c9ee77e..e097f60e6431 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);