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Subject[PATCH v5 02/11] drm/bridge: dw-hdmi: add max bpc connector property
Date
From: Jonas Karlman <jonas@kwiboo.se>

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>
---
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);
--
2.22.0
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