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authorJonas Karlman <jonas@kwiboo.se>2020-03-04 11:40:43 +0100
committerNeil Armstrong <narmstrong@baylibre.com>2020-03-10 10:51:24 +0100
commitb8e810e868f73a698af9bde1ac51a332c0f61fc4 (patch)
tree82163fea3d417cf96e0e4d57c5779b2d016ec3e2 /drivers/gpu/drm
parentdrm/bridge: dw-hdmi: set mtmdsclock for deep color (diff)
downloadlinux-b8e810e868f73a698af9bde1ac51a332c0f61fc4.tar.xz
linux-b8e810e868f73a698af9bde1ac51a332c0f61fc4.zip
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
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/bridge/synopsys/dw-hdmi.c8
1 files changed, 8 insertions, 0 deletions
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);