Declare which infoframes are supported via the .hdmi_write_infoframe()
interface. Return -EOPNOTSUPP if the driver is asked to write or clear
the unsupported InfoFrame.

Reviewed-by: Daniel Stone <daniels@collabora.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
---
 drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
index 39332c57f2c54296f39e27612544f4fbf923863f..9a195c479bcaf112f67b6a2f085402d0e33896de 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c
@@ -936,6 +936,7 @@ static int dw_hdmi_qp_bridge_clear_infoframe(struct drm_bridge *bridge,
 		break;
 	default:
 		dev_dbg(hdmi->dev, "Unsupported infoframe type %x\n", type);
+		return -EOPNOTSUPP;
 	}
 
 	return 0;
@@ -961,7 +962,7 @@ static int dw_hdmi_qp_bridge_write_infoframe(struct drm_bridge *bridge,
 
 	default:
 		dev_dbg(hdmi->dev, "Unsupported infoframe type %x\n", type);
-		return 0;
+		return -EOPNOTSUPP;
 	}
 }
 
@@ -1084,6 +1085,10 @@ struct dw_hdmi_qp *dw_hdmi_qp_bind(struct platform_device *pdev,
 	hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
 	hdmi->bridge.vendor = "Synopsys";
 	hdmi->bridge.product = "DW HDMI QP TX";
+	hdmi->bridge.supported_infoframes =
+		DRM_CONNECTOR_INFOFRAME_AUDIO |
+		DRM_CONNECTOR_INFOFRAME_AVI |
+		DRM_CONNECTOR_INFOFRAME_DRM;
 
 	hdmi->bridge.ddc = dw_hdmi_qp_i2c_adapter(hdmi);
 	if (IS_ERR(hdmi->bridge.ddc))

-- 
2.47.3