diff options
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt8912b.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c index 95ac14c09b33..84f5b4316a3c 100644 --- a/drivers/gpu/drm/bridge/lontium-lt8912b.c +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -515,14 +515,27 @@ static int lt8912_attach_dsi(struct lt8912 *lt) return 0; } +static void lt8912_bridge_hpd_cb(void *data, enum drm_connector_status status) +{ + struct lt8912 *lt = data; + + if (lt->bridge.dev) + drm_helper_hpd_irq_event(lt->bridge.dev); +} + static int lt8912_bridge_connector_init(struct drm_bridge *bridge) { int ret; struct lt8912 *lt = bridge_to_lt8912(bridge); struct drm_connector *connector = <->connector; - connector->polled = DRM_CONNECTOR_POLL_CONNECT | - DRM_CONNECTOR_POLL_DISCONNECT; + if (lt->hdmi_port->ops & DRM_BRIDGE_OP_HPD) { + drm_bridge_hpd_enable(lt->hdmi_port, lt8912_bridge_hpd_cb, lt); + connector->polled = DRM_CONNECTOR_POLL_HPD; + } else { + connector->polled = DRM_CONNECTOR_POLL_CONNECT | + DRM_CONNECTOR_POLL_DISCONNECT; + } ret = drm_connector_init(bridge->dev, connector, <8912_connector_funcs, @@ -576,6 +589,10 @@ static void lt8912_bridge_detach(struct drm_bridge *bridge) if (lt->is_attached) { lt8912_hard_power_off(lt); + + if (lt->hdmi_port->ops & DRM_BRIDGE_OP_HPD) + drm_bridge_hpd_disable(lt->hdmi_port); + drm_connector_unregister(<->connector); drm_connector_cleanup(<->connector); } |