drm/bridge: adv7511: Enable connector polling when no interrupt is specified

Fall back to polling the connector for connect and disconnect events when
no interrupt is specified. Otherwise these events will not be noticed and
monitor hotplug does not work.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20170905121018.11477-3-lars@metafoo.de

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 94d598d8aedf8ebd1563327b12ceac2f47dc7d5c..bd7dbae1119efc5895e93c89a0053936d1e50b11 100644 (file)
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -829,7 +829,11 @@ static int adv7511_bridge_attach(struct drm_bridge *bridge)
                return -ENODEV;
        }
 
-       adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
+       if (adv->i2c_main->irq)
+               adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
+       else
+               adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT |
+                               DRM_CONNECTOR_POLL_DISCONNECT;
 
        ret = drm_connector_init(bridge->dev, &adv->connector,
                                 &adv7511_connector_funcs,