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

1 files changed, 5 insertions, 1 deletions

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 94d598d8aedf..bd7dbae1119e 100644
--- 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,