On Wed, 10 Apr 2024, Thomas Zimmermann <tzimmermann@xxxxxxx> wrote:
> DisplayLink devices do not generate hotplug events. Remove the poll
> flag DRM_CONNECTOR_POLL_HPD, as it may not be specified together with
> DRM_CONNECTOR_POLL_CONNECT or DRM_CONNECTOR_POLL_DISCONNECT.
>
> Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Fixes: afdfc4c6f55f ("drm/udl: Fixed problem with UDL adpater reconnection")
> Cc: Robert Tarasov <tutankhamen@xxxxxxxxxxxx>
> Cc: Alex Deucher <alexander.deucher@xxxxxxx>
> Cc: Dave Airlie <airlied@xxxxxxxxxx>
> Cc: Sean Paul <sean@xxxxxxxxxx>
> Cc: Thomas Zimmermann <tzimmermann@xxxxxxx>
> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
> Cc: <stable@xxxxxxxxxxxxxxx> # v4.15+
Reviewed-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/udl/udl_modeset.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/udl/udl_modeset.c b/drivers/gpu/drm/udl/udl_modeset.c
> index 7702359c90c22..751da3a294c44 100644
> --- a/drivers/gpu/drm/udl/udl_modeset.c
> +++ b/drivers/gpu/drm/udl/udl_modeset.c
> @@ -527,8 +527,7 @@ struct drm_connector *udl_connector_init(struct drm_device *dev)
>
> drm_connector_helper_add(connector, &udl_connector_helper_funcs);
>
> - connector->polled = DRM_CONNECTOR_POLL_HPD |
> - DRM_CONNECTOR_POLL_CONNECT |
> + connector->polled = DRM_CONNECTOR_POLL_CONNECT |
> DRM_CONNECTOR_POLL_DISCONNECT;
>
> return connector;
--
Jani Nikula, Intel
